DC Inverter U-match Series Floor Ceiling Type Unit
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2.2.5 Refrigerant Adding
NOTE!
Before and during operation, use an appropriate refrigerant leak detector to monitor
the operation area and make sure the technicians can be well aware of any
potential or actual leakage of inflammable gas. Make sure the leak detecting device
is applicable to inflammable refrigerant. For example, it should be free of sparks,
completely sealed and safe in nature.
See the following table for the amount of additional refrigerant.
Item
Model
Standard Pipe
Length
Unnecessary
Charge Pipe
Length
Additional Refrigerant
Amount for Extra Pipe
YFC12G4/O
5.0m
≤7.0m
16 g/m
YFC18G4/O
YFC24G4/O
20 g/m
YFC30G4/O
YFC36G4/O
YFC42G4T/O
7.5m
≤
9.5m
35 g/m
YFC48G4T/O
YFC60G4T/O
2.2.6 Installation of Drain Pipe
(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.
2.2.6.1 Indoor Side Drain Pipe
(1) 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.
