Technical Data SL 3000 Air Heater CL 2000

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SL 3000 

Technical Data 

Air Heater CL 2000 

... and the klimate is ok

2 

Explanation of formula symbols 

WH cpm VL GW G W 

G D 

G D 

DtLE DtLA tL1 tL2 tW1 tW2 DtW DtW tWm t Wm 

Heating capacity (kW) 

Mean specific heat of the air (kWh/m³ K) 

Incoming air volume (m³/h) 

Water flow volume through heat exchangers (m³/h) 

Q H 

———————————— (m³/h) 

C (t – t ) 

pW W1 W2 

Saturated steam volume (kg/h) 

Q x 3600 

H 

———————————— (kg/h) 

h ”-h ‘ D D 

Infeed air temperature difference (K) 

t – t (K) 

L1 L2 

Temperature of air entering heat exchanger (° C) 

Termperture of air leaving heat exchanger (° C) 

Water temperature at heat exchanger inlet (° C) 

Water temperature at heat exchanger outlet (° C) 

Difference between water inlet and outlet temperature (K) 

t - t W1 W2 

Mean water temperature (° C) 

t + t W1 W2 

———————————— (° C) 

2 

DtWm Termperature difference between mean water temperature and air inlet temperature (K) 

Dtwm t + t W1 W2 

———————————— - t (K) L1 

2 

tD DpW cpL cpW r 

Saturated steam temperature (° C) 

Water system pressure loss through heat exchangers (mbar) 

Spec. Heat of the air (kWh/m³ K) 

Sped. Heat of the water(kWh/kg K) 

Latent heat of evaporation of steam (kJ/kg) 

h ´´ D 

h ‘ D 

DhD Heat content of saturated steam (kJ/kg) 

Heat content of the condensate (kJ/kg) 

(h ´´ – h ´) = r (kJ/kg) 

D D 

V x c x Dt (kW) 

L pL L 

Q H 

Q H 

tL2 t + —————————— 

L1 

c x V pL L 

PWW Pump hot water 

1 Pa 0.01 mbar 

1 kcal/h 1.163 W 

1 kW 1 kJ/s 

1 kJ/h 0.0002778 kW 

1 kcal 4.1868 kJ »4.2 kJ

Table of content Page 

1. Type of heat exchanger 4 

2. Nominal Capacity Table 5 

3. Unit Description 6-7 

4. General Planning Information 8-9 

5. Planning Information and Unit Combinations 10 

6. Dimensions 11 

7. Accessories 12-15 

8. Propulsion distance and correction factors for 

heating capacities 16 

9. Suspension heights for ceiling mounted units 

and depth of air penetration 17 

10. Suspension heights for ceiling mounted units 

with rotational flow outlet 18 

with preheating shutter 19 

11. Technical Data 20-27 

12. Motors 28 

13. Description of control units in modular design 29-30 

14. Description of the modules 31 

15. Description of the speed controllers 32-33 

16. Request for bidding (text sample) 34-38 

17. Questionnaire 39 

With the goal of technical advancement 

we will continuously improve our products. 

3

4 

Key to model numbers 

Kombi Air Heaters are supplied 

in four sizes. The heat exchanger 

fitted for each size may be made 

from steel or copper-aluminium. 

Kombi Air Heater 

for wall or ceiling mounting 

Size: 

Basic unit CL 2000 H x B X T SL 3000 H x B X T 

1 = 436 x 436 x 388 mm 456 x 456 x 388 

2 = 536 x 536 x 393 mm 556 x 556 x 393 

3 = 636 x 636 x 400 mm 656 x 656 x 400 

4 = 836 x 836 x 445 mm 856 x 856 x 445 

Type of heat exchanger: 

1 = zinc-plated steel oval section steel tube with zinc-plated fins, 

16 bar nominal pressure, (CL 413 to PN 12 bar) temperature of 

operating medium: max. 180° C 

3 = Cu/Al 

copper tubes with aluminium fins, 16 bar nominal pressure, 

temperature of operating medium: max. 110° C 

Heat exchanger model 

Generation 3 

Heating medium: 

For steel: 

W = Water 

D = Steam 

P = Hot oil 

For Cu/Al: 

W = Water 

Motor- and blower design: 

1 = 230 V / 50 Hz, voltage adjustable, with thermal relays 

2 = 400 plakatV / 50 Hz, 2-stages, wide wing, with thermal relays 

3 = 400 V / 50 Hz, 3-stages, crescent wing, with thermal relays 

4 = 400 V / 50 Hz, 2-stages, wide wing, with resistor (Ex-protected) 

5 = 400 V / 50 Hz, 2-stages, crescent wing, with thermal relay 

CL/SL 1 3 2 .3 W 3

Nominal Capacity Table 

Nominal Capacity Table 

The figures in the capacity stages indicate the respective 

air intake volume V L in m³/h for the various fan rotational 

speeds. 

Individual models may be 1-, 2- or 3-speed, according to 

the control box used. The associated rotational speeds 

are indicated in the table on page 29. 

The maximum air volume corresponds to single-speed, 

the two largest air volume to two-speed operation. 

5

Unit description 

Klimatec combination air heaters are designed 

for the economic heating and ventilation of larger 

industrial utilised rooms. The units can be 

operated with circulating hot water, steam or 

thermo oil. We offer a wide range of well selected 

add-ons and accessories which enable you to 

find a solution for a large variety of applications. 

Housing 

Model CL 2000 

The two-piece housing is made from sendzimir 

zinc galvanised sheet metal, is protected well 

against outside conditions, and offers a neutral 

colour scheme. Powder coating in various RALcolours 

is available. 

Model SL 3000 

The edges of the housing are designed with 45° 

chamfers which present the unit in a pleasing 

and exquisite design. 

You may choose from our high quality powder 

coating RAL-colours and match the unit to the 

interior design of the room. 

Housing, heat exchanger, and inlet nozzle with 

blower are screwed together to build a robust unit. 

Additional components can be added on without 

problems. The unit is attached with M10 nuts. 

6 

SL 3000 with exhaust vents SL 3000 backside 

Blowers 

We offer two different axial blowers with 

external rotor motors for the air propulsion. 

The housing and crescent wing of the 

crescent wing, silent running blower 

are made from aluminium diecasting. The 

aerodynamic design results in low operating 

noise levels and reduces the mechanical 

running noises. This makes this unit perfect 

for the operation in noise sensitive rooms. 

The aluminium wide wing blower 

has a rotor housing which is made from 

aluminium diecasting and aluminium wide 

wings. This blower is suitable for less 

demanding room applications, i.e. 

warehouses. 

All blowers are balanced in two planes 

according to DIN-ISO 1940 T1, balancing 

quality is G 6,3. The contact protection is 

according to DIN EN 294. 

The variants and technical data to the external 

rotor motors are listed on page 28. 

Heat exchanger 

For the heat transfer you may choose from 

heat exchangers made from copperaluminium 

and steel. 

CL 2000 with exhaust vents

Copper-aluminium heat exchangers 

are made from aluminium fins and copper pipes which 

are mechanically widened and arranged in an alternating 

pattern. The fin sections are enclosed by a flange made 

from zinc galvanised sheet metal. The connecting pipes 

are made from threaded pipe according to DIN 2440. 

They are suitable for PWW with 110 °C and 16 bar 

continuous operating pressure. 

Advantages: 

low weight and high 

heating capacity 

Disadvantages: 

not suited for steam, thermo oil, 

and heavily soiled air 

Steel heat exchangers 

are offered in two designs. 

The continuous zinc galvanised design 

made from round seamless steel pipes with zinc 

galvanised steel sheet metal fins. Homogeny connection 

of pipe and fins for best heat transfer through the inside 

widening. 

Thick walled sheet metal collector with zinc galvanised 

coating for protection. 

These units are released for PWW, PHW 

and thermo oil up to 150° C and 10 bar 

continuous operating pressure. For 

steam up to 150° C and 4.5 bar 

continuous operating pressure. 

The dip-zinc galvanised design 

made from oval-fin-pipes and thick walled welded sheet 

metal collector. 

These units are released for PWW, PHW and thermo oil 

up to 200° C and 26 bar continuous operating pressure. 

For steam up to 200° C and 15 bar continuous operating 

pressure. 

Heating capacity and dimensions for dip-zinc galvanised 

designs per request! 

Advantages: 

Especially suited for installations with high heating 

medium temperatures and heavily soiled air; cleaning with 

high-pressure cleaners and compressed air possible. 

The housing openings for the heating medium connections 

are sealed with rubber gaskets, the onsite connecting 

pipes have to be installed with venting and draining valves. 

The heating medium connections (dimensions see page 

11) and the wiring box for the electrical connection of the 

blower are always located on one side. The heating 

medium connections can be positioned right or left by 

simply turning the Combi-air heater by 180°. The heat 

exchanger always has to be connected in counter flow 

when operating with water. The steam connection is 

basically positioned on top. 

4 1 2 3 

7

Planning Information 

Our additional Service: 

Fast and qualified designing, and job quotation through 

our experienced specialists with our own Klimatec Software 

CAP-CL (see also our questionnaire on page 39). 

Designing of air heating installations with 

PWW-air heaters 

- accurate calculation of the heat consumption 

- determination of the overall air capacity for the air 

heating installation 

- selection of units according to the determined 

power requirements 

- checking the depth of penetration of the air flow 

- air flow deflection of the heated air into 

the heated area 

- controlling the energy supply 

The heat consumption 

should be calculated very carefully following the DIN 4701, 

this is very important when rebuilding old installations. 

It is very important to avoid an over-dimensioning. 

A determined Minimum Air Capacity is required in order 

to achieve a consistent heat distribution. The calculation 

of this required air capacity depends on many different 

factors and we recommend that you use an air circulation 

value per hour which is 3 to 4 times the volume of the 

heated room. 

After you have the determined heat consumption and the 

required Minimum Air Capacity you can preselect the unit 

size and type (table on pages 20-27). 

The following applies: 

The higher the amount of units the more even the heat 

can be distributed! 

The Depth of penetration of the air flow depends on the 

room geometry and can be checked using the installation 

plan. Choose the depth of penetration in a way, that all 

areas of the room can be supplied with warm air. This 

means that the air exit velocity, outlet temperature, and 

unit placing are selected in a way, that the air flow reaches 

the floor (when using ceiling mounted units) or the facing 

wall, or the air flow of another heating unit which is placed 

on the opposite side. 

Rule of thumb: 

Air flow depth of penetration = 3.0 - 3.5 x height of room. 

Since the air exiting temperature of air heating 

installations is always higher than the room temperature 

and the warm air has a lower density, the air flow is 

deflected upwards. Consider this fact when placing the 

units and selecting the air outlets. The air exiting 

temperature should be about 30 to 40°C. 

8 

Please make sure that the air flow is not directed onto 

persons that are within the heated area since even a warm 

air flow over a long period of time can be disturbing. 

Assembly examples with different air outlets: 

When installing the heating unit to the wall choose a 

height, that guarantees an even air and heat distribution 

utilizing an effective depth of penetration. We recommend 

an outlet height of approximately 3-4 m (Fig. 1 a. 8). 

Greater heights should not be selected when installing 

the heating unit to the wall, since there is the risk that the 

heating unit is not capable of supplying enough heat to 

Fig. 1 

Unit with exhaust vents 

or induction shutter horizontal 

Fig. 2 


vertical 

Fig. 3 

Unit with blow nozzle 

Fig. 4 

Unit with air distributor

the entire area. Please avoid to blow warm air directly 

onto equipment or machines. 

The ideal suspension height for ceiling installations is 

between 3.0 and 4.0 m when using unit size 1 and 2 and 

between 4.0 and 5.0 m for unit size 3 and 4 (Fig. 2). 

If you can not avoid greater suspension heights we 

recommend the installation of a blow nozzle, which propels 

the air flow correctly into the desired area (Fig. 3). 

Avoid large temperature differences between air outlet 

and room temperature. We recommend the installation of 

Fig. 5 

Unit with rotational 

flow outlet 

Fig. 6 

Unit with induction 

shutter vertical 

Fig. 7 


for preheating control 

vertical 

Fig. 8 



horizontal 

rotational flow outlets or induction shutters if the usage 

of high heating fluid temperatures i.e. hot water, steam or 

thermo oil does not allow to keep the temperature 

difference small. 

Suspension heights below 3.0 m require air distributors 

to deflect the outlet air laterally (Fig. 4). 

The control system 

of the installation has a major influence on the economics 

of the entire system.The easiest variant is a simple On- 

Off-control for the blowers which works with a preselected 

speed and switches in dependency of the room 

temperature, or an automatic two stage switching with 

the control box ASTRD 2Y/D. 

Especially during the transition periods this control does 

not allow for a continuous blower operation which results 

in an inconsistent air flow and uneven temperature 

distribution. 

We recommend an outside air dependent control of the 

heating circuit supply temperature with the following 

advantages: 

- Lower piping heat losses 

- Long run times of the blowers 

- Small temperature differences between ceiling and 

floor 

- Lower heating costs 

The Klimatec preheating control offers a very economic 

operation. During times of reduced operation and during 

the preheating phase, air with a higher velocity is blown 

into the heated area. The attached servo motor for the 

preheating shutters brings the shutters back into the nominal 

position after the desired temperature is reached. 

This reduces the preheating time after each reduced 

heating phase and results in a significant energy savings. 

9

Planning Information and Unit Combinations 

Klimatec combination air heaters are designed in a way, 

that the blower motor for ceiling installations is placed in 

front (in direction of air flow) of the heat exchanger. During 

blower idle times the uprising convection heat can have 

negative effects on the motor. When operating with heating 

fluid temperatures above 150°C a motorised shutter has 

to be installed or the heating fluid circuit has to be 

interrupted with a solenoid valve (Fig. 8). Even units with 

an outside air connection should be equipped with a 

shutter if the system runs without a mixing air box. This 

prevents cold air from penetrating when the unit is turned 

off. 

Combination air heaters that are running on steam energy 

offer limited regulation capabilities only. These units should 

be regulated via the air system and not by regulating the 

steam circulation system. 

Combination air heaters that are operating with outside 

air must be protected against freezing through the 

installation of an antifreeze monitoring unit. 

10 

Legende 

1. Basic unit 

2. Blower motor 

3. Exhaust vents 

4. Outlet nozzle 

5. Air distributor 

6. Rotational flow outlet 

7. Shutter 

8. Filter box 

9. Mixing air box with servo motor 

10. Flexible connector 

11. Roof opening 

12. Cowl or dome 

13. Eye bolt 

14. Connecting frame 

15. Outside screen 

16. Exhaust vents vertical 

(for preheating control) 

17. Exhaust vents horizontal 

(for preheating control) 

18. Induction shutter 

Ceiling installation 

Wall installation 

Fig. 8 

Unit combinations

Dimensions 

Supply unit CL 2000 SL 3000 Exhaust unit 

Heat- unit type A2 A3 B D E F G H I J L M W/P M D X 

exchanger CL / SL CL SL 

111.3 436 456 416 356 380 90 41 310 314 214 180 R¾’’ R1¼“ /R¾’’ 61 

112.3 436 456 416 356 380 90 41 310 314 229 165 R¾’’ R1½“ /R¾’’ 61 

(sendzimir- 113.3 436 456 416 356 380 90 41 310 314 244 150 R¾’’ R1½“ /R¾’’ 61 

zinc 

galvanised*) 211.3 536 556 516 456 480 90 46 310 434 214 180 R¾’’ R1½“ /R¾’’ 51 

211.3 536 556 516 456 480 90 46 310 434 229 165 R¾’’ R2“ /R¾’’ 51 

213.3 536 556 516 456 480 90 46 310 434 244 150 R¾’’ R2“ /R1’’ 51 

Water = W 311.3 636 656 616 556 580 90 53 310 554 214 180 R¾’’ R2“ /R1’’ 41 

Hotoil = P 312.3 636 656 616 556 580 90 53 310 550 232 162 R1“ R2½“ /R1’’ 43 

Steam= D 313.3 636 656 616 556 580 90 53 310 550 242 152 R1“ R2½“ /R1’’ 43 

411.3 836 856 816 756 780 125 63 345 720 206 186 R1¼“ R2½“ /R1’’ 58 

412.3 836 856 816 756 780 125 63 345 720 222 172 R1¼“ R3“ /R1¼’’ 58 

413.3 836 856 816 756 780 125 63 345 720 237 157 R1¼“ R3“ /R1¼’’ 58 

131.3 436 456 416 356 380 90 41 310 356 229 229 R1’’ - 40 

132.3 436 456 416 356 380 90 41 310 356 223 223 R1’’ - 40 

133.3 436 456 416 356 380 90 41 310 356 244 152 R1’’ - 40 

231.3 536 556 516 456 480 90 46 310 460 230 170 R1’’ - 38 

231.3 536 556 516 456 480 90 46 310 446 215 181 R1’’ - 45 

CU/AI 233.3 536 556 516 456 480 90 46 310 458 242 156 R1’’ - 39 

Water = W 331.3 636 656 616 556 580 90 53 310 558 235 170 R1’’ - 39 

332.3 636 656 616 556 580 90 53 310 544 220 216 R1’’ - 46 

333.3 636 656 616 556 580 90 53 310 558 242 156 R1’’ - 39 

431.3 836 656 816 756 780 125 63 345 754 251 181 R1¼’’ - 41 

432.3 836 656 816 756 780 125 63 345 742 270 195 R1¼’’ - 47 

433.3 836 656 816 756 780 125 63 345 750 278 195 R1¼’’ - 43 

* Dip-zinc galvanised design per request 

11

12 

Accessories 

Gerätebezeichnung Maßtabellen 

Geräteabmessungen 

Outlet shutter 

Outlet shutter with individually 

adjustable louvres. Suitable for both 

horizontal and vertical air flow (for hot 

air propulsion distance see page 15, for 

suspension height of unit see page 17). 

Induction shutter 

The induction shutter reduces through 

secondary air induction the thermal lift 

and increases the propulsion distance 

and air penetration depth. The induction 

shutter is available for manual and 

motorised 

operation. 

Air difuser 

Air difuser with individually adjustable 

air deflection louvres for suspension 

heights below 3 metres to ensure even 

distribution of air in all directions. 

Outlet nozzle 

Outlet nozzle for suspension heights 

above 5 metres to improve propulsion 

distance and thus air distribution down 

to floor level (for suspension of 

units see page 17). 

Rotational flow outlet 

Rotational flow outlet for use with large 

difference in temperature between inlet 

air and ambient air and for suspension 

heights above 5 metres (for suspension 

height of units see page 18). 

Größe 1 2 3 4 

X 433 533 633 833 

Gewicht 1 2 3 4 

kg 2,6 3,5 4,9 7,5 

Größe 1 2 3 4 

A 436 536 636 836 

C 418 518 618 818 

D 356 456 556 756 


kg 5,7 7,0 9,5 14,3 

Größe 1 2 3 4 

K 421 521 621 821 

L 141 181 216 251 


kg 5,0 6,7 10,4 12,5 

Größe 1 2 3 4 

C 418 518 618 818 

F 168 215 223 308 

J 270 320 410 520 


kg 2,6 3,5 4,9 7,5 

Größe 1 2 3 4 

X 433 533 633 833 


kg 3,2 4,3 5,5 8,0



Exhaust vents horizontal 


Exhaust vents with motorised shutters 

for nominal operating / preheating 

operating positions. 

Exhaust vents vertical 


Exhaust vents with motorised shutters 

for nominal operating / preheating 

operating positions. (suspension height 

see page 19) 

Filter box 

Filter box with cartridge filter, EU grade. 

Cartridge filter for external air, mixing 

air or circulating air operation. Cartridge 

filters can be regenerated. 

required minimum space in front of unit 

to allow filter change is 1.5 times depth 

of unit. Replacement filters available. 

Safety shutter 

The safety shutter including 220 v 

servomotor is fitted in the factory to the 

basic unit. A safety shutter should be 

provided to avoid unneccassary heat 

losses when the fan is not running and 

to protect the fan motor against heating 

medium temperatures above 150° C, 

when the motor is switched off. 

Größe 1 2 3 4 

A 436 536 636 836 

C 418 518 618 818 

D 356 456 556 756 


kg 5,7 7,0 9,5 14,3 

Größe 1 2 3 4 

A 436 536 636 836 

C 418 518 618 818 

D 356 456 556 756 


kg 6,4 7,6 9,0 14,0 

Größe 1 2 3 4 

A 436 536 636 836 

B 416 516 616 816 

C 418 518 618 818 

D 256 456 556 756 

N 314 314 412 412 

O 342 342 342 422 


kg 7,6 9,5 13,8 19,0 

Größe 1 2 3 4 

A 436 536 636 836 

C 418 518 618 818 

D 356 456 556 756 

W 210 210 210 235 


kg 6,4 8,0 11,1 16,3 

13

14 



Mixing air box 

Mixing air box with 220 v servomotor 

required for optional operation with 

external air, mixing air or circulating air. 

Elastic connection pipe 

To avoid vibrations being transmitted 

to the building the elastic connection 

pipe should be fitted. 

Connection frame 

The connection frame is required for the 

fitting of accessories or ducting if 

external air is broughtin through the wall. 

External air grille 

The external air grille including anti-bird 

grille and rain-deflecting louvres is 

required for external air supply through 

the wall. 

Größe 1 2 3 4 

A 436 536 636 836 

B 416 516 616 816 

C 418 518 618 818 

D 356 456 556 756 

N 314 314 412 412 

M 346 346 444 444 


kg 7,9 10,4 16,2 20 

Größe 1 2 3 4 

V 420 520 620 820 

D 356 456 556 756 


kg 1,0 1,3 4,2 5,5 

Größe 1 2 3 4 

B 416 516 616 816 

D 356 456 556 756 

T 483 583 683 883 


kg 1,3 1,6 1,8 2,5 

Größe 1 2 3 4 

P 487 583 679 881 

Q 467 563 659 861 

R 392 488 584 786 

S 422 518 614 816 


kg 1,6 2,2 2,9 5,0



Roof cowl 

Roof cowl including anti-bird grille for 

sucking in external air above the roof 

(for figure showing see roof duct). 

Roof duct 

The roof duct is required for bringing 

external air in through the roof. Roof 

sealing to be provided by customer. 

Roof duct 

two-layered 

Inside insulation 20 mm 

Connector bracket 

two pieces for flat and pitched 

roofs 

Wall mounting bracket 

The wall mounting bracket is required 

for the basic unit only without 

accessories. 

Wall mounting bracket 

(extended design) 

The wall mounting bracket is required 

for the basic unit only with accessories. 

Eyebolt for ceiling mounting 

Eyebolts are required for mounting units 

to the ceiling. 

Größe 1 2 3 4 

H 746 846 950 1295 

I 309 335 405 465 

Y 493 593 693 893 


kg 8,0 11,0 45,0 56,0 

Größe 1 2 3 4 

A 436 536 636 836 

C 418 518 618 818 

D 356 456 556 756 

E 484 584 684 884 

G 463 562 663 863 

U 370 470 570 770 


kg 24,0 27,2 38,4 49,8 

Größe 1 2 3 4 

A 438 538 638 838 

Gewicht (kg/Satz) 5.8 

Gewicht (kg/Satz) 12.8 

15

16 

Hot air propulsion distances and correction factors for heating capacities 

Heating capacity correction factors K Q 

Heating capacity changes from temperature differences other than 80/60°C 

and incoming air temperature tL1 = 20°C 

Heating capacity correction factors C Q 

Change in heating capacity with reduction in air capacity 

Propulsion distance in m 

Air capacity correction factor C L 

size 1 

size 2 

size 3 

Propulsion distances for isothermal currents 

Air capacity in m³/h 

size 4 

Example: 

Model: CL/SL 131.3 

Heating capacity: Q H =8,1 kW 

Heating medium: PHW 110/70°C 

Air inlet temperature: tL1= -5°C 

DtWm = tw1 + tw2 

2 

- 

DtWm = 110 + 70 

2 

DtW = tw1 - tw2 

DtW = 110 - 70 = 40K 

tL1 + 5 = 95K 

The correction factor is obtained from the 

intersection of the straights ?t Wm = 105 K 

and Dt W = 40 K. 

The heating capacity correction factor obtained 

from the adjacent graph ist K Q = 1.7. 

Required heating capacity: 

Q X = Q H x K Q 

Q X = 8,1 x 1,7 = 13,77 kW 

Example: 


Nominal air capacity: V L = 2200 m³/h 

Heating capacity: Q H = 8,1 kW 

Air inlet temperature: tL1 = + 20°C 

Incorporation of an air filter and mixing air 

box reduces the air capacity to 1450 m³/h. 

The air capacity correction factor C L is 

obtained from: 

CL/SL = VX 1450 

= = 0,66 

VL 2200 

From the graph the air capacity factor 

C = 0.66 gives a heating capacity factor 

L 

C = 0.79. 

Q 

The new heating capacity ist: 

Q = Q x C X H Q 

Q = 8,1 x 0,79 = 6,39 kW 

X 

Example: 


Nominal air capacity: VL = 2200 m³/h 

In the graph the propulsion distance = 19 m 

is found. At the intersection of unit 

characteristic CL 1.. and Vertical of 

V L = 2200 m³/h 

By fitting a filter air capacity can be reduced 

to 1600 m³/h (see page 18). 

The new propulsion distance found for 

V L = 1600 m³/h is 13.5 m.

Suspension heights for ceiling-mounted units 

and depth of penetration of air 

size 1 

Allowable suspension height for ceiling mounted units with aDt = 20 K 

Depth of air penetration 

size 2 

size 1 

size 2 

size 3 

size 3 

Air capacity in m³/h 

size 4 

size 4 

Outlet shutter 

Outlet nozzle 

Example 

Modell CL/SL 433.3 with outlet nozzle 

(average speed) 

For an air volume fo 5125 m³/h and an 

outlet temperature of Dt = 20 K above 

room temperature the admissible 

suspension height is 6.5 m. 

What is the admissible height for a Dt of 

30 K? 

The formula for other Dt reads 

H HO 20 

Dt 

≈ 

H 6,5 20 6,5 x 0,18165 5,3 

30 

≈ ≈ ≈ 

For Dt = 30 K the admissible suspension 

Height is 5.3 m. 

With radiant ventilation the entire air content 

of a room is placed into motion by the inlet air 

current, resulting in a room-filling flow with air 

velocity at a maximum near the floor and the 

ceiling, diminishing to zero towards the centre. 

This flow pattern applies up to a max. 

room depth of 3.5 x room height (depth of 

penetration). For larger room depths serveral 

flow patterns (rolls) will evolve and these have 

a diameter of approximately room height and 

rotate in opposite directions. These secondary 

“rolls” have only an indirect share in the 

exchange of air in relation to the primary roll. 

In such cases air should be supplied from 

two sides. The same phenomenon occurs with 

underdrafts etc. It should be noted that the 

primary air current is not affected by such an 

obstruction. 

17

18 

Suspension heights for ceiling mounted units with rotational flow outlet 

Unit size 1... 

Suspension height H 0 (m) 

Air capacity VL (m³/h) 









Air capacity VL (m³/h)

Suspension heights for ceiling mounted units with preheating shutter vertical 

Unit size 1... Unit size 2... 











19

20 

Technical-Data - Modell size 1... 

air capacity and additional resistance water resistance 

Example: 

Model size CL 111 Nominal air volume 2200 m³/h 

Point A 

Incorporation of an air filter will reduce the air volume to 

1600 m³/h 

Point B 

Incorporation of an air filter and mixing air box will result in an 

air volume fo 1450 m³/h. 

Point C 

If accessories are fitted the air capacity is found at the 

intersection of the resistance charasteristic with the unit 

Heating capacity and outlet temperatures 

charasteristic. If several accessories are fitted the local 

resistance is the sum of all individual distances. The new 

operating point is found at the intersection of the resulting 

resistance characteristic with the unit characteristic. See 

example. 

F Resistance characteristic for air filter (dust-free) or rotational 

flow outlet (louvre setting below 50°). 

Z Resistance characteristic for mixing air box, safety shutter, 

outlet nozzle, air diffuser, external air grille, roof cowl or 

rotational flow outlet (louvre setting 50 - 90°C). 

Speed stage 3 2 1 3 2 1 3 2 1 

Speed n 1/min 1400 1000 750 1400 1000 750 1400 1000 750 

Air capacity VL m 3 /h 2200 1540 1020 2200 1540 1020 1680 1320 820 

Heat exchanger Steel (sendzimir-zinc galvanised) 

Unit type CL/SL 111.3D CL/SL 112.3D CL/SL 113.3D 

Weight kg 42 47 63 

Water capacity l 4,5 4,8 4,5 

Heating medium 

tL1 QH 

°C kW 

tL2 

°C 

QH 

kW 

tL2 

°C 

QH 

kW 

tL2 

°C 

QH 

kW 

tL2 

°C 

QH 

kW 

tL2 

°C 

QH 

kW 

tL2 

°C 

QH 

kW 

tL2 

°C 

QH 

kW 

tL2 

°C 

QH 

kW 

tL2 

°C 

-15 24,2 18 20,0 24 16,1 32 34,1 31 27,9 39 21,9 49 34,9 47 30,2 53 22,4 66 

-10 23,2 21 19,2 27 15,4 35 32,4 34 26,7 42 21,0 51 3,5 49 29,0 55 21,5 68 

NDD 1.1 bar 0 21,2 29 17,5 34 14,0 41 29,6 40 24,3 47 19,1 56 30,5 54 26,4 59 19,6 71 

15 18,1 39 15,0 44 12,0 50 25,3 49 20,7 55 16,3 63 26,1 61 22,6 66 16,8 76 

20 17,1 43 14,1 47 11,3 53 23,9 52 19,5 58 15,4 65 24,4 63 21,3 68 15,8 77 

-15 32,2 28 26,8 37 21,4 47 45,4 46 37,1 57 29,0 70 46,4 67 40,4 76 30,6 94 

-10 31,2 32 26,0 40 20,7 50 44,0 49 35,9 59 28,2 72 45,0 70 39,1 78 29,1 96 

NDD 4.0 bar 0 29,2 39 24,5 47 19,4 57 41,1 56 33,6 65 26,4 77 42,1 74 36,3 82 27,2 99 

15 26,2 50 21,6 57 17,4 66 36,8 65 30,1 73 23,6 84 37,7 82 32,6 88 24,3 103 

20 25,1 54 20,8 60 16,7 69 35,3 68 28,9 76 22,7 86 36,2 84 31,3 91 23,4 105 

Acoustic pressure*) dB(A) 57 49 39 54 52 38 55 52 43

Heating capacity and air exiting temperature 

Speed stage 3 2 1 3 2 1 3 2 1 

Speed n 1/min 1400 1000 750 1400 1000 750 1400 1000 750 



Unit type CL/SL 111.3W CL/SL 112.3W CL/SL 113.3W 

Weight Kg 42 47 63 


Heating medium tL1 QH tL2 QH tL2 QH tL2 QH tL2 QH tL2 QH tL2 QH tL2 QH tL2 QH tL2 

°C kW °C kW °C kW °C kW °C kW °C kW °C kW °C kW °C kW °C 

-15 18,4 10 15,3 14 12,0 20 26,0 20 21,3 26 16,2 32 29,8 38 25,8 43 17,5 48 

-10 17,6 14 14,5 18 11,0 22 24,6 23 20,2 29 14,9 33 28,2 40 24,3 45 16,2 49 

PWW 90/70 0 15,5 21 12,9 25 9,1 27 21,9 30 17,8 34 12,4 36 25,1 45 20,9 47 13,8 50 

PWW 80/60 

PWW 75/55 

PWW 70/60 

15 12,6 32 9,2 33 6,7 35 17,6 39 12,9 40 9,3 42 19,0 49 15,4 50 10,5 53 

20 11,0 35 8,2 36 6,0 37 15,3 41 11,5 42 8,3 44 16,9 50 13,8 51 9,5 54 

-15 16,0 7 13,4 11 9,6 13 22,6 16 18,5 21 13,0 23 25,9 31 22,0 35 14,5 38 

-10 15,1 10 12,4 14 8,7 15 21,1 19 17,0 23 11,9 25 24,5 33 20,1 35 13,4 38 

0 13,3 18 9,8 19 7,1 21 18,5 25 13,8 27 9,9 29 20,4 36 16,4 37 11,1 40 

15 9,0 27 6,8 28 5,1 30 12,7 32 9,6 34 7,1 36 14,3 40 11,8 42 8,5 45 

20 7,8 30 6,0 32 4,6 34 11,0 35 8,4 36 6,5 39 12,5 42 10,4 43 7,7 48 

-15 14,5 5 12,0 8 8,4 10 20,8 13 16,4 17 11,4 18 21,0 22 17,0 23 11,7 27 

-10 13,3 8 10,4 10 7,2 11 19,7 17 14,8 19 10,3 20 19,3 24 15,4 25 10,8 29 

0 10,8 15 8,6 17 6,2 18 16,0 22 12,0 23 8,6 25 15,8 28 12,9 29 8,7 32 

15 7,4 25 6,0 27 4,6 29 10,4 29 8,3 31 6,5 34 11,0 35 9,4 36 6,9 40 

20 6,3 29 5,2 30 4,1 32 9,3 33 7,3 34 5,8 37 9,6 37 8,5 39 6,2 43 

-15 15,1 5 12,6 9 9,4 12 21,5 14 17,4 19 12,5 22 22,0 24 17,9 26 12,2 30 

-10 14,1 9 11,2 12 8,0 13 20,8 18 15,6 20 11,3 23 20,2 26 16,1 27 11,3 31 

0 11,9 16 9,4 18 6,9 20 17,0 23 13,5 26 9,3 27 16,9 30 13,7 31 9,2 34 

15 8,1 26 6,7 28 5,1 30 11,9 31 9,3 33 7,2 36 12,1 37 10,2 38 7,4 42 

20 7,0 30 5,7 31 4,5 33 10,4 34 8,3 36 6,4 39 10,7 39 9,3 41 6,6 44 

Heat exchanger CU/Al 





°C kW °C kW °C kW °C kW °C kW °C kW °C kW °C KW °C kW °C 

-15 15,7 6 12,7 9 10,3 14 28,9 23 22,8 28 17,6 35 31,3 39 26,5 43 19,2 52 

-10 14,3 9 11,8 12 9,6 17 27,0 25 21,3 30 16,5 37 29,1 40 24,8 44 18,0 53 

PWW 80/60 0 11,9 16 10,0 19 8,2 23 23,1 30 18,3 34 14,3 40 25,3 43 21,5 47 15,6 55 

PWW 75/55 

PWW 70/60 

PWW 55/45 

15 8,8 27 7,3 29 5,9 32 17,0 37 13,8 41 10,9 46 19,4 48 16,5 51 12,0 57 

20 7,9 30 6,5 32 5,2 35 15,2 40 12,4 43 9,8 48 17,4 50 14,9 52 10,8 58 

-15 14,2 4 11,8 7 9,5 12 26,9 20 21,3 25 16,5 31 29,1 35 24,8 39 17,9 48 

-10 13,1 7 10,9 11 8,8 15 24,9 23 19,6 27 15,3 33 27,1 36 23,1 40 16,8 49 

0 10,7 14 9,0 17 7,3 21 21,1 28 16,8 31 13,1 37 23,2 40 19,8 43 14,4 50 

15 7,8 25 6,4 27 5,1 30 15,2 35 12,3 38 9,7 42 17,3 45 14,8 47 10,7 53 

20 6,8 29 5,6 31 4,5 33 13,4 38 10,9 40 8,5 44 15,3 46 13,1 49 9,5 54 

-15 16,1 6 13,0 9 10,2 147 28,4 22 22,5 27 17,2 33 30,5 37 25,9 41 18,2 49 

-10 14,7 9 12,0 12 9,5 17 26,4 24 21,0 29 16,0 35 28,5 39 24,2 43 17,0 50 

0 12,3 16 9,9 19 7,8 22 22,6 30 17,8 33 13,7 39 24,4 42 20,7 45 14,8 52 

15 9,1 27 7,3 29 5,9 32 17,0 37 13,4 40 10,4 44 18,4 47 15,6 49 11,3 54 

20 8,0 31 6,5 32 5,2 35 15,1 40 11,9 42 9,2 46 16,5 48 13,9 50 10,1 55 

-15 12,5 1 10,1 4 8,1 8 22,3 14 17,8 18 13,6 23 24,2 26 20,4 30 14,6 36 

-10 11,0 4 8,9 7 7,1 10 20,4 17 16,1 20 12,4 25 22,2 28 18,7 31 13,5 37 

0 8,6 11 7,2 14 5,8 17 16,7 22 13,2 25 10,2 29 18,2 31 15,4 34 11,1 39 

15 5,7 23 4,8 24 3,8 26 10,9 29 8,8 32 6,9 35 12,3 36 10,5 38 7,6 42 

20 4,8 26 3,9 27 3,2 29 9,2 32 7,4 34 5,8 37 10,4 38 8,9 39 6,4 43 

Acoustic pressure*) dB(A) 57 49 39 54 52 38 55 52 43 

* ) Sound level of 2- and 3-stage crescent wing blowers in 6 m distance in a reflection reduced room. 

The sound level of the 2-stage wide wing blowers is higher by approximately 3 dB(A). Deviations in accordance to 

room acoustics are possible. 

21

22 









example. 

F Resistance characteristic for air filter (dust-free) or 

rotational flow outlet (louvre setting below 50°). 

Z Resistance characteristic for mixing air box, safety 

shutter, outlet nozzle, air diffuser, external air grille, roof 

cowl or rotational flow outlet (louvre setting 50 - 90°C). 

Speed stage 3 2 1 3 2 1 3 2 1 

Speed n 1/min 1400 1000 750 1400 1000 750 1400 1000 750 

Air capacity VL m 3 Heating capacity and outlet temperatures 

/h 3300 2550 1660 3300 2550 1660 2900 2110 1380 






tL1 QH 

°C kW 

tL2 

°C 

QH 

kW 

tL2 

°C 

QH 

kW 

tL2 

°C 

QH 

kW 

tL2 

°C 

QH 

kW 

tL2 

°C 

QH 

kW 

tL2 

°C 

QH 

kW 

tL2 

°C 

QH 

kW 

tL2 

°C 

QH 

kW 

tL2 

°C 

-15 35,0 17 30,6 21 24,2 28 49,3 29 42,7 35 33,4 45 56,9 43 47,1 51 36,2 63 

-10 33,6 20 29,3 24 23,7 32 46,9 32 40,9 38 32,0 47 54,5 46 45,1 54 34,7 65 

NDD 1.1 bar 0 30,6 28 26,7 31 21,2 38 42,9 39 37,0 43 29,2 52 49,7 51 41,2 58 31,7 68 

15 26,1 39 22,8 42 18,1 47 36,7 48 31,8 52 24,9 60 42,1 58 35,2 65 27,1 73 

20 24,5 42 21,5 45 17,1 51 34,6 51 30,0 55 23,4 62 39,8 61 33,2 67 25,5 75 

-15 46,5 27 40,9 33 32,5 43 65,7 44 56,9 51 44,4 64 75,6 63 63,0 74 48,5 89 

-10 45,1 31 39,6 36 31,4 46 63,7 47 55,1 54 43,0 67 73,3 65 60,5 75 47,0 91 

NDD 4.0 bar 0 42,2 38 36,7 43 29,4 53 59,5 54 51,5 60 40,2 72 68,6 70 56,7 80 43,9 95 

15 37,8 49 33,0 53 26,3 62 53,2 63 46,1 69 36,0 80 61,4 78 50,8 87 39,0 99 

20 36,3 53 31,7 57 25,2 65 51,1 66 44,3 72 34,6 82 59,0 81 48,8 89 37,5 101 



Speed stage 3 2 1 3 2 1 3 2 1 

Speed n 1/min 1400 1000 750 1400 1000 750 1400 1000 750 








-15 27,3 10 24,0 13 19,0 19 38,6 20 33,5 24 26,2 32 44,9 31 37,3 38 28,8 47 

-10 25,9 13 22,7 16 18,1 22 36,6 23 31,7 27 24,8 34 42,5 34 35,4 40 26,5 47 

PWW 90/70 0 23,0 21 20,2 24 16,0 29 32,5 29 28,2 33 22,3 40 37,9 39 31,4 44 22,4 48 

PWW 80/60 

PWW 75/55 

PWW 70/60 

15 18,8 32 16,4 34 13,0 38 26,4 39 22,9 42 16,2 44 30,8 47 23,9 49 16,7 51 

20 17,2 36 15,1 38 12,0 42 24,4 42 20,8 44 14,4 46 28,2 49 21,2 50 15,0 52 

-15 23,7 6 20,8 9 16,6 15 33,3 15 29,1 19 22,8 26 39,1 25 32,5 31 23,5 36 

-10 22,3 10 19,6 13 15,6 18 31,6 18 27,4 22 21,3 28 36,9 28 30,6 33 21,5 36 

0 19,6 18 17,1 20 13,6 24 27,4 25 24,0 28 17,3 31 32,5 33 25,6 36 17,7 38 

15 15,3 29 13,4 31 10,6 34 21,6 34 17,1 35 12,2 37 23,5 39 18,0 40 12,9 43 

20 14,0 33 12,2 34 9,0 36 18,4 37 14,8 37 10,6 39 20,2 41 15,7 42 11,5 45 

-15 21,7 5 19,7 8 13,7 10 31,1 13 27,0 17 18,4 18 36,1 22 27,1 23 19,7 27 

-10 20,0 8 17,2 10 11,7 11 29,4 17 24,5 19 16,8 20 33,2 24 24,5 25 18,1 29 

0 16,1 15 14,2 17 10,0 18 23,9 22 19,7 23 14,0 25 27,3 28 20,6 29 14,6 32 

15 11,0 25 9,9 27 7,5 29 15,5 29 13,7 31 10,6 34 19,0 35 14,9 36 11,6 40 

20 9,4 29 8,6 30 6,7 32 13,9 33 12,0 34 9,5 37 16,6 37 13,5 39 10,4 43 

-15 22,5 5 20,9 9 15,0 12 32,2 14 28,7 19 20,4 22 38,0 24 28,8 26 20,8 30 

-10 21,1 9 18,5 12 13,0 13 31,1 18 25,7 20 18,5 23 35,1 26 26,0 27 19,0 31 

0 17,8 16 15,5 18 11,2 20 25,5 23 22,3 26 15,1 27 29,3 30 22,0 31 15,5 34 

15 12,2 26 11,2 28 8,4 30 17,8 31 15,5 33 11,7 36 21,0 37 16,3 38 12,5 42 

20 10,5 30 9,4 31 7,3 33 15,5 34 13,7 36 10,3 39 18,5 39 15,0 44 11,1 44 







-15 24,7 7 21,1 9 16,8 14 37,7 18 31,9 21 24,7 28 50,9 35 40,9 41 30,7 49 

-10 23,0 10 19,6 12 15,7 17 35,1 21 29,8 24 23,1 30 47,3 37 39,3 42 28,8 50 

PWW 80/60 0 19,2 17 16,6 19 13,4 23 30,0 26 25,5 29 19,9 35 41,0 41 33,2 45 25,0 52 

PWW 75/55 

PWW 70/60 

PWW 55/45 

15 14,0 27 12,2 29 9,8 32 22,1 34 19,1 37 15,0 41 31,4 46 25,4 50 19,1 55 

20 12,5 31 10,9 32 8,7 35 19,8 37 17,1 39 13,3 43 28,0 48 22,7 51 17,2 56 

-15 22,8 5 19,4 7 15,6 12 35,0 15 29,5 18 23,0 25 47,2 32 38,2 37 28,7 45 

-10 21,1 8 18,0 10 14,5 15 32,3 18 27,4 21 21,4 27 43,9 34 35,6 38 26,8 46 

0 16,9 15 14,8 17 12,1 21 26,7 23 23,2 26 18,3 32 37,6 37 30,5 42 22,9 48 

15 12,4 26 10,8 27 8,6 30 19,7 32 17,0 34 13,3 38 27,9 43 22,6 46 17,0 50 

20 10,8 29 9,5 31 7,6 33 17,3 35 14,9 37 11,7 40 24,6 44 20,0 47 15,1 51 

-15 24,9 7 21,3 9 16,8 14 37,2 17 31,9 21 24,4 27 49,8 34 40,1 40 29,4 46 

-10 22,8 10 19,6 12 15,5 17 34,6 20 29,6 23 22,7 29 46,6 36 37,5 41 27,5 47 

0 19,3 17 16,5 19 12,9 22 29,6 26 25,1 28 19,2 33 40,0 40 32,2 44 23,7 49 

15 14,3 27 12,2 29 9,6 32 22,2 34 18,8 36 14,5 40 30,0 45 24,0 48 18,1 53 

20 12,6 31 10,8 32 8,6 35 19,6 37 16,7 39 12,9 42 26,8 47 21,5 49 16,2 54 

-15 19,6 2 16,8 4 13,1 8 29,4 11 24,8 13 19,2 18 39,5 24 31,6 28 23,5 34 

-10 17,3 5 14,7 7 11,6 10 26,8 13 22,6 16 17,4 20 36,2 26 28,9 29 21,6 35 

0 14,0 12 11,9 14 9,5 17 21,9 19 18,5 21 14,3 25 29,7 29 23,7 32 17,9 37 

15 9,0 23 7,9 24 6,3 26 14,3 27 12,3 29 9,6 32 20,0 35 16,1 37 12,1 40 

20 7,6 27 6,6 27 5,3 29 11,9 30 10,3 32 8,0 34 16,9 37 13,6 39 10,2 41 





23

24 









example. 






Speed stage 3 2 1 3 2 1 3 2 1 

Speed n 1/min 900 700 500 900 700 500 900 700 500 


/h 5000 3650 2390 5000 3650 2390 4100 3000 1810 

Heat exchanger Stahl (bandverzinkt) 





tL1 QH 

°C kW 

tL2 

°C 

QH 

kW 

tL2 

°C 

QH 

kW 

tL2 

°C 

QH 

kW 

tL2 

°C 

QH 

kW 

tL2 

°C 

QH 

kW 

tL2 

°C 

QH 

kW 

tL2 

°C 

QH 

kW 

tL2 

°C 

QH 

kW 

tL2 

°C 

-15 52,8 16 44,8 22 35,6 29 74,2 29 62,1 36 48,9 46 82,1 45 68,5 53 50,0 67 

-10 50,6 20 42,9 25 34,1 32 71,1 32 59,5 39 46,8 48 78,7 47 65,1 55 47,9 69 

NDD 1.1 bar 0 45,8 27 39,1 32 31,1 39 64,8 39 54,3 44 42,4 53 71,8 52 59,5 59 43,7 72 

15 39,3 38 33,2 42 26,6 48 55,4 48 46,5 53 36,4 60 61,4 60 51,0 66 37,1 76 

20 37,1 42 31,4 46 25,1 51 52,2 51 43,8 56 34,3 63 57,9 62 48,1 68 35,1 78 

-15 70,4 27 59,6 34 47,6 44 99,2 44 83,2 53 65,2 66 108 65 91,3 75 66,6 94 

-10 68,2 31 57,7 37 46,1 47 96,0 47 80,6 56 63,1 69 107 67 88,4 78 64,5 96 

NDD 4.0 bar 0 63,7 38 54,0 44 42,8 53 89,1 53 75,3 61 59,0 73 99,5 72 82,6 82 60,3 99 

15 57,0 49 48,3 54 38,4 63 80,0 63 66,9 69 52,8 81 88,4 79 73,9 88 54,0 104 

20 54,8 53 46,5 58 36,9 66 76,9 66 64,3 72 50,7 83 85,1 82 71,0 90 51,9 105 



Speed stage 3 2 1 3 2 1 3 2 1 

Speed n 1/min 900 700 500 900 700 500 900 700 500 

Air capacity VL m 3 /h 5000 3650 2390 5000 3650 2390 4100 3000 1810 

Heat exchanger Steel (sendzimir-zinc galvanised 






-15 41,5 10 35,2 14 28,2 20 58,7 20 49,1 25 38,6 33 65,8 33 54,4 39 40,1 51 

-10 39,4 13 33,4 17 26,7 23 55,6 23 46,7 28 36,6 36 62,3 35 51,8 41 37,9 52 

PWW 90/70 0 35,1 21 29,7 24 23,7 29 49,4 29 41,5 34 32,6 41 55,4 40 46,0 46 32,6 54 

PWW 80/60 

PWW 75/55 

PWW 70/60 

15 28,4 32 24,2 35 19,3 39 39,9 39 33,7 42 26,1 48 45,0 48 37,4 52 24,1 55 

20 26,3 36 22,5 38 17,4 42 37,1 42 31,0 45 23,1 49 41,5 50 33,7 53 21,7 56 

-15 36,1 7 30,6 10 24,4 15 51,0 15 42,8 20 33,7 27 57,2 27 47,6 32 34,3 41 

-10 34,0 10 28,8 14 22,9 19 48,0 19 40,3 23 31,7 30 53,9 29 44,6 35 31,4 42 

0 29,6 18 25,2 21 20,2 25 41,7 25 35,2 29 28,0 35 47,1 34 39,2 39 25,7 44 

15 23,3 29 19,9 31 14,4 33 33,0 35 27,8 38 19,4 39 37,1 42 28,3 43 18,6 46 

20 21,2 33 17,8 35 12,5 36 29,8 38 23,9 40 16,7 41 32,3 43 24,6 44 16,4 47 

-15 32,8 5 28,3 8 19,7 10 47,1 13 38,7 17 26,5 18 51,0 22 38,6 23 25,8 27 

-10 30,3 8 24,5 10 16,9 11 44,6 17 35,0 19 24,1 20 47,0 24 34,8 25 23,8 29 

0 24,4 15 20,3 17 14,5 18 36,2 22 28,3 23 20,1 25 38,6 28 29,3 29 19,2 32 

15 16,8 25 14,1 27 10,9 29 23,6 29 19,7 31 15,3 34 26,9 35 21,2 36 15,2 40 

20 14,3 29 12,3 30 9,6 32 21,0 33 17,2 34 13,7 37 23,5 37 19,2 39 13,7 43 

-15 34,2 5 29,8 9 21,7 12 48,8 14 41,1 19 29,4 22 53,8 24 40,9 26 27,1 30 

-10 32,0 9 26,4 12 18,8 13 47,1 18 36,9 20 26,5 23 49,7 26 36,9 27 25,0 31 

0 27,0 16 22,1 18 16,1 20 38,7 23 32,0 26 21,7 27 41,4 30 31,3 31 20,4 34 

15 18,5 26 16,0 28 12,1 30 27,0 31 22,1 33 16,9 36 29,7 37 23,2 38 16,5 42 

20 16,0 30 13,5 31 10,5 33 23,6 34 19,7 36 14,9 39 26,2 39 21,2 41 14,6 44 







-15 36,3 6 30,0 9 24,0 14 57,4 18 46,9 22 36,3 29 74,6 37 60,0 42 42,6 52 

-10 33,8 9 27,9 12 22,5 17 53,6 21 43,8 24 34,0 31 69,9 39 56,2 44 40,0 53 

PWW 80/60 0 28,2 16 23,6 19 19,2 23 46,0 26 37,4 29 29,3 35 60,2 42 48,7 47 34,8 55 

PWW 75/55 

PWW 70/60 

PWW 55/45 

15 20,4 27 17,4 29 14,0 32 33,6 34 28,2 37 22,2 42 46,0 47 37,5 51 26,8 58 

20 18,4 31 15,5 32 12,5 35 30,1 37 25,2 40 19,8 44 41,2 49 33,8 52 24,2 59 

-15 33,5 4 27,8 7 22,4 12 53,3 16 43,6 19 33,9 26 69,6 34 56,0 39 39,8 48 

-10 31,0 8 25,8 10 20,7 15 49,5 18 40,2 22 31,5 28 64,8 35 52,2 40 37,3 49 

0 24,8 14 21,1 17 17,3 21 41,5 24 34,1 27 26,9 32 55,1 39 44,9 43 32,0 51 

15 18,2 26 15,4 27 12,3 30 29,9 32 25,0 35 19,6 39 41,1 44 33,7 47 24,1 53 

20 15,8 29 13,5 31 10,8 33 26,4 35 22,1 37 17,4 41 36,4 46 29,9 49 21,4 54 

-15 37,0 6 30,5 9 24,0 14 56,0 17 46,5 22 35,7 28 72,2 36 58,2 41 40,2 49 

-10 33,9 10 28,0 12 22,2 17 52,5 20 43,2 24 33,3 30 67,5 37 54,5 42 37,6 50 

0 28,3 16 23,4 18 18,4 22 45,0 26 36,7 29 28,2 34 58,0 41 46,8 45 32,4 51 

15 21,1 27 17,4 29 13,8 32 33,9 35 27,6 37 21,1 40 43,9 46 35,3 48 25,0 55 

20 18,6 31 15,3 32 12,3 35 29,9 37 24,6 39 19,0 43 39,3 48 31,5 50 22,4 56 

-15 28,9 2 23,9 4 18,7 8 44,6 11 36,3 14 28,1 19 57,6 25 46,3 29 32,5 36 

-10 25,4 5 21,0 7 16,7 10 40,7 13 33,2 16 25,5 21 52,8 27 42,5 31 29,9 37 

0 20,6 12 17,0 13 13,6 16 33,3 19 27,2 21 21,0 25 43,5 30 34,8 33 24,8 39 

15 13,3 23 11,3 24 9,0 26 21,7 27 18,1 29 14,2 32 29,3 36 23,8 38 17,0 42 

20 11,1 26 9,4 27 7,5 29 18,1 30 15,2 32 11,9 34 24,9 37 20,2 39 14,4 43 





25

26 









example. 






Speed stage 3 2 1 3 2 1 3 2 1 

Speed n 1/min 900 700 500 900 700 500 900 700 500 


/h 9800 6600 4950 9800 6600 4950 8000 5550 3720 

Heat exchanger Stahl (bandverzinkt) 


Weight kg 110 130 177 



tL1 QH 

°C kW 

tL2 

°C 

QH 

kW 

tL2 

°C 

QH 

kW 

tL2 

°C 

QH 

kW 

tL2 

°C 

QH 

kW 

tL2 

°C 

QH 

kW 

tL2 

°C 

QH 

kW 

tL2 

°C 

QH 

kW 

tL2 

°C 

QH 

kW 

tL2 

°C 

-15 84,2 11 68,7 16 59,1 21 119 21 96,1 28 82,6 35 154 42 125 52 97,4 63 

-10 80,6 14 65,8 20 56,6 24 115 25 92,2 32 79,1 38 148 45 119 54 93,3 65 

NDD 1.1 bar 0 72,9 22 60,0 27 51,6 31 104 32 84,2 38 71,4 43 135 50 108 58 85,0 68 

15 62,5 34 51,3 38 44,1 42 89,3 42 72,1 48 61,4 52 115 58 92,7 65 72,4 73 

20 59,0 38 48,0 42 41,6 45 84,2 46 68,0 51 57,9 55 109 60 87,5 67 68,3 75 

-15 112 19 91,3 26 79,0 32 160 34 129 43 110 51 206 62 166 74 130 89 

-10 109 23 88,5 30 76,5 36 155 37 125 46 107 54 200 64 161 76 126 90 

NDD 4.0 bar 0 102 31 82,8 37 71,0 43 144 44 117 53 99,6 60 187 69 150 81 118 94 

15 90,9 43 74,2 48 63,7 53 129 54 105 62 89,1 69 166 77 135 87 105 99 

20 87,3 47 71,3 52 61,2 57 124 58 100 65 85,6 71 160 79 129 89 101 101 



Speed stage 3 2 1 3 2 1 3 2 1 

Speed n 1/min 900 700 500 900 700 500 900 700 500 




Weight Kg 110 130 177 




-15 63,8 4 52,1 8 45,0 12 90,6 13 73,5 18 63,0 23 123 31 99,4 38 78,2 47 

-10 60,5 8 49,4 12 42,6 16 85,9 16 69,6 21 59,7 26 117 33 94,2 40 74,1 49 

PWW 90/70 0 53,6 16 44,0 20 37,9 23 76,5 23 61,7 28 53,4 32 104 39 83,7 45 63,7 51 

PWW 80/60 

PWW 75/55 

PWW 70/60 

15 43,6 28 35,8 31 28,0 32 62,4 34 49,3 37 38,8 38 84,3 46 66,6 51 47,0 52 

20 40,4 32 31,4 34 24,7 35 58,0 38 43,4 40 34,0 40 77,9 49 59,0 52 42,2 53 

-15 55,1 2 45,7 6 39,1 8 78,7 9 63,6 14 54,9 18 107 25 86,6 31 67,1 38 

-10 51,9 6 42,6 9 36,9 12 74,2 13 60,2 17 51,3 21 101 28 81,5 34 61,3 39 

0 45,4 14 37,4 17 29,9 18 65,1 20 52,7 24 41,5 25 88,3 33 71,5 38 50,1 40 

15 35,7 26 25,7 27 20,5 27 50,4 30 36,0 31 28,7 32 68,5 41 49,8 42 36,2 44 

20 30,1 29 21,8 30 17,8 30 43,0 33 31,2 34 25,1 35 58,4 42 43,4 43 31,9 45 

-15 62,8 4 51,1 8 41,0 10 89,3 12 70,0 17 55,0 18 99,6 22 71,4 23 53,0 27 

-10 56,2 7 44,4 10 35,0 11 84,6 16 63,3 19 50,0 20 91,5 24 64,5 25 48,8 29 

0 48,0 15 36,7 17 20,0 18 67,8 21 51,1 23 41,8 25 75,4 28 54,2 29 39,4 32 

15 33,0 28 26,5 27 22,5 29 46,3 29 35,5 31 32,0 34 52,5 35 39,2 36 31,3 40 

20 28,0 29 22,2 30 20,0 32 41,4 33 31,1 34 28,4 37 45,8 37 35,5 39 28,2 43 

-15 66,0 5 54,0 9 45,0 12 92,6 13 74,4 19 61,0 22 105 24 75,6 26 55,7 30 

-10 59,5 8 47,8 12 39,0 13 89,0 17 66,6 20 55,0 23 97,0 26 68,2 27 51,3 31 

0 53,0 16 40,0 18 33,4 20 72,8 22 57,8 26 45,0 27 80,8 30 58,0 31 42,0 34 

15 36,4 26 29,0 28 25,0 30 53,0 31 40,0 33 35,0 36 58,0 37 43,0 38 33,8 42 

20 31,4 30 24,4 31 21,7 33 44,6 34 35,5 36 30,0 38 51,1 39 39,2 41 30,0 44 







-15 72,4 6 56,6 10 48,1 13 109 17 84,5 22 71,8 27 142 36 110 42 83,8 50 

-10 67,5 10 52,9 13 44,9 16 102 20 78,2 24 67,1 29 133 38 103 43 78,7 51 

PWW 80/60 0 56,7 17 45,0 20 38,4 22 87,4 26 67,5 29 57,8 34 115 41 89,3 46 68,5 53 

PWW 75/55 

PWW 70/60 

PWW 55/45 

15 40,2 27 33,1 29 28,7 32 63,3 34 50,7 37 43,4 40 87,4 46 69,0 51 53,2 56 

20 35,9 31 29,6 33 25,8 35 56,5 37 45,3 40 38,9 43 78,1 48 62,2 52 48,0 57 

-15 67,1 5 52,5 8 45,2 11 101 15 77,9 19 66,8 24 132 33 103 38 78,4 46 

-10 62,1 8 48,7 11 42,1 14 94,1 18 72,6 22 62,3 26 123 34 95,9 40 73,4 47 

0 50,5 15 40,0 17 35,0 20 77,2 23 61,6 27 53,1 31 106 38 82,2 43 63,1 49 

15 35,7 26 29,4 28 25,6 30 56,1 31 45,0 35 38,7 37 77,8 43 61,9 47 47,8 52 

20 31,5 29 25,9 31 22,5 33 49,5 35 39,6 37 34,0 40 69,3 45 54,9 48 42,5 53 

-15 70,8 6 56,8 10 48,3 13 107 16 84,3 22 70,6 26 135 33 106 40 79,5 46 

-10 67,4 9 52,2 13 44,6 16 101 19 78,3 24 65,8 28 127 35 99,1 41 74,4 47 

0 55,8 16 43,7 19 37,3 22 86,0 25 66,4 29 55,5 32 110 39 85,4 44 64,3 50 

15 41,7 27 32,7 29 27,8 31 64,6 34 49,8 37 41,6 39 83,6 45 64,8 49 48,6 53 

20 37,1 31 29,0 33 24,7 34 57,0 37 44,2 39 37,5 42 74,7 47 57,9 50 44,1 54 

-15 56,9 2 44,8 5 38,1 7 85,0 10 65,5 14 55,6 17 109 24 84,7 29 63,4 34 

-10 50,2 5 39,7 7 33,6 10 77,6 13 59,9 16 50,2 19 100 26 77,8 30 58,3 35 

0 41,1 12 32,2 14 27,4 16 63,5 19 48,9 21 41,6 24 82,7 30 64,1 33 48,8 38 

15 26,8 23 21,4 24 18,6 26 40,9 27 32,6 29 27,9 31 56,0 35 43,7 38 33,6 41 

20 22,0 26 17,8 28 15,6 29 34,2 30 27,4 32 23,4 34 47,0 37 37,2 39 28,6 42 





27

28 

Motors 

Klimatec combination air heaters are equipped with the 

following 

external rotor motors: 

- Three-phase motors 2- or 3-stages 

design with 400 V/50 Hz 

System of protection IP 54, insulation class F, 

Motor protection through thermal relays 

- Alternating current motors 230 V/50 Hz 


Motor protection through thermal relays 

- Three-phase motors 400 V/50 Hz 2-stages 

in Ex-design 


Motor protection through resistor 

We offer multiple stage control units in modular design or 

various speed controllers for the unit operation (see page 

29 to 33). 

Motors in Ex-design require the control units LW 3202.ex1 

or LW 3202.ex2 (see page 30). 

Motor data 

System control MCSR 2000 

The bus technology is especially designed 

for complex installations. 

Please order our extensive unit description 

to learn more about this type of control 

system. 

External rotor motors (speed adjustable, with thermal relays, 400V three-phase current) 

Combi speed U/min Motor- rated current speed U/min Motor- rated current 

Air heater Alu-wide-wing blower power crescent-wing - 2 u. 3 steps power 

Unit Size stage 1 stage 2 KW A stage 1 stage 2 stage 3 KW A 

1 1050 1320 0,14 0,25 700 1050 1380 0,165 0,32 

2 1050 1350 0,33 0,67 700 1050 1380 0,34 0,62 

3 520 860 0,38 0,80 450 700 900 0,38 0,73 

4 610 860 0,89 1,55 450 700 900 0,68 1,35 

External rotor motors (2 stages, explosion protection Ex) 

Combi speed U/min Motor- rated current IA tripping time 

Air heater Alu-wide-wing blower power IN with T3 

Unit Size stage 1 stage 2 KW A sec. 

1 1190 1420 0,14 0,28 3,6 70 

2 910 1320 0,36 0,61 3,6 70 

3 650 860 0,39 0,87 2,2 230 

4 690 900 0,65 1,25 3,2 160 

Drive motors (single speed, with thermal relay, 230 Volt alternating current) 

Combi speed Motor- rated current operating- 

Air heater Alu-wide-wing blower power capacitor 

Unit Size U/min KW A µF 

1 1330 0,19 0,85 5 

2 1270 0,33 1,60 5 

3 900 0.37 1,70 8 

4 880 0,76 3,30 16 

Antriebsmotoren sind über Spannung regelbar.

Description of the control units in modular design 

Control units are designed in modular plastic design for 

wall installation. 

We offer 6 models: 

- LW 3202/LW 3203 for 2 or 3-speeds 

- LW 3202/LW 3203 AH for 2 or 3-speeds 

with additional control for preheating control. 

- LW 3202.ex1 for motors in Ex-design 

Air circulation operation 

- LW 3202.ex2 for motors in Ex-design 

Outside air operation 

The speed adjuster is also the On-Off-switch. 

The system is designed in a way, that the unit can not 

restart on its own once the full motor protection trips and 

after power loss is initiated through the control relay. To 

restart the system after a power loss the main switch 

has to be turned to the “O” position (Fig. 14) or the system 

has to be equipped with the optional automatic restart 

feature. For the operation with Ex-protected motors the 

2-stage control units LW 3202.ex1 for circulation units or 

LW 3202.ex2 for circulation units and outside air units 

(for Open/Close air mixing control) must be installed. 

Does a room temperature control or similar equipment 

interrupt the blower operation, the blower restarts 

Legend control unit 

The control unit (1) contains the following: 

1 Klimatec control unit type LW 3202.1 / LW 3202.1 AH 

2 Speed selector 2 or 3-stages 

3 Fault indicator light 

4 Control fuse 

5 Module M 069 / module M 008 

6 Dummy orifice or module 070 

7 Dummy orifice or module M 082 / module 060 

1) Set of potential free break contacts (1 Opener + 1 

Closer) to complete installation of boiler, time relays, pump 

etc. (max. 2 sets possible). 

automatically. The mixing air box is actuated by a shutter 

servo motor, and with a switch you may select between 

“Circulation” and “Outside air” or continuously adjust the 

air mixing shutter by hand. When operating in “Outside 

air Operation”, and in case of frost danger the motor is 

reversed automatically to close the shutters. The air mixing 

shutter remains in the respective position when the room 

temperature control turns off the blowers. 

The shutter works fully automatic. The shutter opens 

when the blower is running and closes when the blower 

does not operate. In case of power loss the shutter 

remains in the current opening position. 

Fig. 14 

6 5 7 4 3 2 

Dimensions:: 

Width 365mm 

Height 276mm 

Depth 230mm 

Control unit loading 

Control unit Speed stage max. amount of connectible blowers max. amount of connectible mixing air boxes 

for unit size and shutters with shutter servo motor 

SM 220 and NM 220 for unit size 

1 2 3 4 1 2 3 4 

LW 3202.1 2 24 11 10 4 10 10 10 4 

LW 3203.1 3 20 10 8 4 10 10 8 4 

LW 3202.ex1 2 2 2 2 2 - - - - 

LW 3202.ex2 2 2 2 2 2 - - - - 

1 

29

30 

LW 3202.1 and LW 3203.1 

Control unit for 2- or 3-stage blower operation as wall 

mounted box made from plastic with IP 40 system of 

protection. 

The control unit contains the following: 

Speed selector, fault indicator light, control fuse 

Connectors for: 

- Shutter 

- Mixing air box 

- Room temperature control 

- Time switch 

- External blower operation interrupt 

We deliver the following auxiliary equipment: 

Module M 069analog time switch with 7-days-recording 

disc 

Module M 008 digital time switch with weekly program 

Module M 070 Open/Close air mixing shutter control 

Module M 082 continuous air mixing shutter control 

Module M 060 electronic room temperature regulation 

Potential free contacts1) 

Autom. restart after power loss 

Control unit LW 3202.ex1 

Control unit for 2-stage blower operation in Ex-design, 

or as LW 3202.1 

Optional equipment: 

Ex-switching amplifier and thermal motor protection for 

the connection of max. 2 blower motors with resistors. 



- Time switch 



Module M 069analog time switch with 7-days-recording 

disc 

Module M 008digital time switch with weekly program 

Potential free contacts 1) 


1) Set potential free break contacts (1 Opener + 

1 Closer) to complete installation of boiler, time relays, 

pump etc. (max. 2 sets possible) 

LW 3202.1 and LW 3203.1 AH 

Design as LW 3202.1 or LW 3203.1, but with additional 

equipment to control the preheating shutter. 


- Preheating shutter 

- Shutter 

- Mixing air box 


- Time switch 





Module M 082 continuous air mixing shutter control 

Module M 060 electronic room temperature regulation 

Potential free contacts 1) 


Control unit LW 3202.ex2 

Control unit for 2-stage blower operation in Ex-design, or 

as LW 3202.ex1 

Optional equipment: 

Control transformer 230V/24V 



- ex-protected shutter servo motor 

24V (Open/Close-operation) 

- Time switch 



Module M 069 analog time switch with 7-days-recording 

disc 



Potential free contacts1) 

Autom. restart after power loss

Description of the modules 

5.4.1 Description of the modules 

Unit type Short description Function 

M 069 

M 008 

M 070* 

M 082* 

M 060* 

Analog-time switch 

Digital time switch 

Air mixing shutter 

control, Outside air - 

circulation 

Air mixing shutter 

control, continuously 

adjustable 

Electronic room 

temperature regulation 

Attention: 

*These modules can not be retrofitted on site! 

with 7-days-recording disc, run reserve 150h, shortest switching time 2 h 

with weekly program, run reserve 150h, shortest switching time 9 min., 16 

memory slots (8xIn, 8xOut), manual switch, switching position display, work 

days as 1 block, summer/winter selectable. 

The air mixing shutter can be set from circulation to outside air with a 

selector switch. Automatic reversing of the shutter servo motor to close the 

shutters in case of frost danger. 

Continuous adjustment with potentiometer. Automatic reversing of the shutter 

servo motor to close the shutters in case of frost danger. 

Room temperature control and digital time switch as combination unit, electronic 

temperature control, day-temperature settable in range of 10 - 60°C, nighttemperature 

set to fixed temperature of 15°C, complete system including 

room temperature sensor NTC in separate housing, onsite the connecting 

wires have to run in electrical conduit with a maximum wire length of 20 m. 

31

5.5 Speed controller and two stage thermostat 

1. Speed controller STRD 3.1: 

3-stage-speed controller according to VDE 0100/0660, 

system of protection IP 54, for a max. motor power of 4 kW, 

equipped with: 

- Speed selector 

- Power indicator light 

- Control fuse 

- Connectors for room thermostat 

- Thermal relay monitoring 

- Restart lock 

Operating voltage: 400 V 

Control voltage: 230 V 

The speed preselection is made manually. The external 

room thermostat switches the attached units with the 

preselected speed stage off and on. The restart after a 

motor fault and power loss is made by setting the speed 

selector back to zero. 

2. Speed controller STRD 3.1 E: 


system of protection IP 54, for a max. motor power of 4 

kW, equipped with: 






- Autom. restart after power loss 






motor fault is made by setting the speed selector back to 

zero, after power loss the system restarts automatically. 

3. Speed controller STRD 2 Y/D: 















motor fault and power loss is made by setting the speed 

selector back to zero. 

32 

Description of the speed controller and two stage thermostat 

4. Speed controller STRD 2 Y/D E: 

















4.Speed controllers ASTRD 2 Y/D: 

Speed controller for automatic 2-stage operation, design 

according to VDE 0100/0660, system of protection IP 54, 

for a max. motor power of 4 kW, equipped with: 

- On-/Off switch 



- Connectors for room thermostat with sequential 

contact (SRE 2) 





The external room thermostat with sequential contact 

determines the operating level which is required by the 

current room temperature. The restart after a motor fault 

and power loss is made by zeroing the On/Off switch. 

5.Room thermostat SRE 2: 

Room thermostat with sequential contact for 2-stage 

automatic control units, (ASTRD 2 Y/D) 

- System of protection IP 20 

- Adjustment range: 5 - 30 °C 

- Switching difference: ca. 1 K 

- Thermal return 

- Switching current: max. 10(3) A, 250V AC 

Both contacts open together with increasing temperature 

and close with decreasing temperature with a switching 

difference of appr. 2 K after each other. 

Speed Dimensions Speed max. connectible 

controller stage Blowers 

at unit size 

1 2 3 4 

STRD 3.1 A 3 25 11 9 5 

STRD 3.1 E A 3 25 11 9 5 

STRD 2 Y/D A 2 28 12 10 4 

STRD 2 Y/D E A 2 28 12 10 4 

ASTRD 2 Y/D B 2 28 12 10 4 

Dimension: A B 

Width: 225mm 190mm 

Height: 174mm 255mm 

Depth: 123mm 135mm

Description of the transformer speed controller 

5.6 transformer speed controller 

1. Speed controller RTRE 2/4/7 EG 


system of protection IP 54, for a max. current consumption 

of 2, 4 or 7 A, equipped with: 




- Econo transformer according to VDE 0550 


- Connectors for antifreeze thermostat 







preselected speed stage on and off. The restart after a 



2. Speed controller RTRE 2/4/7 EKG 










- Connectors for shutter servo motor Open/Close 








motor fault and antifreeze shutdown is made by setting 

the speed selector back to zero, after power loss the 

system restarts automatically. 

3. Speed controller RTRE 1/2/3/5,2 EG 



of 1, 2, 3 or 5.2 A, equipped with: 













preselected speed stage on and off. 

The restart after a motor fault is made by setting the 

speed selector back to zero, after power loss the system 

restarts automatically. 

3. Speed controller RTRE 4/7/14 E 



















Speed Dimensions Speed max. connectible 

controller stage Blowers 

at unit size 

1 2 3 4 

RTRE 2 EG B 1 2 1 - - 

RTRE 4 EG B 1 4 2 1 1 

RTRE 7 EG B 1 7 3 3 2 

RTRE 2 EKG B 1 2 1 - - 

RTRE 4 EKG B 1 4 2 1 1 

RTRE 7 EKG B 1 7 3 3 2 

RTRD 1 EG A Y/ 7/4 2/1 2/1 1/- 

RTRD 2 EG A Y/D 14/8 5/2 4/2 2/1 

RTRD 3 EG B Y/D 21/12 7/4 7/3 3/1 

RTRD 4 E B Y/D 28/16 10/5 9/5 4/2 

RTRD 5,2 EG B Y/D 37/20 13/7 12/6 5/3 

RTRD 7 E B Y/D 50/28 18/10 16/8 7/4 

RTRD 14 E C Y/D 100/56 36/20 33/17 15/9 

Dimensions: A B C 

Witd: 105mm 190mm 190mm 

Höhe: 180mm 255mm 255mm 

Tiefe: 98mm 135mm 135mm 

33

Request for bidding (text sample) 

34

Klimatec Designing-Service 

Send a Fax with your questions to: 

Sales Office Süd-West Fax 0 65 1/8 27 82-30 email: vertrieb@klimatec150.de 

Mitte Fax 0 64 01/96 00 40 email: wheilmann@gruenberg.klimatec.de 

Süd-Ost Fax 0 36 45 0/3 44-30 email: bwitzmann@kranichfeld.klimatec.de 

West Fax 0 22 8/96 28 00 1 email: klimatec_west@t-online.de 

Süd Fax 0 94 51/94 29 94 email: bbrandhofer@klimatec.de 

Questionnaire: 

If you would like us to prepare a design 

recommendation including a quotation for your 

needs please answer the following questions. 

Customer: 

Contact person: 

Phone: 

Fax: 

Project: 

Room dimensions 

Length m 

Width m 

Height m 

(if possible a sketch on the back side) 

Heat consumption (known) 

QT KW 

QL kW 

Qges kW 

Heat consumption (unknown) 

Inside temperature °C 

Outside temperature (DIN 4701) °C 

Heat transition coefficient: 

k-wall W/m2k 

k-roof W/m2k 

k-floor W/m2k 

k-window W/m2k 

k-door W/m2k 

Heat requirements: 

free venting 

forced venting 

Unit design CL 2000 SL 3000 

Blower: 2 stages 3 stages Ex-design 230 V 

Heater: CU/AI steel 1* steel 2* 1* sendzimir-zinc galvanised 

Heating PWW steam thermo oil 2* dip-zinc galvanised 

medium: 

Heating medium temperature: °C 

Operating pressure: bar 

Unit arrangement and accessories 

Wall installation ceiling installation 

(suspension height m) (suspension height m) 

Consoles short eye bolts 

long 

Exhaust vents Exhaust vents 

Induction shutter Outlet nozzle 

Air distributor 

Preheating shutter horizontal Preheating shutter vertical 

Wall installation frame Rotational flow outlet 

Induction shutter 

Flexible connector Flexible connector 

Filter box Filter box 

Mixing air box Mixing air box 

with motor, Open/Close with motor, Open/Close 


with motor, continuous with motor, continuous 


without motor without motor 

Shutter with motor Shutter with motor 

Outside screen Dome (cowl) 

Roof opening 

Control box/speed controller with accessories 

LW 3202.1 LW 3202.1 AH (preheating control with module M008) 

LW 3203.1 LW 3203.1 AH (preheating control with module M008) 

LW 3202.ex1 LW 3202.ex2 

STRD 2 Y/D STRD 2 Y/DE 

STRD 3.1 

STRD 3.1E transformer speed controller 

ASTRD 2 Y/D RTRD 

RTRE / EG 

Module M069 RTRE / EKG 

(time switch analog) Module M008 

Module M070 (time switch digital) 

(mixing air shutters, Open/Close) Module M082 

Module M060 (mixing air shutters, continuous) 

(elec. control with clock 

and room sensor) 

Potential free contacts automatic restart 

Room thermostat Piccolo 2001 clock thermostat Thermoclock (only with STRD) 

Industrial thermostat KLET 040 Industrial twin room thermostat KLET 04040 

Room thermostat SRE 2 Antifreeze thermostat 

with sequential contact 

(only together with ASTRD 2 Y/D) 

39

This is what we offer: 

Compact units 

with WRG 

ZGW - Juvent 

locking bar 

Grid SLG 

wall elements 

noise protection WE 

Convectors VK 

Central air conditioning units 

KZG/ WZG/ HZG 

Air heaters blower LA 

Klimatec Trier/Rh.-Pf. 

Gottbillstraße 17 

D- 54294 Trier 

Tel. 0049-6 51- 8 27 82-0 

Fax 0049-6 51- 8 27 82-30 

Internet http://www.klimatec.de 

E-mail: Vertrieb@klimatec.de 

Ceiling air heaters 

CL-flair 2000 

Roof blowers 

KDV 

Klimatec Kranichfeld/Thüringen 

Am Bahnhof 5 

D- 99448 Kranichfeld 

Tel. 0049-3 64 50-344-0 

Fax 0049-3 64 50-344-30 

Combination-air heaters 

CL 2000 

Flat units ZG 

MCSR 1000 

TLS

Technical Data SL 3000 Air Heater CL 2000

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