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Installation and base ground work for an outdoor unit
▶ Install the outdoor unit 150mm higher than the base ground and install the drain hole to connect the pipe
to the drainage.
▶ When the front fan of an outdoor unit is installed in a place where the average snowfall is more than
150mm, the discharge duct should be attached to the outdoor unit.
▶ The concrete foundation should be 1.5 times larger than bottom of the outdoor unit.
▶ It is necessary to install wire mesh or steel bar when outdoor units are installed on a soft foundation.
▶ When installing multiple outdoor units at the same place,
install the H beam on the base ground. (When installing
a number of outdoor units, you can install it on the base
ground.)
▶ Install the H beam(150mm x 150mm x t10 : basic
specification) or vibration absorption frame to jut out from
the base ground.
▶ After installing the H beam, apply corrosion protection.
▶ Install a square pad(t=20mm or more) to prevent vibration
from the outdoor unit onto the base ground. Place the
outdoor unit on the H beam and fix it with the bolt, nut and
washer. (Fix with M10 basic anchor bolt, nut and washer.)
Base ground work
Drain hole
150mm or more
< When installing on the ground >
▶ The outdoor unit should be supported within the range of measurement below for base ground work.
Anchor bolt position
▶ When the outdoor unit needs to be supported, fix it with wire as shown in
the picture.
- Slightly unwind the four screws on the cover top of the outdoor unit.
- Wind wires round the four screws and fasten the screws again.
- Fix the wires to the ground.
Install the outdoor unit
horizontally on the ground
(Unit : mm)
620
940
Outdoor unit
Anchor bolt
20mm
Nut, Spring
washer
A
75mm
or more
150mm or more
< When installing on the roof >
Square pad
H beam
A+10~20mm or
more
11
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