Indoor Unit; Fan Motor - Daikin SA R32 Sky-Air RZAG-L Service Manual

ESIE16-03B | Part 2. Troubleshooting

2.4.1. Indoor unit

2.4.1.1. Fan motor

Technical specification
The motor has a single connector for DC power and the rotation
counter feed back from the integrated pulse generator
(4 pulses/revolution).
Location
Piping diagram
See "Indoor unit" on
page 117.
Check procedure
Mechanical check
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.
4. Check the state of the rotor, replace the rotor if damaged, deformed, cracked or broken.
5. 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.
Electrical check
General
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.
4. Check fuse on indoor PCB, replace if blown.
W : R
ARNING
When reconnecting a connector to the PCB, do not apply force, as this may damage the connector or connector pins of
the PCB.
5. Check if fan motor connector is plugged into PCB.
6. Power the Daikin unit.
7. Check power supply, the measured voltage must be 198 - 240 VAC, if not replace indoor PCB.
Page 46
SA R32 Sky-Air RZAG-L
Wiring diagram
See "Indoor unit" on
page 114.
F
ISK OF IRE
Description
The fan motor runs on a fixed speed to supply the required air flow
rate.
Switch box
Not applicable.
2.4. Component checklist
Component overview of unit
Not applicable.
22/08/16 | Version 1.1