U-Match Series Duct Type Unit
17
3.2.1.2 Leveling
The water level test must be done after installing the indoor unit to make the
unit is horizontal, as shown below.
3.2.2 Outdoor Unit Installation
(1) If the outdoor unit is installed on a solid ground such as concrete, 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.
3.2.3 Connection Pipe Requirement
3.2.3.1 Installation Notice and Requirement on Connection Pipe
Installation method: Connect the connection pipes first to the indoor unit and
then to the outdoor 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,
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