Technical Manual Downflow - Airedale International Air Conditioning

VER 

Downflow – Precision Air Conditioning 

6 kW - 60 kW 

TECHNICAL MANUAL

2 

-DF 

AB OUT AIR ED AL E 

About Airedale Products & Customer Services 

WARRANTY 

Warranty is only valid in the 

event that 

CAUTION 

SPARES 

TRAINING 

Precision Air Conditioning 

Technical Manual : 6259014 v1.3.0 02_2013 


All AIAC products or parts (non consumable) supplied for installation within the UK mainland and 

commissioned by an AIAC engineer, carry a full Parts & Labour warranty for a period of 12 months 

from the date of commissioning or 18 months from the date of despatch, whichever is the sooner. 

Parts or Equipment supplied by AIAC for installation within the UK or for Export that are properly 

commissioned in accordance with AIAC standards and specification, not commissioned by an AIAC 

engineer; carry a 12 month warranty on non consumable Parts only from the date of commissioning 

or 18 months from the date of despatch, whichever is the sooner. 

Parts or equipment installed or commissioned not to acceptable AIAC standards or specification 

invalidate all warranty. 

In the period between delivery and commissioning the equipment: is properly protected & serviced as 

per the AIAC installation & maintenance manual provided where applicable the glycol content is 

maintained to the correct level. 

In the event of a problem being reported and once warranty is confirmed as valid under the given 

installation and operating conditions, the Company will provide the appropriate warranty coverage 

(as detailed above) attributable to the rectification of any affected Airedale equipment supplied 

(excluding costs for any specialist access or lifting equipment that must be ordered by the customer). 

Any spare part supplied by Airedale under warranty shall be warranted for the unexpired period of 

the warranty or 3 months from delivery, whichever period is the longer. 

To be read in conjunction with the Airedale Conditions of Sale - Warranty and Warranty Procedure, 

available upon request. 

Warranty cover is not a substitute for maintenance. Warranty cover is conditional to maintenance 

being carried out in accordance with the recommendations provided during the warranty period. 

Failure to have the maintenance procedures carried out will invalidate the warranty and any liabilities 

by Airedale International Air Conditioning Ltd. 

A spares list for 1, 3 and 5 years will be supplied with every unit and is also available from our 

Spares department on request. 

As well as our comprehensive range of products, Airedale offers a modular range of Refrigeration 

and Air Conditioning Training courses, for further information please contact Airedale. 

CUSTOMER SERVICES For further assistance, please e-mail: enquiries@airedale.com or telephone: 

Customer Services 

Legal Notices 

UK Sales Enquiries + 44 (0) 113 238 7789 enquiries@airedale.com 

International Enquiries + 44 (0) 113 239 1000 enquiries@airedale.com 

Spares Hot Line + 44 (0) 113 238 7878 spares@airedale.com 

Airedale Service + 44 (0) 113 239 1000 service@airedale.com 

Technical Support + 44 (0) 113 239 1000 tech.support@airedale.com 

Training Enquiries + 44 (0) 113 239 1000 marketing@airedale.com 

For information, visit us at our Web Site: www.airedale.com 

AIAC Ltd endeavours to ensure that the information in this document is correct and fairly stated, but 

none of the statements are to be relied upon as a statement or representation of fact. AIAC Ltd does 

not accept liability for any error or omission, or for any reliance placed on the information contained 

in this document. 

The development of Airedale products and services is continuous and the information in this 

document may not be up to date. It is important to check the current position with AIAC Ltd at the 

address stated. This document is not part of a contract or licence unless expressly agreed. 

No part of this document may be reproduced or transmitted in any form or by any means, electronic 

or mechanical, including photocopying, recording, or information storage and retrieval systems, for 

any purpose other than the purchaser’s personal use, without the express written permission of 

AIAC Ltd. 

2013 Airedale International Air Conditioning Limited. All rights reserved. Printed in the UK.

Precision Air Conditioning -DF 

CONTENT S 

Contents 

Warranty ................................................................................................................................................. 2 

General Description 4 

Unit Identification .................................................................................................................................... 4 

Introduction ............................................................................................................................................. 4 

Standard Features .................................................................................................................................. 5 

Optional Extras - Energy Saving ............................................................................................................. 9 

Optional Extras - General........................................................................................................................ 9 

Dimensional Data 13 

Dimensions ........................................................................................................................................... 13 

Weights ................................................................................................................................................ 13 

Positioning ............................................................................................................................................ 15 

Controls 16 

Standard Features ................................................................................................................................ 17 

Optional Extras ..................................................................................................................................... 18 

Sound Data 20 

Method of Sound Measurement ............................................................................................................ 20 

Design Features & Information 21 

Electronic Expansion Valves (EEV)....................................................................................................... 21 

Condensate Pump (Optional Extra)....................................................................................................... 22 

Humidification ....................................................................................................................................... 23 

AIR COOLED (X) & WATER COOLED (WX) MODELS 24 

Performance Data - Air & Water Cooled Models 24 

Cooling Duties - X Type Models ............................................................................................................ 24 

Operating Limits - X Type Models ......................................................................................................... 24 

Cooling Duties - WX Type Models ........................................................................................................ 26 

Operating Limits - WX Type Models ...................................................................................................... 26 

General Specification - Air & Water Cooled Models 27 

Mechanical Data ................................................................................................................................... 27 

Electrical Data ...................................................................................................................................... 31 

Sound Data - Air & Water Cooled Models 35 

Design Data - Air & Water Cooled Models 37 

Waterside Pressure Drop (kPa) - WX Type Models .............................................................................. 37 

Low Pressure Hot Water (Optional Extra) - X & WX Type Models ......................................................... 38 

System Pipework Schematic ................................................................................................................. 39 

Refrigerant Pipe Sizing Guide - X Type Models .................................................................................... 40 

Refrigerant Charging Guide - X Type Models ........................................................................................ 40 

Ethylene Glycol Correction Factors ....................................................................................................... 42 

Interconnecting Wiring .......................................................................................................................... 43 

CHILLED WATER (CW) MODELS 44 

Performance Data - Chilled Water Models 44 

Cooling Duties ...................................................................................................................................... 44 

General Specification - Chilled Water Models 45 



Sound Data - Chilled Water Models 51 

Design Data - Chilled Water Models 53 

Waterside Pressure Drop (kPa) ............................................................................................................ 53 

Low Pressure Hot Water (Optional Extra) ............................................................................................. 53 

System Pipework Schematic ................................................................................................................. 54 

Ethylene Glycol Correction Factors ....................................................................................................... 55 


OUTDOOR UNITS - AIR COOLED CONDENSERS 57 

General Description 57 

Unit Identification .................................................................................................................................. 57 

Introduction ........................................................................................................................................... 57 

Standard Features ................................................................................................................................ 57 

Optional Extras ..................................................................................................................................... 58 

Dimensional Data 59 

General Specification 62 




Performance Data 65 

Capacity Data ....................................................................................................................................... 65 



3

GENERAL 

4 

-DF 

Indoor Unit 

General Description 

UNIT IDENTIFICATION 




EASICOOL PRECISION AIR CONDITIONING RANGE 

DF Downflow Configuration 

6-60 Model Size (Expressed as Nominal Cooling in kW) 

X Air Cooled Remote Condenser 

WX Water Cooled 

CW Chilled Water 

2 Tandem Compressor Set 

EZ Series - EasiCool 

Example DF22X2-EZ 

INTRODUCTION Designed to provide environmental Precision air conditioning for applications such as 

Telecommunication Facilities, Computer Rooms, Clean Rooms and laboratories, the 

EasiCool range is available 17 models as direct expansion air cooled, 17 models as 

Water Cooled or 17 models as chilled water all single circuit. Full function units provide 

full control of temperature, humidity and filtration. 

CE DIRECTIVE 

The modular design of the EasiCool allows for flexible installation by grouping same or 

differing models and capacities to be installed side by side, thus providing multi 

circuit functionality. 

A full range of air cooled condensers is available with the direct expansion indoor units to 

provide a matched system with optional performance upgrade, refer to Outdoor Units - Air 

Cooled Condensers. 

Also available is a full range of Airedale water chillers to complement the chilled water 

indoor units. 

The unit is designed for the use of R407C, please refer to Optional Extras - General for 

alternative refrigerants. 

This manual covers the full range of Downflow configured models. For Upflow 

configured models, please refer to the Upflow Technical Manual. 

Airedale certify that the equipment detailed in this manual conforms with the following 

EC Directives: 

Electromagnetic Compatibility Directive (EMC) 2004/108/EC 

Low Voltage Directive (LVD) 2006/95/EC 

Machinery Directive (MD) 89/392/EEC in the version 

2006/42/EC 

Pressure Equipment Directive (PED) 97/23/EC 

To comply with these directives appropriate national & harmonised standards have been 

applied. These are listed on the Declaration of Conformity, supplied with each product.



STANDARD FEATURES 

Construction The cabinet comprises an anodised aluminium frame with black nylon corners and 

removable galvanised sheet steel panels. The unit panels are manufactured from 

galvanised sheet steel coated with epoxy baked powder paint to provide a durable finish. 

Standard unit colour is Light Grey (RAL 7035). 

Cabinets are lined internally with fire resistant foam (UL94 V0) thermal and 

acoustic insulation: 

30mm deep for removable panels 

12mm deep for remaining internal surfaces 

As standard, the cabinet doors are full height and secured by M6 bolts, a 4mm Allen key 

is provided for access. 

Hinged and lock type doors are available as an option, please refer to Optional 

Extras - General. 

Unit design incorporates a series of M6 fixings to the top and bottom face for offering up 

customer ductwork, please contact Airedale for further details. 

Sizes 6 - 25 Dependent upon model type, components such as the expansion valve, compressor, 

humidifier and sight glass are contained within an acoustically lined enclosure to provide 

both ease of maintenance and to minimise sound emission. 

Evaporator Large surface area coil(s) ideally positioned to optimise airflow and heat transfer, 

manufactured from refrigeration quality copper tube with mechanically bonded 

aluminium fins. 

The copper tube is internally rifled for improved heat transfer. 

Fins are coated with a non-stick acrylic film (hydrophilic) which provides additional 

corrosion protection and efficient surface water removal for improved performance. 

The cooling coil is mounted over a full width stainless steel condensate tray. 

Factory pressure tested to 40Bar. 

X Models Only Sweat copper pipe for brazed connection as standard. 

Condenser 

(WX Models) 

Stainless steel high efficiency brazed plate heat exchanger(s) will allow optimum heat 

transfer between media. 

Factory pressure tested to 40Bar. 

Sweat copper pipe for brazed connection as standard. Optional threaded connections 

available refer to Optional Extras - General. 



5 

GENERAL

GENERAL 

6 

-DF 



Chilled Water Coil 

(CW Models) 

Fan & Motor Assembly 

Size 6 - 25 

(Direct Drive) 




Large surface area coil(s) ideally positioned to optimise airflow and heat transfer, 

manufactured from refrigeration quality copper tubes with mechanically bonded 

aluminium fins. 

Fins are coated with a non-stick acrylic film (hydrophilic) which provides additional 

corrosion protection and efficient surface water removal for improved performance. 

The cooling coil is mounted over a full width stainless steel condensate tray. 

For control of water flow, a 3 port, raise/lower type, modulating mixing control valve is 

fitted as standard. 

Maximum operating pressure 10bar. Factory pressure tested to 20Bar. 

Sweat copper pipe for brazed connection as standard. Optional threaded connections 

available refer to Optional Extras - General. 

Units utilise a double inlet, forward curved, direct drive centrifugal fan with integral shaft 

mounted motor which is statically and dynamically balanced for quiet operation. Impellers 

and casings are galvanised for protection against corrosion. The integral motor runs in 

sealed for life, lubricated bearings and features automatic thermal overload protection. 

Fan speed, airflow and external static pressure are controlled by the use of a manually 

adjustable voltage controller via the microprocessor display keypad which offers easy on 

site adjustment. 

Adjustable by increments of 1% within + / - 10% of the set point. 

Sizes 6 - 17 Units have a single fan and motor assembly. 

Sizes 22 - 25 Units have 2 fan and motor assemblies. 

Size 26 - 60 

(Belt & Pulley) 

Double inlet forward curved centrifugal fan(s) with galvanised impellers and casing. 

Mild steel fan shaft with lifetime lubricated ball bearings. 

Fan and drive assembly design is based on a minimum of 25,000 hours life expectancy. 

Each fan assembly is separately driven by a high efficiency air cooled motor through a 

pulley and ‘V’ belt drive. The complete motor assembly is mounted on a fully adjustable 

platform for belt tensioning. Motor specification conforms to Efficiency Class 2 (EFF2). 

With integrated plummer block bearings (4kW motors only). 

Sizes 26 - 45 Units have a single fan and motor assembly. 

Sizes 50 - 60 Units have 2 fan and motor assemblies.




Airflow Switch An adjustable differential pressure switch activates a visual alarm at the status panel and 

breaks the power supply in the event of a fan or motor failure. 

Compressor Compressor(s) are mounted on the base via the use of vibration isolators. Each 

compressor is designed for use with R407C refrigerant. 

X & WX Models Utilise a single hermetic scroll compressor fitted as standard with: 

Thermal motor protection Internal or external (dependent upon model size) 

High temperature discharge protection 

X2 & WX2 Models Utilise a Tandem hermetic scroll compressor set, to provide 2 stages of control, fitted as 

standard with: 

Thermal motor protection Internal or external (dependent upon model size) 

High temperature discharge protection 

Sight glass 

For further details, refer to Design Features & Information, Tandem Compressors. 

Refrigeration Each refrigeration circuit features as standard: 

X Models Externally equalised thermostatic expansion valve (TEV) 

Sight glass 

Filter drier (loose) 

Low pressure switch - manual reset 

High pressure switch - manual reset 

Liquid line pressure transducer 

Holding charge of Inert Gas 

WX Models Externally equalised thermostatic expansion valve (TEV) 

Sight glass 

Head Pressure Control (3 way mechanical) 

Filter drier 

Low pressure switch - manual reset 

High pressure switch - manual reset 

Liquid line pressure transducer 

Full operating charge of R407C 

Bleed valve 

Binder points 



7 

GENERAL

GENERAL 

8 

-DF 



Head Pressure Control - 

Intelligent Modulation 

(X Models) 

Head Pressure Control 

(WX Models) 




The system is fitted with a voltage regulating fan speed controller which allows set point 

adjustment and system monitoring via the indoor unit 

microprocessor controller. 

A pressure transducer is fitted to the liquid line which in turn feeds back the head 

pressure to the microprocessor. The condenser fan speed can then modulate via the 

controller to provide optimum control under varying ambient conditions. The head 

pressure can be monitored via the display keypad. 

Units fitted with thermostatic expansion valves have the head pressure factory set to 

17 barg (247 psig). 

Units fitted with optional electronic expansion valves have the head pressure factory set 

to 14 barg (203 psig). 

A 3 way mechanical regulating valve senses the compressor head pressure and allows 

cooling water to flow to the condenser, to by-pass the condenser, or to allow water flow to 

both condenser and by-pass line in order to maintain correct refrigerant head pressure. 

A pressure transducer is fitted to the liquid line which enables the head pressure to be 

monitored via the display keypad. 

Filters Pleated disposable panel filters in a rigid frame. Conform to BS EN 779-G4. 

Access and removal from unit front. 

As standard the microprocessor provides an alarm following a pre set run 

time limit being exceeded, refer to Controls -Filter Change Alarm. 

Electrical The control panel contains the necessary compressor starter contactors, transformer, sub 

circuit protection, volt free contacts for a common alarm and mains and inter-connecting 

terminals. The panel is situated within the cabinet and can be removed for essential 

maintenance of other components within the unit. The electrical control panels are wired 

to the latest European standards and codes of practice. 

Sub Fusing The electrical mains supply for the system’s outdoor unit(s) is supplied via the indoor unit. 

MCBs are fitted for protection. 

Main Electric Isolator To ensure complete unit isolation of the electrical panel during adjustment and 

maintenance a door interlocking isolator is provided as standard. 

Controls Units are fitted with the microprocessor controller which offers powerful 

analogue and digital control to meet a wide range of monitoring and control. Features a 

communication port plus networking and BMS connections. 

A 4 x 20 character backlit LCD display keypad assembly is used to view the unit status 

and allow operator adjustment. 

For full details, please refer to the Controls section.



OPTIONAL EXTRAS - ENERGY SAVING 

Electronic Expansion 

Valves (EEV) 

(X & WX Models) 

OPTIONAL EXTRAS - GENERAL 

Low Noise Feature for 

Condenser Fan 

(X Models) 

Humidifier - Intelligent 

Modulation 

Electronic expansion valves differ to the normal thermostatic expansion valves in their 

ability to maintain control of the suction superheat at reduced head pressures. This can 

lead to significant energy savings particularly at reduced loading and low 

ambient temperatures. 

EEV step position, superheat setpoint, head pressure set point and other features can be 

viewed and adjusted via the microprocessor display. 

Factory fitted, for full details refer to Design Features & Information section, Electronic 

Expansion Valves. 

Specifically designed for night time operation as optimum low noise levels are achieved 

with reduced ambient temperature and room loads, this feature is also ideal for residential 

and other outdoor noise critical applications. 

Initiated by setting the microprocessor programmable time clock, the head pressure set 

point changes from the standard 14 barg (203 psig) (TEV) or 17 barg (247 psig) (optional 

EEV) to 22 barg (319 psig), reducing the outdoor unit fan speed and corresponding 

operating sound levels. 

This feature is enabled by the inclusion of an optional clock card within 

the microprocessor. 

Humidification is provided by an electrode boiler. The sealed humidifier design ensures 

that only clean sterile steam is supplied to the conditioned area and corrosive salts and 

minerals are held in the disposable bottle. The steam is distributed through a sparge pipe 

fitted to the coil assembly. 

Featuring modulating capacity output control as standard, the system provides 

continuous modulation of steam output in response to a proportional control signal. The 

output control range is 20%-100% of the humidifier rated value and is designed to give an 

approximate steam output of +/- 3% at 25°C at the sensor, thus ensuring precise control 

of the conditioned space. 

The cylinder operating life time is automatically optimised via the integrated water 

conductivity sensor, which combined with the controls monitors and regulates 

the water refill cycle to reduce excessive salt deposits and the progressive wear of the 

cylinder. For further details, refer to Design Features & Information section, Humidification. 

All humidifier parameters and alarms are accessible and adjustable via the 

microprocessor display keypad unit, main features include: 

Supply water conductivity (S/cm) 

Actual steam output (kg/h) 

Required steam output (kg/h) 

Actual current rating (A) 

Required current rating (A) 

Status mode (Start Up, Running, Filling, Draining) 



9 

GENERAL

GENERAL 

10 

-DF 



Water Conductivity & 

Cylinder Type 

Heating Options 




Conductivity is a measure of the ability of water to pass an electric current, measured in 

micro Siemens / centimetre (S/cm). 3 different cylinders are available which correspond 

to the supply water conductivity. 

Matching the correct cylinder type with the conductivity of the supply water ensures 

optimum performance and increases the life span of the cylinder. 

1 Low Conductivity (Soft Water) 100 to 350 S/cm 

2 Standard Conductivity (Moderate/Hard Water) 350 to 750 S/cm 

3 High Conductivity (Very Hard Water) 750 to 1250 S/cm 

As standard the humidifier is fitted with the standard conductivity cylinder which covers 

the majority of water supplies. Where the water conductivity is known, please specify at 

order. For further details please contact Airedale. 

CAUTION The supply water pressure to the humidifier assembly must be between 1 - 8 barg. 

Electric Heating Multi-stage finned electric heating elements complete with auto and manual reset 

overheat cut-out protection. 

Electric Heating Thyristor 

Control 

Sizes 26 - 60 

Standard electric heating elements are phase balanced for increased efficiency. 

Offers precision control between 0 - 100% via the microprocessor. 

Or 

Low Pressure Hot Water A low pressure hot water coil constructed of refrigeration quality copper tube and 

mechanically bonded aluminium fins can be factory fitted. 

Filter Change Switch 

Sizes 26 - 60 

Frost protection is fitted to prevent freezing of the low pressure hot water coil assembly. 

Proportional heating control is provided by a factory fitted 3 port, raise/lower type, 

modulating valve. 

Access to the RHS of the unit is required to set up the regulating valve, refer to 

Installation Data - Positioning. 

A solid state filter differential pressure switch can be fitted to provide an alarm at the 

controller to indicate the need for filter maintenance. The microprocessor is 

upgraded to facilitate this feature and in doing so offers further improved alarm handling, 

refer to Controls - Upgraded Controller.




Larger Fan & Motor 

Assembly 

Condensate Pump 

For applications where higher static air pressures are required, a larger fan and motor 

assembly size can be fitted to replace the standard assembly. 

Refer to Mechanical Data for availability. 

Sizes 6 - 25 The condensate pump has a 3 litre reservoir with a capacity of 5 l/m at a head of 8m and 

is mounted in the unit base, for pump performance, refer to Condensate Pump (Optional 

Extra). 

Sizes 26 - 60 The condensate pump has a 6 litre reservoir with a capacity of 5 l/m at a head of 10.8m 

and is mounted in the unit base, for pump performance; refer to Condensate Pump 

(Optional Extra). 

Easy Access Doors For improved ease of access, hinged and lock type doors can be fitted. 

Plain Doors - No Display 

Keypad 

Open & Enclosed 

Floorstand 

Discharge Air 

Configuration 

Networking is a standard option of the AireTronix microprocessor, refer to 

Controls - Optional Extras section for full details. To reduce costs, the “slave” units can be 

supplied with plain doors (no display keypad), in all door types, please specify at order. 

Open or enclosed floorstands are available, complete with adjustable feet and floor tile 

lip. Enclosed floorstands incorporate an air turning vane. Height of the floorstand; please 

specify at order, refer to Installation Data - Minimum Unit Clearance. 

Standard configuration is forward air discharge. Reverse air discharge is available, 

please specify at order, refer to Positioning. 

Ceiling Duct Extension Straight and ‘L’ shaped duct extensions up to a height of 1350mm constructed and 

finished to match the unit are available. 

Services Side Access 

Gland Plate 

For extensions greater than 1350mm, please contact Airedale. 

Height; please specify at order. 

As standard services can be routed through the gland plate in the base of the units. A 

gland plate can be optionally located to the lower left hand side face of the unit, if 

required, refer to Dimensions. 

Water Detector 2 methods are available: 

1 A solid state (probe) sensor is supplied loose for remote mounting on site. 

2 Tape suitable for sensing water droplets is supplied loose for remote mounting on 

site. Standard tape length 10m. 

Precision Air Conditioning 11 


GENERAL

GENERAL 

12 

-DF 






Firestat Installed in the return air stream to shut down the unit in the event of an unusually high 

return air temperature. 

Smoke Detector Supplied loose for remote mounting to shut down the unit and activate the alarm upon 

sensing the presence of smoke. 

Chilled Water Bypass 

Balancing Valves 

2 Port Chilled Water 

Control Valve 

0-10 Volt DC Chilled 

Water Regulating Valve 

Threaded Connection 

(WX & CW Models) 

Phase Rotation 

Protection 

(X & WX Models) 

Bypass balancing valves can be fitted to aid commissioning and unit operation by 

creating the same pressure drop through the bypass as through the chilled water coil. 

For systems with variable speed pumps and water flow, a 2 port control valve can be 

fitted in place of the standard 3 port valve. 

Designed to optimise the regulation of water flow for special applications. A 0-10 volt DC 

chilled water regulating valve can be fitted in place of the standard raise/lower 

regulating valve. 

BSP brass male taper threaded connections can be factory fitted. 

A phase sequence relay is available for units containing 3 phase scroll compressors, to 

prevent possible damage by running the compressor in the wrong direction. 

Alternative Refrigerant For applications outside the EU, units can be supplied for use with R22, please specify 

at order. 

Export Packing Units can be supplied packed inside a case to provide additional protection during 

transportation, (not required for container delivery). 

Standard construction material is solid wood. 

Optionally, construction can be of pest treated manufactured board (Stirling Board). 

Please specify at order.


Dimensional Data 

DIMENSIONS 

DF6 - DF25 

Standard Airflow Configuration (mm) 

670 

670 

640 

15 

640 

15 

1940 

1940 

270 

270 

200 

200 

C 

6 - 10 13 - 17 22 - 25 

670 

D 

B 

A 

F 

G 

200 

15 

990 

B 

A 

200 

15 

B 

1310 

C D 

C D 

E 

D 

4 

A 

5 

B 

200 

15 

1 2 

H x W x D A B (6) C (7) D (7) E F (8) G (7) 

DF6 X/WX/CW mm 1940 x 670 x 670 640 270 216 (183) 238 (304) N/A 50 (157) 268 (268) 




DF15 X/WX/CW mm 1940 x 990 x 670 960 590 294 (N/A) 401 (N/A) N/A 50 (210) 347 (N/A) 

DF17 X/WX/CW mm 1940 x 990 x 670 960 590 294 (N/A) 401 (N/A) N/A 50 (210) 347 (N/A) 

DF22 X2/WX2/CW mm 1940 x 1310 x 670 1280 455 166 (166) 337 (337) 303 50 (186) 295 (295) 

DF25 X2/WX2/CW mm 1940 x 1310 x 670 1280 455 166 (N/A) 337 (N/A) 303 50 (186) 295 (N/A) 

(1) Standard Forward Airflow Direction. 

(2) Optional Reverse Airflow Direction. 

(3) Optional Gland Plate and Panel for side services access via the right side of unit. 

(4) Base Mains Cable Entry. 

(5) Standard Base Gland Plate Entry for Refrigeration/Water Services. 

(6) M6 fixing hole positions. 

(7) Figures in brackets represent position of Fan Discharge Aperture when Larger Fan Motor Option is fitted. 

(8) Figures in brackets represent optional reverse air discharge configuration. 

WEIGHTS 

DF6 - DF25 

Machine / 

Machine (1) 

Operating 

DF6X kg 185 DF6WX kg 200 / 202 DF6CW kg 155 






DF22X2 kg 304 DF22WX2 kg 341 / 344 DF22CW kg 252 


(1) Machine weight includes a refrigerant charge / Operating weight includes calculated water volume, refer to Mechanical Data. 



3 

Machine 

GENERAL

GENERAL 

14 

-DF 


750 

750 

DIMENSIONS 

DF26 - DF60 

Standard Airflow Configuration (mm) 

710 

20 

710 

20 

1940 

210 

330 

1940 

210 

330 

26 - - 31 

C 

1460 

D 

B B 

B 

A 

F 

G 

210 

20 

35 - - 45 

C 

1835 

D 

B B 

B 

A 



F 

G 

210 

20 


4 

C 

50 - - 60 

D 

2170 

E 

B B B 

B 

A 

D 

5 

F 

G 

210 

20 

3 

1 2 

H x W x D A B (6) C (7) D (7) E F (8) G (7) 

DF26 X/WX/CW mm 1940 x 1460 x 750 1420 347 540 379 N/A 91 (113) 546 






DF50 X2/WX2/CW mm 1940 x 2170 x 750 2130 438 206 401 543 76 (257) 345 

DF55 X2/WX2/CW mm 1940 x 2170 x 750 2130 438 206 401 543 76 (257) 345 

DF60 X2/WX2/CW mm 1940 x 2170 x 750 2130 438 206 401 543 76 (257) 345 

(1) Standard Forward Airflow Direction. 

(2) Optional Reverse Airflow Direction. 

(3) Optional Gland Plate and Panel for side services access via the right side of unit. 

(4) Base Mains Cable Entry. 

(5) Standard Base Gland Plate Entry for Refrigeration/Water Services. 

(6) M6 fixing hole positions. 

(7) Figures in brackets represent position of Fan Discharge Aperture when Larger Fan Motor Option is fitted. 

(8) Figures in brackets represent optional reverse air discharge configuration. 

WEIGHTS 

DF26 - DF60 

Machine / 

Machine (1) 

Operating 

Machine 










(1) Machine weight includes a refrigerant charge / Operating weight includes calculated water volume, refer to Mechanical Data.



POSITIONING Standard Return 

Minimum Unit Clearance 

(2) 

(1) 

A B C - Floorstand (4) D (5) 

DF6 - DF10 mm 670 610 Min 200 - Max 750 

Min 300 

DF13 - DF17 mm 990 610 (+ 50mm Feet 

Min 300 

DF25 - DF25 mm 1310 610 Adjustable +/- 20mm) 

Min 300 

DF26 - DF31 mm 1460 700 Min 300 - Max 800 

N/A 

DF35 - DF45 mm 1835 700 (+ 50mm Feet 

N/A 

DF50 - DF60 mm 2170 700 Adjustable +/- 20mm) 

N/A 

Minimum Ceiling Clearance (2) 

Forward Only Forward & 1 Side Forward & 2 Sides All Faces 

DF6 - DF10 mm 470 240 160 120 

DF13 - DF17 mm 550 330 240 170 

DF22 - DF25 mm 560 370 280 190 

DF26 - DF31 mm 620 410 310 210 

DF35 - DF45 mm 640 450 350 230 

DF50 - DF60 mm 640 480 380 240 

(1) Shown with optional open floor stand. 

(2) Minimum Ceiling Clearance, refer to table. 

(3) Shaded area indicates minimum service and maintenance requirements. 

(4) Dimension C denotes recommended minimum/maximum floorstand height, refer to Airedale for special applications. 

(5) Dimension D refers to units fitted with LPHW which require access to the RHS of the unit to set up the regulating valve. 

(6) SERVICES SIDE ACCESS GLAND PLATE, OPTIONAL POSITION; ensure appropriate clearance is available to the base of the RHS of the 

unit if this option is selected. 

(6) 



GENERAL

GENERAL 

16 

-DF 

Controls 




GENERAL As standard the units are supplied with an microprocessor controller 

connected to a 4x20 back-lit LCD display keypad. 

TEMPERATURE 

CONTROL 

The microprocessor controller can be linked together locally to provide 

run/standby operation. Windows based supervisor software is also available for local or 

remote networking. This modular approach provides great flexibility while at the same 

time reducing installation and maintenance costs. 

The display keypad features a simple array of keys to navigate through the in 

built menus. 

For enhanced alarm monitoring, an upgraded controller can be fitted, refer to Controls - 

Optional Extras. 

A temperature sensor is mounted in the return air with an option for a humidity sensor on 

full function units. 

The temperature sensor is a NTC type thermistor accurate up to +/- 0.25°C and the 

humidity sensor accurate to +/- 3% at 25°C at the sensor. 

The microprocessor senses the return air conditions and maintains the return 

air temperature and humidity conditions by controlling cooling, heating, humidification and 

dehumidification outputs accordingly. 

The microprocessor monitors and displays the following values: 

Return Air Temperature 

Return Air Humidity (Optional on Full Function units) 

Condensing Pressure (Optional on DX units only) 

Coil Temperature Sensor (Indoor) 

ALARM HANDLING A visual alarm will be generated under the following conditions: 

Return air temperature high limit 

Return air temperature low limit 

Return air humidity high limit (Optional on Full Function units) 

Return air humidity low limit (Optional on Full Function units) 

Frost protection low limit (LPHW option only) 

Airflow failure 

Compressor failure (Optional on DX units only) 

Low pressure trip (Optional on DX units only) 

Electric Heating Overheat cut-out 

Filter change alarm 

Manual override 

Common alarm 

Power fail reset 

Communications failure 

Humidifier alarm (Full Function units only) 

Maintenance - fan and compressor (once hours run limit exceeded)



User Friendly Display 

Keypad 

Controls 

The default screen shows the unit status and room condition (°C/RH %) without the need 

for interrogation and an easy to navigate menu structure for further interrogation 

and adjustment. 

The controller logs and allows viewing of the last 100 conditions recorded in descending 

chronological order through the keypad display 

Password Protection The control system integrity can be maintained by restricting access with a password 

PIN number. 

CAUTION 

IMPORTANT: To change the PIN number, please contact Airedale at time of order 

with the preferred 4 digit number. 

Remote On/Off Terminals for interlocking are provided to enable or disable the unit remotely. 

Fire Shut Down Terminals for interlocking are provided to shut down the unit in the event of fire. 

Compressor Anti-Cycle 

Control 

Programmed to provide automatic anti-cycling delays of up to 10 starts per hour with a 

minimum off time of 3 minutes. 

Compressor Rotation On tandem compressor units the controller is programmed to provide automatic 

compressor rotation to ensure equal compressor running times. In the event of a 

compressor fault on networked systems the controller is programmed to automatically 

select the next compressor in order of running hours. 

Compressor Hours Run 

Log & Reset 

Allows the user to monitor the running times of each compressor and reset 

after maintenance. 



GENERAL

GENERAL 

18 

-DF 


Evaporator Fan Hours 

Run Log & Reset 

Head Pressure Control 

and Condenser Fan 

Speed Controller 

Evaporator Fan Speed 

Controller 

Sizes 6 - 25 

Controls 




Allows the user to monitor the running times of the evaporator fans and reset 

after maintenance. 

Each refrigerant circuit (TEV or EEV) is fitted with condenser pressure transducers and a 

modulating condenser fan speed controller to allow the designed head pressure to be 

monitored and maintained under varying ambient conditions. Condenser fan speed 

control settings are input via the display keypad. 

Evaporator fan speed control is easily set via the display keypad and can be 

incrementally increased or decreased to meet on site airflow and external static 

pressure requirements. 

Filter Change Alarm Filter change is managed by the AireTronix software, and is based on fan(s) hours run 

with an alarm being generated when the pre-set run time limit has been exceeded. The 

set-point value can be adjusted to suit each application and is factory set to 2000 hours. 

LPHW Frost Protection 

(DX units with LPHW 

option) 

OPTIONAL EXTRAS 

Upgraded Controller 

Sizes 26 - 60 

The coil temperature sensor is mounted on the DX coil and has a fixed 3°C low limit 

setting to disable DX cooling. 

The microprocessor controller is upgraded when the Filter Change Switch 

option is selected, refer to Indoor Unit, Optional Extras - General, Filter Change Switch. 

However, the controller can also be upgraded to provide for applications requiring specific 

alarm handling such as; filter dirty, fire, flood, phase failure, critical / non critical alarms 

and the ability to disable heating and humidification. Please contact Airedale for details. 

Real Time Clock A real time clock card can be fitted to the microprocessor to provide date and 

time stamping on alarms. Occupied and unoccupied set points can also be configured for 

temperature, humidity and head pressure control settings. 

This option is enabled by the inclusion of a clock card within the microprocessor, supplied 

as standard with this option. 

Networking A Local Area Network ( ) can be used to connect upto 6 units to offer 

intercommunication and Duty/Standby control. This also allows the connection of 

computers, printers and modems on the same communications ring. For further details, 

please contact Airedale Controls. 

CAUTION 

When adding to an existing network, please consult Airedale to ensure strategy 

compatibility.



Controls 

Duty/Standby Operation The controller enables units to operate in run/standby mode, with up to 6 units networked 

together, without the need for additional hardware or controllers. Standby units can be 

configured to start when the run unit has a critical alarm and/or a high/low return air 

temperature alarm. 

Duty Rotation Networked units can be configured to duty rotate, providing equal hours run of fans 

and compressors. 

BMS Interface Card Enables Controlled units to be interfaced with most BMS, factory fitted, 

please contact Airedale. 

Plain Doors - No Display 

Keypad 

A wide range of protocols can be accommodated through the use of interface devices. 

Available as a standard option are: ModBus/Jbus, Carel and Trend. 

For interfaces such as SNMP, LonWorks, Metasys and BACnet, please contact Airedale. 

To reduce costs, the “slave” units can be supplied with plain doors (no display keypad), 

please specify at order. 



GENERAL

GENERAL 

Sound Data 

20 

-DF 

METHOD OF SOUND MEASUREMENT 

Measurement of Sound 

Data 




All sound data quoted has been measured in the third-octave band limited values, using 

a Real Time Analyser calibrated sound intensity meter in accordance with 

BS EN ISO9614 Part 1 : 1995. 

All Sound Power Levels quoted are calculated from measured sound intensity according 

BS EN ISO9614 Part 1 : 1995. 

Semi Hemispherical Sound Pressure Levels are calculated from sound power using the semi-hemispherical 

method where the noise source is in junction with 2 boundaries i.e. the floor and 1 wall. 

Free Field For comparison, the semi hemispherical figures can typically be reduced by 3dB to 

provide free field conditions. 

IMPORTANT 

The sound data quoted is based on the unit having a ducted return air and ducted 

(or underfloor) discharge air application. 

Case breakout sound data is therefore independent of the discharge air and return 

air sound data. 

For non-ducted return air applications, the overall case breakout sound levels may 

increase, due to the return air sound being predominant. 

Within the conditioned space, sound from in-room ducted discharge air grilles and 

other equipment will contribute to the overall sound level and should therefore be 

considered as part of sound calculations. 

Specialist acoustic advice is recommended for noise critical applications. 

(1) 

(2) 

(3) 

(1)Return Air 

(2)Case Breakout 

(3)Discharge Air 

(1) Return Air 

(2) Case Breakout 

(3) Discharge Air


Design Features & Information 

ELECTRONIC EXPANSION VALVES (EEV) 

Thermostatic 

Expansion Valves (TEV) 

Electronic Expansion 

Valves (EEV) 

Reduced Condensing 

Pressure 

Evaporating Pressure 

Whilst offering versatile control at the full design duty of the unit, standard TEVs do not 

automatically optimise themselves to all operating conditions. Therefore, if the 

refrigeration system is operating at 40% or 50% of full load, especially at a lower ambient 

temperature than that for which the valve was sized, the conventional TEV must have the 

design head pressure available to ensure good refrigerant control. Maintaining an 

artificially high condensing pressure is normal in conventional systems. 

Using an EEV allows for good refrigeration control whilst operating at part load and lower 

ambient conditions with a reduced condensing pressure. By fitting an EEV and adjusting 

the head pressure control setting an increase in the system EER (Energy Efficiency 

Ratio) of up to 30% can typically be seen. The Mollier diagram shown below helps to 

illustrate how this increase in efficiency is achieved. 

EEV’s differ to normal thermostatic expansion valves in their ability to maintain control of 

refrigerant flow and the suction superheat at reduced head pressures. The turn-down rate 

of a typical EEV is superior to that of it’s thermostatic equivalent, such that a reduced 

optimum condensing pressure can be maintained at low compressor load. However low 

the load is on the compressor, from zero to 100%, there will not be a problem with turn 

down, even down to 10% of the valves rated capacity. 

1 

Pressure (Bara) 

Key 

3 

Increase in 

Cooling Duty 

Bubble 

4 

2 

Enthalpy (kJ/kg) 

Dew 

1 

Reduction in 

Compressor 

Input Power 

1 Compression 

2 Condensation 

3 Expansion 

4 Evaporation 

Cooling Cycle @ 22°C ambient with a conventional TEV fitted. 

Cooling cycle @ 22°C ambient, demonstrating a typical EEV condensing 

temperature taking full advantage of lower ambient air temperatures (below 35°C). 



GENERAL

GENERAL 

22 

-DF 


CONDENSATE PUMP (OPTIONAL EXTRA) 




Performance The following graphs illustrate the TOTAL static (head) pressure available. The system 

horizontal pipe losses and vertical lift should be factored in when calculating the 

condensate pump performance. 

Sizes 6 - 25 

Sizes 26 - 60 

IMPORTANT 

Head (m) 

Head (m) 

12 

10 

8 

6 

4 

2 

0 

12 

10 

8 

6 

4 

2 

0 

5 7 9 11 13 15 

Pump Flow Rate (l/min) 

5 7 9 11 13 15 

Pump Flow Rate (l/min) 

Use only 10mm (3/8”) copper tube when connecting the discharge stub to the 

condensate pump. The discharge line from the pump should rise no more than 6 

meters vertically and no more than 8 metres in total length before being 

interrupted with a swan neck air break and tundish.



HUMIDIFICATION 

Control Principles In a humidifier with electrodes, steam is produced by passing a current between electrode 

plates to generate heat. The higher the current being passed between the electrodes, the 

greater the quantity of steam that is produced. 

To modulate the rate of steam production, this system varies the level of water within the 

cylinder, thereby increasing the immersion level of the electrodes and the current being 

passed between them. The more conducting area that is available to pass current 

between the electrodes, the larger the amount of steam that is produced. 

Modulated by the controller, the water level is varied so that the level of 

steam being produced ensures that the room humidity set-point is continually maintained 

within a tight tolerance. 

Optimised Lifetime The life span of the Airedale humidification system is optimised by the inclusion of a water 

conductivity sensor into the bottle feed. This sensor determines the conductivity level of 

the supply water and by using an algorithm embedded in the software, 

determines the frequency that the bottle should be drained. 

Example: 

(Optimised Lifetime with 

High Water Conductivity 

Supply) 

TANDEM 

COMPRESSORS 

As liquid water is boiled off into steam, mineral deposits are left in solution increasing the 

conductivity of the water. To counter this, the intelligent software increases the frequency 

of drain meaning that the replenishing supply water keeps the concentration of minerals 

diluted. By maintaining an acceptable mineral concentration, the bottle life span 

is maximised. 

Comprising of 2 scroll type compressors linked together by refrigerant pipework to one 

common circuit. 

Tandem compressors provide variable control of the system performance by activating 

individual compressors as required. Multiple steps of unloading allow external load 

demands to be met with greater precision, eliminating unnecessary temperature and 

humidity variations. Consequently, system efficiency and reliability are much improved by 

extending major component working hours. 



GENERAL

24 

-DF 

AIR COOLED (X) & W AT ER C OOL ED (W X) MOD ELS 

Performance Data - Air & Water Cooled Models 

COOLING DUTIES - X TYPE MODELS 

Standard Condenser Match 




Cooling Capacity (1) Ambient 

Air On °C DB 

25°C 30°C 35°C 40°C 

/%RH TC (kW) SC (kW) TC (kW) SC (kW) TC (kW) SC (kW) TC (kW) SC (kW) 

DF6X-EZ 

C11 

22 / 50 

24 / 45 

26 / 40 

6.6 

6.8 

7.0 

5.9 

6.5 

7.0 

6.1 

6.3 

6.4 

5.7 

6.3 

6.4 

6.1 

6.3 

6.4 

5.7 

6.3 

6.4 

5.9 

6.0 

6.2 

5.6 

6.0 

6.2 

DF8X-EZ 

C15 

22 / 50 

24 / 45 

26 / 40 

9.3 

9.5 

9.8 

8.1 

8.7 

9.4 

8.6 

8.9 

9.2 

7.7 

8.4 

9.1 

8.6 

8.9 

9.1 

7.7 

8.4 

9.1 

8.3 

8.5 

8.8 

7.6 

8.2 

8.8 

DF10X-EZ 

C15 

22 / 50 

24 / 45 

26 / 40 

10.5 

10.8 

11.2 

9.6 

10.4 

11.1 

9.9 

10.3 

10.7 

9.2 

10.0 

10.7 

9.8 

10.1 

10.5 

9.2 

9.9 

10.5 

9.4 

9.7 

10.1 

8.9 

9.6 

10.1 

DF13X-EZ 

C20 

22 / 50 

24 / 45 

26 / 40 

13.9 

14.3 

14.6 

11.6 

12.6 

13.9 

13.0 

13.4 

13.7 

11.2 

12.2 

13.6 

12.8 

13.2 

13.4 

11.1 

12.1 

13.4 

12.2 

12.6 

12.8 

10.9 

11.8 

12.8 

DF15X-EZ 

C25 

22 / 50 

24 / 45 

26 / 40 

16.7 

17.0 

17.4 

13.9 

15.0 

16.3 

15.7 

16.2 

16.6 

13.4 

14.7 

16.0 

15.3 

15.7 

16.0 

13.3 

14.5 

15.7 

14.5 

15.0 

15.4 

12.9 

14.2 

15.4 

DF17X-EZ 

C35 

22 / 50 

24 / 45 

26 / 40 

20.0 

20.5 

20.9 

17.4 

18.8 

20.3 

18.6 

19.2 

19.6 

16.7 

18.2 

19.6 

18.5 

19.0 

19.4 

16.6 

18.1 

19.4 

17.6 

18.1 

18.5 

16.2 

17.6 

18.5 

DF22X2-EZ 

C45 

22 / 50 

24 / 45 

26 / 40 

25.5 

26.6 

27.4 

20.5 

22.4 

24.2 

23.4 

24.7 

25.5 

19.6 

21.5 

23.3 

23.4 

24.7 

25.4 

19.6 

21.5 

23.3 

22.4 

23.6 

24.2 

19.2 

21.0 

22.8 

DF25X2-EZ 

C45 

22 / 50 

24 / 45 

26 / 40 

26.6 

27.4 

28.1 

22.4 

24.4 

26.6 

24.7 

25.5 

26.2 

21.5 

23.6 

25.7 

24.7 

25.4 

26.1 

21.5 

23.5 

25.6 

23.5 

24.3 

24.9 

20.9 

23.0 

24.9 

DF26X-EZ 

C45 

22 / 50 

24 / 45 

26 / 40 

28.0 

28.7 

29.3 

25.0 

27.0 

29.1 

26.0 

26.8 

27.4 

23.9 

26.0 

27.4 

25.8 

26.5 

27.1 

23.8 

25.8 

27.1 

24.5 

25.2 

25.7 

23.1 

25.1 

25.7 

DF28X-EZ 

C45 

22 / 50 

24 / 45 

26 / 40 

28.7 

29.4 

29.2 

26.7 

29.0 

29.2 

26.7 

27.4 

27.4 

25.6 

27.4 

27.4 

26.4 

27.1 

27.1 

25.5 

27.1 

27.1 

25.0 

25.7 

26.1 

24.8 

25.7 

26.1 

DF31X-EZ 

C45 

22 / 50 

24 / 45 

26 / 40 

31.9 

32.9 

33.4 

30.4 

32.9 

33.4 

30.2 

31.1 

31.8 

29.4 

31.1 

31.8 

29.5 

30.3 

30.9 

29.0 

30.3 

30.9 

27.9 

28.7 

29.3 

27.9 

28.7 

29.3 

DF35X-EZ 

CS50 

22 / 50 

24 / 45 

26 / 40 

38.1 

39.1 

40.0 

36.1 

39.1 

40.0 

36.1 

37.1 

38.0 

34.9 

37.1 

38.0 

35.2 

36.3 

37.0 

34.4 

36.3 

37.0 

33.6 

34.6 

35.3 

33.6 

34.6 

35.3 

DF40X-EZ 

CS50 

22 / 50 

24 / 45 

26 / 40 

41.6 

43.4 

44.3 

40.0 

43.4 

44.3 

39.7 

41.7 

42.7 

38.9 

41.7 

42.7 

38.5 

40.4 

41.4 

38.3 

40.4 

41.4 

37.1 

38.8 

39.8 

37.1 

38.8 

39.8 

DF45X-EZ 

CS50 

22 / 50 

24 / 45 

26 / 40 

46.2 

47.4 

48.4 

42.4 

45.8 

48.4 

44.5 

45.6 

46.6 

41.5 

44.9 

46.6 

42.6 

43.8 

44.7 

40.5 

43.8 

44.7 

40.7 

41.8 

42.7 

39.4 

41.8 

42.7 

DF50X2-EZ 

CS65 

22 / 50 

24 / 45 

26 / 40 

54.6 

54.6 

57.1 

49.1 

52.8 

57.1 

51.9 

51.8 

54.6 

47.7 

51.3 

54.6 

50.6 

50.5 

52.9 

46.9 

50.5 

52.9 

48.4 

48.6 

50.8 

45.6 

48.6 

50.8 

DF55X2-EZ 

CS80 

22 / 50 

24 / 45 

26 / 40 

60.8 

62.3 

63.8 

52.5 

56.5 

60.8 

57.4 

59.0 

60.4 

50.8 

54.8 

59.1 

56.3 

57.8 

59.1 

50.2 

54.2 

58.4 

54.0 

55.4 

56.7 

48.9 

53.0 

56.7 

DF60X2-EZ 

CS80 

22 / 50 

24 / 45 

26 / 40 

64.4 

65.9 

68.6 

56.2 

60.7 

66.2 

61.0 

62.6 

66.0 

54.5 

59.0 

64.9 

59.5 

61.1 

64.4 

53.7 

58.1 

64.0 

57.0 

58.4 

62.2 

52.3 

56.8 

62.2 

AIR & WATER COOLED 

TC = Total Cooling SC = Sensible Cooling 

(1) All data quoted is gross. 

(2) Deduct fan motor gain for nett duties, refer to Mechanical Data in this section. 

OPERATING LIMITS - X TYPE MODELS 

Cooling 

Indoor Air Temperature +18°C to +28°C 

Indoor RH% +40% to +55% 

Outdoor Temperature -30°C to +48°C 

(1) For conditions outside those quoted, please contact Airedale.



COOLING DUTIES - X TYPE MODELS 

Upgraded Condenser Match 

Cooling Capacity (1) Ambient 

Air On °C DB 25°C 30°C 35°C 40°C 45°C 

/%RH TC (kW) SC (kW) TC (kW) SC (kW) TC (kW) SC (kW) TC (kW) SC (kW) TC (kW) SC (kW) 

DF6X-EZ 

C15 

22 / 50 

24 / 45 

26 / 40 

6.8 

7.0 

7.1 

6.0 

6.6 

7.1 

6.1 

6.3 

6.4 

5.7 

6.3 

6.4 

6.1 

6.3 

6.4 

5.7 

6.3 

6.4 

6.0 

6.2 

6.3 

5.7 

6.2 

6.3 

5.7 

5.9 

6.0 

5.6 

5.9 

6.0 

DF8X-EZ 

C20 

22 / 50 

24 / 45 

26 / 40 

9.4 

9.7 

9.9 

8.1 

8.8 

9.5 

8.6 

8.9 

9.2 

7.7 

8.4 

9.1 

8.6 

8.9 

9.2 

7.7 

8.4 

9.1 

8.4 

8.7 

8.9 

7.6 

8.3 

8.9 

8.1 

8.3 

8.6 

7.5 

8.1 

8.6 

DF10X-EZ 

C20 

22 / 50 

24 / 45 

26 / 40 

10.7 

11.0 

11.3 

9.7 

10.5 

11.2 

9.9 

10.3 

10.7 

9.2 

10.0 

10.7 

9.9 

10.3 

10.7 

9.2 

10.0 

10.7 

9.6 

9.9 

10.3 

9.1 

9.8 

10.3 

9.2 

9.6 

10.0 

8.8 

9.5 

10.0 

DF13X-EZ 

C25 

22 / 50 

24 / 45 

26 / 40 

14.1 

14.5 

14.8 

11.7 

12.7 

14.0 

13.0 

13.4 

13.7 

11.2 

12.2 

13.6 

13.0 

13.3 

13.6 

11.2 

12.2 

13.6 

12.4 

12.7 

13.0 

10.9 

11.9 

13.0 

11.7 

12.1 

12.3 

10.6 

11.6 

12.3 

DF15X-EZ 

C35 

22 / 50 

24 / 45 

26 / 40 

17.2 

17.7 

18.0 

14.1 

15.3 

16.6 

15.7 

16.2 

16.6 

13.4 

14.7 

16.0 

15.7 

16.2 

16.6 

13.4 

14.7 

16.0 

15.1 

15.5 

15.9 

13.2 

14.4 

15.7 

14.3 

15.0 

15.2 

12.9 

14.2 

15.2 

DF17X-EZ 

C45 

22 / 50 

24 / 45 

26 / 40 

20.5 

21.0 

21.4 

17.6 

19.1 

20.6 

18.6 

19.2 

19.6 

16.7 

18.2 

19.6 

18.6 

19.2 

19.6 

16.7 

18.2 

19.6 

18.2 

18.7 

19.1 

16.5 

17.9 

19.1 

17.3 

17.7 

18.2 

16.0 

17.5 

18.2 

DF22X2-EZ 

CS50 

22 / 50 

24 / 45 

26 / 40 

25.6 

26.8 

27.6 

20.6 

22.5 

24.3 

23.4 

24.7 

25.5 

19.6 

21.5 

23.3 

23.4 

24.7 

25.5 

19.6 

21.5 

23.3 

22.7 

23.9 

24.6 

19.3 

21.2 

22.9 

21.8 

22.9 

23.5 

18.9 

20.7 

22.5 

DF25X2-EZ 

CS50 

22 / 50 

24 / 45 

26 / 40 

26.8 

27.6 

28.3 

22.5 

24.5 

26.7 

24.7 

25.5 

26.2 

21.5 

23.6 

25.7 

24.7 

25.5 

26.2 

21.5 

23.6 

25.7 

23.8 

24.6 

25.3 

21.1 

23.1 

25.2 

22.8 

23.6 

24.2 

20.6 

22.7 

24.2 

DF26X-EZ 

CS50 

22 / 50 

24 / 45 

26 / 40 

28.2 

29.0 

29.6 

25.1 

27.1 

29.3 

26.0 

26.8 

27.4 

23.9 

26.0 

27.4 

26.0 

26.8 

27.4 

23.9 

26.0 

27.4 

25.0 

25.7 

26.3 

23.4 

25.4 

26.3 

23.8 

24.5 

25.1 

22.8 

24.5 

25.1 

DF28X-EZ 

CS50 

22 / 50 

24 / 45 

26 / 40 

28.9 

29.7 

29.6 

26.9 

29.1 

29.6 

26.7 

27.4 

27.4 

25.6 

27.4 

27.4 

26.7 

27.4 

27.4 

25.6 

27.4 

27.4 

25.5 

26.3 

26.5 

25.0 

26.3 

26.5 

24.3 

25.0 

25.7 

24.3 

25.0 

25.7 

DF31X-EZ 

CS50 

22 / 50 

24 / 45 

26 / 40 

32.3 

33.3 

33.8 

30.6 

33.1 

33.8 

30.2 

31.1 

31.8 

29.4 

31.1 

31.8 

29.9 

30.8 

31.5 

29.3 

30.8 

31.5 

28.6 

29.5 

30.2 

28.5 

29.5 

30.2 

27.3 

28.1 

28.8 

27.3 

28.1 

28.8 

DF35X-EZ 

CS65 

22 / 50 

24 / 45 

26 / 40 

39.0 

40.1 

41.0 

36.6 

39.7 

41.0 

36.0 

37.1 

38.0 

34.9 

37.1 

38.0 

36.0 

37.1 

38.0 

34.9 

37.1 

38.0 

34.6 

35.7 

36.4 

34.1 

35.7 

36.4 

33.0 

34.0 

34.8 

33.0 

34.0 

34.8 

DF40X-EZ 

CS65 

22 / 50 

24 / 45 

26 / 40 

42.7 

44.3 

45.3 

40.6 

44.3 

45.3 

39.7 

41.7 

42.8 

38.9 

41.7 

42.8 

39.5 

41.5 

42.5 

38.9 

41.5 

42.5 

38.1 

40.0 

41.0 

38.1 

40.0 

41.0 

36.7 

38.3 

39.3 

36.7 

38.3 

39.3 

DF45X-EZ 

CS65 

22 / 50 

24 / 45 

26 / 40 

47.5 

48.7 

49.7 

43.1 

46.5 

49.7 

44.6 

45.9 

46.9 

41.6 

45.1 

46.9 

44.1 

45.2 

46.2 

41.3 

44.7 

46.2 

42.2 

43.3 

44.3 

40.3 

43.3 

44.3 

40.3 

41.3 

42.3 

39.3 

41.3 

42.3 

DF50X2-EZ 

CS80 

22 / 50 

24 / 45 

26 / 40 

55.3 

55.5 

57.8 

49.5 

53.3 

57.5 

52.0 

51.9 

54.6 

47.6 

51.3 

54.6 

51.5 

51.4 

53.9 

47.4 

51.0 

53.9 

49.4 

49.5 

51.8 

46.2 

49.5 

51.8 

47.2 

47.6 

49.6 

45.0 

47.6 

49.6 

DF55X2-EZ 

CS105 

22 / 50 

24 / 45 

26 / 40 

62.0 

63.7 

65.1 

53.3 

57.2 

61.5 

57.4 

59.0 

60.4 

50.7 

54.8 

59.1 

57.4 

59.0 

60.4 

50.7 

54.8 

59.1 

55.4 

56.9 

58.2 

49.7 

53.7 

57.9 

52.9 

54.4 

55.6 

48.4 

52.5 

55.6 

DF60X2-EZ 

CS105 

22 / 50 

24 / 45 

26 / 40 

65.8 

67.4 

69.9 

57.0 

61.4 

66.9 

61.0 

62.7 

66.0 

54.5 

59.0 

64.8 

61.0 

62.7 

65.8 

54.5 

59.0 

64.7 

58.6 

60.1 

63.7 

53.2 

57.7 

63.6 

55.9 

57.4 

61.5 

51.8 

56.3 

61.5 






AIR & WATER COOLED


26 

-DF 


COOLING DUTIES - WX TYPE MODELS 




Cooling Capacity (1) Condenser Entering / Leaving Temperature - Based on ΔT of 5°C 

25°C /30°C 30°C /35°C 35°C/40°C 40°C/45°C 

Air On °C DB TC SC THR TC SC THR TC SC THR TC SC THR 

/%RH (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) 

22 / 50 6.7 6.0 8.9 6.5 5.9 8.5 6.2 5.7 8.2 5.9 5.6 7.9 

DF6WX-EZ 

24 / 45 6.9 6.6 9.0 6.6 6.4 8.7 6.4 6.3 8.4 6.1 6.1 8.1 

26 / 40 7.1 7.1 9.2 6.8 6.8 8.9 6.5 6.5 8.5 6.2 6.2 8.2 

22 / 50 9.4 8.1 11.6 9.1 8.0 11.5 8.7 7.8 11.3 8.4 7.6 11.2 

DF8WX-EZ 

24 / 45 9.7 8.8 11.9 9.4 8.6 11.8 9.0 8.5 11.6 8.7 8.3 11.5 

26 / 40 10.0 9.5 12.2 9.6 9.4 12.0 9.3 9.2 11.9 8.9 8.9 11.7 

22 / 50 10.8 9.7 13.0 10.4 9.5 13.0 10.0 9.3 12.9 9.6 9.1 12.8 

DF10WX-EZ 

24 / 45 11.1 10.5 13.4 10.7 10.3 13.3 10.4 10.1 13.3 10.0 9.8 13.2 

26 / 40 11.4 11.3 13.7 11.1 11.0 13.7 10.8 10.8 13.6 10.4 10.4 13.6 

22 / 50 14.3 11.7 16.7 13.7 11.5 16.6 13.2 11.2 16.5 12.5 11.0 16.4 

DF13WX-EZ 

24 / 45 14.7 12.8 17.1 14.1 12.6 17.0 13.5 12.3 16.9 12.9 12.0 16.7 

26 / 40 15.0 14.1 17.4 14.4 13.9 17.3 13.8 13.7 17.2 13.2 13.2 17.0 

22 / 50 17.4 14.2 19.7 16.7 13.8 19.7 16.0 13.6 19.8 15.3 13.2 19.8 

DF15WX-EZ 

24 / 45 17.9 15.4 20.2 17.0 15.0 20.2 16.5 14.8 20.2 15.7 14.5 20.2 

26 / 40 18.3 16.7 20.6 17.4 16.3 20.6 16.9 16.1 20.6 16.1 15.8 20.6 

22 / 50 20.4 17.6 22.9 19.6 17.2 23.2 19.0 16.9 23.5 18.1 16.4 23.9 

DF17WX-EZ 

24 / 45 20.9 19.0 23.4 20.2 18.7 23.8 19.5 18.3 24.1 18.6 17.9 24.5 

26 / 40 21.4 20.6 23.9 20.6 20.2 24.2 19.9 19.8 24.6 19.1 19.1 24.9 

22 / 50 25.8 20.6 28.5 24.6 20.1 29.0 23.6 19.7 29.5 22.5 19.2 30.0 

DF22WX2-EZ 

24 / 45 27.0 22.6 29.8 25.9 22.1 30.3 24.9 21.6 30.7 23.8 21.1 31.2 

26 / 40 27.8 24.4 30.6 26.7 23.9 31.0 25.7 23.4 31.5 24.5 22.9 31.9 

22 / 50 27.0 22.6 29.8 25.9 22.0 30.2 24.9 21.6 30.6 23.7 21.0 31.1 

DF25WX2-EZ 

24 / 45 27.8 24.6 30.6 26.7 24.1 31.1 25.7 23.7 31.5 24.5 23.1 32.0 

26 / 40 28.6 26.9 31.4 27.5 26.3 31.9 26.5 25.8 32.2 25.2 25.1 32.7 

22 / 50 28.3 25.2 31.3 27.3 24.6 31.9 26.3 24.1 32.6 25.1 23.5 33.2 

DF26WX-EZ 

24 / 45 29.1 27.2 32.1 28.1 26.6 32.7 27.0 26.1 33.3 25.8 25.5 34.0 

26 / 40 29.8 29.3 32.8 28.7 28.7 33.4 27.6 27.6 34.0 26.5 26.5 34.7 

22 / 50 29.0 26.9 32.0 28.0 26.4 32.6 26.9 25.8 33.2 25.7 25.1 33.9 

DF28WX-EZ 

24 / 45 29.8 29.2 32.9 28.8 28.6 33.4 27.7 27.7 34.0 26.5 26.5 34.6 

26 / 40 29.7 29.7 32.8 28.6 28.6 33.6 27.5 27.5 34.3 26.6 26.6 35.1 

22 / 50 32.6 30.8 35.8 31.5 30.2 36.7 30.3 29.5 37.6 29.0 28.8 38.5 

DF31WX-EZ 

24 / 45 33.6 33.3 36.8 32.5 32.5 37.7 31.3 31.3 38.6 30.0 30.0 39.4 

26 / 40 34.2 34.2 37.5 33.1 33.1 38.4 31.9 31.9 39.2 30.6 30.6 40.2 

22 / 50 38.9 36.5 42.5 37.5 35.7 43.6 36.0 34.9 44.7 34.4 34.0 45.8 

DF35WX-EZ 

24 / 45 40.0 39.6 43.7 38.6 38.6 44.8 37.1 37.1 45.9 35.5 35.5 47.0 

26 / 40 40.9 40.9 44.6 39.5 39.5 45.7 38.0 38.0 46.7 36.3 36.3 47.8 

22 / 50 42.7 40.6 46.8 41.1 39.8 48.0 39.6 38.9 49.4 38.1 38.1 50.7 

DF40WX-EZ 

24 / 45 44.4 44.4 48.4 43.1 43.1 49.8 41.6 41.6 51.2 40.0 40.0 52.7 

26 / 40 45.4 45.4 49.4 44.1 44.1 50.8 42.7 42.7 52.3 41.1 41.1 53.8 

22 / 50 48.1 43.4 51.8 46.5 42.6 53.4 44.9 41.7 55.0 43.1 40.7 56.7 

DF45WX-EZ 

24 / 45 49.4 46.9 53.2 47.8 46.1 54.7 46.1 45.2 56.4 44.3 44.2 57.9 

26 / 40 50.4 50.4 54.3 48.9 48.9 55.8 47.1 47.1 57.4 45.3 45.3 59.0 

22 / 50 55.7 49.7 60.0 54.0 48.8 61.9 52.0 47.7 63.9 50.0 46.6 65.8 

DF50WX2-EZ 

24 / 45 56.0 53.6 60.5 54.0 52.5 62.3 51.9 51.3 64.2 50.0 50.0 66.0 

26 / 40 58.4 57.8 62.8 56.6 56.6 64.7 54.6 54.6 66.6 52.6 52.6 68.5 

22 / 50 61.6 53.0 66.4 59.6 51.9 68.4 57.3 50.7 70.5 54.9 49.4 72.6 

DF55WX2-EZ 

24 / 45 63.3 57.0 68.2 61.2 55.9 70.1 58.9 54.7 72.2 56.5 53.5 74.2 

26 / 40 64.8 61.3 69.7 62.6 60.2 71.6 60.2 59.0 73.6 57.8 57.8 75.6 

22 / 50 65.5 56.9 70.6 63.3 55.7 72.7 60.8 54.4 74.9 58.3 53.0 77.1 

DF60WX2-EZ 

24 / 45 67.1 61.3 72.3 64.9 60.1 74.4 62.4 58.8 76.6 59.9 57.5 78.7 

26 / 40 69.8 66.8 75.2 67.8 65.8 77.7 65.7 64.7 80.2 63.6 63.6 82.8 

TC = Total Cooling SC = Sensible Cooling THR = Total Heat of Rejection 



(3) Interpolate for water temperatures between those quoted, do not extrapolate. 

(4) Water flow rate (l/s) = THR ÷ (4.19 x T) at 100% Water. For glycol use, refer to Ethylene Glycol Correction Factors in this section. 

OPERATING LIMITS - WX TYPE MODELS 

Cooling 



Condenser Minimum Entering Temperature °C +25°C 

Condenser Maximum Leaving Water Temperature °C +45°C 

(1) Conditions quoted at 100% Water. 

(2) For conditions outside those quoted, please refer to Airedale.


General Specification - Air & Water Cooled Models 

MECHANICAL DATA 

DF6X-EZ DF8X-EZ DF10X-EZ DF13X-EZ 

DF6WX-EZ DF8WX-EZ DF10WX-EZ DF13WX-EZ 

Standard Matched Condenser - X 

Capacity 

C11 C15 C15 C20 

Nom Cooling (Gross) - X (1) kW 6.3 8.9 10.1 13.2 

Nom Cooling (Gross) - WX (2) kW 6.3 8.9 10.3 13.4 

Total Heat of Rejection - WX (2) kW 8.1 11.7 13.5 17.4 

Capacity Steps 1 1 1 1 

Fan Gain kW 0.33 0.60 0.65 0.65 

Dimensions - H x W x D mm 1940 x 670 x 670 1940 x 670 x 670 1940 x 670 x 670 1940 x 990 x 670 

Weight - Machine - X kg 185 196 200 222 

Weight - Machine / Operating - WX (3) kg 200 / 202 214 / 216 218 / 220 243 / 244 

Construction Panels: Galvanised Sheet Steel, Epoxy Baked Powder Paint - Light Grey, (RAL 7035) 

Material/Colour 

Frame: Anodised Aluminium Frame with Black Nylon Corners 

Evaporator Rifled Copper Tube/Turbulated Hydrophilic Coated Aluminium Fins 

Cooling/Dehum Stages 1/1 1/1 1/1 1/1 

Condenser - WX Stainless Steel Brazed Plate 

Water Volume l 1.1 1.4 1.4 1.4 

Fan & Motor Centrifugal Direct Drive- Designed to 25Pa ESP 

Quantity / Motor Size kW 1 x 0.30 1 x 0.55 1 x 0.60 1 x 0.60 

Maximum ESP Pa 196 140 118 294 

Nominal Airflow m³/s 0.55 0.75 0.95 1.00 

Compressor - Scroll Single 

Quantity 1 1 1 1 

Oil Charge Volume (Total) l 1.00 1.10 1.10 1.36 

Oil Type Polyol Ester 

Refrigeration Single Circuit 

Refrigeration Control Thermostatic Expansion Valve (Optional EEV) 

Refrigeration Type (4) R407C 

Holding Charge - X Inert Gas 

Charge (Total) - WX 

Connections 

kg 2.4 2.5 2.5 3.7 

Liquid (Sweat) - X in 3/8 3/8 3/8 1/2 

Discharge (Sweat) - X in 5/8 5/8 5/8 3/4 

Water Inlet / Outlet - WX mm 22 22 22 22 

Condensate Drain Hose mm 19 19 19 19 

Filtration Disposable to BS EN 779 - G4 - 50mm 

Quantity 


Upgraded Condenser Match - X 

1 1 1 2 

Nom Cooling (Gross) (1) kW 6.3 8.9 10.3 13.3 

Electric Heating (Total) 

Humidifier 

kW 7.5 7.5 7.5 7.5 

Capacity kg/hr 0.6 - 3.0 0.6 - 3.0 0.6 - 3.0 0.6 - 3.0 

Feed/Drain 


3/4” BSPF Braided flexible hose / 19mm hose connection 

Head m 8 8 8 8 

Flow l/m 5 5 5 5 

Drain 10mm S/Steel Stub Connection 

Larger / Next Larger Fan Motor Size 

Quantity / Motor Size kW 1 x 0.55 / N/A 1 x 0.60 / N/A N/A / N/A N/A / N/A 

Maximum ESP Pa 254 / N/A 253 / N/A N/A / N/A N/A / N/A 

Fan Gain rpm 0.60 / N/A 0.65 / N/A N/A / N/A N/A / N/A 

Low Pressure Hot Water Copper Tube/Aluminium Fin 

Capacity Gross (5) kW 6.50 7.50 8.40 11.50 

Water Flow (Nominal) l/s 0.14 0.17 0.19 0.26 

LPHW Connection Sizes 

Threaded Connection - WX 

mm 22 22 22 22 

Brass Male Taper in 3/4 3/4 3/4 3/4 

(1) Entering air 24°C/45% RH ambient 35°C. 

(2) Entering air 24°C/45% RH condensing water in / out: 30°C /35°C. 

(3) Machine weight includes a refrigerant charge / Operating weight includes calculated water volume. 

(4) For refrigerant charges, refer to the Refrigerant Charging Guide - X Type Models table in this section. 

(5) Based upon low pressure hot water 82°C inlet/71°C outlet. Air on 20°C. Refer to the Low Pressure Hot Water (Optional Extra) - X & WX Type 

Models in this section. 



AIR & WATER COOLED


28 

-DF 






DF15X-EZ DF17X-EZ DF22X2-EZ DF25X2-EZ 

DF15WX-EZ DF17WX-EZ DF22WX2-EZ DF25WX2-EZ 


Capacity 

C25 C35 C45 C45 





Fan Gain kW 1.20 1.20 1.31 1.31 



Weight - Machine / Operating - WX (3) kg 262 / 264 268 / 270 341 / 344 341 / 344 







Water Volume l 2.0 2.5 2.5 2.5 

Fan & Motor Centrifugal Direct Drive- Designed to 25Pa ESP 


Maximum ESP Pa 120 34 194 43 


Compressor - Scroll Single Tandem 









Connections 

kg 4.1 4.1 5.1 5.1 






Quantity 



2 2 3 3 



Humidifier 

kW 7.5 7.5 15.0 15.0 

Capacity kg/hr 0.6 - 3.0 0.6 - 3.0 0.6 - 3.0 0.6 - 3.0 

Feed/Drain 



Head m 8 8 8 8 

Flow l/m 5 5 5 5 



Quantity / Motor Size kW N/A / N/A N/A / N/A N/A / N/A N/A / N/A 

Maximum ESP Pa N/A / N/A N/A / N/A N/A / N/A N/A / N/A 

Fan Gain rpm N/A / N/A N/A / N/A N/A / N/A N/A / N/A 






mm 22 22 22 22 

Brass Male Taper in 3/4 1 1 1 






Models in this section.







Capacity 

C45 C45 C45 CS50 





Fan Gain kW 0.98 1.43 2.60 2.60 



Weight - Machine / Operating- WX (3) kg 503 / 509 503 / 509 510 / 516 555 / 561 







Water Volume l 6.1 6.1 6.1 6.1 

Fan & Motor Centrifugal Belt & Pulley- Designed to 25Pa ESP 


Speed @ 25Pa / Maximum ESP rpm 775 / 801 871 / 909 1008 /1171 980 /1078 



Compressor - Scroll Single 









Connections 

kg 7.2 7.2 7.2 8.9 






Quantity 



3 3 3 3 



Humidifier 

kW 20 20 20 20 

Capacity kg/hr 1.6 - 8.0 1.6 - 8.0 1.6 - 8.0 3.0 - 15.0 

Feed/Drain 



Head m 10.8 10.8 10.8 10.8 

Flow l/m 5 5 5 5 



Quantity / Motor Size kW 1 x 2.2 / 1 x 3.0 1 x 3.0 / 1 x 4.0 N/A / N/A 1 x 5.5 / N/A 

Maximum ESP Pa 345 / 665 362 / 722 N/A / N/A 322 / N/A 

Speed @ Maximum ESP rpm 1057 / 1350 1144 / 1439 N/A / N/A 1196 / N/A 

Fan Gain kW 1.43 / 1.95 1.95 / 2.60 N/A / N/A 3.58 / N/A 






mm 22 22 22 22 

Brass Male Taper in 1 1/4 1 1/4 1 1/4 1 1/4 









AIR & WATER COOLED


30 

-DF 






DF40X-EZ DF45X-EZ DF50X2-EZ DF55X2-EZ DF60X2-EZ 

DF40WX-EZ DF45WX-EZ DF50WX2-EZ DF55WX2-EZ DF60WX2-EZ 


Capacity 

CS50 C50 CS65 CS80 CS80 

Nom Cooling (Gross) - X (1) kW 40.6 43.9 50 57.4 60.7 

Nom Cooling (Gross) - WX (2) kW 41.7 45.9 51.2 59.0 62.7 

Total Heat of Rejection - WX (2) kW 54.9 60.9 51.9 77.6 82.3 

Capacity Steps 1 1 2 2 2 

Fan Gain kW 3.58 3.58 2.86 2.86 3.90 

Dimensions - H x W x D mm 1940 x 1835 x 1940 x 1835 x 1940 x 2170 x 1940 x 2170 x 1940 x 2170 x 

750 

750 

750 

750 

750 

Weight - Machine - X kg 522 550 665 678 674 

Weight - Machine / Operating - WX (3) kg 581 / 587 628 / 638 747 / 756 761 / 771 757 / 767 





Cooling/Dehum Stages 1/1 1/1 2/2 2/2 2/2 


Water Volume l 6.1 9.9 9.9 9.9 9.9 

Fan & Motor Centrifugal Belt & Pulley- Designed to 25Pa ESP 

Quantity / Motor Size kW 1 x 5.5 1 x 5.5 2 x 2.2 2 x 2.2 2 x 3.0 

Speed @ 25Pa / Maximum ESP rpm 1094 / 1186 1094 / 1186 1167 / 1170 1167 / 1170 1307 / 1311 

Maximum ESP Pa 175 175 35 35 75 

Nominal Airflow m³/s 3.7 3.7 4.2 4.2 4.6 

Compressor - Scroll Single Tandem 

Quantity 1 1 2 2 2 

Oil Charge Volume (Total) l 3.30 6.20 6.50 7.60 7.60 







Connections 

kg 8.9 11.7 11.6 13.3 13.3 

Liquid (Sweat) - X in 7/8 7/8 7/8 7/8 7/8 

Discharge (Sweat) - X in 1 1/8 1 1/8 1 3/8 1 3/8 1 3/8 

Water Inlet / Outlet - WX mm 35 42 42 42 42 

Condensate Drain Hose mm 19 19 19 19 19 


Quantity 



3 3 4 4 4 

Nom Cooling (Gross) (1) kW 41.2 44.8 51.2 58.5 61.8 


Humidifier 

kW 20 20 30 30 30 

Capacity kg/hr 3.0 - 15.0 3.0 - 15.0 3.0 - 15.0 3.0 - 15.0 3.0 - 15.0 

Feed/Drain 



Head m 10.8 10.8 10.8 10.8 10.8 

Flow l/m 5 5 5 5 5 



Quantity / Motor Size kW N/A / N/A N/A / N/A 2 x 3.0 / 2 x 4.0 2 x 3.0 / 2 x 4.0 2 x 4.0 / N/A 

Maximum ESP Pa N/A / N/A N/A / N/A 310 / 360 310 / 360 275 / N/A 

Speed @ Maximum ESP rpm N/A / N/A N/A / N/A 1448 / 1498 1448 / 1498 1497 / N/A 

Fan Gain kW N/A / N/A N/A / N/A 3.90 / 5.20 3.90 / 5.20 5.20 / N/A 


Capacity Gross (5) kW 31.50 31.50 38.30 38.30 39.80 

Water Flow (Nominal) l/s 0.70 0.70 0.85 0.85 0.89 



mm 22 22 22 22 22 

Brass Male Taper in 1 1/4 1 1/2 1 1/2 1 1/2 1 1/2 









ELECTRICAL DATA 



Standard Matched Condensers - X C11 C15 C15 C20 

Unit Data - X (1) 

Nominal Run Amps A 17.90 22.40 25.70 26.70 

Maximum Start Amps A 38.40 57.70 66.20 70.20 

Recommended Mains Fuse Size A 25 32 32 32 

Max Mains Incoming Cable Size mm² 6 6 6 6 

Mains Supply V 400V / 3PH + N / 50Hz 

Control circuit VAC 24 24 24 24 

Unit Data - WX (1) 







Evaporator Fan - Per Fan 

Quantity/Motor Size kW 1 x 0.30 1 x 0.55 1 x 0.60 1 x 0.60 

Full Load Amps A 3.50 6.80 7.70 7.70 

Locked Rotor Amps A 8.75 17.00 20.50 20.50 

Compressor - Per Compressor 




Motor Size kW 2.0 2.6 3.9 4.7 

Type of Start Direct On Line 

Matched Outdoor Condenser - Per Fan 




Electric Heating 

Stage of Reheat 1 1 1 1 

Number of Elements 3 3 3 3 

Rating (Total) kW 7.5 7.5 7.5 7.5 

Current Per Phase A 10.9 10.9 10.9 10.9 

Humidifier 

Capacity kg/hr 0.60 - 3.00 0.60 - 3.00 0.60 - 3.00 0.60 - 3.00 

Rating kW 2.25 2.25 2.25 2.25 


Larger Fan Motor - Per Fan 

Quantity / Motor Size kW 1 x 0.55 1 x 0.60 N/A N/A 

Full Load Amps A 6.80 7.70 N/A N/A 

Locked Rotor Amps A 17.00 20.50 N/A N/A 

(1) Values given for full function units (incl. electric heating, humidification and matched condenser) at ARI conditions with standard fan motors, for 

optional data, please contact Airedale. 



AIR & WATER COOLED


32 

-DF 






DF15X-EZ DF17X-EZ DF22X2-EZ DF25X2-EZ 

DF15WX-EZ DF17WX-EZ DF22WX2-EZ DF25WX2-EZ 

Standard Matched Condensers - X C25 C35 C45 C45 























Motor Size kW 5.6 6.5 4.7 4.7 











Humidifier 

Capacity kg/hr 0.60 - 3.00 0.60 - 3.00 0.60 - 3.00 0.60 - 3.00 

Rating kW 2.25 2.25 2.25 2.25 



Quantity / Motor Size kW N/A N/A N/A N/A 

Full Load Amps A N/A N/A N/A N/A 

Locked Rotor Amps A N/A N/A N/A N/A 


optional data, please contact Airedale.






Standard Matched Condensers - X C45 C45 C45 CS50 























Motor Size kW 8.3 8.3 9.7 11.0 









Rating (Total) kW 20 20 20 20 


Humidifier 

Capacity kg/hr 1.60 - 8.00 1.60 - 8.00 1.60 - 8.00 3.00 - 15.00 

Rating kW 6.00 6.00 6.00 11.25 



Quantity / Motor Size kW 1 x 2.2 1 x 3.0 N/A 1 x 5.5 

Full Load Amps A 4.7 6.3 N/A 10.9 

Locked Rotor Amps A 32.9 44.1 N/A 76.3 

Next Larger Fan Motor - Per Fan 





optional data, please contact Airedale. 



AIR & WATER COOLED


34 

-DF 






DF40X-EZ DF45X-EZ DF50X2-EZ DF55X2-EZ DF60X2-EZ 

DF40WX-EZ DF45WX-EZ DF50WX2-EZ DF55WX2-EZ DF60WX2-EZ 

Standard Matched Condensers - X CS50 CS50 CS65 CS80 CS80 


Nominal Run Amps A 72.60 75.70 90.50 91.20 97.60 

Maximum Start Amps A 194.70 224.70 204.80 196.70 201.50 

Recommended Mains Fuse Size A 80 100 100 100 125 

Max Mains Incoming Cable Size mm² 35 35 35 35 35 


Control circuit VAC 24 24 24 24 24 


Nominal Run Amps A 67 70.1 82.1 82.5 88.9 

Maximum Start Amps A 189.1 219.1 197.8 188 192.8 




Control circuit VAC 24 24 24 24 24 


Quantity/Motor Size kW 1 x 5.5 1 x 5.5 2 x 2.2 2 x 2.2 2 x 3.0 

Full Load Amps A 10.9 10.9 4.7 4.7 6.3 

Locked Rotor Amps A 76.3 76.3 32.9 32.9 44.1 





Motor Size kW 11.9 13.2 7.8 8.5 9.7 



Quantity/Motor Size kW 2 x 0.78 2 x 0.78 3 x 0.78 3 x 0.78 3 x 0.78 




Stage of Reheat 3 3 3 3 3 

Number of Elements 8 8 12 12 12 

Rating (Total) kW 20.0 20.0 30.0 30.0 30.0 

Current Per Phase A 32.4 32.4 43.6 43.6 43.6 

Humidifier 

Capacity kg/hr 3.00 - 15.00 3.00 - 15.00 3.00 - 15.00 3.00 - 15.00 3.00 - 15.00 

Rating kW 11.25 11.25 11.25 11.25 11.25 



Quantity / Motor Size kW N/A N/A 2 x 3.0 2 x 3.0 2 x 4.0 

Full Load Amps A N/A N/A 6.3 6.3 8.2 

Locked Rotor Amps A N/A N/A 44.1 44.1 57.4 


Quantity / Motor Size kW 

Motor Size kW N/A N/A 2 x 4.0 2 x 4.0 N/A 

Full Load Amps A N/A N/A 8.2 8.2 N/A 

Locked Rotor Amps A N/A N/A 57.4 57.4 N/A 

(1) Values given for full function units (incl. electric heating, humidification and matched condenser) at ARI conditions with standard fan motors and 

filters, for optional data, please contact Airedale.


Sound Data - Air & Water Cooled Models 

SOUND DATA 

DF6X-EZ 

DF6WX-EZ 

DF8X-EZ 

DF8WX-EZ 

DF10X-EZ 

DF10WX-EZ 

DF13X-EZ 

DF13WX-EZ 

DF15X-EZ 

DF15WX-EZ 

DF17X-EZ 

DF17WX-EZ 

DF22X2-EZ 

DF22WX2-EZ 

DF25X2-EZ 

DF22WX2-EZ 

IMPORTANT To be read in conjunction with Method of Sound Measurement. 

Sound 

Overall 

Frequency (Hz) dB 

Measurement 

dB(A) 63 125 250 500 1000 2000 4000 8000 

Discharge Air Power 71 65 69 67 67 67 66 58 54 

Return Air Power 62 68 68 66 59 54 51 49 39 

Case Breakout Power 58 64 66 58 55 52 47 44 38 

Sound @ 3m Pressure 43 50 51 43 40 37 33 29 24 





























(1) dB(A) is the overall sound level, measured on the A scale. 

(2) All sound data measured at nominal conditions. 

The Sound Pressure data quoted is only valid where the unit is installed on a false floor and against a rear wall. If the equipment is 

placed adjacent to any other vertical reflective walls, values may vary to those stated, typically increasing by 3dB for each side 

added. Values stated do not include for room reverberation conditions. 



AIR & WATER COOLED


36 

-DF 

Sound Data - Air & Water Cooled Models 

SOUND DATA 

DF26X-EZ 

DF26WX-EZ 

DF28X-EZ 

DF28WX-EZ 

DF31X-EZ 

DF31WX-EZ 

DF35X-EZ 

DF35WX-EZ 

DF40X-EZ 

DF40WX-EZ 

DF45X-EZ 

DF45WX-EZ 

DF50X2-EZ 

DF50WX2-EZ 

DF55X2-EZ 

DF55WX2-EZ 

DF60X2-EZ 

DF60WX2-EZ 





Sound 

Overall 


Measurement 

dB(A) 63 125 250 500 1000 2000 4000 8000 









































added. Values stated do not include for room reverberation conditions.


Design Data - Air & Water Cooled Models 

WATERSIDE PRESSURE DROP (KPA) - WX TYPE MODELS 

DF6WX - DF25WX2 

DF26WX - DF60WX2 

PRESSURE DROP (kPa) 


200 

150 

100 

50 

0 

250 

200 

150 

100 

50 

0 

200 

150 

100 

50 

6 8 - 13 15 17 -25 

0 

0 0.25 0.5 0.75 1 1.25 1.5 1.75 2 

0.00 0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00 

250 

200 

150 

100 

50 

WATERFLOW (l/s) 

26 - 35 40 

45 - 60 

0 

1 1.5 2 2.5 3 3.5 4 4.5 5 

1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 


(1) Includes coil, 3 port valve and pipework. 

(2) To calculate 3 port valve pressure drop: 

P valve = 

2 

Q 

 

M 

(3) Fluid 100% water, for glycol use, refer to Ethylene Glycol Correction Factors. 

Kv 

where P = Pressure Drop in kPa, Q = Water Flow Rate in l/s and M = 

36 

M Values 

Model Sizes 6 - 15 17 - 25 26 - 35 40 - 60 

Water Cooled Valve 0.13 0.22 0.28 0.46 



AIR & WATER COOLED


38 

-DF 


LOW PRESSURE HOT WATER (OPTIONAL EXTRA) - X & WX TYPE MODELS 

DF6 - DF25 

DF26 - DF60 





P valve = 

2 

Q 

 

M 

M Values 

Model Sizes 6 - 60 

LPHW 0.18 

20 

15 

10 

5 

20 

15 

10 

5 



6 - 10 


13 - 17 

22 - 25 

0 

0 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 

0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 

80 

70 

60 

50 

40 

30 

20 

10 

80 

70 

60 

50 

40 

30 

20 

10 

26 - 31 


35 - 45 

50 - 60 

0 

0 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 

0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 


Kv 


36



SYSTEM PIPEWORK 

SCHEMATIC 

X Type 

19 

17 

16 

21 

20 SPT 

4 

TT 

LP 

HP 

4 

15 

12 

WX Type 

19 

17 

21 

20 

4 

T T 

S P T 

LP 

16 H P 

4 

28 

HC 

23 

22 

23 

22 

24 

B 

27 

15 

1 

3 

18 

2 

14 

3 

1 

BV 29 

4 

18 

13/2 13/1 

26 

7 

7 

25 

24 B 

B 24 

Design should be in accordance with good refrigeration practice to ensure good oil return 

to the compressor under all normal operating conditions to prolong the life of your unit. 

4 

4 

TEV 

5 

6 

EEV 8 

T EV 

9 

4 

HPT 10 

11 

12 

13 

5 

6 

E EV 8 

9 

4 

HPT 10 

11 

4 

1 Indoor Unit 

2 Outdoor Unit(s) 

3 Evaporator Coil 

4 Schrader Point 

5 Liquid Expansion Line 

6 Thermostatic Expansion Valve (TEV) - Standard 

7 Equalisation Line - Standard with TEV 

8 Electronic Expansion valve (EEV) - Optional in place of TEV 

9 Sight Glass 

10 Head Pressure Transducer 

11 Filter Drier (Supplied Loose) 

12 Shut Off Valve (Supplied loose) - Optional with Outdoor Units 

13 Liquid Line 

14 Condenser Coil & Fan 

15 Discharge Line 

16 High Pressure Switch 

17 Scroll Compressor 

18 Additional Scroll Compressor (Tandem Set) 

19 Low Pressure Switch 

20 Suction Pressure Transducer - Optional with EEV 

21 Temperature Transmitter - Optional with EEV 

22 TEV Bulb - Standard with TEV 

23 Suction Line 

1 Indoor Unit 

3 Evaporator Coil 

4 Schrader Point 

5 Liquid Expansion Line 

6 Thermostatic Expansion Valve (TEV) - Standard 

7 Equalisation Line - Standard with TEV 

8 Electronic Expansion valve (EEV) - Optional in place of TEV 

9 Sight Glass 

10 Head Pressure Transducer 

11 Filter Drier (Supplied Loose) 

13 Liquid Line 1 & 2 

15 Discharge Line 

16 High Pressure Switch 

17 Scroll Compressor 

18 Additional Scroll Compressor (Tandem Set) 

19 Low Pressure Switch 

20 Suction Pressure Transducer - Optional with EEV 

21 Temperature Transmitter - Optional with EEV 

22 TEV Bulb - Standard with TEV 

23 Suction Line 

24 Binder Point 

25 Plate Condenser 

26 Bypass Leg & Ball Valve 

27 Liquid Receiver 

28 Head Pressure Control Valve 

29 Bleed Valve 



AIR & WATER COOLED


40 

-DF 


REFRIGERANT PIPE 

SIZING GUIDE - 

X TYPE MODELS 




Pipe lengths calculated for Indoor unit with standard Outdoor CE Condenser match. For 

Condenser unit connections sizes, please refer to Condenser Installation Manual. 

Indoor Outdoor Indoor Unit 

Equivalent Pipe Lengths with R407C 

Connection Size 

0-15m 15-40m 

Liquid Discharge Liquid 

Discharge 

Horizontal 

Liquid 

Discharge 

(1) Vertical (2) Horizontal (1) Vertical (2) 

DF6X C11 3/8” 5/8” 3/8” 5/8” 5/8” 1/2” 3/4” 3/4” 

DF8X C15 3/8” 5/8” 3/8” 5/8” 5/8” 1/2” 3/4” 3/4” 

DF10X C15 3/8” 5/8” 3/8” 5/8” 5/8” 1/2” 3/4” 3/4” 

DF13X C20 1/2” 3/4” 1/2” 3/4” 3/4” 5/8” 7/8” 7/8” 

DF15X C25 1/2” 3/4” 1/2” 3/4” 3/4” 5/8” 7/8” 7/8” 

DF17X C35 1/2” 3/4” 1/2” 3/4” 3/4” 5/8” 7/8” 7/8” 

DF22X2 C45 5/8” 7/8” 5/8” 7/8” 7/8” 5/8” 7/8” 7/8” 

DF25X2 C45 5/8” 7/8” 5/8” 7/8” 7/8” 5/8” 1 1/8” 7/8” 

DF26X C45 5/8” 7/8” 5/8” 1 1/8” 1 1/8” 3/4” 1 1/8” 1 1/8” 

DF28X C45 5/8” 7/8” 5/8” 1 1/8” 1 1/8” 3/4” 1 1/8” 1 1/8” 

DF31X C45 5/8” 7/8” 5/8” 1 1/8” 1 1/8” 3/4” 1 1/8” 1 1/8” 

DF35X CS50 5/8” 7/8” 5/8” 1 1/8” 1 1/8” 3/4” 1 3/8” 1 1/8” 

DF40X CS50 7/8” 1 1/8” 7/8” 1 3/8” 1 3/8” 3/4” 1 3/8” 1 3/8” 

DF45X CS50 7/8” 1 1/8” 7/8” 1 3/8” 1 3/8” 7/8” 1 3/8” 1 3/8” 

DF50X2 CS65 7/8” 1 3/8” 7/8” 1 3/8” 1 3/8” 7/8” 1 5/8” 1 3/8” 

DF55X2 CS80 7/8” 1 3/8” 7/8” 1 5/8” 1 3/8” 7/8” 1 5/8” 1 5/8” 

DF60X2 CS80 7/8” 1 3/8” 7/8” 1 5/8” 1 5/8” 1 1/8” 1 5/8” 1 5/8” 

(1) For interconnecting pipework with a predominantly horizontal layout. 

(2) For interconnecting pipework with a predominantly vertical layout. 

REFRIGERANT 

CHARGING GUIDE - 

X TYPE MODELS 

Unit Refrigerant Charge 

(kg/Circuit) 

The following information can be used to estimate the refrigerant quantity required in a 

typical split system installation. 

The following table shows the refrigerant charge / circuit for the indoor and outdoor units. 

Indoor Unit Standard Condenser Upgraded Condenser 

(IR) kg/Circuit (OR) kg/Circuit (OR) kg/Circuit 

DF6X-EZ 2.0 C11 2.1 C15 2.1 

DF8X-EZ 2.0 C15 2.1 C20 2.3 

DF10X-EZ 2.0 C15 2.1 C20 2.3 

DF13X-EZ 3.2 C20 2.3 C25 3.1 

DF15X-EZ 3.2 C25 3.1 C35 6.1 

DF17X-EZ 3.2 C35 6.1 C45 6.1 

DF22X2-EZ 4.1 C45 6.1 CS50 4.3 

DF25X2-EZ 4.1 C45 6.1 CS50 4.3 

DF26X-EZ 4.9 C45 6.1 CS50 4.3 

DF28X-EZ 4.9 C45 6.1 CS50 4.3 

DF31X-EZ 4.9 C45 6.1 CS50 4.3 

DF35X-EZ 6.5 CS50 4.3 CS65 8.5 

DF40X-EZ 6.5 CS50 4.3 CS65 8.5 

DF45X2-EZ 7.9 CS50 4.3 CS65 8.5 

DF50X2-EZ 7.7 CS65 8.5 CS80 7.3 

DF55X2-EZ 9.4 CS80 7.3 CS105 14.6 

DF60X2-EZ 9.4 CS80 7.3 CS105 14.6



REFRIGERANT PIPE SIZING GUIDE - X TYPE MODELS 

Liquid Line Refrigerant 

Charge (kg/m) 

IMPORTANT 

To Calculate the Liquid 

Line Refrigerant Charge 

(kg) 

To Calculate the System 

Refrigerant Charge (kg) 

The following table shows the refrigerant charge / metre for the liquid line, using R407C 

and assuming liquid line temperature of 40°C. 

Liquid Line (m) kg/m 

3/8” 0.05 

1/2” 0.11 

5/8” 0.16 

3/4” 0.24 

7/8” 0.34 

The pipe sizes/refrigerant charges quoted are for guidance only. It is the 

responsibility of the installing contractor/site engineer to check the pipe 

sizes/refrigerant charge is correct for each system installation and application. 

Split systems may require additional oil which should be added to the low side of 

each compressor. 

Design should be in accordance with accepted refrigeration practice to ensure 

good oil return to the compressor(s) under all normal operating conditions. 

The liquid line refrigerant charge can be calculated using the following equation: 

LR = L x m 

Where: 

LR = Total Liquid Line Refrigerant charge (kg) 

L = Length of Interconnecting pipework (metres) 

m = Liquid Line Refrigerant charge / metre. Refer to Liquid Line Refrigerant Charge (kg/m) 

in this section 

The system refrigerant charge can be calculated using the following equation: 

SR = LR + IR + OR 

Where: 

SR = Total System Refrigerant charge (kg) 

LR = Total Liquid Line Refrigerant charge. (As calculated from above) 

IR = Indoor Unit Refrigerant Charge. Refer to Unit Refrigerant Charge (kg/Circuit) in this 

section 

OR = Outdoor Unit Refrigerant Charge. Refer to Unit Refrigerant Charge (kg/Circuit) in this 

section 

Example Indoor Unit Model Ref. = DF25X2-EZ (Tandem Set) 

Outdoor Unit Model Ref. = C45-H Condenser 

Interconnecting Pipework = 10 metres 

Selecting The Liquid Line Size 

From the Liquid Line Refrigerant Charge (kg/m) table in this section, the liquid line size given for 

pipework length of 10 metres is: 

Liquid Line Size = 5/8” 

Liquid Line Refrigerant Charge 

LR = L x m Where: 

L = 10 metres 

m = 0.16 kg/m 

LR = 10 x 0.16 Liquid Line Charge = 1.6 kg 

System Refrigerant Charge 

SR = LR + IR + OR Where: 

LR = 1.6 kg. (As calculated from above) 

IR = 4.1 kg 

OR = 6.1 kg 

SR = 1.6 + 4.1 + 5.2 System Refrigerant Charge = 11.8 kg / Circuit 



AIR & WATER COOLED


42 

-DF 


ETHYLENE GLYCOL CORRECTION FACTORS 

WX Type Models 

For conditions outside those quoted, please refer to Airedale. 




The Use of Glycol Glycol is recommended when a supply water temperature of +5°C or below is required or 

when static water can be exposed to freezing temperatures. 

The effect of glycol in the system has a direct effect upon the Cooling Duty, the Design 

Flow Rate and the unit Pressure Drop. 

To approximate the effect of glycol on unit performance, the following correction factors 

when applied can be used as a guide. 

Where: 

V = Corrected Flow Rate. 

THR = Equivalent Total Heat of Rejection (THR) (kW), refer to Cooling Duties - WX Type 

Models (the change in THR values as glycol concentration is increased is 

negligible.) 

T = Temperature difference between Water/Glycol Inlet/Outlet (°C). 

P = Maximum Water/ Glycol Pressure Drop for the indoor unit (kPa). 

Pw = Equivalent Water Pressure Drop for indoor unit (kPa), use the corrected flow 

rate V . Refer to Waterside Pressure Drop (kPa) - WX Type Models. 

Ethylene Glycol (Volume) / Freezing Point °C 

10% / -4°C 20% / -9°C 30% / -15°C 40% / -23°C 

V P 

Corrected Flow Rate 

Corrected Pressure Drop 

= THR / T 

= Pw 

Flow Rate 

Pressure Drop 

x by 

0.240 

1.041 

0.250 

1.083 

0.250 

1.133 

0.260 

1.200 

Example: DF26WX-EZ Condensing Entering / Leaving at 30°C/35°C, Based on ΔT of 5°C, 

24°C/45% RH Ambient, 20% Ethylene Glycol 


10% / -4°C 20% / -9°C 30% / -15°C 40% / -23°C 

V 1.64 l/s 

THR (32.7) / T 

= 

(12 – 7 = 5T) = 

6.54 

x by 

0.240 0.250 0.250 0.260 

P 70.4 kPa = Pw 65 kPa 1.041 1.083 1.133 1.200



INTERCONNECTING WIRING 

X Type Matched System 

WX Type 

X & WX Type 

Indoor Controls Only 

INDOOR UNIT 

INDOOR UNIT 

INDOOR UNIT 

Remote On/Off INDOOR UNIT 

Run/Standby Network 

INDOOR UNIT 

L1 

L2 

L3 

N 

PE 

C1 

N1 

PE 

L1 

L2 

L3 

N 

PE 

Mains Incoming Supply 400V / 3PH / +N / 50Hz 

Mains sub fused supply 230vac 50Hz 

- (must be wired from indoor unit) 

Link 


560 Volt Free Alarm N/O 

561 Volt Free Alarm Common 

562 Volt Free Alarm N/C 

502 Fire Shutdown input 

583 Healthy in N/C Condition 

502 Remote On/OFF 

522 

TK 

TK 

U1 

U2 

PE 

Common Alarm 

Rx-/Tx- 

Use Awg20/22 twisted pair (with overall shield) 

Rx-/Tx- 

Rx+/Tx+ cable, Belden ref. 8762 (Airedale ref: 017-415), Rx+/Tx+ 

GND 

or equivalent, for network 

GND 

OUTDOOR 

UNIT 

INDOOR UNIT 

N + 1 

CABLE INSTALLATION In line with IEE Wiring Regulations, the following should be observed: 

Extra low voltage control cables (ELV) and mains power cable should be segregated 

by a minimum distance of 50mm. 

If cables must cross, it is recommended that they cross at right angles. 

Airedale recommends that ELV cables are screened at one end to 

earthed enclosures. 



AIR & WATER COOLED

CHILLED WATER 

44 

-DF 

CHILLED W AT ER (CW ) MODEL S 

Performance Data - Chilled Water Models 

COOLING DUTIES 




Cooling Capacity (1) Chilled Water Inlet/Outlet °C 

Air On ºC DB 

5/10°C 7/12°C 8/14°C 10/16°C 

/ % RH TC (kW) SC (kW) TC (kW) SC (kW) TC (kW) SC (kW) TC (kW) SC (kW) 

22 / 50 8.5 6.9 6.7 6.0 5.1 5.1 4.1 4.1 

DF6CW-EZ 

24 / 45 9.8 8.1 8.0 7.1 6.3 6.3 5.3 5.3 

26 / 40 11.1 9.4 8.9 8.4 7.6 7.6 6.6 6.6 

22 / 50 10.6 8.9 7.7 7.7 6.6 6.6 5.3 5.3 

DF8CW-EZ 

24 / 45 12.3 10.5 9.2 9.2 8.1 8.1 6.8 6.8 

26 / 40 13.9 12.2 10.9 10.9 9.8 9.8 8.4 8.4 

22 / 50 12.4 10.8 9.3 9.3 7.9 7.9 6.3 6.3 

DF10CW-EZ 

24 / 45 14.6 12.9 11.1 11.1 9.8 9.8 8.1 8.1 

26 / 40 16.4 14.7 13.1 13.1 11.7 11.7 10.2 10.2 

22 / 50 16.2 13.0 12.4 11.3 9.7 9.7 7.7 7.7 

DF13CW-EZ 

24 / 45 18.7 15.2 14.8 13.5 12.0 12.0 10.1 10.1 

26 / 40 21.2 17.6 17.2 15.8 14.4 14.4 12.4 12.4 

22 / 50 18.5 15.2 14.0 14.0 11.3 11.3 9.0 9.0 

DF15CW-EZ 

24 / 45 21.4 17.7 17.5 15.6 13.9 13.9 11.7 11.7 

26 / 40 24.3 20.5 19.4 18.4 16.7 16.7 14.4 14.4 

22 / 50 20.7 17.2 15.0 15.0 12.9 12.9 10.2 10.2 

DF17CW-EZ 

24 / 45 23.9 20.1 19.6 17.7 15.8 15.8 13.2 13.2 

26 / 40 27.2 23.3 21.9 21.1 19.0 19.0 16.4 16.4 

22 / 50 26.0 21.3 20.5 18.5 15.9 15.9 12.7 12.7 

DF22CW-EZ 

24 / 45 30.1 24.9 24.6 22.0 19.6 19.6 16.4 16.4 

26 / 40 34.2 29.0 27.5 26.1 23.6 23.6 20.3 20.3 

22 / 50 29.2 24.4 21.3 21.3 18.1 18.1 14.4 14.4 

DF25CW-EZ 

24 / 45 33.8 28.6 27.8 25.1 22.3 22.3 18.7 18.7 

26 / 40 38.5 33.2 30.7 29.9 26.9 26.9 23.2 23.2 

22 / 50 34.3 27.0 26.5 23.6 20.8 20.8 16.8 16.8 

DF26CW-EZ 

24 / 45 39.4 31.4 31.3 27.9 25.3 25.3 21.3 21.3 

26 / 40 44.6 36.4 36.4 32.9 30.1 30.1 26.1 26.1 

22 / 50 37.8 30.2 29.1 26.3 23.2 23.2 18.7 18.7 

DF28CW-EZ 

24 / 45 43.5 35.1 34.5 31.1 28.1 28.1 23.6 23.6 

26 / 40 49.2 40.6 39.8 36.4 33.5 33.5 29.1 29.1 

22 / 50 42.3 34.1 32.4 29.8 26.1 26.1 21.1 21.1 

DF31CW-EZ 

24 / 45 48.6 39.8 38.4 35.3 31.8 31.8 26.8 26.8 

26 / 40 55.1 46.1 44.6 41.7 37.9 37.9 32.8 32.8 

22 / 50 49.4 40.5 39.1 35.1 30.6 30.6 24.5 24.5 

DF35CW-EZ 

24 / 45 57.0 47.2 44.8 42.1 37.4 37.4 31.3 31.3 

26 / 40 64.8 54.9 52.2 49.5 44.8 44.8 38.7 38.7 

22 / 50 53.6 44.4 42.9 38.9 33.5 33.5 26.8 26.8 

DF40CW-EZ 

24 / 45 61.8 51.9 50.8 45.8 40.9 40.9 34.3 34.3 

26 / 40 70.3 60.2 56.4 54.3 49.1 49.1 42.4 42.4 

22 / 50 58.9 47.1 45.1 41.0 35.7 35.7 28.6 28.6 

DF45CW-EZ 

24 / 45 67.9 54.8 53.6 48.5 43.6 43.6 36.6 36.6 

26 / 40 77.7 68.2 61.5 61.5 55.1 55.1 47.4 47.4 

22 / 50 58.5 50.1 43.4 43.4 36.8 36.8 29.1 29.1 

DF50CW-EZ 

24 / 45 68.1 58.6 51.9 51.9 45.6 45.6 37.9 37.9 

26 / 40 77.0 63.7 62.0 56.7 52.3 52.3 45.2 45.2 

22 / 50 65.1 53.1 45.9 45.9 39.5 39.5 31.2 31.2 

DF55CW-EZ 

24 / 45 75.4 62.0 59.0 55.1 48.6 48.6 40.5 40.5 

26 / 40 85.0 71.6 64.8 64.8 58.6 58.6 50.4 50.4 

22 / 50 69.6 57.3 49.5 49.5 42.5 42.5 33.6 33.6 

DF60CW-EZ 

24 / 45 80.7 66.9 59.2 59.2 52.4 52.4 43.8 43.8 

26 / 40 90.3 77.3 70.0 70.0 63.1 63.1 54.4 54.4 



(2) Water flow rate (l/s) = TC (4.19 x T) at 100% Water. For glycol use, refer to Ethylene Glycol Correction Factors. 

(3) Refer to the Waterside Pressure Drop (kPa) in this section. 

OPERATING LIMITS 

Cooling 



Water Entering Temperature +5°C to +10°C 

Water Leaving Temperature +10°C to +16°C 

(1) Conditions quoted at 100% Water. 

(2) For conditions outside those quoted, please refer to Airedale.


General Specification - Chilled Water Models 


DF6CW-EZ DF8CW-EZ DF10CW-EZ DF13CW-EZ 

Capacity (1) 

Nom Cooling (Gross) kW 8.0 9.2 11.1 14.8 

Fan Gain 

Dimensions 

kW 0.33 0.60 0.65 0.65 

H x W x D 

Weight 

mm 1940 x 670 x 670 1940 x 670 x 670 1940 x 670 x 670 1940 x 990 x 670 

Machine kg 155 165 168 195 




Cooling Coil Copper Tube/Turbulated Hydrophilic Coated Aluminium Fins 

Cooling/Dehum Stages 1 (Modulated) / 1 

Fan & Motor Centrifugal - Designed to 25Pa ESP 


Maximum ESP Pa 196 140 118 294 

Nominal Airflow 

Connections 

m³/s 0.55 0.75 0.95 1.00 

Inlet/Outlet mm 22 22 22 28 



Quantity 


1 1 1 2 


Humidifier 

kW 7.5 7.5 7.5 7.5 

Capacity kg/hr 0.6 - 3.0 0.6 - 3.0 0.6 - 3.0 0.6 - 3.0 

Feed/Drain 


3/4” BSPF Braided flexible hose/19mm hose connection 

Head m 8 8 8 8 

Flow l/m 5 5 5 5 



Quantity / Motor Size kW 1 x 0.55 / N/A 1 x 0.60 / N/A N/A / N/A N/A / N/A 

Maximum ESP Pa 254 / N/A 253 / N/A N/A / N/A N/A / N/A 

Fan Gain rpm 0.60 / N/A 0.65 / N/A N/A / N/A N/A / N/A 





Threaded Connections 

mm 22 22 22 22 

Brass Male Taper in 3/4 3/4 3/4 1 

(1) Entering air 24°C/45% RH water 7°C/12°C. 





CHILLED WATER

CHILLED WATER 

46 

-DF 







Capacity (1) 

Nom Cooling (Gross) kW 17.5 19.6 24.6 27.8 

Fan Gain 

Dimensions 

kW 1.31 1.20 1.31 1.31 

H x W x D 

Weight 

mm 1940 x 990 x 670 1940 x 990 x 670 1940 x 1310 x 670 1940 x 1310 x 670 

Machine kg 200 200 252 252 






Fan & Motor Centrifugal Direct Drive - Designed to 25Pa ESP 




Connections 

m³/s 1.20 1.40 1.70 2.00 




Quantity 


2 2 3 3 


Humidifier 

kW 7.5 7.5 15.0 15.0 

Capacity kg/hr 0.6 - 3.0 0.6 - 3.0 0.6 - 3.0 0.6 - 3.0 

Feed/Drain 


3/4” BSPF Braided flexible hose/19mm hose connection 

Head m 8 8 8 8 

Flow l/m 5 5 5 5 



Quantity / Motor Size kW N/A / N/A N/A / N/A N/A / N/A N/A / N/A 

Maximum ESP Pa N/A / N/A N/A / N/A N/A / N/A N/A / N/A 

Fan Gain rpm N/A / N/A N/A / N/A N/A / N/A N/A / N/A 






mm 22 22 22 22 

Brass Male Taper in 1 1 1 1 








Capacity 


Fan Gain 

Dimensions 

kW 0.98 1.43 2.60 2.60 

H x W x D 

Weight 

mm 1940 x 1460 x 750 1940 x 1460 x 750 1940 x 1460 x 750 1940 x 1835 x 750 

Machine kg 351 351 354 410 








Speed @ 25Pa / Maximum ESP rpm 775 / 801 871 / 909 1008 / 1171 980 / 1078 



Connections 

m³/s 2.1 2.4 2.8 3.3 




Quantity 


3 3 3 3 


Humidifier 

kW 20 20 20 20 

Capacity kg/hr 1.6 - 8.0 1.6 - 8.0 1.6 - 8.0 3.0 - 15.0 

Feed/Drain 



Head m 10.8 10.8 10.8 10.8 

Flow l/m 5 5 5 5 



Quantity / Motor Size kW 1 x 2.20 / 1 x 3.00 1 x 3.00 / 1 x 4.00 N/A / N/A 1 x 5.50 / N/A 

Maximum ESP Pa 345 / 665 362 / 722 N/A / N/A 322 / N/A 

Speed @ Maximum ESP rpm 1057 / 1350 1144 / 1439 N/A / N/A 1196 / N/A 

Fan Gain kW 1.43 / 1.95 1.95 / 2.60 N/A / N/A 3.58 / N/A 






mm 22 22 22 22 

Brass Male Taper in 1 1/2 1 1/2 1 1/2 1 1/2 






CHILLED WATER

CHILLED WATER 

48 

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DF40CW-EZ DF45CW-EZ DF50CW-EZ DF55CW-EZ DF60CW-EZ 

Capacity 

Nom Cooling (Gross) (1) kW 50.8 53.6 51.9 59.0 59.2 

Fan Gain kW 3.58 3.58 2.86 2.86 3.90 

Dimensions 1940 x 1835 x 1940 x 1835 x 1940 x 2170 x 1940 x 2170 x 1940 x 2170 x 750 

H x W x D 

Weight 

mm 

750 

750 

750 

750 

Machine kg 431 442 486 499 495 








Speed @ 25Pa / Maximum ESP rpm 1094 / 1186 1094 / 1186 1167 / 1170 1167 / 1170 1307 / 1311 

Maximum ESP Pa 175 175 35 35 75 


Connections 

m³/s 3.7 3.7 4.2 4.2 4.6 

Inlet/Outlet mm 42 42 42 42 42 

Condensate Drain Hose mm 19 19 19 19 19 


Quantity 

Optional Extras 

3 3 4 4 4 


Humidifier 

kW 20 20 30 30 30 

Capacity kg/hr 3.0 - 15.0 3.0 - 15.0 3.0 - 15.0 3.0 - 15.0 3.0 - 15.0 

Feed/Drain 



Head m 10.8 10.8 10.8 10.8 10.8 

Flow l/m 5 5 5 5 5 



Quantity / Motor Size kW N/A / N/A N/A / N/A 2 x 3.0 / 2 x 4.0 2 x 3.0 / 2 x 4.0 2 x 4.0 / N/A 

Maximum ESP Pa N/A / N/A N/A / N/A 310 / 360 310 / 360 275 / N/A 

Speed @ Maximum ESP rpm N/A / N/A N/A / N/A 1448 / 1498 1448 / 1498 1497 / N/A 

Fan Gain kW N/A / N/A N/A / N/A 3.9 / 5.2 3.9 / 5.2 5.2 / N/A 


Capacity Gross (2) kW 31.50 31.50 38.30 38.30 39.80 

Water Flow (Nominal) l/s 0.70 0.70 0.85 0.85 0.89 



mm 22 22 22 22 22 

Brass Male Taper in 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 








Unit Data (1) 






Control circuit 


VAC 24 24 24 24 



Locked Rotor Amps 



A 8.75 17.00 20.50 20.50 




Current Per Phase 

Humidifier 

A 10.9 10.9 10.9 10.9 

Capacity kg/hr 0.60 - 3.00 0.60 - 3.00 0.60 - 3.00 0.60 - 3.00 

Rating kW 2.25 2.25 2.25 2.25 

Full Load Amps 


A 3.50 3.50 3.50 3.50 





Unit Data (1) 


Maximum Start Amps A 25 25 34.6 34.6 






VAC 24 24 24 24 






A 25.0 25.0 20.5 20.5 





Humidifier 

A 10.9 10.9 21.8 21.8 

Capacity kg/hr 0.60 - 3.00 0.60 - 3.00 0.60 - 3.00 0.60 - 3.00 

Rating kW 2.25 2.25 2.25 2.25 



A 3.50 3.50 3.50 3.50 

Quantity / Motor Size kW N/A N/A N/A N/A 

Full Load Amps A N/A N/A N/A N/A 

Locked Rotor Amps A N/A N/A N/A N/A 

(1) Values given for full function units (incl. electric heating and humidification) at ARI conditions with standard fan motors, for optional data, please 

contact Airedale. 



CHILLED WATER

CHILLED WATER 

50 

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Unit Data (1) 








VAC 24 24 24 24 






A 21.0 32.9 57.4 57.4 





Humidifier 

A 32.4 32.4 32.4 32.4 

Capacity kg/hr 1.60 - 8.00 1.60 - 8.00 1.60 - 8.00 3.00 - 15.00 

Rating kW 6.00 6.00 6.00 11.25 



A 8.70 8.70 8.70 15.80 

Quantity / Motor Size kW 1 x 2.2 1 x 3.0 N/A 1 x 5.5 

Full Load Amps A 4.7 6.3 N/A 10.9 



A 32.9 44.1 N/A 76.3 




DF40CW-EZ DF45CW-EZ DF50CW-EZ DF55CW-EZ DF60CW-EZ 

Unit Data (1) 








VAC 24 24 24 24 24 






A 76.3 76.3 32.9 32.9 44.1 

Stage of Reheat 3 3 3 3 3 

Number of Elements 8 8 12 12 12 

Rating (Total) kW 20.0 20.0 30.0 30.0 30.0 


Humidifier 

A 32.4 32.4 43.6 43.6 43.6 

Capacity kg/hr 3.00 - 15.00 3.00 - 15.00 3.00 - 15.00 3.00 - 15.00 3.00 - 15.00 

Rating kW 11.25 11.25 11.25 11.25 11.25 



A 15.80 15.80 15.80 15.80 15.80 

Quantity / Motor Size kW N/A N/A 2 x 3.0 2 x 3.0 2 x 4.0 

Full Load Amps A N/A N/A 6.3 6.3 8.2 



A N/A N/A 44.1 44.1 57.4 

Quantity / Motor Size kW N/A N/A 2 x 4.0 2 x 4.0 N/A 

Full Load Amps A N/A N/A 8.2 8.2 N/A 

Locked Rotor Amps A N/A N/A 57.4 57.4 N/A 

(1) Values given for full function units (incl. electric heating and humidification) at ARI conditions with standard fan motors, for optional data, please 

contact Airedale.


Sound Data - Chilled Water Models 

SOUND DATA 

DF6CW-EZ 

DF8CW-EZ 

DF10CW-EZ 

DF13CW-EZ 

DF15CW-EZ 

DF17CW-EZ 

DF22CW-EZ 

DF25CW-EZ 


Sound 

Overall 


Measurement 

dB(A) 63 125 250 500 1000 2000 4000 8000 





































added. Values stated do not include for room reverberation conditions. 



CHILLED WATER

CHILLED WATER 

52 

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Sound Data - Chilled Water Models 

SOUND DATA 

DF26CW-EZ 

DF28CW-EZ 

DF31CW-EZ 

DF35CW-EZ 

DF40CW-EZ 

DF45CW-EZ 

DF50CW-EZ 

DF55CW-EZ 

DF60CW-EZ 





Sound 

Overall 


Measurement 

dB(A) 63 125 250 500 1000 2000 4000 8000 









































added. Values stated do not include for room reverberation conditions.


Design Data - Chilled Water Models 

WATERSIDE PRESSURE DROP (KPA) 

Chilled Water System 

DF6 - DF25 

DF26 - DF60 



300 

250 

200 

150 

100 

50 

0 

500 

500 

400 

300 

200 

100 

0 

0 

6 - 10 13 - 17 22 - 25 

0.0 0 0.5 0.5 1.0 1.0 1.5 2.0 2.0 2.5 3.0 3.5 


26-31 35-40 45 

0.0 0 1.0 1.0 2.0 2.0 3.0 3.0 4.0 5.0 5.0 6.0 6.0 7.0 7.0 8.0 8.0 



P valve = 

2 

Q 

 

M 

(3) Fluid 100% water, for glycol use, refer to Ethylene Glycol Correction Factors. 


Kv 


36 

M Values 

Model Sizes 6 - 10 13 - 25 26 - 45 50 - 60 

Chilled Water Valve 0.17 0.28 0.51 0.80 

LOW PRESSURE HOT WATER (OPTIONAL EXTRA) 

Refer to Low Pressure Hot Water (Optional Extra) - X & WX Type Models. 



50 

55-60 

CHILLED WATER

CHILLED WATER 

54 

-DF 


SYSTEM PIPEWORK 

SCHEMATIC 

8 

4 

6 

7 

9 

1 

5 

2 

3 

6 

7 




Design should be in accordance with good refrigeration practice to ensure good oil return 

to the compressor under all normal operating conditions to prolong the life of your unit. 

4 

1 Chilled Water Unit 

2 Bleed Valve 

3 3 Way Valve 

4 Binder Point 

5 Double Regulating Valve (Optional Extra) 

6 Shut Off Valve (Supplied by Others) 

7 Customer’s Chilled Water Supply 

8 Regulating Valve (Supply by Others) 

9 Chilled Water Coil



ETHYLENE GLYCOL CORRECTION FACTORS 

For conditions outside those quoted, please refer to Airedale. 

The Use of Glycol Glycol is recommended when a supply water temperature of +5°C or below is required or 

when static water can be exposed to freezing temperatures. 

Q Corrected Cooling Duty = Qw Cooling Capacity 

The effect of glycol in the system has a direct effect upon the Cooling Duty, the Design 

Flow Rate and the unit Pressure Drop. 

To approximate the effect of glycol on unit performance, the following correction factors 

when applied can be used as a guide. 

Where: 

Q = Total Cooling Capacity (TC) (kW) 

Qw = Equivalent Water Cooling Capacity (kW), refer to Cooling Duties, TC (kW) in 

this section. 

V = Corrected Flow Rate. 

T = Temperature difference between Water/Glycol Inlet/Outlet (°C). 

P = Maximum Water/ Glycol Pressure Drop for the indoor unit (kPa). 

Pw = Equivalent Water Pressure Drop for indoor unit (kPa), use the corrected flow 

rate V . Refer to Waterside Pressure Drop (kPa). 


10% / -4°C 20% / -9°C 30% / -15°C 40% / -23°C 

0.980 0.940 0.890 0.830 

V x by 

Corrected Flow Rate = Qw/T Flow Rate 0.242 0.248 0.252 0.251 

P Corrected Pressure Drop = Pw Pressure Drop 1.041 1.083 1.133 1.200 

Example: DF26CW-EZ operating at 7/12, 24°C/45% RH Ambient, 20% Ethylene Glycol 


10% / -4°C 20% / -9°C 30% / -15°C 40% / -23°C 

Q 29.4 kW = Qw 31.3 kW 

0.980 0.940 0.890 0.830 

V x by 

1.55 l/s = Qw/T 

(12 – 7 = 5T) = 

6.26 0.242 0.248 0.252 0.251 

P 86.6 kPa = Pw 80 kPa 1.041 1.083 1.133 1.200 



CHILLED WATER

CHILLED WATER 

56 

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INTERCONNECTING WIRING 

Indoor Controls Only 

INDOOR UNIT 

INDOOR UNIT 

Remote On/Off INDOOR UNIT 

Run/Standby Network 

INDOOR UNIT 

L1 

L2 

L3 

N 

PE 





560 Volt Free Alarm N/O 

561 Volt Free Alarm Common 

562 Volt Free Alarm N/C 

502 Fire Shutdown input 

583 Healthy in N/C Condition 

502 Remote On/OFF 

522 

Common Alarm 

Rx-/Tx- 

Use Awg20/22 twisted pair (with overall shield) 

Rx-/Tx- 

Rx+/Tx+ cable, Belden ref. 8762 (Airedale ref: 017-415), Rx+/Tx+ 

GND or equivalent, for network GND 

INDOOR UNIT 

N + 1 

CABLE INSTALLATION In line with IEE Wiring Regulations, the following should be observed: 

Extra low voltage control cables (ELV) and mains power cable should be segregated 

by a minimum distance of 50mm. 

If cables must cross, it is recommended that they cross at right angles. 

Airedale recommends that ELV cables are screened at one end to 

earthed enclosures.


Outdoor Un its - Air Co oled Cond en sers 


UNIT IDENTIFICATION 

C Condensers 

AIR COOLED CONDENSERS 

11-105 Model Size (Expressed as Nominal Cooling in kW) 

A Aluminium/Magnesium Case 

P Pre-Painted Aluminium Fins (Option) 

-H Horizontal Air Discharge or; 

-V Vertical Air Discharge 

Example C11AP-H 

INTRODUCTION The range is custom designed for a small footprint, low sound level, slimline and 

aesthetically pleasing appearance for use with Airedale’s comprehensive range of 

Precision Air Conditioning units. 

CE Directive 


Airedale certify that the equipment detailed in this manual conforms with the following 

EC Directives: 

Electromagnetic Compatibility Directive (EMC) 2004/108/EC 

Low Voltage Directive (LVD) 2006/95/EC 

Machinery Directive (MD) 89/392/EEC in the version 

2006/427/EC 

Pressure Equipment Directive (PED) 97/23/EC 

To comply with these directives appropriate national & harmonised standards have been 

applied. These are listed on the Declaration of Conformity, supplied with each product. 

Construction Unit cabinets are manufactured from sheet aluminium magnesium unpainted which 

provides a high corrosion resistant finish. 

As standard the unit is unpainted aluminium magnesium self coloured. 

Removable panels are fitted on both the return bend and header end of the condensers to 

facilitate installation and allow access during adjustment and maintenance. 

Available in horizontal or vertical airflow, please specify at order. 

Lifting brackets are supplied as standard. 

Condenser Large surface area coil(s) ideally positioned to optimise airflow and heat transfer, 

manufactured from refrigeration quality copper cross hatched tubes with mechanically 

bonded louvred aluminium fins. 



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58 

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Fan & Motor Assembly Axial flow fan assembly with low noise blades. 




The motor has inbuilt thermal overload protection and the assembly is supplied complete 

with a finger guard for protection. 

The external rotor motor allows the use of a low power output single phase speed 

controllable motor to power the fan. 

Standard air discharge is horizontal or vertical, please specify at order. 

Refrigeration Each unit features as standard: 

Holding Charge of inert gas 

Head Pressure Control Is provided by the indoor unit, refer to Indoor Unit, Head Pressure Control - Intelligent. 


Upgraded Condenser To improve operational efficiency, reduce sound levels or to allow operation in high 

ambient conditions, the next condenser size can be selected. Improved efficiency (EER) 

comes from reduced head pressure, whilst lower sound levels come from reduced fan 

speed at the same design head pressure. 

Phenolic Coated Coils In atmospheres where high corrosion is anticipated phenolic coated aluminium finned 

coils can be supplied. 

Mains Electric Isolator A weatherproof mains isolator is available for on site fitting either directly to the outdoor 

unit or remotely wall mounted. Supplied loose with indoor unit. 

Shut Off Valves Where unit isolation for easier maintenance is required, shut off valves can be supplied. 

Shipped loose with the indoor unit for on site fitment.



DIMENSIONS C11 – C35 

Horizontal Unit (mm) 

B 

(3) 

500 

(2) 

(6) 

(7) 

500 

(2) 

D 

A 

(1) 

(1) 

3000 

(2) 

500 

(2) 

(4) 

(5a) 

(1) 

(5b) 

C 

(1) 

150 E 150 

Condenser A B C D Mass (kg) 

C11 mm 1275 648 550 1212 51 

C15 mm 1275 648 550 1212 63 

C20 mm 1100 648 645 1037 58 

C25 mm 1100 648 645 1037 65 

C35 Mm 1650 1048 645 1587 97 

Vertical Unit (mm) 

B 

(3) 

(6) 

D 

A 

(1) 

(1) 

(4) 

(5b) 

3000 

(2) 

E 

C 

(5a) 

500 

(2) 

500 

(2) 

500 

(2) 

500 

(2) 

(1) Airflow 

(2) Minimum Clearances 

(3) 12.7mm Fixing Holes 

(4) Mains Electric Isolator. 

(5) Service connections 

a) Liquid Outlet 

b) Discharge Inlet 

(6) 40mm Lifting Holes 









Condenser A B C D E F Mass (kg) 

C11 mm 1275 997 700 N/A 467 87 

C15 mm 1275 997 700 467 

C20 mm 1100 1092 900 467 

C25 mm 1100 1092 900 467 

C35 mm 1650 1092 1100 467 



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60 

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DIMENSIONS C45, CS50 – CS65 



C45 mm 1650 1048 645 1587 110 

CS50H-0 mm 2184 1167 1000 2121 132 

CS65H-0 mm 2184 1167 1000 2121 162 






















C45 mm 1650 1092 1100 1587 1040 467 110 

CS50V-0 mm 2184 1090 1167 2124 1107 467 132 

CS65V-0 mm 2184 1090 1167 2124 1107 467 162


DIMENSIONS CS80 - 105 



CS80H-0 mm 3565 1167 1000 1752 208 

CS105H-0 mm 3565 1167 1000 1752 260 



















CS80V-0 mm 3565 1090 1167 1752 1107 501 208 

CS105V-0 mm 3565 1090 1167 1752 1107 501 260 



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General Specification 





C11 C15 C20 C25 C35 

Total Heat of Rejection (1) kW 10.98 16.49 20.18 25.57 30.29 

Dimensions - Horizontal (2) 

Height mm 648 648 848 848 1048 

Width mm 550 550 645 645 645 

Length mm 1275 1275 1100 1100 1650 

Dimensions - Vertical (2) 

Height mm 997 997 1092 1092 1092 

Width mm 700 700 900 900 1100 

Length 

Weight 

mm 1275 1275 1100 1100 1650 

Machine 

Construction 

kg 51 63 58 65 97 

Material/Colour Galvanised Sheet Steel, Epoxy Baked Powder Paint - Light Grey (RAL 7035) 

Condenser Air Cooled - Rifled Copper Tube/Turbulated Aluminium Fins 


Total Face Area m² 0.675 0.675 0.800 0.800 1.600 


Discharge -H Horizontal or -V Vertical (Please Specify at Order) 

Fan & Motor Axial 


Diameter mm 450 450 630 630 630 

Maximum Speed rpm 930 930 900 900 900 


Refrigerant Type R407C (Optional R22) 

Holding Charge Inert Gas 

Coil Volume l 5.3 5.3 6.1 8.1 15.7 

Refrigerant Charge 

Connections 

(3) kg 2.1 2.1 2.3 3.1 6.1 

Liquid Line - Sweat in 1/2 1/2 5/8 5/8 7/8 

Discharge Line - Sweat 


in 5/8 5/8 7/8 7/8 7/8 

Short Case Axial Fan 

Dimensions - Horizontal 

Designed to 75 Pa ESP 

Height mm 648 648 848 848 1048 

Width mm 675 675 735 735 711 

Length 

Dimensions - Vertical 

mm 1275 1275 1100 1100 1650 

Height mm 1112 1112 1162 1162 1162 

Width mm 700 700 900 900 1100 

Length 

Weight 

mm 1275 1275 1100 1100 1650 

Machine kg 61 73 70 77 109 

(1) Nominal data based on 35°C ambient and a 50°C mean condensing temperature and using standard fan. 

(2) Overall dimensions for clearance; refer to Error! Reference source not found. for detail. 

(3) For guidance only.




C45 CS50 CS65 CS80 CS105 

Total Heat of Rejection (1) kW 46.09 45.69 61.70 74.63 99.26 

Dimensions - Horizontal (2) 

Height mm 1048 1167 1167 1167 1167 

Width mm 645 1000 1000 1000 1000 

Length mm 1650 2184 2184 3565 3565 

Dimensions - Vertical (2) 

Height mm 1092 1090 1090 1090 1090 

Width mm 1100 1167 1167 1167 1167 

Length mm 1650 2184 2184 3565 3565 

Weight 

Machine kg 110 132 162 208 260 

Construction 

Material/Colour Galvanised Sheet Steel, Epoxy Baked Powder Paint - Light Grey (RAL 7035) 

Condenser Air Cooled - Rifled Copper Tube/Turbulated Aluminium Fins 


Total Face Area m² 1.60 2.11 2.11 3.63 3.63 


Discharge H Horizontal or V Vertical (Please Specify at Order) 

Fan & Motor Axial 


Diameter mm 630 630 630 630 630 

Maximum Speed rpm 900 900 900 900 900 


Refrigerant Type R407C 

Holding Charge Inert Gas 

Coil Volume L 15.7 10.7 21.5 18.3 36.7 

Refrigerant Charge (3) kg 6.1 4.3 8.5 7.3 14.6 

Connections 

Liquid Line - Sweat in 7/8 3/4 3/4 7/8 7/8 

Discharge Line - Sweat in 7/8 1 1/8 1 1/8 1 3/8 1 3/8 


Short Case Axial Fan Designed to 75 Pa ESP 

Dimensions - Horizontal 

Height mm 1048 1167 1167 1167 1167 

Width mm 711 1000 1000 1000 1000 

Length mm 1650 2184 2184 3565 3565 

Dimensions - Vertical 

Height mm 1162 1130 1130 1130 1130 

Width mm 1100 1167 1167 1167 1167 

Length mm 1650 2184 2184 3565 3565 

Weight 

Machine kg 134 145 175 228 280 


(2) Overall dimensions for clearance; refer to Error! Reference source not found. for detail. 

(3) For guidance only. 



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C11 C15 C20 C25 C35 

Unit Data (1) 



Recommended Mains Fuse A 10 10 10 10 10 

Max Mains Cable Incoming mm² 10 10 10 10 10 

Mains Supply 

Fan - Per Fan 

230V / 1Ph + N / 50Hz 


Motor Size kW 0.15 0.15 0.59 0.59 0.59 




Short Case Axial Fan - Per Fan 

A 2.6 2.6 5.6 5.6 5.6 


Motor Size kW 0.61 0.61 1.40 1.40 1.40 



C45HI CS50 CS65 CS80 CS105 

Unit Data (1) 



Recommended Mains Fuse A 10 10 10 16 16 

Max Mains Cable Incoming mm² 10 6 6 6 6 

Mains Supply 

Fan - Per Fan 

230V / 1Ph + N / 50Hz 


Motor Size kW 0.59 0.63 0.63 0.63 0.63 




Short Case Axial Fan - Per Fan 

A 5.6 5.6 5.6 5.6 5.6 

Quantity kW 2 2 2 3 3 

Motor Size kW 1.4 1.4 1.4 1.4 1.4 




INTERCONNECTING 

WIRING 

C11 - 105 

L1 

Mains Incoming 230V / 1Ph + N / 50Hz


Performance Data 

CAPACITY DATA 

Standard Condenser Fan 

C11 

C15 

C20 

C25 

C35 

C45 

CS50 

CS65 

CS80 

CS105 

Ambient 

Mean Condensing 25°C 30°C 35°C 40°C 45°C 48°C 

Temperature °C Output kW Output kW Output kW Output kW Output kW Output kW 

35 6.90 3.24 - - - - 

40 10.81 6.94 3.26 - - - 

45 15.05 10.93 6.97 3.27 - - 

50 19.31 15.11 10.98 6.99 3.28 - 

55 23.66 19.41 15.18 11.02 7.02 4.78 

35 10.27 4.76 - - - - 

40 16.21 10.37 4.80 - - - 

45 22.28 16.36 10.45 4.83 - - 

50 28.49 22.51 16.49 10.51 4.85 - 

55 34.95 28.81 22.73 16.61 10.57 7.14 

35 12.52 5.79 - - - - 

40 19.63 12.70 5.86 - - - 

45 26.76 19.93 12.84 5.91 - - 

50 34.70 27.23 20.18 12.96 5.95 - 

55 42.79 35.22 27.65 20.42 13.07 8.82 

35 15.98 7.41 - - - - 

40 25.35 16.06 7.44 - - - 

45 35.17 25.47 16.13 7.47 - - 

50 45.22 35.31 25.57 16.18 7.49 - 

55 55.50 45.47 35.47 25.66 16.22 10.99 

35 19.01 8.84 - - - - 

40 29.39 19.02 8.84 - - - 

45 40.15 29.54 19.21 8.84 - - 

50 50.81 40.15 29.66 19.28 8.84 - 

55 61.77 51.08 40.53 29.93 19.34 13.04 

35 28.88 13.47 - - - - 

40 45.10 29.22 13.60 - - - 

45 61.55 45.64 29.47 13.70 - - 

50 78.93 62.34 46.09 29.69 13.79 - 

55 96.91 79.84 63.05 46.51 29.89 20.28 

35 24.56 5.43 - - - - 

40 44.44 25.09 5.74 - - - 

45 63.96 45.02 25.68 6.06 - - 

50 83.54 64.67 45.69 26.35 6.52 - 

55 103.35 84.42 65.49 46.49 27.15 15.41 

35 35.31 10.89 - - - - 

40 60.70 35.83 11.14 - - - 

45 85.43 61.15 36.40 11.46 - - 

50 110.21 85.94 61.70 37.06 12.97 - 

55 135.25 110.83 86.59 62.39 37.85 23.03 

35 40.50 9.63 - - - - 

40 72.57 41.37 10.09 - - - 

45 104.00 73.54 42.33 10.66 - - 

50 135.52 105.17 74.63 43.42 12.00 - 

55 167.37 136.96 106.52 75.90 44.71 25.77 

35 57.17 18.12 - - - - 

40 97.76 57.97 18.53 - - - 

45 137.30 98.44 58.85 19.02 - - 

50 176.90 138.04 99.26 59.87 21.24 - 

55 216.94 177.83 139.02 100.31 61.10 37.44 

(1) Output kW refers to the condenser heat of rejection. 

OPERATING LIMITS 

Standard On/Off Head Pressure Control 

Minimum Ambient Air DB °C -0°C 

Maximum Ambient Air DB °C +48 

Optional Variable Speed Head Pressure Control 

Minimum Ambient Air DB °C -20°C 

Maximum Ambient Air DB °C +48 



OUTDOOR UNIT

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66 

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Precision Air Conditioning




OUTDOOR UNIT

W here to Fin d U s 

LITER ATUR E ORDER COD E 

PART NO: ISSUE DATE 

6259014 (TM E) A 01/03/07 

B 13/04/2010 

C 03/2011 

ITER ATUR E ORDER C ODE 

Head Office: 

Airedale International Air Conditioning Ltd 

Leeds Road 

Rawdon 

Leeds LS19 6JY 

United Kingdom 

Tel: +44 (0) 113 239 1000 

Fax: +44 (0) 113 250 7219 

e-mail: enquiries@airedale.com 

website: www.airedale.com 

V1.3.0 02_2013

Technical Manual Downflow - Airedale International Air Conditioning

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