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Service manual V1.0 

 

Page 

4

 of 10

 

 

     www.mcedsystems.com

 

 

2.

 

H

ANDLING AND INSTALLATION

 

1. 

Unpack the unit close to the installation area. 

2. 

Cautiously position the unit into the wanted position. For BEF-075, two (2) people are required to lift it. 

NOTE: Do not move the unit without lifting it. Damage could occur to the legs of the unit if pushed. 

NOTE: Do not lift any unit by the refrigeration lines or components. Please use designated handles. 

2.1.

 

P

LACEMENT

 

 

It is not advised to place a power pack on top of a walk-in cooler. 

 

It is not advised to place a power pack outside without protections. 

 

Always make sure a minimum clearance of 24 inches around and above the power pack. This is 
necessary for proper air flow and servicing. 

 

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 pump must have their own dedicated electrical circuit. 

 

2.2.

 

BEF-02

 INSTALLATION

 

1. 

Clamp and insulate both glycol lines to the pump outlet and to the unit return fitting. 

2. 

Clean the reservoir. 

3. 

Fill the reservoir with 

propylene glycol 

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

 

4. 

Place the cover on the unit. 

5. 

Plug the pump in the electrical box on the unit. 

6. 

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

7. 

Inspect the unit for any leakage. 

8. 

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. 

 

 

 

Summary of Contents for BEF-02

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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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