Flaring
Finishing work and fixing
Connection wiring,
Earth wiring
Outer tape
Refrigerant piping
Drain hose
Wood screw
Clamp
Cover the exterior portion with outer tape and
shape the piping so it will match the contours
of the route that the piping to take.
Also fix the wiring and pipings to the wall with
clamps.
RKY012A011
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. 60o 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.
How to remove and fit the front panel
Removing
Remove the air inlet panel.
Remove the 5 set screws.
Remove the 4 latches in the upper section.
Move the lower part of the panel forward and
push upwards to remove.
1
2
3
4
Fitting
Do remove the air filter.
Cover the body with the front panel.
Fit the 4 latches in the upper section.
Tighten the 5 set screws.
Fit the air filter.
Fit the air inlet panel.
1
2
3
4
5
6
Install the removed flared nuts to the pipes to be connected,
then flared the pipes.
Remove the flared nuts. (on both liquid and gas sides)
Keep the openings of the pipes covered with tapes etc. to prevent dust, sand, etc. from entering them.
CONNECTION OF REFRIGERANT PIPINGS
Preparation
(Do not turn)
Press
Remove
A
90 p 0.5˚
Dimension A
Liquid side ø6.35 : 9.1 (mm)
Gas side ø9.52 : 13.2 (mm)
ø12.7 : 16.6 (mm)
CAUTION
Do not apply refrigerating machine
oil to the flared surface.
Indoor
Copper pipe diameter
Use a flare tool designed for R410A or a conventional flare tool.
Please 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, please use a copper pipe gauge or a similar instrument to
check protrusion so that you can keep measurement B to a correct value.
Clutch type flare tool for
R410A
Conventional (R22) flare tool
ø6.35
ø9.52
ø12.7
0.0 - 0.5
0.0 - 0.5
0.0 - 0.5
1.0 - 1.5
1.0 - 1.5
1.0 - 1.5
1.5 - 2.0
1.5 - 2.0
2.0 - 2.5
Measurement B (mm)
Clutch type Wing nut type
CAUTION
Do not apply excess torque to the flared nuts.
Otherwise, the flared nuts may check depending.
Arrange the drain hose in a downward angle.
Avoid the following drain piping.
Pour water to the drain pan located under the heat exchanger, and ensure that the water is discharged outdoor.
When the extended drain hose is indoor, securely insulate it with a heat insulator available in the market.
CAUTION
Wall
Gutter
Pipe accommodating section
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
Go through all installation steps and check if the drainage is all right.
Otherwise water leak may occur.
Higher than specified The drain hose
tip is in water.
esohniardehTyvaW
tip is in the gutter.
The gap to the ground is
5 cm or less.
Odor from
the gutter
2
1
Installation Steps
Pass the pipe through
the hole in the wall,
and hook the upper
part of the indoor unit
to the installation board.
Gently push the lower
part to secure the unit.
• How to remove the indoor unit from the installation board
Fixing of indoor unit
Push up at the marked portion of the indoor unit base lower latch, and slightly pull it toward
you. (both right and left hand sides) (The indoor unit base lower latch can be removed from
the installation board)
Push up the indoor unit upward. So the indoor unit will be removed from the installation board.
1
2
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)
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)
Connection Insulation of the connection portion
Indoor
Liquid side
Gas side
(Do not turn)
• 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.
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.
• Flaring work
Measurement B
block
Copper pipe
The marked portion of the indoorunit
base lower latch.
Indoor unitI
Latch
(2 locations)
Installation
borad
Installation borad
Wall
Indoor unit base lower latch
Set screws
latch
