Multi Variable Air Conditioners Fresh Air Series Indoor Unit
13
(4) Use a sponge to wrap the uninsulated connection pipe and the joint. Then tie it tight with a
plastic tape.
4.3 Installation and Test of Drain Pipe
4.3.1 Notice for 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.
(4) The drain pipe should be as short as possible and slope downward for at least 1%~2% so that
condensate can drain out easily.
(5) Size of the drainage hose must not be smaller than that of the drain pipe.
(6) Install the drain pipe according to the following diagram and make it insulated. Improper
installation will lead to water leakage and furniture and other objects may get wet.
(7) You can buy local hard PVC pipe as drain pipe. When connecting the pipe, insert the end of
PVC pipe into the drain hole and then tighten it up with a drain hose and cable tie. Do not use
adhesives to connect drain hole and drain hose.
(8) When the drain pipe is used for several equipments, the shared pipe should be about 100mm
lower than the drain hole of each equipment. In this case, use thicker pipe.
Fig 4.3.1
4.3.2 Drainage pipe installation
(1) Insert the drain hose into the drain hole and tighten it with tapes, as shown in Fig.4.3.2. Model
with water pump will be provided with drain hose, while other models please prepare the drain
hose by yourself.
(2) Tighten the pipe clamp, with the distance between screw nut and hose smaller than 4mm.
Fig 4.3.2
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