Technical Manual Downflow - Airedale International Air Conditioning

AIR & WATER COOLED
28
-DF
Precision Air Conditioning
Technical Manual : 6259014 v1.3.0 02_2013
Precision Air Conditioning
General Specification - Air & Water Cooled Models
MECHANICAL DATA
DF15X-EZ DF17X-EZ DF22X2-EZ DF25X2-EZ
DF15WX-EZ DF17WX-EZ DF22WX2-EZ DF25WX2-EZ
Standard Matched Condenser - X
Capacity
C25 C35 C45 C45
Nom Cooling (Gross) - X (1) kW 15.7 19.0 24.7 25.4
Nom Cooling (Gross) - WX (2) kW 16.2 29.2 24.7 25.5
Total Heat of Rejection - WX (2) kW 21.2 25.6 32.6 33.4
Capacity Steps 1 1 2 2
Fan Gain kW 1.20 1.20 1.31 1.31
Dimensions - H x W x D mm 1940 x 990 x 670 1940 x 990 x 670 1940 x 1310 x 670 1940 x 1310 x 670
Weight - Machine - X kg 235 238 308 308
Weight - Machine / Operating - WX (3) kg 262 / 264 268 / 270 341 / 344 341 / 344
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 2.0 2.5 2.5 2.5
Fan & Motor Centrifugal Direct Drive- Designed to 25Pa ESP
Quantity / Motor Size kW 1 x 1.10 1 x 1.10 2 x 0.60 2 x 0.60
Maximum ESP Pa 120 34 194 43
Nominal Airflow m³/s 1.20 1.40 1.70 2.00
Compressor - Scroll Single Tandem
Quantity 1 1 2 2
Oil Charge Volume (Total) l 1.85 1.65 2.72 2.72
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 4.1 4.1 5.1 5.1
Liquid (Sweat) - X in 1/2 1/2 5/8 5/8
Discharge (Sweat) - X in 3/4 3/4 7/8 7/8
Water Inlet / Outlet - WX mm 22 28 28 28
Condensate Drain Hose mm 19 19 19 19
Filtration Disposable to BS EN 779 - G4 - 50mm
Quantity
OPTIONAL EXTRAS
Upgraded Condenser Match - X
2 2 3 3
Nom Cooling (Gross) (1) kW 16.2 19.2 24.5 25.5
Electric Heating (Total)
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
Condensate Pump
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 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
Low Pressure Hot Water Copper Tube/Aluminium Fin
Capacity Gross (5) kW 12.50 13.30 16.10 16.60
Water Flow (Nominal) l/s 0.28 0.30 0.36 0.37
LPHW Connection Sizes
Threaded Connection - WX
mm 22 22 22 22
Brass Male Taper in 3/4 1 1 1
(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.