ESIE16-02K
|
Part 2. Troubleshooting
2.4. Component checklist
Page 50
31/05/21
|
Version 1.1
RA R32 Split & multi split M-Series
2.4.1. Indoor unit
2.4.1.1. Fan motor
PRELIMINARY ACTIONS
1. Switch off the Daikin unit via the user interface.
2. Switch off the Daikin unit with the field supplied circuit breaker.
3. Remove casing when required.
PROCEDURE
1. Check the state of the rotor, replace the rotor if damaged, deformed, cracked or broken.
2. Check the motor shaft bearing friction, only perform electrical check if motor runs with low shaft bearing friction. Replace fan
motor if friction is abnormal.
PRELIMINARY ACTIONS
1. Switch off the Daikin unit via the user interface.
2. Switch off the Daikin unit with the field supplied circuit breaker.
3. Remove casing when required.
PROCEDURE
1. Check fuse on indoor PCB, replace if blown.
2. Check if fan motor connector is plugged into PCB.
3. Power the Daikin unit.
4. Check power supply, the measured voltage must be 198 - 240 VAC, if not replace indoor PCB.
Technical specification
Description
The motor has a single connector for DC power and the rotation
counter feed back from the integrated pulse generator
(4 pulses/revolution).
The fan motor runs on a fixed speed to supply the required air flow
rate.
Location
Piping diagram
Wiring diagram
Switch box
Component overview of unit
.
Not applicable.
Not applicable.
Check procedure
Mechanical check
Electrical check
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.
