c. Make tubing connections from the condenser coil
receiver, and tighten the
d. Restart the flow
of dry nitrogen, and braze tubing joints
to the receiver.
e. Install the compressor and
a new falter-drier
in paragraph 5.23.
g. Install the junction box in accordance with the following instructions:
Connect the two wiring harness plugs
to the receptacles
on the rear surface
of the junction box.
(2) Temporarily disconnect the wiring harness lug from the control panel assembly, and install the control
panel assembly on the junction box. Position the temperature control thermostat sensor bulb through the hole and grom-
met in the floor of the air intake chamber and attach in place. Secure with four screws through the corners of the control
panel mounting flange. Reconnect the wiring harness plug to the control panel receptacle.
(3) Insert the end of the circuit breaker reset cable into the hole in the actuator arm connector plate. Slide the
core end fitting over the end of the cable, and tighten the setscrew finger-tight.
(4) Install two loop clamps on the circuit breaker reset cable, leaving at least 1/4inch of sheath below the
bottom loop clamp, Secure with two screws.
(5) Adjust core end fitting to provide 0.12-0.25 inch (3-6 mm) clearance below actuator arm connector
plate when circuit breaker handle is down and cable is fully extended.
h. Install the lower panel, and secure with two panel fastener screws in the upper edge of the panel.
i. Evacuate and charge the refrigeration system
in paragraphs 5.25 and 5.26.
k. Close both service valves, remove gauges, and inatall caps on valves. Install fresh air screen, and secure with
Section XIV. SYSTEM SERVICE VALVES
5.74. Description (See figure 5-8).
Access to the internal refrigeration system is provided by the two system service valves, located just inside the fresh air
screen. The valves are connection points for pressure and vacuum gauges, nitrogen for purging and leak-testing, and for
charging refrigerant into the system.
Visually inspect the service valves for physical damage, broken chains and missing caps. Replace missing or broken parts
or damaged valves. Test for leaks, both with caps snugly screwed on and with caps off, in accordance with paragraph 5.24.
If leaks are detected with caps off, the valves are faulty. If leaks are detected with the caps on, the flare nut connections are
Remove the service valves from the air conditioner in accordance with the following instructions:
a. Remove five screws from the fresh air screen, and remove the screen.
to figure 5-8 for identification
of service valves. Discharge the system
in accordance with paragraph