Bunn ULTRA-2 manual SERVICE cont COMPRESSOR DANFOSS ULTRA-1Bcont, Relay Terminals

SERVICE (cont.)

COMPRESSOR (DANFOSS) (ULTRA-1B) (cont.)

Removal and Replacement:

Compressor Start Relay: Refer to FIG. 30

1.Remove the terminal cover (4)

2.Disconnect the wires from the compressor start relay.

3.Pull relay (1) off of the compressor pins and discard.

4.Push new relay onto the compressor pins.

5.Refer to Fig. 30 and reconnect the wires.

6.Reinstall terminal cover (4).

GRN

WHI

WHI/ORN to

Overload

Protector

FIG. 30 RELAY TERMINALS

Compressor Run Capacitor: Refer to FIG. 31

1.Remove terminal cover (4).

2.Disconnect the run capacitor leads.

3.Disconnect the run capacitor from the mounting bracket located at the front of the dispenser chassis.

4.Remove run capacitor and discard.

5.Snap new run capacitor on the mounting bracket located at the front of the dispenser chassis.

6.Refer to Fig. 31 and reconnect the wires.

BLK to Compressor

Relay

BLK to Compressor

Relay

FIG. 31 COMPRESSOR CAPACITOR TERMINALS

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 recommended that the dryer also be replaced.

1.Disconnect the tubes from the condenser and the ac- cumulator.

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 compressor assembly over the four studs in the chassis and remove compressor.

6.Install new compressor over the four studs in the dis- penser 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 accumula- tor to the compressor.

9.Reinstall transformer.

10.Evacuate the system.

11.Recharge the 100V system with 6 oz. of Type 404A refrigerant.

Design Pressures: High 330 - Low 60

NOTE: The charging of the system must be done by a li- censed refrigeration repair person.

NOTE: Refer to Wiring Diagrams when reconnecting wires to Compressor, Thermal Overload Protector, Start Relay, and Run Capacitor.

42 41084 021710