70
Installation & Commissioning Guide PKY470-700 Tri-Capacity Package with CM100 Control
Doc. No.0525-032
Ver. 9 180921
TROUBLESHOOTING GUIDE
Description
Check Points
Compressor HP Fault
Check the Outdoor Fan operation.
Check the coils are clean.
Check for excess refrigerant charge.
Check for non-condensible.
(Standing pressure with reference to Press. Temp. Chart)
Check the HP switch for continuity.
(There is no continuity in FAULT condition)
Compressor LP Fault
Check for less refrigerant charge.
Check for non-condensible.
(Standing pressure with reference to Press. Temp. Chart)
Check the LP switch for continuity.
(There is no continuity in FAULT condition)
Outdoor Coil Temp1 Fault
Check the wiring and the resistance through the sensor probe.
Outdoor Coil Temp 2 Fault
Check the wiring and the resistance through the sensor probe.
Room Air Temp Sensor Fault
Check the wiring and the resistance through the sensor probe.
Outdoor Air Temp Sensor Fault
Check the wiring and the resistance through the sensor probe.
Indoor Coil Sensor Fault
Check the wiring and the resistance through the sensor probe.
Filter Alarm
Check the filter if dirty.
Clean or replace if required.
Содержание PKY470T-6Q2
Страница 78: ...THIS PAGE WAS INTENTIONALLY LEFT BLANK ...
Страница 79: ...THIS PAGE WAS INTENTIONALLY LEFT BLANK ...