TIME DELAY RELAY (F0000RG-2)

TM5-4110-234-14

TO 40R7-5-7-1

(3)

Close the control panel and secure with two screws and lock washers.

(4)

Connect power.

4-34. TIME DELAY RELAY (F0000RG-2)

See figure 4-3.

a. Disconnect power.

b. Remove two screws and lock washers and open the control panel door.

c. Removal.

(1)

Tag and disconnect the wires.

(2)

Remove the screw and lock nut.

(3)

Remove time delay relay.

d. Inspect for cracks, loose, broken, missing or badly corroded terminal connections and evidence of overheating.

e. Installation.

(1)

Secure the relay with a screw and lock nut.

(2)

See the wiring diagram 4-6 and tags and connect wire leads.

(3)

Close the control panel and secure with two screws and lock washers.

(4)

Connect power.

4-35. HIGH PRESSURE CUTOUT SWITCH

See figures 4-2, 4-3 and 4-20.

This switch deenergizes the unit when the compressor discharge pressure reaches 250 psig.

a. Testing installed.

(1)

Disconnect power.

(2)

Remove the two screws and lock washers and open the control panel.

(3)

Check to see that reset button is not tripped (push it in). If the reset button was tripped see troubleshooting

chart. The problem is most likely not in the high pressure cutout switch.

(4)

Tag and disconnect wires.

(5)

Use a continuity tester or multimeter to check for continuity between terminals 1 and 2 on the switch. If there

is continuity, the switch is properly closed. If no continuity is found on the switch, press and release the reset button again

on that switch. If there is still no continuity, that switch must be replaced.

b. Removal. Assuming the above tests have been performed, remove a defective pressure cutout switch as follows:

(1)

Open doors to have access to the left rear of the control panel and the compressor discharge valve.

(2)

Remove the protective cap from the discharging valve stem. Use a refrigerant valve wrench or other suitable

wrench and totally backseat (turn fully counterclockwise) the valve.

Change 1 4-46