DC Inverter U-match Series Floor Ceiling Type Unit
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refrigerant and labelled for that refrigerant (i.e. special cylinders for the
recovery of refrigerant).
Cylinders shall be complete with pressure relief valve and
associated shut-off valves in good working order. Empty recovery
cylinders are evacuated and, if possible, cooled before recovery occurs.
The recovery equipment shall be in good working order with a set
of instructions concerning the equipment that is at hand and shall be
suitable for the recovery of flammable refrigerants. In addition, a set of
calibrated weighing scales shall be available and in good working order.
Hoses shall be complete with leak-free disconnect couplings and in
good condition. Before using the recovery machine, check that it is in
satisfactory working order, has been properly maintained and that any
associated electrical components are sealed to prevent ignition in the
event of a refrigerant release. Consult manufacturer if in doubt.
The recovered refrigerant shall be returned to the refrigerant
supplier in the correct recovery cylinder, and the relevant Waste
Transfer Notice arranged. Do not mix refrigerants in recovery units and
especially not in cylinders.
If compressors or compressor oils are to be removed, ensure that
they have been evacuated to an acceptable level to make certain that
flammable refrigerant does not remain within the lubricant. The
evacuation process shall be carried out prior to returning the
compressor to the suppliers. Only electric heating to the compressor
body shall be employed to accelerate this process. When oil is drained
from a system, it shall be carried out safely.
5.5 After-Sales Services
Any quality or other issues encountered in the purchased air
conditioner, please contact the local Gree after-sales service
department.