INSTALLATION MANUAL FOR INDOOR UNIT
(c) Model SRK71ZK-S
WALL TYPE AIR CONDITIONER
R410A REFRIGERANT USED
RKW012A400A
INSTALLATION MANUAL FOR INDOOR UNIT
• This installation manual illustrates the method of installing an indoor
unit.
• For electrical wiring work, please see instructions set out on the
backside.
• For outdoor
please
refer
to the
outdoor unit
unitinstallation
installationand
andrefrigerant
refrigerantpiping,
piping,
please
refer
to
installation
manual that comes with your outdoor unit.
page
38.
• A wired remote control unit is supplied separately as an optional part.
• When install the unit, be sure to check whether the selection of
installation place, power supply specifications, usage limitation (piping
length, height differences between indoor and outdoor units, power
supply voltage and etc.) and installation spaces.
SAFETY PRECAUTIONS
• Read the “SAFETY PRECAUTIONS” carefully first of all and strictly follow it
during the installation work in order to protect yourself.
• The precautionary items mentioned below are distinguished into two levels,
WARNING and
CAUTION .
WARNING : Wrong installation would cause serious consequences such
as injuries or death.
CAUTION : Wrong installation might cause serious consequences
depending on circumstances.
Both mentions the important items to protect your health and safety so strictly
follow them by any means.
• Be sure to confirm no anomaly on the equipment by commissioning after completed installation and explain the operating methods as well as the maintenance
methods of this equipment to the user according to the owner’s manual.
• Keep the installation manual together with owner’s manual at a place where
any user can read at any time. Moreover if necessary, ask to hand them to a
new user.
• For installing qualified personnel, take precautions in respect to themselves by
using suitable protective clothing, groves, etc., and then perform the
installation works.
• Please pay attention not to fall down the tools, etc. when installing the unit at
the high position.
• If unusual noise can be heard during operation, consult the dealer.
• The meanings of “Marks” used here are shown as follows:
Never do it under any
circumstances.
Always do it according to the
instruction.
WARNING
-
112 -
• Tighten the flare nut by torque wrench with specified method.
If the flare nut were tightened with excess torque, this may cause burst and
refrigerant leakage after a long period.
• The electrical installation must be carried out by the qualified
electrician in accordance with “the norm for electrical work” and
“national wiring regulation”, and the system must be connected to
the dedicated circuit.
Power supply with insufficient capacity and incorrect function done by
improper work can cause electric shocks and fire.
• Be sure to shut off the power before starting electrical work.
Failure to shut off the power can cause electric shocks, unit failure or
incorrect function of equipment.
• Be sure to use the cables conformed to safety standard and cable
ampacity for power distribution work.
Unconformable cables can cause electric leak, anomalous heat production
or fire.
• This appliance must be connected to main power supply by means
of a circuit breaker or switch (fuse:20A) with a contact separation of
at least 3mm.
• When plugging this appliance, a plug conforming to the norm
IEC60884-1 must be used.
• Use the prescribed cables for electrical connection, tighten the
cables securely in terminal block and relieve the cables correctly to
prevent overloading the terminal blocks.
Loose connections or cable mountings can cause anomalous heat
production or fire.
• Arrange the wiring in the control box so that it cannot be pushed up
further into the box. Install the service panel correctly.
Incorrect installation may result in overheating and fire.
• Be sure to switch off the power supply in the event of installation,
inspection or servicing.
If the power supply is not shut off, there is a risk of electric shocks, unit
failure or personal injury due to the unexpected start of fan.
• Be sure to wear protective goggles and gloves while at work.
• Earth leakage breaker must be installed.
If the earth leakage breaker is not installed, it can cause electric shocks.
• Do not put the drainage pipe directly into drainage channels where
poisonous gases such as sulphide gas can occur.
Poisonous gases will flow into the room through drainage pipe and
seriously affect the user’s health and safety. This can also cause the
corrosion of the indoor unit and a resultant unit failure or refrigerant leak.
• Ensure that no air enters in the refrigerant circuit when the unit is
installed and removed.
If air enters in the refrigerant circuit, the pressure in the refrigerant circuit
becomes too high, which can cause burst and personal injury.
• Do not processing, splice the power cord, or share a socket with
other power plugs.
This may cause fire or electric shock due to defecting contact, defecting
insulation and over-current etc.
• Do not bundling, winding or processing for the power cord. Or, do
not deforming the power plug due to tread it.
This may cause fire or heating.
BEFORE INSTALLATION
○ Before installation check that the power supply matches the air conditioner.
CAUTION
• Carry out the electrical work for ground lead with care.
Do not connect the ground lead to the gas line, water line, lightning conductor or telephone line’s ground lead. Incorrect grounding can cause unit faults
such as electric shocks due to short-circuiting.
• Use the circuit breaker of correct capacity. Circuit breaker should
be the one that disconnect all poles under over current.
Using the incorrect one could cause the system failure and fire.
• Install isolator or disconnect switch on the power supply wiring in
accordance with the local codes and regulations.
The isolator should be locked in OFF state in accordance with EN60204-1.
• Be sure to install indoor unit properly according to the installation
manual in order to run off the drainage smoothly.
Improper installation of indoor unit can cause dropping water into the room
and damaging personal property.
• Install the drainage pipe to run off drainage securely according to
the installation manual.
Incorrect installation of the drainage pipe can cause dropping water into the
room and damaging personal property.
• Be sure to install the drainage pipe with descending slope of 1/100
or more, and not to make traps and air-bleedings.
Check if the drainage runs off securely during commissioning and ensure
the space for inspection and maintenance.
• Secure a space for installation, inspection and maintenance
specified in the manual.
Insufficient space can result in accident such as personal injury due to
falling from the installation place.
• For installation work, be careful not to get injured with the heat
exchanger, piping flare portion or screws etc.
• Be sure to insulate the refrigerant pipes so as not to condense the
ambient air moisture on them.
Insufficient insulation can cause condensation, which can lead to moisture
damage on the ceiling, floor, furniture and any other valuables.
• When perform the air conditioner operation (cooling or drying operation) in which ventilator is installed in the room. In this case, using the
air conditioner in parallel with the ventilator, there is the possibility
that drain water may backflow in accordance with the room lapse into
the negative pressure status. Therefore, set up the opening port such
as incorporate the air into the room that may appropriate to ventilation (For example; Open the door a little). In addition, just as above, so
set up the opening port if the room lapse into negative pressure status
due to register of the wind for the high rise apartment etc.
• Be sure to perform air tightness test by pressurizing with nitrogen
gas after completed refrigerant piping work.
If the density of refrigerant exceeds the limit in the event of refrigerant
leakage in the small room, lack of oxygen can occur, which can cause
serious accidents.
• Do not install the unit in the locations listed below.
• Locations where carbon fiber, metal powder or any powder is floating.
• Locations where any substances that can affect the unit such as sulphide
gas, chloride gas, acid and alkaline can occur.
• Vehicles and ships.
• Locations where cosmetic or special sprays are often used.
• Locations with direct exposure of oil mist and steam such as kitchen and
machine plant.
• Locations where any machines which generate high frequency harmonics
are used.
• Locations with salty atmospheres such as coastlines.
• Locations with heavy snow (If installed, be sure to provide base flame and
snow hood mentioned in the manual).
• Locations where the unit is exposed to chimney smoke.
• Locations at high altitude (more than 1000m high).
• Locations with ammonic atmospheres.
• Locations where heat radiation from other heat source can affect the unit.
• Locations without good air circulation.
• Locations with any obstacles which can prevent inlet and outlet air of the unit.
• Locations where short circuit of air can occur (in case of multiple units
installation).
• Locations where strong air blows against the air outlet of outdoor unit.
• Locations where something located above the unit could fall.
It can cause remarkable decrease in performance, corrosion and damage
of components, malfunction and fire.
• Do not install the indoor unit in the locations listed below (Be sure
to install the indoor unit according to the installation manual for
each model because each indoor unit has each limitation).
• Locations with any obstacles which can prevent inlet and outlet air of the
unit.
• Locations where vibration can be amplified due to insufficient strength of
structure.
• Locations where the infrared receiver is exposed to the direct sunlight or
the strong light beam (in case of the infrared specification unit).
• Locations where an equipment affected by high harmonics is placed (TV
set or radio receiver is placed within 1m).
• Locations where drainage cannot run off safely.
It can affect performance or function and etc.
• Do not install the unit near the location where leakage of
combustible gases can occur.
If leaked gases accumulate around the unit, it can cause fire.
• Do not install the unit where corrosive gas (such as sulfurous acid
gas etc.) or combustible gas (such as thinner and petroleum gases)
can accumulate or collect, or where volatile combustible
substances are handled.
Corrosive gas can cause corrosion of heat exchanger, breakage of plastic
parts and etc. And combustible gas can cause fire.
• Do not use the indoor unit at the place where water splashes may
occur such as in laundries.
Since the indoor unit is not waterproof, it can cause electric shocks and fire.
• Do not install nor use the system close to the equipment that
generates electromagnetic fields or high frequency harmonics.
Equipment such as inverters, standby generators, medical high frequency
equipments and telecommunication equipments can affect the system, and
cause malfunctions and breakdowns. The system can also affect medical
equipment and telecommunication equipment, and obstruct its function or
cause jamming.
• Do not place any variables which will be damaged by getting wet
under the indoor unit.
When the relative humidity is higher than 80% or drainage pipe is clogged,
condensation or drainage water can drop and it can cause the damage of
valuables.
• Do not install the remote control at the direct sunlight.
It can cause malfunction or deformation of the remote control.
• Do not use the unit for special purposes such as storing foods,
cooling precision instruments and preservation of animals, plants or
art.
It can cause the damage of the items.
• Do not use any materials other than a fuse with the correct rating in
the location where fuses are to be used.
Connecting the circuit with copper wire or other metal thread can cause
unit failure and fire.
• Do not touch any buttons with wet hands.
It can cause electric shocks.
• Do not touch any refrigerant pipes with your hands when the
system is in operation.
During operation the refrigerant pipes become extremely hot or extremely
cold depending the operating condition, and it can cause burn injury or
frost injury.
SELECTION OF INSTALLATION LOCATION
(Install at location that meets the following conditions, after getting approval from the customer)
Indoor unit
5 cm minimum
from the wall
6.5 cm minimum from the ceiling
Installation board
'11 • SCM-DB-109
• Installation must be carried out by the qualified installer.
If you install the system by yourself, it may cause serious trouble such as
water leaks, electric shocks, fire and personal injury, as a result of a system
malfunction. Do not carry out the installation and maintenance work except
the by qualified installer.
• Install the system in full accordance with the installation manual.
Incorrect installation may cause bursts, personal injury, water leaks, electric
shocks and fire.
• Be sure to use only for household and residence.
If this appliance is installed in inferior environment such as machine shop
and etc., it can cause malfunction.
• Use the original accessories and the specified components for
installation.
If parts other than those prescribed by us are used, It may cause water
leaks, electric shocks, fire and personal injury.
• Install the unit in a location with good support.
Unsuitable installation locations can cause the unit to fall and cause
material damage and personal injury.
• Ventilate the working area well in the event of refrigerant leakage
during installation.
If the refrigerant comes into contact with naked flames, poisonous gas is
produced.
• When installing in small rooms, take prevention measures not to
exceed the density limit of refrigerant in the event of leakage,
referred by the formula (accordance with ISO5149).
If the density of refrigerant exceeds the limit, please consult the dealer and
install the ventilation system, otherwise lack of oxygen can occur, which
can cause serious accident.
• After completed installation, check that no refrigerant leaks from
the system.
If refrigerant leaks into the room and comes into contact with an oven or
other hot surface, poisonous gas is produced.
• Use the prescribed pipes, flare nuts and tools for R410A.
Using existing parts (for R22 or R407C) can cause the unit failure and
serious accidents due to burst of the refrigerant circuit.
WARNING
• Do not vent R410A into the atmosphere : R410A is a fluorinated
• Do not perform any change of protective device itself or its setup
greenhouse gas, covered by the Kyoto Protocol with Groval
condition.
Warming Potential (GWP)=1975.
The forced operation by short-circuiting protective device of pressure
• Do not run the unit with removed panels or protections.
switch and temperature controller or the use of non specified component
Touching rotating equipments, hot surfaces or high voltage parts can cause can cause fire or burst.
personal injury due to entrapment, burn or electric shocks.
SELECTION OF INSTALLATION LOCATION
• Do not touch any refrigerant pipes with your hands when the
system is in operation.
During operation the refrigerant pipes become extremely hot or extremely
cold depending the operating condition, and it can cause burn injury or
frost injury.
5 cm minimum
from the wall
(Install at location that meets the following conditions, after getting approval from the customer)
6.5 cm minimum from the ceiling
Indoor unit
1
Installation board
(Attached to the rear of the indoor unit)
1
2
Wireless remote control
1
3
Remote control holder
1
4
Tapping screws
(for installation board ø4 X 25mm)
10
5
Wood screws
(for remote control switch holder ø3.5 X 16mm)
2
6
Battery [R03 (AAA, Micro) 1.5V]
2
7
Air-cleaning filters
2
8
Filter holders
(Attached to the front panel of indoor unit)
2
1
Insulation (#486 50 x 100 t3)
Option parts
Wireless remote control
○ A place where the air conditioner can be received the signal surely during operating the wireless remote control.
○ Places where there is no affected by the TV and radio etc.
○ Do not place where exposed to direct sunlight or near heat devices such as a stove.
INSTALLATION OF INDOOR UNIT
Installation of Installation board
1
Sleeve
1
-
113 -
Inclination plate
1
Putty
1
Drain hose (extension hose)
1
Piping cover
(for insulation of connection piping)
1
Bolt
(M6 12)
Mating mark for
level surface
2
Knife
3
Saw
level by turning the board
with the standard hole as
the center.
Relation between setting plate and indoor unit
Mounting
board
Max.10
INSTALLATION SPACE (INDOOR UNIT) (FRONT VIEW)
Indoor unit
Installation board
Space
50 for service
Standard
hole
106
ø65
Thickness of the wall + 1.5cm
Outdoor side
In case of piping in the right rear direction
Shaping of pipings
Wrench key (Hexagon) [4m/m]
Flaring tool set
11
12
13
Pipe bender
Taping of the exterior
Installed state
Piping hole (ø65)
(Unit : mm)
• Matters of special notice when piping from left or central/rear of the unit.
[Top view]
[Drain hose changing procedures]
Left-hand-side piping
Right-hand-side piping
Piping in the left rear direction
1. Remove the drain hose
2. Remove the drain cap.
Piping in the right rear direction
Piping in the left direction
Drain hose
specifically
( Designed
)
for R410A
Designed specifically
Gas leak detector (
)
for R410A
(
Outdoor side
77
Piping for Gas 633.5
Piping for Liquid 703.5
Drain hose 772 (ø16)
Pipings
~ 82.0N·m
( 14.0
(1.4 ~ 8.2kgf·m) )
Gauge for projection adjustment
Used when flare is made by using
conventional flare tool
Indoor side
Piping hole (ø65)
For bolt anchor
and nut anchor
)
○ Hold the bottom of the
piping and fix direction
before stretching it and
shaping it.
○ Tape only the portion
that goes through the
wall.
○ Always tape the wiring
with the piping.
Sufficient care must be taken not to damage
the panel when connecting pipes.
Piping in the right direction
Piping is possible in the rear, left, left rear, left downward, right or downward direction.
○ Remove the screw and drain hose,
making it rotate.
3. Insert the drain cap.
○ Remove it with hand or pliers.
4. Connect the drain hose.
Right
Rear
Left
Downward rear
Left
Left downward
○ Insert the drain cap which was removed ○ Insert the drain hose securely, making
at procedure “2” securely using a
rotate. And install the screw.
Note: Be careful that If it is not Inserted
hexagonal wrench etc.
Note: Be careful that If it is not Inserted
securely, water leakage may
securely, water leakage may occur.
occur.
'11 • SCM-DB-109
9
25
○ In case of rear piping draw out, cut off the lower
and the right side portions of the sleeve collar.
Hammer
10
106
299
50
53.5
Turn to
tighten
a
5
Hole core drill (65mm in diameter)
349
50
c
b
b Top
5
Installing the support of piping
8
Space
for service 100
886
450
Drilling of holes and fixture of sleeve (Option parts)
Tape measure
Torque wrench
Wood screws
be conducted with eight screws in a temporary tightened state.
4
Spanner wrench
Remote control holder
○ Adjust so the board will be
Indoor side
7
putty
○ Adjustment of the installation board in the horizontal direction is to
○ Drill a hole with whole core drill.
6
Sleeve (sold separately)
Nut
(M6)
Mounting
board
Necessary tools for the installation work
Plus headed driver
Outdoor side
putty
Fixing on concrete wall
Use of nut anchor
Use of bolt anchor
When drilling the wall that contains a metal lath, wire lath or metal plate, be sure to use pipe hole sleeve sold separately.
1
Indoor side
Wireless remote control
Look for the inside wall structures (Intermediats support or pillar
and firmly install the unit after level surface has been checked.)
610
450
Q’ty
Sealing plate
CAUTION
Completely seal the hole on
the wall with putty. Otherwise,
furniture, or other, may be
wetted by leaked water or
dewing.
49.5
9
Installation board
10 cm m
inim
from the um
wall
44.5
301.8
Q’ty
○ Where there is no obstructions to the air flow and where the cooled and heated air can be evenly distributed.
○ A solid place where the unit or the wall will not vibrate.
○ A place where there will be enough space for servicing. (Where space mentioned below can be secured)
○ Where wiring and the piping work will be easy to conduct.
○ The place where receiving part is not exposed to the direct rays of the sun or the strong rays of the street lighting.
○ A place where it can be easily drained.
○ A place separated at least 1m away from the television or the radio. (To prevent interference to images and sounds.)
○ Places where this unit is not affected by the high frequency equipment or electric equipment.
○ Avoid installing this unit in place where there is much oil mist.
○ Places where there is no electric equipment or household under the installing unit.
221.5
44.5
Standard accessories (Installation kit)
Accessories for indoor unit
65 Space
for service
○ Before installation check that the power supply matches the air conditioner.
• Locations where an equipment affected by high harmonics is placed (TV
set or radio receiver is placed within 1m).
• Locations where drainage cannot run off safely.
It can affect performance or function and etc.
• Do not install the unit near the location where leakage of
combustible gases can occur.
8.5
BEFORE INSTALLATION
insulation and over-current etc.
• Do not bundling, winding or processing for the power cord. Or, do
not deforming the power plug due to tread it.
This may cause fire or heating.
15 Space
for service 7.7
seriously affect the user’s health and safety. This can also cause the
corrosion of the indoor unit and a resultant unit failure or refrigerant leak.
• Ensure that no air enters in the refrigerant circuit when the unit is
installed and removed.
If air enters in the refrigerant circuit, the pressure in the refrigerant circuit
becomes too high, which can cause burst and personal injury.
RKW012A400A
Fixing of indoor unit
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.
Latch (2 locations)
Installation Steps
1 Pass the pipe through
the hole in the wall,
and hook the upper
part of the indoor unit
to the installation board.
Indoor unit
Gutter
• How to remove the indoor unit from the installation board
Wall
1 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)
2 Push up the indoor unit upward. So the indoor unit will be removed from the
installation board.
Pipe accommodating section
Drainage
2 Gently push the lower
part to secure the unit.
○ Arrange the drain hose in a downward angle.
○ Avoid the following drain piping.
CAUTION Go through all installation steps and check if the
drainage is all right. Otherwise water leak may occur.
Odor from
the gutter
Installation board
Installation board
Wall
Higher than specified
The marked portion of the indoor unit base lower latch.
The drain hose
tip is in water.
Wavy
The gap to the ground is
5 cm or less.
The drain hose
tip is in the gutter.
○ 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.
Indoor unit base latch
CONNECTION OF REFRIGERANT PIPINGS
Indoor
Press
Remove
(Do not turn)
-
114 -
○ Remove the flared nuts. (on both liquid and gas sides)
Dimension A
Liquid side ø6.35 : 9.1 (mm)
Gas side ø9.52 : 13.2 (mm)
ø12.7 : 16.6 (mm)
ø15.88 : 19.7 (mm)
A
CAUTION
Indoor
Do not apply refrigerating machine
oil to the flared surface.
○ Install the removed flared nuts to the pipes to be connected,
then flared the pipes.
• Flaring work
Copper pipe
Copper pipe diameter
Clutch type flare tool for
R410A
ø6.35
0.0 - 0.5
ø9.52
0.0 - 0.5
1.0 - 1.5
1.5 - 2.0
ø12.7
ø15.88
0.0 - 0.5
0.0 - 0.5
1.0 - 1.5
1.0 - 1.5
2.0 - 2.5
2.0 - 2.5
Insulation of the connection portion
Cover the coupling with insulator and then cover it with tapes.
Liquid side
Gas side
Vinyl tape
Conventional (R22) flare tool
Clutch type
Wing nut type
1.0 - 1.5
1.5 - 2.0
CAUTION
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
Do not apply excess torque to the flared nuts.
Otherwise, the flared nuts may check depending.
Refrigerant piping
Connection wiring,
Earth wiring
Outer tape
Drain hose
Wood screw
Clamp
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.
Open/close and detachment/attachment of the air inlet panel
How to remove and install the front 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.
○Removing
① Remove the air inlet panel.
② Remove the screw (A) 2pcs / screw
(B) 3pcs fixing to the front panel.
③ Remove the 3 latches in the upper
section of the front panel and then
remove the front panel from the unit.
○Installing
① Remove the air filter.
② Cover the unit with the front panel.
③ Tighten the screw (A) 2pcs / screw
(B) 3pcs to fix the front panel.
④ Install the air filter.
⑤ Install the air inlet panel.
Approx. 80°
Latch
Air inlet panel
Air filter
Screw (B)
Front panel
Screw (A)
Screw (A)
ELECTRICAL WIRING WORK
Preparation of indoor unit
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.
Screw (B)
Screw (B)
Installing the air-cleaning filters
CAUTION
In case of faulty wiring connection, the indoor unit stops, and
Terminal block
The screw of the lid is
tightened securely.
1. Open the air inlet panel and remove the air filters.
2. Install the filter holders, with the air-cleaning filters installed in the holders.
'11 • SCM-DB-109
To remove / To install
Use an attached insulation pad for heat insulation.
(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)
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)
Measurement B (mm)
Measurement B
Flaring
block
Connection
Keep the openings of the pipes covered with tapes etc. to prevent dust, sand, etc. from entering them.
90 ± 0.5˚
Preparation
③ Tighten the screw (A) 2pcs / screw
(B) 3pcs to fix the front panel.
④ Install the air filter.
⑤ Install the air inlet panel.
illustration, hold the panel at both ends of lower
part, lower it downward slowly, then push it
slightly until the latch works.
Screw (B)
ELECTRICAL WIRING WORK
Preparation of indoor unit
CAUTION
The screw of the lid is
tightened securely.
Lid
1
2
3
4
Open the air inlet panel.
Remove the lid.
Remove the wiring clamp.
Connect the connecting wire securely to the terminal block.
1) Connect the connection wire securely to the terminal
block. If the wire is not affixed completely, contact will be
poor, and it is dangerous as the terminal block may heat
up and catch fire.
2) Take care not to confuse the terminal numbers for indoor
and outdoor connections.
5 Fix the connecting wire by wiring clamp.
6 Attach the lid.
7 Close the air inlet panel.
Screw (B)
Screw (B)
Installing the air-cleaning filters
Terminal block
In case of faulty wiring connection, the indoor unit stops, and
then the run lamp turns on and the timer lamp blinks.
Mounting of connecting wires
Front panel
Screw (A)
Screw (A)
Use cables for interconnection wiring to avoid loosening of the
wires.
CENELEC code for cables Required field cables.
1. Open the air inlet panel and remove the air filters.
2. Install the filter holders, with the air-cleaning filters installed in the holders.
In the air conditioner.
• Each air-cleaning filter can be installed in the left or right filter holder.
3. Install the air filters and close the inlet panel.
1 2N 3
H05RNR4G1.5 (example) or 245IEC57
H Harmonized cable type
05 300/500 volts
R Natural-and/or synth, rubber wire insulation
N Polychloroprene rubber conductors insulation
R Stranded core
4or5 Number of conductors
G One conductor of the cable is the earth conductor
(yellow/green)
1.5 Section of copper wire (mm2)
Air-cleaning
filter
Wiring Clamp
Filter holder
INSTALLATION TEST CHECK POINTS
INSTALLATION OF WIRELESS CONTROL
Mounting method of battery
Fixing to pillar or wall
○ Uncover the wireless remote control, and mount the batteries
[R03 (AAA, Micro), ×2 pieces] in the body regularly.
(Fit the poles with the indication marks, + & − without fail)
○ Conventionally, operate the wireless remote control by holding
in your hand.
○ Avoid installing it on a clay wall etc.
-
115 -
CAUTION
Do not use new and
old batteries together.
6 Battery
Check the following points again after completion of the installation, and before turning on the power. Conduct a test run again and ensure that the unit operates properly.
At the same time, explain to the customer how to use the unit and how to take care of the unit following the user’s manual.
After installation
The power supply voltage is correct as the rating.
No gas leaks from the joints of the operation valve.
Power cables and crossover wires are securely fixed to the terminal board.
The screw of the lid is tightened securely.
Operation valve is fully open.
The pipe joints for indoor and outdoor pipes have been insulated.
Test run
2 Wireless remote control
Cover
5 Wood screws
ø3.5 X 16
HOW TO RELOCATE OR DISPOSE OF THE UNIT
○ In order to protect the environment, be sure to pump down (recovery of refrigerant).
○ Pump down is the method of recovering refrigerant from the indoor unit to the
outdoor unit when the pipes are removed from the unit.
• Forced cooling operation
Turn on a power supply again after a while after turn off a power supply.
Then press continually the ON/OFF button 5 seconds or more.
Air conditioning operation is normal.
No abnormal noise.
Water drains smoothly.
Protective functions are not working.
The remote control is normal.
Operation of the unit has been explained to the customer.
(Three-minutes restart preventive timer)
When the air conditioner is restarted or when changing the operation, the unit
will not start operating for approximately 3 minutes.
This is to protect the unit and it is not a malfunction.
CONCERNING TERMINAL CONNECTION FOR AN INTERFACE
1 Remove the air inlet panel, lid and front panel.
2 Remove the control cover. (Remove the screw.)
3 There is a terminal (respectively marked with CNS) for the indoor control board.
In connecting an interface, connect to the respective terminal securely with the connection harness
supplied with an optional “Interface connection kit SC-BIKN-E” and fasten the connection harness
onto the indoor control box with the clamp supplied with the kit.
For more details, please refer to the user’s manual of your “Interface connection kit SC-BIKN-E”.
Indoor unit PCB
Screw
Unit ON/OFF button
CNS terminal
'11 • SCM-DB-109
<How to pump down>
1 Connect charge hose to check joint of outdoor unit.
2 Liquid side : Close the liquid valve with hexagon wrench key.
Gas side : Fully open the gas valve.
Carry out cooling operation. (If indoor temperature is low, operate
forced cooling operation.)
3 After low pressure gauge become 0.01MPa, stop cooling operation
and close the gas valve.
Control cover
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