Charging And Discharging Of Refrigerant - Gree GRS-CQ8.0Pd/NaE-K Manuel D'utilisateur

SPLIT TYPE
(2) GRS-CQ12Pd/NaE-M,GRS-CQ14Pd/NaE-M,GRS-CQ16Pd/NaE-M,GRS-CQ12Pd/NaE-K, GRS-CQ14Pd/
NaE-K,GRS-CQ16Pd/NaE-K

15. Charging and Discharging of Refrigerant

(1) Before shipped out from manufacturer, the outdoor unit has been filled with refrigerant. Additional refrigerant
may be filled when carrying out site connection of pipelines.
(2) Check the liquid valve and the gas valve of the outdoor unit. The valves shall be completely shut off.
(3) Connect a vacuum pump to the liquid valve and the gas valve of the outdoor unit to remove air from the
inside of the indoor unit and the connecting pipe. Refer to the following figure:
(4) After confirming that there is no leakage from the system, when the compressor is not in operation, charge
additional R410A working fluid with specified amount to the unit through the filling opening of the liquid pipe
valve of the outdoor unit.
Be sure to charge the specified amount of refrigerant in liquid state to the liquid pipe. Since this
•
refrigerant is a mixed refrigerant, adding it in gas form may cause the refrigerant composition to change,
preventing normal operation.
Before charging, check whether the refrigerant cylinder is equipped with a siphon tube or not.
•
With siphon tube
• When charging is interrupted or finished, reinspect the unit but do not let the compressor run into operation.
• Do not use mixture of refrigerant vapor and air or oxygen for pressurizing for fear of explosion.
Copyright 2018. This translation is property of GREE PRODUCTS SL. All rights reserved. Total or partial reproduction without its express authorization is prohibited.
Pressure meter
"Lo"knob
Liquid valve
Gas valve
Air-to-water Heat Pump Split Versati
XT4
5 6
220VAC
Gate-Controller
Pressure meter
"HI"knob
Connection pipe
WARNING
NOTE
33
Vacuum pump
No siphon tube