Quantcast Removal - TM-5-4120-347-140101

 

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TM-5-4120-347-14 Air Conditioner Horizontal Compact 9 000 BTU/HR 208 Volt 3 Phase 60 Hertz Manual
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Figure 4-32. Evaporator Fan, Housing and Motor
TM5-4120-347-14
a. Removal.
Disconnect input power from the air conditioner before performing maintenance on any part of the
electrical system. The voltages used can be lethal.
(1) Disconnect power at the power source.
(2) Remove the top rear cover.
(3) Disconnect connector plug P7.
(4) Loosen all clamps holding the cable assembly.
(5) Remove the two screws and lock washers and carefully remove the condenser fan thermostatic switch
and plug assembly from the unit.
b. Inspect.
(1) Check the connector for loose, damaged or missing pins.
(2) Check the wires for loose connections, cuts, frayed insulation and broken wires.
c. Test.
(1) The switch is normally open. It closes on temperature rise between 95 and 105o F (35 and 41 C).
(2) Check for continuity between the pins of the connector. There should be no continuity when the
temperature is below 95 F (35o C).
(3) Tape an accurate thermometer to the face of the thermostat. Hold a light bulb, heat gun or similar safe
heat producing device near the surface of the thermostat face. Check for continuity at connecter pins when
temperature rises to 95 to 105 F (35 to 41 C).
(4) Replace the thermostat switch if either of the above tests show a switch failure.
d. Install
(1) Slip the plug and thermostatic switch through the case and secure the switch with two screws and
lock washers.
(2) Connect the cornnector plug P7 (See wiring diagram figure 4-5.)
(3) Reinstall clamps to secure wires in place.
(4) lnstall the top rear cover.
(5) Connect power at the power source.
The evaporator fan, housing and motor are located behind the return air louver assembly. (See figure 4-32.)
a . Access
4-65

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