If you wish to prepare the copper tubes and insulation material in the field, we recommend the following.
FOR SERVICE PERSONNEL ONLY
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No.
Material
Specification
Carefully read through the procedures of proper
Small dia.
Large dia.
Small dia.
Large dia.
Small dia.
Large dia.
Small dia.
Large dia.
Deoxidized annealed copper pipe with 6.35mm O.D., 0.8mm wall thickness.
Deoxidized annealed copper pipe with 9.52mm O.D., 1.0mm wall thickness.
Deoxidized annealed copper pipe with 6.35mm O.D., 0.8mm wall thickness.
Deoxidized annealed copper pipe with 12.7mm O.D., 1.0mm wall thickness.
Flare nuts with 6.35mm O.D..
4.0kW or less
installation before starting installation work.
The sales agent should inform customers regarding
the correct operation of installation.
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Cooper tube
Flare nut
5.0kW or more
4.0kW or less
5.0kW or more
SPLIT UNIT AIR CONDITIONER
INSTALLATION MANUAL
Tools Needed For Installation Work
(Mark
is exclusive use tool for R410A)
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– Screwdriver Measuring Tape Knife
+
Saw
Flare nuts with 9.52mm O.D..
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ø 65mm Power Drill
Key ( 4mm) Wrench (14, 17, 22, 26mm)
Leakage Detector Pipe Cutter Putty Vinyl Tape
Hexagonal Wrench
Gas
2
3
Flare nuts with 6.35mm O.D..
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HFC
Outdoor Unit
RAM-72Q5
Flare nuts with 12.7mm O.D..
R410A
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Pliers Flare Tool
Vacuum Pump Adapter
Vacuum Pump
Foamed polyethylene insulation pipe which does not corrode the copper tube.
Large dia. pipe side: 15mm I.D.., 8mm wall thickness.
Small dia. pipe side: 8mm I.D., 7mm wall thickness.
Manifold Valve Charge Hose
Insulation for refrigerating pipe
SAFETY PRECAUTION
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Read the safety precautions carefully before operating the unit.
The contents of this section are vital to ensure safety. Please pay special attention to the following sign.
WARNING ........ Incorrect methods of installation may cause death or serious injury.
4
5
6
7
8
Connecting cord
Vinyl tape
Refer to item 3.3.
!
! CAUTION ......... Improper installation may result in serious consequence.
Make sure to connect earth wire.
This sign in the figures indicates prohibition.
Be sure that the unit operates in proper condition after installation. Explain to customer the proper way of operating
Sealer (Putty)
Refrigerator oil
Bushing for refrigerating pipes
the unit as described in the user’s guide.
1. Proper place for installation
1.1 Outdoor unit
!
WARNING
(1) Keep the space around the unit for maintenance and avoiding the effects of hindrance for normal ventilation of the unit.
(2) The northern or eastern side of the building is better to install. At the installation on the southern or western side unavoidably, some blind
should be set up for the unit. (In this case, the blind must not obstruct the ventilation of the unit.)
(3) You’d better not put the unit at a place where is full of dirt and at a place where is wet in the rain.
(4) Place as near as possible to the indoor unit.
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Please request your sales agent or qualified technician to install your unit. Water leakage, short circuit or fire may occur if you
do the installation work yourself.
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Please observe the instructions stated in the installation manual during the process of installation. Improper installation may
cause water leakage, electric shock and fire.
(5) Install the unit in a stable place to minimize vibration or noise.
(6) After arranging the cords and pipes, secure them in place.
Make sure that the units are mounted at locations which are able to provide full support to the weight of the units. If not, the
units may collapse and impose danger.
Observe the rules and regulations of the electrical installation and the methods described in the installation manual when
dealing with the electrical work. Use power cables approved by the authorities of your country.
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This appliance must be earthed.
Power is supplied through outdoor unit, do not connect power source to indoor unit.
WARNING
!
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Be sure to use the specified wire for connecting the indoor and outdoor units. Please ensure that the connections are tight
after the conductors of the wire are inserted into the terminals. Improper insertion and loose contact may cause over-heating
and fire.
2. In the electrical installation a separator with a contact gap of more than
3mm has to be installed. During cleaning or service the set has to be
switched off with this separator.
3.2 Connection of the connecting cords and power cord
(1) Cut off the connecting cord, the power cord and strip the
insulation of the wire, as shown in Fig. 3-2.
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Please use the specified components for installation work. Otherwise, the units may collapse or water leakage, electric shock
and fire may occur.
(2) Connect the connecting cord and power cord to the terminal
board. (Fig. 3-3)
(3) Fix the connecting cords and power cord with steel band
certainly. (Fig. 3-3)
3. Installation procedure and notice
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Be sure to use the specified piping set for R-410A. Otherwise, this may result in broken copper pipes or faults.
Especially, the selection of installation place need great care for the
split type air conditioner, because it is very difficult to move from place
to place after the first installation.
When installing or removing an air conditioner, only specified refrigerant (R410A) shall be allowed, do not allow air or moisture
to remain in the refrigeration cycle. Otherwise, pressure in the refrigeration cycle may become abnormally high so that a rupture
may be caused.
3.1 Wiring
30mm
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Green-and-yellow (ground)
Be sure to ventilate fully if a refrigerant gas leak while at work. If the refrigerant gas comes into contact with fire, a poisonous
gas may occur.
(1) Connect the electrical wiring between the Indoor and Outdoor unit,
as shown in Fig. 3-1. Never connect the wiring by mistake.
In case of wrong connection, the unit does not operate properly
and it may cause malfunction.
10mm
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After completion of installation work, check to make sure that there is no refrigeration gas leakage. If the refrigerant gas leaks
into the room, coming into contact with fire in the fan-driven heater, space heater, etc., a poisonous gas may occur.
10mm
55mm
Power cord and
connecting cord
(2) The connecting cord must be fixed by the band which is located
near the terminal board.
Unauthorized modifications to the air conditioner may be dangerous. If a breakdown occurs please call a qualified air conditioner
technician or electrician. Improper repairs may result in water leakage, electric shock and fire, etc.
Detail of cutting power cord
Wiring Pattern
Procedures of Wiring
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Be sure to connect the earth wire from the power supply wire to the outdoor unit and between the outdoor and indoor
unit. Improper earthing may cause electric shock.
60mm
Green-and-yellow (ground)
Indoor Unit
10mm
Indoor unit No. 1
Indoor unit No. 2
Indoor unit No. 3
Indoor unit No. 4
Screw for ground, earth screw
Screw for ground, earth screw
10mm
Screw for ground, earth screw
Screw for ground, earth screw
85mm
Connecting cord
!
CAUTION
Terminal board
Terminal board
Terminal board
Terminal board
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A circuit breaker must be installed in the house distribution box for the direct connected power supply wire to the outdoor unit.
In case of other installations a main switch with a contact gap or more than 3.5mm has to be installed. Without a
circuit breaker, the danger of electric shock exists.
Do not install the unit near a location where there is flammable gas. The outdoor unit may catch fire if flammable
gas leaks around it.
For Indoor Unit No. 1 (C1, D1),
Indoor Unit No. 2 (C2, D2),
Indoor Unit No. 3 (C3, D3) and
Indoor Unit No. 4 (C4, D4)
C
D
C
D
C
D
C
D
Green-and-
Yellow
Green-and-
Yellow
Green-and-Yellow
Green-and-Yellow
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Screw for ground,
earth screw
Fig. 3-2
Be sure to tighten the flare nut to the specified torque using a torque wrench. If the flare nut is tightened excessively, it may
crack as time elapses, cause refrigerant leakage.
Terminal board
C1 D1
Terminal board
C2 D2
Terminal board
C3 D3
Terminal board
C4 D4
Terminal board
L
N
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Please ensure smooth flow of water when installing the drain hose.
An IEC approved power cord should be used. Power cord type: NYM.
Screw for ground, earth screw
For Indoor unit No. 1
Screw for ground, earth screw
For Indoor unit No. 2
Screw for ground, earth screw
For Indoor unit No. 3
Screw for ground, earth screw
For Indoor unit No. 4
THE CHOICE OF MOUNTING SITE (Please note the following matters and obtain permission from customer before installation).
Green-and-Yellow
Power cord
Outdoor Unit
!
WARNING
Fig. 3-1
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The Outdoor unit must be mounted at a location which can support heavy weight. Otherwise, noise and vibration will increase.
!
WARNING
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!
The naked part of the wire core should be 10 mm and fix it to the terminal tightly. Then try to pull the individual wire to check if the contact is
CAUTION
tight. Improper insertion may burn the terminal.
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Do not expose the unit under direct sunshine or rain. Besides, ventilation must be good and clear of obstruction.
The air blown out of the unit should not point directly to animals or plants.
The clearances of the unit from top, left, right and front are specified in figure below. At least 3 of the above sides must be open
air.
Be sure that the hot air blown out of the unit and noise do not disturb the neighbourhood.
Do not install at a location where there is flammable gas, steam, oil and smoke.
The location must be convenient for water drainage.
Be sure to use only power cables approved from the authorities in your country. For example in Germany: Cable type: NYM 3x1.5mm2. (fuse
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= 16A time delay)
Please refer to the installation manual for wire connection to the terminals of the units. The cabling must meet the standards of electrical
installation.
There is a AC voltage of 220-240V between the L and N terminals. Therefore, before servicing, be sure to remove the plug from the AC outlet
or switch off the main switch.
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Place the Outdoor unit and its connecting cord at least 1m away from the antenna or signal line of television, radio or telephone.
This is to avoid noise interference.
Wiring of The Outdoor Unit
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Please remove the side cover for wire connection.
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If you cannot attach the side cover due to the connecting cord, press the connecting cord in direction to the front panel
Figure showing the Installation of Outdoor Unit.
to fix it.
!
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Be sure that the hooks of the side cover is fixed in certainly. Otherwise water leakage may occur and this causes short
circuit or faults.
The connecting cord should not touch to service valve and pipes. (It becomes high temperature in heating operation.)
Height difference
Piping length
Dimension of Mounting Stand
of the Outdoor unit
WARNING
Indoor unit 2 Indoor unit 3
Indoor unit 4
Indoor unit 1
Height difference between indoor units should
be not more than 5m.
(unit: mm)
3.3 Checking for the electric source and the voltage range
mounting stand
57
Indoor unit 3
Indoor unit 4
Outdoor unit
L1
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Before installation, the power source must be checked and necessary wiring work must be completed. To make the wiring capacity proper,
use the wire gauges list below for the lead-in from a pole transformer and for the wiring from a switch board of fuse box to the main switch
and outdoor unit in consideration of the locked rotor current.
L2
L3
L4
Indoor unit 2
Indoor unit 1
Outdoor unit
12
35
508
198
IMPORTANT
(L1 + L2 + L3 + L4) = Maximum 60m
Cable length
Wire cross-section
!
WARNING
Minimum piping length for each indoor unit is 5m.
Maximum piping length for one indoor unit is 25m.
In case the pipe length is more than 30m, add
refrigerant R410A at 20 gram per every meter exceeds.
up to 16m
up to 15m
up to 25m
1.5mm2
2.5mm2
4.0mm2
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Connect the Connecting Cord to C1 and D1 “Indoor 1” for indoor unit 1,
C2 and D2 “Indoor 2” for indoor unit 2, C3 and D3 “Indoor 3” for indoor
unit 3, C4 and D4 “Indoor 4” for indoor unit 4.
ꢀ When removing side cover, pull the handle after releasing
the hook by pulling it downward.
Bind connecting cords to make them
fit between the convex sections.
Connect the
earth cord
Face this side (suction side) of the unit
to the wall.
AC 220V — 240V ONLY
Remove side cover when
connecting the piping and
connecting cord.
INDOOR 1 INDOOR 2 INDOOR 3 INDOOR 4
L N
C1 D1 C2 D2 C3 D3 C4 D4
500
Pull downward
After remove the screw
and cover, put the
connecting cords and fix
the cover with screw.
[Outdoor unit installation]
ꢀ Mount the Outdoor unit on stable ground to prevent vibration and increase of
noise level.
!
CAUTION
ꢀ Decide the location for piping after sorting out the different types of pipe available.
!
CAUTION
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Make sure to connect to
two or more indoor units.
Arrange power cord so they do
not touch service valve.
Flare adaptor for piping
One unit of 1.8kW, 2.5kW,
3.5kW or 5.0kW
Earth line
Fig. 3-3
The flare adaptor for piping is required
depending on combination of indoor
units.
• ø9.52 (3/8”) ➝ ø 12.7 (1/2”)
Parts number TA261D-4 001
• ø12.7(1/2”) ➝ ø 9.52 (3/8”)
Parts number TA261D-6 002
Type of grounding rod
SP-EB-2
Length
900mm
One unit of 1.8kW, 2.5kW, 3.5kW or 5.0kW
(5kW unit: Optional flare adaptor for piping is necessary.)
Grounding rod
(optional)
One unit of 1.8kW, 2.5kW, 3.5kW, 5.0kW or 6.0kW
(5kW, 6kW unit: Optional flare adaptor for piping is necessary.)
(Earth wire and grounding rod are not supplied. Please use optional items below.)
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Investigate the power supply capacity and other electrical conditions at the installation location.
One unit of 1.8kW, 2.5kW, 3.5kW, 5.0kW or 6.0kW
(2.5kW, 3.5kW unit: Optional flare adaptor for piping is necessary.)
Depending on the model of room air conditioner to be installed, request the customer to make arrangements for the necessary electrical
work etc.
The electrical work includes the wiring work up the outlet. In localities where electrical conditions are poor, use of a voltage regulation is
recommended.
ꢀ To the outdoor unit, up to four indoor units can be connected until the total value of each units’s capacity reaches 11 kW.
ꢀ The pipe connection ports of the outdoor unit and connectable indoor units are shown above.
IMPORTANT
Fuse Capacity
30A time delay fuse
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