Charging (Service) Valves

TM5-4120-347-14

(4) Remove the two screws and lock washers from the switch to be replaced.

(5) Carefully remove the switch and capillary.

d. Installation.

(1) Insert the capillary through the grommeted hole in the bulkhead.

(2) Connect the flare nut.

(3) Secure the switch with two screws and lock washers.

(4) Carefully coil the capillary line and position so that it will not touch the junction box when it is

reinstalled.

See tags and wiring diagram figure 4-5 and connect wire leads. Remove the tags.

Replace the dehydrator. (See paragraph 5-28.)

Leak test the newly connected joints and all connections in the area.

Install the junction box and control module.

Install the conditioned air supply louver if it was removed.

(10) Install the top front and rear covers.

(11) Evacuate and charge the refrigeration system in accordance with paragraphs 5-13 and 5-14.

The charging (service) valves are located in the rear (compressor/condenser) compartment. They are

accessible through the top rear cover by removing the refrigerant charging valve access cover.

a. Removal. See figure 5-13.

(1) Disconnect power at the power source.

(2) Remove the top rear cover.

(3) Discharge and purge the refrigeration system per paragraphs 5-9 and 5-10.

(4) Remove the two screws from the valve to be replaced.

(5) Disconnect the flare nut from the valve to be replaced and remove the valve from the unit.

b. Installation.

Slip the valve in place and tighten the flare nut.

Secure with two screws.

Replace the dehydrator. (See paragraph 5-28.)

Leak test the newly connected joints and all connections in the area.

Install the top rear cover.

Evacuate and charge the refrigeration system in accordance with paragraphs 5-13 and 5-14.

5-29