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Service manual V1.0 

 

Page 

5

 of 10

 

 

     www.mcedsystems.com

 

 

2.3.

 

BEF-04,

 

BEF-05

 AND 

BEF-075

 INSTALLATION

 

1. 

Remove the upper deck from the unit. 

2. 

Clean the reservoir and remove any dust or contaminant. 

3. 

Connect the overflow fitting to a proper external reservoir or drain. 

4. 

Clamp and insulate both glycol lines to the pump outlet and to the unit return fitting. Repeat this step 
for each pump. 

5. 

Fill the reservoir with 

propylene glycol 

solution (mixed 2 parts water to 1 part glycol).

 

6. 

Place back the upper deck on the unit. 

7. 

Plug the unit and the pump to an appropriate electrical circuit. This task should be executed by a 
professional electrician in compliance with national electrical standards. 

8. 

Inspect the unit for any leakage. 

9. 

Glycol temperature should be adjusted to 28°F. Set point should be reached within a few hours. 

NOTE: To adjust the glycol temperature, please see section 2.4. 

 

2.4.

 

A

DJUSTING THE TEMPERATURE CONTROLLER

 

Instructions for all models 

 

 

 

 

Содержание BEF-02

Страница 1: ...Service manual V1 0 Page 1 of 10 www mcedsystems com SERVICE MANUAL GLYCOL CHILLERS BEF 02 BEF 04 BEF 05 BEF 075 Version 1 0 Release June 2017 All rights reserved...

Страница 2: ...troller 5 3 Maintenance 6 4 Servicing 6 4 1 Replace circulation pump BEF 02 6 4 2 Replace circulation pump BEF 04 BEF 05 BEF 075 6 4 3 Replace motor of circulating pump BEF 04 BEF 05 BEF 075 7 4 4 Rep...

Страница 3: ...NEMA 5 15P NEMA 5 15P NEMA 5 15P NEMA 5 15P Amps Running 7 0 12 14 16 17 19 21 Refrigerant R134a R134a R134a R134a Refrigerant capacity oz 9 0 17 0 11 0 18 0 Normal refrigeration operating pressure PS...

Страница 4: ...cing Ambient temperature ranges from 60 F to 85 F for all models Make sure the unit is installed in a properly ventilated area Unit must be connected to a ground fault circuit breaker Power pack and p...

Страница 5: ...each pump 5 Fill the reservoir with propylene glycol solution mixed 2 parts water to 1 part glycol 6 Place back the upper deck on the unit 7 Plug the unit and the pump to an appropriate electrical cir...

Страница 6: ...ectrical circuit 2 Pinch the glycol lines to avoid any dumping 3 Disconnect the glycol line from the pump 4 Remove the pump mounting screws 4 5 Replace the defective circulation pump by a new one 6 Ti...

Страница 7: ...ire connectors using a small slotted screwdriver 3 Slide off the plastic retainer by applying pressure with a small screw driver on each side Pull out the temperature controller of the housing 4 Conne...

Страница 8: ...tallic part Refrigerant leak Perform a leak test and repair the leak Vacuum flush the refrigerant and fill with proper quantity Has to be performed by a certified refrigeration expert Dirty condenser...

Страница 9: ...om 6 ELECTRICAL WIRING DIAGRAMS NEVER modify the electrical circuit of the unit If required ONLY use 14 AWG wire Electrical repairs must be done by a professional electrician 6 1 ELECTRICAL DIAGRAM BE...

Страница 10: ...KA7437YXAXA X BEF 075 Condensing unit AJA7455YAADS X BEF 02 Relay K71 36 X BEF 04 Relay K71 41 X BEF 05 Relay K71 02 X BEF 075 Relay K71 13 X BEF 02 Start capacitor K146 55 X BEF 04 Start capacitor K1...

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