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155
No. Component
Procedure
Remarks
⑤
Inverter
assembly
WARNING
Do not detach the inverter for 5 minutes after
turning off the breaker as doing so may cause
electric shocks.
1. Detachment
1) Perform Step 1 of
①
, Step 1 of
②
, Step 1 of
③
and Step 1 of
④
.
2) Unplug the two fan motor lead connectors and
remove the cord clamps (1 position).
Remove the two metal bands, and disengage
the fan motor leads from the inverter fixing
plate (lower) hooks (2 positions).
CN700 ...Fan motor lead (3P: blue)
CN750 ...Fan motor lead (3P: white)
3) Unplug the connectors of the sensors
connected to other components on the
interface P.C. board.
CN502 ...TD sensor (3P: white)
CN507 ...TO sensor (2P: yellow)
CN520 ...TE sensor (2P: green)
CN505 ...TS sensor (2P: white)
CN523 ...TL sensor (2P: white)
CN317 ...4-way valve coil (3P: blue)
CN300 ...PMV coil (6P: white)
CN312 ...2-way valve coil (3P: red)
CN314 ...2-way valve coil (4P: white)
CN311 ....2-way valve coil (3P: white)
CN308 ...Thermostat (2P: red)
CN501 ...High-pressure sensor (4P: red)
CN500 ...Low-pressure sensor (4P: white)
CN600 ...Connection with 2 fan IPDU P.C. board (CN504) (5P: blue)
CN400 ...Connection with noise filter P.C. board (CN08) (3P: white)
4) Remove the sensor lead wire clamp
(2 positions).
CAUTION
Disengage the locks on the housing to unplug
the connectors.
Lead wire clamp
of fan motor
(1 position)
Metal bands (2 each)
Inverter fixing plate (lower) hooks
(2 positions)
Sensor lead wire
clamps
(2 positions)
Fan motor connectors
(2 positions)
Notes
• Insert the connector of fan
lead of the upper part in
CN700 (3P: blue).