Refrigerant Adding; Installation Of Drain Hose - Gree U-Match Series Owner's Manual

U-Match Series Duct Type Unit
Pressure gauge (Low-pressure)
Switch (Low-pressure)
Connection pipe (to indoor unit)
Liquid valve
Gas valve
Service port
NOTICE:
For large-size units, there are maintenance ports for liquid valve and gas valve.
During evacuation, you may connect the two hoses of the branch valve assembly to
the maintenance ports to speed up the evacuation.

3.2.5 Refrigerant Adding

See the following table for the amount of additional refrigerant.
Item
GU50W/A1-K
GU71W/A1-K
GU85W/A1-K
GU100W/A1-M
GU125W/A1-M
GU140W/A1-M
GU160W/A1-M

3.2.6 Installation of Drain Hose

(1) It is not allowed to connect the condensate drain pipe into waste pipe or other
pipelines which are likely to produce corrosive or peculiar smell to prevent the
smell from entering indoors or corrupt the unit.
(2) It is not allowed to connect the condensate drain pipe into rain pipe to prevent
rain water from pouring in and cause property loss or personal injury.
(3) Condensate drain pipe should be connected into special drain system for air
conditioner.
Hose
Cap
Vacuum pump
Standard Pipe
Length
5.0m
5.0m
5.0m
5.0m
5.0m
7.5m
7.5m
gauge manifold
Pressure gauge (Hi-pressure)
Switch (Hi-pressure)
Hose with the valve pin
Unnecessary Charge
Pipe Length
≤7.0m
≤7.0m
≤7.0m
≤7.0m
≤7.0m
≤9.5m
≤9.5m
24
Connection pipe
Cap
Service pipe
Cap
Additional
Refrigerant Amount
for Extra Pipe
22 g/m
30 g/m
30 g/m
45 g/m
45 g/m
45 g/m
54 g/m