Daikin VRV RXYMQ-A Series Service Manual page 292

Check
Indoor unit FXDQ-PD, FXDQ-ND
1. Turn OFF the power supply.
2. Measure the resistance between phases of U, V, W at the motor side connectors (3-core
FXDQ20-32PD
FXDQ40ND
FXDQ50/63ND
FXMQ50-140PB
Measurement of power wire connector.
Remove the X1A connector from the fan PCB (A2P) and measure the resistance between the
U and V, V and W, and W and U phases of the motor connector (with five conductors) and
check that each phase are balanced (within a permissible dispersion range of ±20%)
286
wire) to check that the values are balanced and there is no short circuiting, while connector
or relay connector is disconnected.
Model
Black-Red
81.0  ± 10%
81.0  ± 10%
44.0  ± 10%
Connector power wire use (X1A)
Red (5)
— (4)
White (3)
— (2)
Black (1)
Red
White
Black
Judgment
Black-White
102.0  ± 10%
102.0  ± 10%
44.0  ± 10%
U
V
W
SiME332106E
Part 6 Service Diagnosis