10. Installation
Outdoor unit
CAUTION
• Cautions regarding on connecting the anchor bolt
– Tighten the rubber washer to prevent the bolt connection
part of the outdoor unit from corroding.
Rubber washer
– Anchor specification
Size
Diameter
of drill
bit (a)
Anchor
length (b)
Sleeve
length (c)
Insert
depth
Fastening
torque
Ø 10
14 mm
75 mm
40 mm
50 mm
30 N·m
※
Use the anchor bolts and nuts that is zinc plated or made of
STS material. Regular anchor bolts or nuts may get damaged
by corrosion.
a
m
c
b
• Cautions regarding on connecting the pipe
– If you install the outdoor unit on the rooftop, check the
strength and make sure to waterproof the rooftop.
– Construct draining pit around the base construction and
pay attention to the drainage around the outdoor unit.
(Condensation or defrost water may form during outdoor
unit operation.)
– If there's any possibility of small animals from entering the
pipe outlet, block the outlet as shown in the illustration.
Liquid side pipe
Gas side pipe
Block the part. (When withdrawing the pipe
from the front side)
• Cautions regarding on anti-vibration frame installation
–
–
During installation, make sure there is no gap between the
base ground and the supporting structures such as anti-
vibration frame or H beam.
Base ground must be constructed strongly to support the
bottom part of the anti-vibration mount.
– After installing the anti-vibration frame, untighten the
fixing part on the top and bottom part of the frame.
• Caution for installing discharge duct
– Static pressure of the discharge duct should be within the
standard specification when installing the duct.
– If you remove the fan guard to install the discharge duct,
make sure to install a safety net on the duct outlet. Foreign
substance may enter into the product and there could be a
risk of personal injury.
–
–
Wear protection equipment at all times when making
galvanized sheet metal duct, since the worker may get
injured by the sharp parts.
When installing the outdoor unit under the tree or near
forest, leafs may get into the product and cause problems
on the product. Therefore, install a discharge duct to
prevent foreign substance infiltration.
<Preventing foreign substance infiltration>
Installing the outdoor unit in various
environments
Installing the outdoor unit around the obstacles
• It is necessary to install a discharge guide duct(field supply) to
direct exhaust from the fan horizontally, when it is difficult to
provide a minimum space of 2m between the air outlet and a
nearby obstacle.
Upper floor
Discharged air
Ex.) Balcony
Discharged air
Grille/louver
Suction air
Ex.) Mechanical room