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Dc Inverter VRF plus Water Heater Solution Service Manual INSTALLATION
198
NO3: Connection of horizontal pipe
Drainage pipe is requisite for air conditioner unit. During cooling, the moisture in the air will
condense on the surface of evaporator. Such condensing water must be drained out of the unit.
Meanwhile, the drainage pipe has an important role to determine if the air conditioner can plays its
full functions.
18). All the condensate pipes must be installed at a distance over 500mm from the electric
box of the unit.
12.2 Installation of Drainage Pipe for Different Types of Indoor Unit
1) Duct-type Indoor Unit (Including General Static Pressure and Low Static Pressure)
a. Installation of drainage pipe
¾
The diameter of drainage pipe shall be equal to or higher than the diameter of
connection pipe. (PVC pipe: Dimension: Outer diameter 25mm, 32mm)
¾
The drainage pipe shall be short and has a down gradient of 1/100 at least, thus to avoid
air bag.
¾
To ensure that the drainage hose will not be bent and has enough gradient, a distance of
1 ~ 1.5m shall be kept between the hanger frames.
¾
Use drainage pipe and clamp.
Insert the drainage hose to the root. From the middle of white tape, tighten the clamp until the
tightening distance to the screw head is shorter than 4mm.
A. For thermal isolation, use sealing tape to wrap the drainage pipe and clamp.
B. The indoor drainage hose shall be thermally insulated.
Connection of
drain elbow
Connection of
horizontal pipe
Gradient over 1/100