< S552 :
B
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Height difference
FOR SERVICE PERSONNEL ONLY
INVERTER SYSTEM MULTI TYPE
OUTDOOR UNIT INSTALLATION MANUAL
MODEL
RAM-70QH4
RAM-80QH4
• Carefully read through the procedures of proper installation before starting installation work.
• The sales agent should inform customers regarding the correct operation of installation.
• Explanation for indoor unit is in the “How To Use” (Instruction Manual) that packed with indoor unit.
Tools Needed For Installation Work
(Mark is exclusive use tool for R410A)
•
ª ·
Screwdriver • Measuring Tape • Knife • Saw • ø65mm Power Drill • Hexagonal Wrench
Key (
4mm) • Wrench (14,17,22,26,27mm) Gas Leakage Detector • Pipe Cutter • Putty
• Vinyl Tape • Pliers • Flare Tool
Vacuum Pump Adapter Manifold Valve Charge Hose
Vacuum Pump
• 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.
CAUTION ........ Improper installation may result in serious consequence.
Make sure to connect earth line.
This sign in the figures indicates prohibition.
Be sure that the unit operates in proper condition after installation. Explain to customer the proper
watt of operating the unit as described in the user’s guide.
SAFETY PRECAUTION
WARNING
• 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.
• Please observe the instructions stated in the installation manual during the process of installation. Improper
installation may cause water leakage, electric shock and fire.
• 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 wire which are approved official in your country. A
short circuit and fire may occur due to the use of low quality wire or improper work.
• 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.
• Please use the specified components for installation work. Otherwise, the unit may collapse or water
leakage, electric shock and fire may occur.
• When installing or transferring an air conditioner to another location, make sure that air other than the
specified refrigerant (R410A) does not enter the refrigeration cycle. If other air should enter, the pressure
level of the refrigeration cycle may increase abnormally which could result in a rupture and injury.
• Be sure to use the specified piping set for R410A. Otherwise, this may result in broken copper pipes or
faults.
• When installing or removing an air conditioner, 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.
• 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.
• 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.
• 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.
• Be sure to connect the earth line from the power supply wire to the outdoor unit and between
the outdoor and indoor unit. Improper earthing may cause electric shock.
CAUTION
• 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 3mm 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. Piping shall be suitable
supported with a maximum spacing of 1m between the supports.
• Please ensure smooth flow of water when installing the drain hose.
• An IEC approved power cord should be used. Power cord type : NYM.
Accessories to Outdoor unit:
No.
Item
Quantity
a
Drain pipe
1
b
Bushing
1
THE CHOICE OF MOUNTING SITE
(Please note the following matters and obtain permission from customer before installation.)
WARNING
• The outdoor unit must be mounted at a location which can support heavy weight. Otherwise, noise
and vibration will increase.
CAUTION
• 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 clearance of the unit from top, left, right and front are specified in figure below. At least two of
the above sides must be open air. If it is possible to open only two sides, make sure the discharging
side is one of them.
• 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.
• Place the outdoor unit and its connection wire at least 1m away from the antenna or signal line of
television, radio or telephone. This is to avoid noise interference.
RAM-70QH4
Piping length
(Within
±10m)
(Within
±10m)
Outdoor unit
Outdoor unit
RAM-80QH4
RAM-70QH4
RAM-80QH4
L
1
L
1
L
2
L
3
L
4
L
2
L
3
Indoor unit 1 Indoor unit 2
Indoor unit 3
Outdoor unit
L
1
+ L
2
+ L
3
= Maximum 60m
(However, L
1
+ L
2
= Maximum 35m)
Maximum piping length for one indoor unit is 25m.
*
Additional charge of refrigerant is not required.
(L
1
+ L
2
) = (L
3
+ L
4
) = Maximum 35m
Maximum piping length for one indoor unit is 25m.
*
Additional charge of refrigerant is not required.
Indoor unit 1 Indoor unit 2
Outdoor unit
Indoor unit 3 Indoor unit 4
[Outdoor unit installation]
•
The pipe connection ports of the outdoor unit and connectable indoor units are shown below. (Connection
of the compressors is as shown below.)
RAM-70QH4
•
To the outdoor unit, up to three indoor units can be connected until the total value of each unit’s
capacity from 5.0kW to 11.0kW.
One unit of 2.5kW or 3.5kW
One unit of 2.5kW, 3.5kW or
4.0kW
One unit of 2.5kW, 3.5kW, 4.0kW or 5.0kW
(5kW unit: Optional flare adaptor for piping is necessary.)
Outdoor unit pipe connection por
t
Compressor B
Compressor A
Indoor unit 3
Indoor unit 2
Indoor unit 1
ø6.35 (1/4")
ø9.52 (3/8")
ø6.35 (1/4")
ø9.52 (3/8")
ø6.35 (1/4")
ø9.52 (3/8")
RAM-80QH4
•
To the outdoor unit, up to four indoor units can be connected until the total value of each unit’s capacity
reaches 12.0kW. However, install indoor units so that total capacity of Indoor unit 1 and Indoor unit 2
and total capacity of Indoor unit 3 and Indoor unit 4 are approached. For example, when two 2.5kW
units and two 3.5kW units are to be connected, connect as shown below.
•
Connect 3 or more indoor units. If only two units are to be connected, connect them as Indoor unit 1
and Indoor unit 2 or Indoor unit 3 and Indoor unit 4. However, when two 3.5kW units are connected or
when one 2.5kW unit and one 4kW unit are connected, capacity may be less than indicated capacity.
One unit of 2.5kW or 3.5kW
One unit of 2.5kW, 3.5kW, 4.0kW or 5.0kW
(5kW unit: Optional flare adaptor for piping is necessary.)
One unit of 2.5kW or 3.5kW
One unit of 2.5kW, 3.5kW, 4.0kW or 5.0kW
(5kW unit: Optional flare adaptor for piping is necessary.)
Outdoor unit pipe connection por
t
Compressor B
Compressor A
Indoor unit 3
Indoor unit 2
Indoor unit 1
ø6.35 (1/4")
ø9.52 (3/8")
ø6.35 (1/4")
ø9.52 (3/8")
ø6.35 (1/4")
ø9.52 (3/8")
ø6.35 (1/4")
ø9.52 (3/8")
Indoor unit 1
Indoor unit 2
Indoor unit 3
Indoor unit 4
2.5kW
3.5kW
2.5kW
3.5kW
Total 7.0kW
Install so that both total capacities are approached.
Total 7.0kW
Total capacity of 4 units:
12.0kW or less
•
Remove electric box cover and three cord bands. Then, remove side panel and front panel in sequence.
(If side panel cannot be removed at this time, remove top cover.)
*
100mm or more
200mm or more
100mm or more
*
500mm or more
200mm or more
*
Keep as far away as possible.
Dimension of Mounting
Stand of the outdoor unit
(unit: mm)
150
500
12
370
20
Condensed Water Disposal of Unit
•
There is a hole on the base of outdoor unit for
condensed water to exhaust.
•
In order for condensed water to flow to the draining
part, install the unit on the level ground or block so
that the unit is 100mm above the ground same as
figure shown. Join the drain pipe to one hole and cover
the rest with bushing. If there are other holes or gaps,
cover them with putty to prevent water from leaking
out.
At first insert one portion of the hook to the base,
then pull the drain pipe in the direction shown by the
arrow while inserting the hook into the base. After
installation, check whether the drain pipe cling to the
base firmly.
If you wish to prepare the copper tubes and insulation material in the field, we recommend the following:
Deoxidized annealed copper pipe with 12.7mm O.D., 1.0mm wall thickness.
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.
Flare nuts with 6.35mm O.D..
Small dia.
4.0kW
or less
2
Flare
nut
Large dia.
Flare nuts with 9.52mm O.D..
Flare nuts with 6.35mm O.D..
Small dia.
5.0kW
Large dia.
Flare nuts with 12.7mm O.D..
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.
3
Insulation for refrigerating pipe
Deoxidized annealed copper pipe with 6.35mm O.D., 0.8mm wall thickness.
Small dia.
No.
Material
Specification
4.0kW
or less
1
Copper
tube
Large dia.
Small dia.
5.0kW
Large dia.
Refer to item 2.1.
4
Copper wire
5
Vinyl tape
6
Sealer (Putty)
7
Refrigerator oil
8
Bushing for refrigerating pipes
1.
Proper place for installation
1.1
Outdoor unit
(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.
2.
Checking of the power source and the voltage range
2.1
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 outlet in consideration of the locked rotor
current.
IMPORTANT
Important:
The wires in this main lead are coloured in accordance with the following code:
CAUTION
•
Since power is supplied through outdoor unit, do not connect power source to indoor unit.
Indoor unit 4
Wire length
Wire gauge
Up to 25m
4.0mm
2
• THIS APPLIANCE MUST BE EARTHED.
WARNING
NAMES OF EACH PART AND DIMENSIONS
Air outlet
Air intake
(Back, Left side)
Connecting cord and
insulation pipe for piping
Exhaust port (under)
In relation to outdoor unit
• Even if operation stops, fan is running for 10 to 60
seconds to reduce heat of electric components.
CAUTION
•
When heating operation, drain or defrosted water
flows out from outdoor unit. Don’t stop up drain
outlet portion in chilly area so as not to freeze
these.
MODEL
WIDTH
HEIGHT
DEPTH
RAM-70QH4
RAM-80QH4
850mm (32-1/2")
830mm (32-11/16")
340mm (13-3/8")
Above 100mm
b
Bushing
Outer diameter
above 16mm
a
Drain pipe
Drain hole
b
Bushing
Push
Push
Drain hole
Fuse capacity
32A time delay fuse
USE A FUSE AS FOLLOWING
IMPORTANT
2.2
Investigate the power supply capacity and other
electrical conditions at the installation location.
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.
2.3
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.
Installation procedure and notice
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.
3.1 Wiring
(1) Connect the electrical wiring between the Indoor and Outdoor unit, as shown in Fig. 3-1. Never
connect the wiring by mistake.
(2) The connecting cord must be fixed by the band which is located near the terminal board.
•
Please remove the side plate for wire connection.
Connecting cord
ø1.6 or 2.0
For Indoor unit No. 1
RAM-70QH4
Wiring Pattern
Indoor unit no.1
Indoor unit no.2
Indoor unit no.3
Screw for ground, earth screw
Screw for ground, earth screw
Screw for ground, earth screw
Terminal
board
Terminal
board
Terminal
board
Green-and-
Yellow
Green-and-
Yellow
Green-and-
Yellow
Connecting cord
ø1.6 or 2.0
Connecting cord ø1.6 or 2.0
Terminal board
Terminal board
Terminal board
Screw for ground,
earth screw
Green-and-Yellow
Power cord
Screw for ground, earth screw
Screw for ground, earth screw
Screw for ground,
earth screw
For Indoor unit No. 2
For Indoor unit No. 3
Terminal board
Indoor Unit
Outdoor Unit
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.
(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)
Detail of cutting connecting cord
Fig. 3-2
Detail of cutting power cord
Green-and yellow
(ground)
Connecting cord
50mm
40mm
14mm
10mm
Green-and yellow
(ground)
Power cord
60mm
50mm
14mm
10mm
•
If you cannot attach the side plate due to the connecting cord, please press the
connecting cord in direction to the front panel to fix it.
•
Be sure that the hooks of the side plate is fixed in certainly. Otherwise water
leakage may occur and this causes short circuit or faults.
•
The connecting cord should not touch the service valve and pipes. (It becomes
high temperature in heating operation.)
WARNING
Connecting cord
ø1.6 or ø2.0
RAM-80QH4
Indoor Unit
Fig. 3-1
Indoor unit no.1
Indoor unit no.2
Indoor unit no.3
Indoor unit no.4
Screw for ground, earth screw
Terminal
board
Screw for ground, earth screw
Terminal
board
Screw for ground,
earth screw
Terminal
board
Screw for ground, earth screw
Terminal
board
Green-and-
Yellow
Green-and-
Yellow
Green-and-
Yellow
Green-and-
Yellow
Connecting cord ø1.6 or ø2.0
Connecting cord
ø1.6 or ø2.0
Power cord
Green-and-
Yellow
Screw for ground, earth screw
Connecting cord
ø1.6 or ø2.0
For Indoor unit No. 1
For Indoor unit No. 2
For Indoor unit No. 3
For Indoor unit No. 4
Screw for ground,
earth screw
Screw for ground,
earth screw
Screw for ground,
earth screw
Screw for ground,
earth screw
Terminal board
Terminal board
Terminal board
Terminal board
Terminal board
Outdoor Unit
Flare adaptor for piping
The flare adaptor for piping is
required depending on
combination of indoor units.
• ø9.52 (3/8")
→
ø12.7 (1/2")
parts number HFD43D-4 001
Indoor unit 1 Indoor unit 2 Indoor unit 3
Indoor unit 1 Indoor unit 2 Indoor unit 3 Indoor unit 4
Height difference between indoor units
should be not more than 5m.
Height difference between indoor units
should be not more than 5m.
Mounting
stand
Wind
