PWS Series Air/Water Heat Exchangers - Pfannenberg

Heat Exchangers 

95 1-866-689-0085 • www.pfannenbergusa.com Edition 10.1

ELECTRO-TECHNOLOGY FOR INDUSTRY 

Water can save energy and 

keep your enclosure cool 

even under harsh conditions 


PWS Series 

Air/Water Heat Exchangers 

The use of Pfannenberg air/water heat exchangers is particularly 

suitable where ambient temperatures are high, the atmosphere 

proves to be particularly oily or aggressive or where cooling units 

(because of filter cleaning and maximum ambient temperatures) 

can be a maintenance concern. 

Their main advantages over other cooling units for control cabinets 

are their maintenance-free operation and extremely low noise 

emission. 

By pulling heat away from the machine and plant and eliminating 

redundant compressors, the end user can realize great energy 

savings and not over tax existing building HVAC systems. 

Ideal areas of use for air/water heat exchangers are wherever 

machines or production processes are cooled by tempered water 

and water is thus already provided. 

Edition 10.1 www.pfannenbergusa.com • 1-866-689-0085 

96


Reduce machine costs by utilizing existing chilled water 

for a 100% complete system solution. 

The combination of air/water heat exchangers and 

chillers offers an ideal system solution for the cooling 

of your processes, machines and controllers. 

Chillers ensure central, economic cooling and provision 

of water as the cooling medium. All cooling tasks in a 

system or machine and also on a control cabinet can 

be accomplished simply and economically via a closed 

pipeline system. 

The special product benefits 

of the PWS series 

Economy 

• system compatible with chillers 

• can be integrated in existing cooling circuits 

• integrated thermostat and solenoid valve for energy efficient 

temperature control 

Environmental Protection 

• very high IP protection, NEMA 3R/4 optional 

• usable under aggressive environmental conditions 

• independent from the ambient temperature at the place 

of installation 

Process reliability 

• high air flow rate and cooling capacity 

• any power losses that occur are not given off into the room 

• integrated temperature monitoring with alarm contact 

Service and ease of mounting 

• compact design 

• seal requires no elaborate reworking of the mounting cut-out 

• maintenance free design 



PWS series air/water heat exchangers for side and door mounting 

Type 

Cooling capacity 

Btu/h (W) 

Rated voltage 

PWS 7102 3241 (950) 115 V / 230 V 




PWS 7332 L 10750 (3150) 115 V / 230 V 


PWS 7702 SL 23885 (7000) 230 V 

PWS 71002 341215 (10000) 230 V 

Dimensions (HxWxD) 

inches (mm) 

19.68 x 7.87 x 5.91 

(500 x 200 x 150) 

19.68 x 7.87 x 3.94 

(500 x 200 x 100) 

37.40 x 15.75 x 4.53 

(950 x 400 x 115) 

37.50 x 15.75 x 7.48 

(950 x 400 x 190) 

53.15 x 15.75 x 7.48 

(1350 x 400 x 190) 

55.12 x 18.11 x 9.25 

(1400 x 460 x 235) 

70.87 x 18.11 x 10.04 

(1800 x 460 x 255) 

70.87 x 23.62 x 12.40 

(1800 x 600 x 315) 

Approvals 

UL cUL GOST CSA CE 

available 

pending 

Page 

101 

101 

103 

103 

105 

107 

109 

111 


Accessories 

Internal enclosure and panel fans 

Distribution of cold air inside the control cabinet 

Product 

Part number 

PFP 100 4" panel fan 115 V 18103000000 

PFP 100 4" panel fan 230 V 18103000001 

PFP 200 6" panel fan 115 V 18103000002 

PFP 200 6" panel fan 230 V 18103000003 

External condensate evaporation system- KV DTX 

External condensate evaporator for the accumulated condensed water 

Suitable for ... 

Part number 

115 - 230 V 50 / 60 Hz 18314000001 

Condensate bottle 

External container for collecting the accumulating condensed water 

Suitable for ... 

Part number 

all units 18314000100 

Device-side water connection with G 3/8” internal thread 

some variable connection possibilities: 

• hose nozzle 3/8“ x 12 with o-ring 

• double nipple 3/8“ 

• quick-coupling 12 mm 

• quick-coupling 10 mm 

Suitable for all heat exchangers - part number available upon request 


98


PWS 7062 

Air/Water Heat Exchanger 

Cooling capacity 600 W (3242 Btu/h) 




• Two performance classes, cut-out compatible 

• Completely installable or mountable externally and internally 

• Maintenance free design 

• Easy to mount seal, no elaborate reworking of the mounting cut-out 

• Integrated thermostat and solenoid valve for temperature control 

• Integrated temperature monitoring with alarm contact 

Data PWS 7062 PWS 7102 Unit 

Part number RAL 7035 (Lt. Gray) 12050610055 12050617055 12051010055 12051017055 

Rated voltage ± 10 % 

AC 50 Hz / 60 Hz AC 60 Hz AC 50 Hz / 60 Hz AC 60 Hz 

230 115 230 115 V 

Cooling performance at 200 l/h W10/A35 2047 (600) 3242 (950) 

Power consumption W10/A35 68 / 70 60 82 / 84 82 W 

Current consumption W10/A35 0.35 / 0.38 0.65 0.35 / 0.4 0.69 

Starting current W10/A35 1.5 / 1.8 1.3 1.7 / 1.95 1.4 

Unimpeded airflow (free flow) internal 440 570 CFM 

Fuse (Recommended) 4 A 

Connection 

electro 

fluid 

spring-type terminal included with plug 

13 mm hose nozzle; other connectors on request 

Noise level (according to EN ISO 3741) ≤48 dB(A) 

Weight (without packaging) 17 (6) 13 (7.5) lb (kg) 

Ambient temperature range > + 34 … + 158 / > + 1 … + 70 

Control range (adjustable) + 47 … + 122 / + 8 … + 50; factory setting + 95 / + 35 

Water outlet temperature > + 34 … + 95 / > + 1 … + 35 

Permissible operating pressure max. 10 bar 

Duty cycle 100 % 

Condensate management 

System of protection 

according to EN 60529 

Design 

condensate drain 

NEMA 12 towards the electrical enclosure if used as intended by the manufacturer 

NEMA 3R/4 optional 

galvanised steel/electrostatically powder-coated (200 °C); on request: stainless steel 

copper pipe with aluminum fins; stainless steel piping on request 

Btu/h 

(W) 

A 

°F / °C 

Accessories Piece Part number Information on page 

External condensate evaporation system 1 18314000001 100 

Condensate bottle 1 18314000100 100 

NEMA 3R/4 Gasket Kit 1 800700003 - 

Approvals see page 100 



Cooling Capacity Performance Curve 

PWS 7062 PWS 7102 


Pressure Loss Performance Curve 


C 

Z 

X 

C 

Dimension 

Dimensions 


inches (mm) 

inches (mm) 

Z 

X 

D 

D 

X 7.87 (200) 

Y 19.68 (500) 

B 

B 

Z 3.94 (100) 5.91 (150) 

A 17.32 (440) 

B 6.69 (170) 

Y 

Y 

A 

A 

E 

E 

C 5.91 (150) 

D .39 (10) 

E 18.31 (465) 

F .59 (15) 

Mounting holes Ø 8 mm 

F 

F 


100








• Two performance classes, cut-out compatible 






Data PWS 7152 PWS 7332 Unit 

Part number RAL 7035 (Lt. Gray) 12051510055 12051517055 12053010055 12053017055 


AC 50 Hz / 60 Hz AC 60 Hz AC 50 Hz / 60 Hz AC 60 Hz 

230 115 230 115 V 

Cooling performance at 200 l/h W10/A35 5118 (1500) 10748 (3150) 

Power consumption W10/A35 125 / 182 186 295 / 385 453 W 

Current consumption W10/A35 0.55 / 0.75 1.5 1.3 / 1.7 4.1 

Starting current W10/A35 2 / 2 3.9 5.8 / 6.6 8.62 


Fuse (Recommended) 4 6 6 16 A 

Connection 

electro 

fluid 



Noise level (according to EN ISO 3741) 53 54 dB(A) 

Weight (without packaging) 46 (21) 51 (23) lb (kg) 









Design 

housing 

heat exchanger 






Btu/h 

(W) 

A 

°F / °C 













Dimension 

Dimensions 


inches (mm) 

inches (mm) 

Z 

X 

D 

X 15.75 (400) 

A 

Y 37.40 (950) 

Z 4.53 (115) 7.48 (190) 

A 11.02 (280) 

B 18.23 (463) 

C 4.41 (112) 

Y 

B 

E 

D 1.46 (37) 

E 35.59 (904) 

F 13.39 (340) 

F 

C 

G 11.02 (280) 


G 


102


PWS 7332 L 



• Long passage of air 

• compatible with DTS 9x41 air conditioner unit series 





Data PWS 7332 L Unit 

Part number RAL 7035 (Lt. Gray) 12053010063 12053017063 


AC 50 Hz / 60 Hz 

Cooling performance at 200 l/h W10/A35 10748 (3150) 

AC 60 Hz 

230 115 V 

Power consumption W10/A35 295 / 385 453 W 

Current consumption W10/A35 1.3 / 1.7 4.1 

Starting current W10/A35 5.8 / 6.6 8.62 

Unimpeded airflow (free flow) internal 982.92 CFM 

Fuse (Recommended) 6 16 A 

Connection 

electro 

fluid 



Noise level (according to EN ISO 3741) 54 dB(A) 

Weight (without packaging) 77 (35) lb (kg) 









Design 

housing 

exchanger 






Btu/h 

(W) 

A 

°F / °C 








PWS 7332L 




Dimension 

Dimensions 


inches (mm) 

Z 

X 

Z 

X 

B 

D 

E 

X 15.75 (400) 

Y 53.15 (1350) 

Z 7.48 (190) 

AA 

E 

A 27.56 (700) 

B 12.40 (315) 

C 8.66 (220) 

D 12.40 (315) 

E 17.72 (450) 

Y 

Y 

B 

FF 

F 20.08 (510) 

G 11.42 (290) 

H 13.78 (350) 

Mounting holes Ø 8 mm and cut-out radii R20 

D 

C 

H 

C 

G 

G 

H 

I 


104





• Long passage or air 






Data PWS 7502 Unit 



AC 50 Hz / 60 Hz 


AC 60 Hz 

230 115 V 

Power consumption W10/A35 295 / 385 384 W 

Current consumption W10/A35 1.3 / 1.7 3.45 

Starting current W10/A35 5.8 / 6.6 8.33 

Unimpeded airflow (free flow) internal 982.92 CFM 


Connection 

electro 

fluid 













Design 

housing 







Btu/h 

(W) 

A 

°F / °C 













Dimension 

Dimensions 


inches (mm) 

Z 

X 

D 

X 18.11 (460) 

Y 55.12 (1400) 

Z 9.25 (235) 

A 

E 

A 17.32 (440) 

B 28.01 (711.5) 

C 7.09 (180) 

D .79 (20) 

E 17.91 (455) 

F 16.54 (420) 

Y 

B 

E 

G 13.78 (350) 


F 

C 

E 

G 


106


PWS 7702 SL 

Slim Line Air/Water Heat Exchanger 







Data PWS 7702 SL Unit 



AC 50 Hz / 60 Hz 


400 3Ø 230 V 

Power consumption W10/A35 550 / 790 520 / 860 W 

Current consumption W10/A35 0.8 / 0.95 2.4 / 3.2 

Starting current W10/A35 3.0 / 3.8 9.2 / 12 


Fuse (Recommended) 5.89 A 

Connection 

electro 

fluid 













Design 

housing 







Btu/h 

(W) 

A 

°F / °C 













Dimension 

Dimensions 


inches (mm) 

X 18.11 (460) 

Y 70.87 (1800) 

Z 

X 

I 

A 

D 

E 

Z 10.04 (255) 

A 20.87 (530) 

B 35.06 (865) 

F 

C 9.06 (230) 

D .59 (15) 

E 17.42 (442.5) 

Y 

B 

F 17.42 (442.5) 

G 

G 17.42 (442.5) 

H 17.42 (442.5) 

I 16.42 (417) 

J 13.78 (350) 

C 

H 


J 


108










Data PWS 71002 Unit 



AC 50 Hz / 60 Hz 


AC 60 Hz 

400 3Ø 230 V 

Power consumption W10/A35 1050 / 1450 820 / 1200 W 

Current consumption W10/A35 1.9 / 2.2 3.8 / 5.2 

Starting current W10/A35 8.3 / 9.4 13.5 / 18.8 

Unimpeded airflow (free flow) internal 3472.61 3678.61 CFM 


Connection 

electro 

fluid 




Weight (without packaging) 161 (73) 165 (75) lb (kg) 

Ambient temperature range > +34 … +158 / > +1 … +70 




Duty cycle 100% 




Design 

housing 







Btu/h 

(W) 

A 

°F / °C 













Dimension 

Dimensions 


inches (mm) 

X 23.62 (600) 

Y 70.87 (1800) 

Z 12.40 (315) 

A 19.68 (500) 

B 19.68 (500) 

Z 

X 

L 

B 

A 

E 

F 

G 

C 30.51 (775) 

D 13.78 (350) 

E .59 (15) 

Y 

C 

H 

F 10.63 (270) 

H 

G 10.24 (260) 

H 14.57 (370) 

I 9.84 (250) 

D 

I 

J 5.91 (150) 

J 

K 17.72 (450) 

L 20.87 (530) 


K 

L 


110

PWS Series Air/Water Heat Exchangers - Pfannenberg

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