After-Sales Service - Gree A Series Installation, Start-Up And Maintenance Manual

A Series Inverter Modular Air-cooled Chiller (Heat Pump)
Protection against the failed
4–way valve
Protection against the failed
compressor IPM module
Failed diischarge
temperature sensor
9.2

After-sales Service

When the unit in warranty has a quality issue or fails to operate properly under the allowable
operation condition, please contact the local sales representative for free service.
The user is required to designate personnel to take charge of the unit following the
instructions covered in this manual, otherwise any maintenance cost caused by the improper
operation will be at the user's expense.
1.The entering and leaving
water temperature sensor
fell off or installed incorreclty.
2.The 4–way valve was
damaged.
1.The voltage suddenly
dropped.
2.The compressor drive
board was damaged.
1.Tow low water tempeature.
2.The discharge
temperature sensor fell off.
32
1.Check if the entering and
leaving water temperature
sensors were installed
correctly and if silica gel at
the probe for heat conduction
was applied properly.
2.Replace it.
1.Check if it occured before
protection.
2.Replace it.
1.Decrease the load to
improve the water
temperature.
2.Check if the discharge
temperature sensor installed
correctly.