Calculation Of The Additional Refrigerant Charging; Calculation Of The Additional Refrigerant Charge; Indoor Unit; Liquid Refrigerant Pipe - Gree GWHD14NK3BO Service Manual

4) When the compressor is not running, charge the R410A refrigerant into the refrigerant pipe from the liquid valve of the
outdoor unit (do not do it from the gas valve).
a.

Calculation of the Additional Refrigerant Charging

Refrigerant Charge (kg)
Notes
refrigerant pipe.
The amount of the additional refrigerant charge is dependent on the diameter and length of the liquid refrigerant pipe
Record the additional refrigerant charge for future maintenance.

2) Calculation of the Additional Refrigerant Charge

charged.
3) Example : GWHD (42) NK3AO
Serial No.
Diameter
refrigerant charge=(65-50)×0.022=0.33kg (Note: no additional refrigerant is needed for the liquid pipe within 50m).
Model
Model
GWHD(36)NK3AO
GWHD(42)NK3AO
Serial No.

Indoor Unit

Indoor Unit
Indoor Unit
Indoor Unit
Indoor Unit
e
Length 20m
GWHD(36)NK3AO
3.6
e
d
c
b
a
Fig.9
Model
Ducted Type GFH(09)EA-K3DNA1A/I
Ducted Type GFH(09)EA-K3DNA1A/I
Ducted Type GFH(09)EA-K3DNA1A/I
Ducted Type GFH(09)EA-K3DNA1A/I
Ducted Type GFH(18)EA-K3DNA1A/I
d c
20m 15m
GWHD(42NK3AO
4.8
a
5m 5m
Installation Manual
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