Gree U-Match Series Owner's Manual page 30

U-Match Series Cassette Type Unit
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.
3.2.6.1 Indoor Side Drainage Pipe
(1) Keep pipe size equal to or greater than that of the connecting pipe.
(2) Install the drain piping as shown and take measures against
condensation.
(3) Keep piping as short as possible and slope it downwards at a gradient of
at least 1/100 so that air may not remain trapped inside the pipe.
(4) If the drain pipe can't be installed at a proper inclination, then add drain lift
pipe.
Standard Unnecessary Charge
Pipe Length
5.0m
5.0m
5.0m
5.0m
5.0m
7.5m
7.5m
Pipe Length
≤7.0m
≤7.0m
≤7.0m
≤7.0m
≤7.0m
≤9.5m
≤9.5m
26
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