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REPLACEMENT - TM-9-4120-428-140174
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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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EVAPORATOR FAN, MOTOR, AND HOUSING CLEAN ING, INSPECTION, TESTING, REMOVAL, ASSEMBLY, AND INSTALLATION
TM 9-4120-428-14
UNIT MAINTENANCE
AIR CONDITIONER, HORIZONTAL, COMPACT
TRANSFORMER T1 INSPECTION AND REPLACEMENT
INITIAL SETUP:
Equipment Condition
Tools
Remove Top Front Panel (WP 0019 00)
Refrigeration Unit Service Tool Kit, WP 0000 00, Item
Remove Junction Box (WP 0036 00)
1
Materials/Parts
Transformer
Insulation Sleeving
Lock Washers (4)
1
4
1
2
7
2
3
4
3
8
5
6
TRANSFORMER
DIAGRAM
INSPECTION
1. Remove four screws (1), lock washers (2), and flat washers (3) and pull the transformer from the unit.
2. (On three-phase units only). Tag and disconnect leads from terminals 2 and 7. Check for continuity across the
primary winding pin (pin 2 to pin 5) and across the secondary winding pin (pin 7 to pin 8). If either winding is open,
replace the transformer. (See WP 0 049 00).
3. Check for shorts between terminals of each winding and transformer case and between primary terminals and
secondary terminals using a multimeter on high ohms setting. If a short is indicated, replace the transformer.
4. Tag and connect all wire leads and remove tags. (WP 0028 00).
5. Attach the transformer (4) to the unit with four screws (1), lock washers (2), and flat washers (3).
REPLACEMENT
1. Remove four screws (1), lock washers (2), and flat washers (3) and pull the transformer (4) from the unit.
2. Tag and disconnect all wire leads. (WP 0028 00) and replace the transformer.
3. Connect all wire leads to the new transformer and remove tags. (WP 0028 00).
4. Attach the transformer (4) to the unit with four screws (1), lock washers (2), and flat washers (3).
NOTE
FOLLOW-ON MAINTENANCE:
Install Junction Box (WP 0036 00)
Install Top Front Panel (WP 0019 00)
END OF WORK PACKAGE
0049 00-1

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