YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
YMGI: Your Modern Green Idea
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Outdoor Unit Installation
1.
If the outdoor unit is installed on a solid ground such as a concrete pad, use M10 screw bolts and nuts to secure the unit and
make sure the unit stands erect and level.
2.
Do not install it on top of the building.
3.
If it vibrates and causes noise, please add rubber cushion between the outdoor unit and the installation base.
4.
When the outdoor unit is in heating or defrosting, it needs to drain water. When installing the drain pipe, plug the accompanied
drainage connector to the drainage hole on the chassis of the outdoor unit. Then connect a drain hose to the drainage
connector (If drainage connector is used, the outdoor unit should be at least 10cm from the installation ground. See the
following figures).
Connection Pipe Installation
Installation Notice and Requirement on Connection Pipe
Installation method: Connect the connection pipes first to the unit. When bending a connection pipe, be careful not to
damage the pipe. Do not over-tighten the screw nut, otherwise leakage will occur. Besides, the outside of connection pipe
should be added with a layer of insulating cotton to protect it from mechanical damage during installation, maintenance
and transportation.
Model
Size of Fitting Pipe(in.)
Maximum pipe
length ft. (m)
Biggest drop
between indoor and
outdoor units ft. (m
Liquid pipe
Gas pipe
VRUO-2436HP-U2B(54)
3/8
3/4
98.4 (30)
49.21 (15)
VRUO-4860HP-U2B(54)
3/8
3/4
98.4 (30)
49.21 (15)
Connection pipe should adopt water-proof insulating material. Its wall thickness should be 0.5-1.0mm and the pipe wall
should be able to withstand 6.0MPa. The longer the connection pipe is the worse cooling and heating performance it has.
When the drop between indoor and outdoor units is larger than 10m, an oil return bend should be added every 6 meters.
