Quantcast TEMPERATURE SELECTOR SWITCH S3 REPLACEMENT, INSPECTION, AND TESTING

 

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INSTALLATION - TM-9-4120-428-140134
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TM-9-4120-428-14 Air Conditioner Horizontal Compact 9000 BTU/HR 208 Volt Three Phase 400 Hertz Model No. F9000H-4SPFI Manual
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INSTALLATION - TM-9-4120-428-140136
TM 9-4120-428-14
UNIT MAINTENANCE
AIR CONDITIONER, HORIZONTAL, COMPACT
TEMPERATURE SELECTOR SWITCH S3 REPLACEMENT, INSPECTION, AND TESTING
INITIAL SETUP:
Tools
Materials/Parts
Refrigeration Unit Service Tool Kit, WP 0000 00, Item
Temperature Selector
1
Self-Locking Nuts (4)
Self-Locking Screws (3)
Equipment Condition
Remove the control module (WP 0029 00)
9
5
6
12
8
2
13
11
3
10
4
7
13
1
REMOVAL
1. Remove four machine screws (1) and pull control cover (2) off.
2. Loosen setscrew (3) in the knob (4). Remove knob.
3. Remove three machine screws (5) from spacer posts (6) and slip the mounting frame (7) off.
4. Tag and disconnect wires from the thermostatic switch (8) from the mounting frame (7).
INSPECTION
Check the thermostatic switch (8) for kinked or damaged capillary line or bulb and loose, broken, or missing terminals.
TESTING
1. Place the sensing bulb (12) in a container of warm water, 75-85 degrees F (25-30 degrees C) and set multimeter to
measure resistance on lowest scale. Place multimeter leads on terminals 1 and 3 of the thermostat (blue and red). Turn
the knob to the extreme cooler position. There should be no indication of continuity on multimeter. Turn the knob to the
extreme warmer position. Continuity should be indicated on the multime ter.
0030 00-1

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