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ESIE17-08
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Part 3. Repair
3.3. Unit specific repair procedures
15/11/18
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Version 1.1
Page 95
R32 Sky-Air RZAG-M
PROCEDURE 3-PHASE
Removal
First, remove Main PCB assembly:
1. Flip over the protection sheet.
2. Remove the power and remote control wiring from the terminal block (1).
3. Cut the tie wraps.
4. Unplug all connectors (2) from the main PCB (4).
5. Remove the 4-way valve coil from the 4-way valve (refer to
"Replacing 4-way valve coil" on page 76
).
6. Remove the wiring from the cable clamp.
7. Remove the 2 screws (6) that fix the heat sink with a ring spanner or a wrench/socket.
8. Remove the screws (3) that fix the main PCB support to the Daikin unit (some screws are not visible).
9. Lift and turn the lid (5) to the left.
10. Lift the main PCB (1) to release it from the unit.
11. Slightly tilt (max. 15°) the main PCB (4) and disconnect 2 connectors at the rear of the main PCB panel.
12. Guide the wiring through the slots.
W
ARNING
: R
ISK
OF
F
IRE
When reconnecting a connector to the PCB, do not apply force, as this may damage the connector or connector pins of
the PCB.
C
AUTION
Due to the large size of the PCB it is sensitive to bending.
Only use a wrench/socket or a ring spanner to loosen or fasten the heat sink screws.
Do not use a screwdriver.
C
AUTION
Do not remove the main PCB assembly yet, it is still attached by wiring.
C
AUTION
Tilting the main PCB stresses the heat pipe, doe not tilt more than 15°.