226
TROUBLESHOOTING
48) Inspect Outdoor Heat Exchanger Liquid Flow Control Valve
1. Check if the mechanical part of the outdoor heat exchanger liquid flow control valve is locked.
When the valve is driven with the mechanical part locked, the motor idles, making a soft clicking sound.
1) Turn ON the electric leakage breaker.
2) Check if the valve makes the sound when it is fully closed (when the power is turned ON), and makes no sound
when it is opened.
If the valve makes the sound both when it is fully closed and opened, there is a fault in the valve.
2. Check motor coil resistance
1) Turn OFF the electric leakage breaker.
2) Measure the resistance between each coils.
※ When the electronic expansion valve is 5 cores (without brown), substitute red core for brown core.
3. Check electric continuity of the connector and wiring.
1) Check for disconnection of the connector.
2) Disconnect the connector and check electric continuity of the wiring.
NOTE) When replacing the refrigerant system parts, Refer to P221, [Technical Data When Replacing the Re-
frigerant System Parts].
[ 8 TON ] [ 15 TON ]
Mechanical
part
Coil
Mechanical
part
Coil
[ 8 TON ] [ 15 TON ]
Standard resistance value Standard resistance value
Red-White (5-6)
46 ± 4 Ω
Red-White (5-6)
34.3 ± 4.3 Ω
Red-Orange (5-3) Red-Orange (5-3)
Brown-Yellow (2-4) Brown-Yellow (2-4)
Brown-Blue (2-1) Brown-Blue (2-1)
White-Orange (6-3)
92 ± 8 Ω
White-Orange (6-3)
68.6 ± 8.6 Ω
Yellow-Blue (4-1) Yellow-Blue (4-1)
To Next Page
Loading...
Need help?
General