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Fixing of indoor unit
Latch (2 locations)
Indoor unit
Installation board
Installation board
Wall
Indoor unit base latch
CONNECTION OF REFRIGERANT PIPINGS
Preparation
Keep the openings of the pipes covered with tapes etc. to prevent dust, sand, etc. from entering them.
Indoor
Press
(Do not turn)
Remove
○ Remove the flared nuts. (on both liquid and gas sides)
○ Install the removed flared nuts to the pipes to be connected,
then flared the pipes.
• Flaring work
Copper pipe diameter
Clutch type flare tool for
Measurement B
R410A
ø6.35
0.0 - 0.5
ø9.52
0.0 - 0.5
ø12.7
0.0 - 0.5
ø15.88
0.0 - 0.5
Flaring
Use a flare tool designed for R410A or a conventional flare tool.
block
Copper pipe
Note that measurement B (protrusion from the flaring block) will vary depending on the type of
a flare tool in use.
If a conventional flare tool is used, use a copper pipe gauge or a similar instrument to check
protrusion so that you can keep measurement B to a correct value.
Open/close and detachment/attachment of the air inlet panel
○ To open, pull the panel at both ends of lower part and
release latches, then pull up the panel until you feel
resistance.
(The panel stops at approx. 60° open position)
○ To close, hold the panel at both ends of lower part to
lower downward and push it slightly until the latch
works.
○ To remove, pull up the panel to the position shown in
right illustration and pull it toward you.
○ To install, insert the panel arm into the slot on the front
panel from the position shown in right illustration, hold
the panel at both ends of lower part, lower it downward
slowly, then push it slightly until the latch works.
ELECTRICAL WIRING WORK
○ In case of faulty wiring connection,
Preparation of indoor unit
indoor unit does not operate. Then,
run lamp turns on and timer lamp
blinks.
Mounting of connecting wires
• How to remove the indoor unit from the installation board
Installation Steps
1
Pass the pipe through
1
Push up at the marked portion of the indoor unit base lower latch, and slightly pull it toward
the hole in the wall,
you. (both right and left hand sides) (The indoor unit base lower latch can be removed from
and hook the upper
the installation board)
part of the indoor unit
2
Push up the indoor unit upward so that it can be removed from installation board.
to the installation
board.
2
Gently push the lower
part to secure the unit.
Dimension A
CAUTION
Liquid side ø6.35 : 9.1 (mm)
Do not apply refrigerating machine
ø9.52 : 13.2 (mm)
A
oil to the flared surface.
Gas side ø9.52 : 13.2 (mm)
ø12.7 : 16.6 (mm)
ø15.88 : 19.7 (mm)
Measurement B (mm)
Conventional (R22) flare tool
Clutch type
Wing nut type
1.0 - 1.5
1.5 - 2.0
1.0 - 1.5
1.5 - 2.0
1.0 - 1.5
2.0 - 2.5
1.0 - 1.5
2.0 - 2.5
Approx. 80°
To remove / To install
Terminal block
Since this air-conditioner has been designed to collect dew drops on the rear
surface to the drain pan, do not attach the power cord above the gutter.
Drainage
○ Arrange the drain hose in a downward angle.
○ Avoid the following drain piping.
i H
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latch
○ Pour water to the drain pan located under the heat exchanger, and ensure that the water is discharged outdoor.
○ When extended drain hose is present inside the room, insulate it securely with heat insulator available in the market.
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Indoor
Liquid side
Gas side
(Do not turn)
○ Connect the pipes on both liquid and gas sides.
○ Tighten the nuts to the following torque.
Liquid side (ø6.35) : 14.0 - 18.0 N·m (1.4 - 1.8 kgf·m)
(ø9.52) : 34.0 - 42.0 N·m (3.4 - 4.2 kgf·m)
Gas side
(ø9.52) : 34.0 - 42.0 N·m (3.4 - 4.2 kgf·m)
(ø12.7) : 49.0 - 61.0 N·m (4.9 - 6.1 kgf·m)
(ø15.88) : 68.0 - 82.0 N·m (6.8 - 8.2 kgf·m)
CAUTION
Do not apply excess torque to the flared nuts.
Otherwise, the flared nuts may crack.
If FDC71VNP is connected, use reducer at gas
side of indoor unit to change the pipe size from
ø15.88 to ø12.7. (Reducer is attached in the
outdoor unit accessory)
How to remove and install the front panel
○ Removing
1
Remove the air inlet panel.
Remove the 8 screws fixing to the
2
front panel.
3
Remove the 5 latches in the upper
section of the front panel and then
remove the front panel from the unit.
○ Installing
Remove the air filter.
1
Cover the unit with the front panel.
2
3
Tighten the 8 screws to fix the
Screw
front panel.
Install the air filter.
4
5
Install the air inlet panel.
The screw of the lid is
tightened securely
RLD012A001
Gutter
Pipe accommodating section
CAUTION
Go through all installation steps and check if the drainage is all right.
Otherwise water leak may occur.
Odor from
the gutter
The drain hose
The gap to the ground is
The drain hose
h t
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i f i c
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W
a
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tip is in water.
5 cm or less.
tip is in the gutter.
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f o
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p
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Cover the coupling with insulator and then cover it with tapes.
Vinyl tape
Use an attached insulation pad for heat insulation.
Position it so that the slit area faces upward.
• Cover the indoor unit's flare-connected joints, after they are checked for a gas leak, with an indoor
unit heat insulating material and then wrap them with a tape with an attached insulation pad placed
over the heat insulating material's slit area.
Finishing work and fixing
Refrigerant piping
Cover the exterior portion with outer tape and
Connection wiring,
shape the piping to match with the contours of
Earth wiring
the route that piping will take.
Outer tape
Drain hose
Also fix the wiring and pipings to the wall with
clamps.
Wood screw
Clamp
Air inlet panel
Air filter
Front panel
Installing the air-cleaning filters
Open the air inlet panel and remove the air filters.
1
2
Install the air-cleaning filter in the filter holders, and then install the filter
holders in the air-conditioner.
• Each air-cleaning filter can be installed in the left or right filter holder.
Install the air filters and close the inlet panel.
3
Wall
Latch
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