YMGI: Your Modern Green Idea
YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
27
Installing the Drain Pipes
1. Insert the drain pipe to the drain outlet of the unit and then tighten the clamp securely with tape.
2. Connect the extension drain pipe to the drain pipe and then tighten the clamp with tape.
During the installation, distance from soft drain pipe to
the gasket is
A
mm when the bolt is tightened.
Indoor Unit
A
VRFI-12EC4-D2B(55)5
10±2mm(2/5±2/25inch)
VRFI-18EC4-D2B(55)5
10±2mm(2/5±2/25inch)
VRFI-24EC4-D2B(55)5
15±3mm(3/5±1/10inch)
Do not apply PVC or similar glue on the joints of the two
ends of drain pipe.
1. Metal clamp
2. Drain hose (accessory)
3.
Grey tape (accessory)
Insulate the pipe clamp and the drain hose using heat
insulation sponge.
1. Metal clamp (accessory)
2.
Insulation sponge (accessory)
3.
Grey tape (accessory)
3. When unifying multiple drain pipes, install the pipes as Fig.20. Select converging drain pipes whose gauge is
suitable for the operating capacity of the unit.(take the cassette type unit for example)
4. When the drain hose cannot keep a sufficient gradient, it is necessary to fit a riser pipe (field supplied) to it.
5. If the air flow of the indoor unit is high, this may cause negative pressure and result in return suction of outdoor
air. Therefore, a U-type water trap shall be designed on the drainage side of each indoor unit.
6. Install one water trap for each unit.
7. Installation of water trap shall consider easy cleaning in the future.
