Bunn JDF-4D Manual De Usuario

SERVICE (CONT.)

Compressor (Cont.)
Removal and Replacement:

Compressor Relay: Refer to FIG. 8

1. Remove the terminal cover (1)

2. Disconnect the white wire from the compressor

relay.

3. Pull relay (2) off of the compressor pins and discard.

4. Push new relay onto the compressor pins.

5. Refer to Fig. 9 and reconnect the wires.

6. Reinstall terminal cover (1).

Compressor Thermal Overload Protector: Refer to

FIG. 8

1. Remove terminal cover (1).

2. Disconnect the BLU/BLK wire of the harness from

the thermal overload protector.

3. Remove relay (2).

4. Remove overload protector (3) and discard overload

protector.

5. Install new overload protector (3) on to the com-

pressor.

6. Install relay (2).

7. Refer to Fig. 10 and reconnect the thermal overload

protector wires.

8. Reinstall terminal cover (1).

Compressor Assy:

NOTE: Before removal of any refrigeration component

the refrigerant in the system must be reclaimed by a

licensed refrigeration repair person.

NOTE: When replacing the compressor it is recom-

mended that the dryer also be replaced.

1. Disconnect the tubes from the condenser and the

accumulator.

2. Disconnect the compressor wiring harness from

the dispenser main wiring harness.

3. Remove the four .25-20 keps nuts and washers

securing the compressor to the chassis. Set nuts

and washers aside for reassembly.

4. Disconnect and remove the transformer.

5. From the right side of the dispenser lift the com-

pressor assembly over the four studs in the chassis

and remove compressor.

WHI Wire

BLU/BLK Wire

FIG. 9 RELAY TERMINALS

FIG. 10 THERMAL OVERLOAD PROTECTOR

TERMINALS

Plugs into Relay

6. Install new compressor over the four studs in the

dispenser chassis with the fill valve to the right side

of the dispenser.

7. Secure compressor to the dispenser chassis using

four .25-20 keps nuts and washers.

8. Reconnect tubes from the condenser and the ac-

cumulator to the compressor.

9. Reinstall transformer.

10. Evacuate the system.

11. Recharge 120V and 230V system with:

JDF-2S - 9 oz. Type R134A refrigerant.

Design Pressures: High 255 - Low 36 psi

JDF-4S & 4D - 10 oz. Type R134A refrigerant.

Design Pressures: High 335 - Low 88 psi

NOTE: The charging of the system must be done by a

licensed refrigeration repair person.

NOTE: Refer to Wiring Diagrams when reconnecting

wires to Compressor, Thermal Overload Protector and

Start Relay.

49179 110613