DC Inverter U-match Series Cassette Type Unit
30
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.
Extension drain piping
(commercially
available)
Insulating tube
(commercially
available)
Insulating tape
(accessory)
Indoor unit
drain hose
(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.
(5) In order to make sure the drain hose is straight, the hangers should keep a
distance of 1~1.5m from one another.
√ （Correct）1/100 or more gradient x (wrong)
1-1.5m
(6) Use the drain hose that is delivered together with the unit.
(7) Insert the drain hose into the drain faucet.
(8) For the purpose of thermal insulation, wind a large piece of sponge around the
clamp of drain hose.
(9) Apply thermal insulation for the indoor drain hose.
During the installation, distance from
soft drain pipe to the gasket is A mm
when the bolt is tightened. It is not
allowed to apply PVC or other related
glue in the joints of two ends of drain
pipe.
①. Metal clamp (accessory)
②. Insulation sponge (accessory)
Insulate the pipe clamp and the drain
hose using heat insulation sponge.
①. Metal clamp
②. Drain hose (accessory)
③. Grey tape (accessory)
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