Warranty Statement - Daikin WGZ030DW Operating And Maintenance Manual

PROBLEM
8.
Compressor
9.
Loses Oil
10. Oil trapped in line.
1.
2.
3.
Motor Overload
4.
Relays or Circuit
Breakers Open
5.
6.
Compressor 1.
Thermal Switch
Open 2.
1.
Freeze Protection
2.
Opens
3.
OM 1130-2
POSSIBLE CAUSES
Lack of refrigerant.
Velocity in risers too low (A-C only).
Low voltage during high load conditions.
Defective or grounded wiring in motor or
power circuits.
Loose power wiring.
High condensing temperature.
Power line fault causing unbalanced
voltage.
High ambient temperature around the
overload relay
Operating beyond design conditions.
Discharge valve partially shut.
Thermostat set too low.
Low water flow.
Low suction pressure.
POSSIBLE CORRECTIVE STEPS
1. Check for leaks and repair. Add
refrigerant.
2. Check riser sizes.
3. Check pitch of lines and refrigerant
velocities.
1. Check supply voltage for excessive line
drop.
2. Replace compressor-motor.
3. Check all connections and tighten.
4. See corrective steps for high discharge
pressure.
5. Check Supply voltage. Notify power
company. Do not start until fault is
corrected.
6. Provide ventilation to reduce heat.
4. Add facilities so that conditions are within
allowable limits.
5. Open valve.
3. Reset to 42°F (6°C) or above.
4. Adjust flow.
5. See "Low Suction Pressure."
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