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5
Indoor Unit Installation
1.
Installing the mounting plate
The mounting plate should be installed on a wall which can support the weight of the indoor unit.
1)Temporarily secure the mounting plate to the wall, make sure that the plate is completely level, and mark the drilling points
on the wall.
2)Secure the mounting plate to the wall with screws.
Recommended mounting plate retention spots and dimensions
2.
Drilling a wall hole and installing wall embedded pipe
WARNING
For metal frame or metal board walls, be sure to use a wall embedded pipe and wall hole cover in the feed-through hole to
prevent possible heat, electric shock, or fire.
• Be sure to caulk the gaps around the pipes with caulking material.
(to prevent condensation caused by intrusion of air from outside or within the wall)
1) Drill a feed-through hole with a
3-1/8 inch (80mm) diameter through the wall at
a downward angle toward the outside. (to prevent water leakage)
2) Insert a wall embedded pipe into the hole.
3) Insert a wall hole cover into wall pipe.
4) After completing refrigerant piping, wiring, and drain piping, caulk the pipe hole
gap with putty.
3.
Installing the indoor unit
In the case of bending or curing refrigerant pipes, keep the following precautions in mind. Abnormal sound may be generated
if improper work is conducted.
• Do not strongly press the refrigerant pipes onto the bottom frame.
• Do not strongly press the refrigerant pipes on the front grille, either.
3-1. Right-side, right-back, or right-bottom piping
1) Attach the drain hose to the underside of the refrigerant
pipes with adhesive vinyl tape.
2) Wrap the refrigerant pipes and drain hose together with
an insulation tape.
3) Pass the drain hose and refrigerant pipes through the wall hole, then
position the indoor unit on the
mounting plate hooks, using the
markings at the top of the indoor unit as a guide.
4) Open the front panel, then open the service lid.
(Refer to
“Service lid”
on page 4.)
5) Pass the inter-unit wire from the outdoor unit through the feed-through wall hole and
then through the back of the indoor unit. Pull them through the front side. Bend the
ends of cable tie wires upward for easier work in advance. (If the inter-unit wire ends
are to be stripped first, bundle wire ends with adhesive tape.)
6) Press the bottom frame of the indoor unit with both hands until it is firmly caught by
the
mounting plate hooks. Make sure that the wires do not catch on the edge of the
indoor unit.
unit: inch (mm)
Use a tape
measure
as shown.
Position the
end of the tape
measure at
∆
.
Place the pipe port cover
in this pocket.
Through-the-wall
hole
ϕ
3-1/8 (
ϕ
80)
Recommended mounting plate
retention spots (9 spots in all)
(Bolt size : 3/8 (M10))
(Bolt size : 3/8 (M10))
Place a leveler on these tab.
Gas pipe end
Liquid pipe end
4-11/16
(119)
41-5/16 (1050)
2-9/16
(65)
1-3/4 (45)
13-3/8 (340)
5-7/8
(149)
1-3/4 (45)
7-3/16 (182.5)
3-1/2
(89)
2-9/16
(65)
15-1/4 (388)
2-1/16 (53)
7-1/2 (190)
ϕ
3-1/8
(
ϕ
80)
ϕ
3-1/8
(
ϕ
80)
Drain hose
position
5-1/4 (134)
Removed pipe
port cover
A Mounting
plate
The removed pipe port
cover can be kept in the
mounting plate pocket.
Inside
Outside
Caulking
(field supply)
Wall embedded pipe
(field supply)
Even if a wall hole cover is not used, caulk both
the outdoor and indoor sides with putty.
Wall hole cover
(field supply)
φ
3-1/8”
(80mm)
Right-
bottom
piping
Right-side piping
Right-back piping
Bind refrigerant pipe and
drain hose together with
adhesive vinyl tape.
Remove pipe port
cover here for
right-side piping.
Remove pipe port
cover here for
right-bottom piping.
A
Mounting plate
A
Hang indoor
unit’s hook
here.
Mounting
plate
A
A
01_EN_3P572321-1A.fm Page 5 Thursday, August 8, 2019 10:47 AM
