Indoor Unit Installation (2)
3.
Installing indoor unit.
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
insulation tape.
3) Pass the drain hose and refrigerant pipes through the wall
hole, then set the indoor unit on the mounting plate hooks by
using the markings at the top of the indoor unit as a guide.
4) Open the front panel, then open the service lid. (Rifer to
Installation Tips.)
5) Pass the interconnecting wires 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 tie wires upward in advance for easier work.
(If the interconnecting wire ends are to be stripped first, bundle
wire ends with adhesive tape.)
6) Press the indoor unit’s bottom panel with both hands to set it
on the mounting plate hooks. Make sure the wires do not catch
on the edge of the indoor unit.
3-2. Left-side, left-back, or left-bottom piping.
1) Attach the drain hose to the underside of the refrigerant pipes
with adhesive vinyl tape.
2) Be sure to connect the drain hose to the drain port in place of
a drain plug.
3) Shape the refrigerant pipe along the pipe path
marking on the mounting plate.
4) Pass drain hose and refrigerant pipes through
the wall hole, then set the indoor unit on
mounting plate hooks, using the markings at
the top of indoor unit as a guide.
5) Pull in the interconnecting wires.
6) Connect the inter-unit piping.
7) Wrap the refrigerant pipes and drain hose together with
insulation tape as right figure, in case of setting the drain hose
through the back of the indoor unit.
8) While exercising care so that the interconnecting wires do not catch
indoor unit, press the bottom edge of indoor unit with both hands until
it is firmly caught by the mounting plate hooks. Secure indoor unit to
the mounting plate with the screws (3/16” × 1/2”L (M4 × 12mm)).
2.
Boring a wall hole and installing wall embedded pipe.
• For walls containing metal frame or metal board, be sure to use a wall
embedded pipe and wall cover in the feed-through hole to prevent
possible heat, electrical shock, or fire.
• Be sure to caulk the gaps around the pipes with caulking material to
prevent water leakage.
1) Bore a feed-through hole of 2-9/16 inch (65mm) in the wall so it has a
down slope toward the outside.
2) Insert a wall pipe into the hole.
3) Insert a wall cover into wall pipe.
4) After completing refrigerant piping, wiring, and drain piping, caulk pipe
hole gap with putty.
Right-bottom
piping
Right-back piping
Bind coolant pipe
and drain hose
together with
insulating tape.
Remove pipe port cover
here for right-side piping.
Remove pipe port cover
here for right-bottom piping.
Inside
Outside
Caulking
Wall embedded pipe
(Field supply)
Wall hole cover
(Field supply)
Wall embedded pipe
(Field supply)
φ
2-9/16”
(
φ
65mm)
Mounting plate
A
Wire guide
When stripping the
ends of interconnecting
wires in advance, bind
right ends of wires with
insulating tape.
Hang indoor unit’s hook here.
Interconnecting
wires
Mounting plate
A
Remove pipe port cover here for left-bottom piping.
Remove pipe
port cover
here for left-
side piping.
Left-bottom piping
Left-side
piping
Left-back
piping
How to set drain plug
No gap
Do not apply lubricating
oil (refrigerant machine
oil) when inserting.
Application of causes
deterioration and drain
leakage of the plug.
Insert a hexagon wrench (3/16 inch (4mm))
Wrap insulating tape around the
bent portion of refrigerant pipe.
Overlap at least half the width
of the tape with each turn.
Drain
hose
Caulk this hole
with putty or
caulking material.
Bind with plastic
tape.
A Mounting plate
Refrigerant
pipes
Drain hose
Bottom frame
H 3/16”
×
1/2”L
(M4
×
12mm) (2 point)
Interconnecting wire
Mounting
plate
A
