Quantcast RECTIFIER CR1 AND CAPACITORS C1 AND C2 INSPECTION, TESTING, AND REPLACEMENT

 

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REPLACEMENT - TM-9-4120-428-140172
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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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REPLACEMENT - TM-9-4120-428-140174
TM 9-4120-428-14
UNIT MAINTENANCE
AIR CONDITIONER, HORIZONTAL, COMPACT
RECTIFIER CR1 AND CAPACITORS C1 AND C2 INSPECTION, TESTING, 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
Capacitor
1
2 POS
4
3
CR1
3
1
C1
4 NEG
C2 (3PHASE)
2
RECTIFIER AND CAPACITOR
DIAGRAM
INSPECTION
Check the Rectifier and the Capacitors for general condition and loose, broken, or missing terminals.
TESTING
Rectifier CR1
1. Tag and disconnect ALL wire leads.
2. Using a multimeter on high ohms setting, connect the negative (-) lead to terminal 2 and the positive (+) lead to
terminal 1 or 3. A low-resistance reading should be obtained.
3. Connect the positive lead to terminal 2 and the negative lead to terminal 1 or 3. A very high resistance or open
circuit reading should be obtained.
4. Connect the positive lead to terminal 4 and the negative lead to terminal 1 or 3. A low resistance reading should be
obtained.
5. Connect the negative lead to terminal 4 and the positive lead to terminal 1 or 3. A very high resistance or open
circuit reading should be obtained.
6. Replace the defective rectifier and capacitors.
7. See WP 0028 00, Wiring Diagram. Connect ALL wire leads and remove tags.
0048 00-1

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