Hitachi RAM-130QH5 Installation Manual

FOR SERVICE PERSONNEL ONLY
SPLIT UNIT AIR CONDITIONER
INSTALLATION MANUAL
Outdoor Unit RAM-130QH5
HFC
R410A

SAFETY PRECAUTION

G Read the safety precautions carefully before operating the unit.
G 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 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
the unit as described in the user's guide.
!
G
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.
G
Please observe the instructions stated in the installation manual during the process of installation. Improper installation may cause water
leakage, electric shock and fire.
G
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.
G 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.
G 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.
G
Please use the specified components for installation work. Otherwise, the units may collapse or water leakage, electric shock and fire may
occur.
G
Be sure to use the specified piping set for R-410A. Otherwise, this may result in broken copper pipes or faults.
G
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.
G 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.
G 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.
G
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.
G 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.
!
G 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.
G 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.
G 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.
G
Please ensure smooth flow of water when installing the drain hose.
G
An IEC approved power cord should be used. Power cord type: NYM.
THE CHOICE OF MOUNTING SITE
(Please note the following matters and obtain permission from customer before installation).
G The Outdoor unit must be mounted at a location which can support heavy weight. Otherwise, noise and vibration will increase.
G Do not expose the unit under direct sunshine or rain. Besides, ventilation must be good and clear of obstruction.
G
The air blown out of the unit should not point directly to animals or plants.
G
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.
G Be sure that the hot air blown out of the unit and noise do not disturb the neighbourhood.
G
Do not install at a location where there is flammable gas, steam, oil and smoke.
G The location must be convenient for water drainage.
G
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.
Figure showing the Installation of Outdoor Unit.
Height difference
Height difference between indoor units should be not more than 5m.
Indoor unit 1 Indoor unit 2 Indoor unit 3 Indoor unit 4
Outdoor unit
Piping length
Indoor unit 1 Indoor unit 2 Indoor unit 3 Indoor unit 4
Outdoor unit
L1
L2
L3
(L1 + L2 + L3) = (L4 + L5 + L6) = Maximum 45m
However (L2 + L3) = (L5 + L6) = Maximum 35m
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 35m, add refrigerant R410A at 20 gram per every meter exceeds.
Flare adaptor for piping
! CAUTION
The flare adaptor for piping is required
depending on combination of indoor units.
G Make sure to connect to
ø9.52(3/8") ➝ ø 12.7 (1/2")
G
four or more indoor units.
Parts number TA261D-4 001
The pipe connection ports of the outdoor unit and connectable indoor units
are shown below.
One unit of 1.8kW, 2.5kW or 3.5kW
One unit of 1.8kW, 2.5kW or 3.5kW
One unit of 1.8kW, 2.5kW, 3.5kW or 5.0kW
(5kW unit: Optional flare adaptor for piping is
necessary.)
One unit of 1.8kW, 2.5kW or 3.5kW
One unit of 1.8kW, 2.5kW or 3.5kW
One unit of 1.8kW, 2.5kW, 3.5kW or 5.0kW
(5kW unit: Optional flare adaptor for piping is
necessary.)
FOUR INDOOR UNITS SHOULD BE CONNECTED AT LEAST
INDOOR 3 AND INDOOR 6 CONNECTION AT OUTDOOR UNIT IS COMPULSORY. IF
NOT THERE WILL AN ICING AT THE CONDENSER BASE DURING WINTER SEASON.
To the outdoor unit, up to three indoor units can be connected until the total value of
each units's capacity reaches 9 kW.
< >
IA181: A
G Carefully read through the procedures of proper
installation before starting installation work.
G The sales agent should inform customers regarding
the correct operation of installation.
Tools Needed For Installation Work
(Mark is exclusive use tool for R410A)
G + – Screwdriver G Measuring Tape
Saw G ø 65mm Power Drill G Hexagonal Wrench
Key ( 4mm) G Wrench (14, 17, 22, 26mm)
Leakage Detector G Pipe Cutter G Putty
G Pliers G Flare Tool Vacuum Pump Adapter
Manifold Valve Charge Hose
WARNING
CAUTION
! WARNING
CAUTION
!
When removing side cover, pull the handle
after releasing the hook by pulling it
downward.
Face this side (suction side)
of the unit to the wall.
Indoor unit 5 Indoor unit 6
Indoor unit 5 Indoor unit 6
Names of Outdoor Components
L4
L5 L6
No. Item
Bush
10
Drain Pipe
11
Bush
12
CONDENSED WATER DISPOSAL OF OUTDOOR UNIT
There are holes on the base of Outdoor unit for condensed
water to exhaust.
In order to flow condensed water to the drain, the unit is
installed on a stand or a block so that the unit is 100mm
above the ground as shown figure. Join the drain pipe to
one hole.
At first insert one portion of the hook to the base (Portion
A), then pull the drain pipe in the direction shown by the
arrow while inser ting the hook into the base. After
installation, check whether the drain pipe cling to the base
firmly.
A
BASE
DRAIN PIPE
11
12 BUSH
When Using and Installing In Cold Areas
When the air conditioner is used in low temperature and in
snowy conditions, water from the heat exchanger may freeze
on the base surface to cause poor drainage. When using the
air conditioner in such areas, do not install the bushings. Keep
a minimum of 250mm between the drain hole and the ground.
When using the drain pipe, consult your sales agent.
For more details, refer to the installation Manual for Cold
Areas.
If you wish to prepare the copper tubes and insulation material in the field, we recommend the following.
No. Material
4.0kW or less
1 Cooper tube
5.0kW
4.0kW or less
G Knife G
2 Flare nut
Gas
5.0kW
G Vinyl Tape
Vacuum Pump
3 Insulation for refrigerating pipe
4 Connecting cord
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.
(5) Install the unit in a stable place to minimize vibration or noise.
(6) After arranging the cords and pipes, secure them in place.
G This appliance must be earthed.
WARNING
!
G Power is supplied through outdoor unit, do not connect power source to indoor unit.
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. 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.
In case of wrong connection, the unit does not operate properly
and it may cause malfunction.
(2) The connecting cord must be fixed by the band which is located
near the terminal board.
Procedures of Wiring
Indoor unit No. 1 Indoor unit No. 2
Screw for ground, earth screw Screw for ground, earth screw
Terminal board Terminal board
C D C D
Green-and-
Connecting cord
Yellow
Ø1.6 or 2.0
C1 D1 C2 D2
Terminal board Terminal board
Screw for ground, earth screw Screw for ground, earth screw
For Indoor unit No. 1 For Indoor unit No. 2
G 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
tight. Improper insertion may burn the terminal.
Be sure to use only power cables approved from the authorities in your country. For example in Germany: Cable type: NYM 3x2.5mm
G
(fuse = 30A time delay)
G Please refer to the installation manual for wire connection to the terminals of the units. The cabling must meet the standards of electrical
installation.
G There is a AC voltage of drop between the L and N terminals. Therefore, before servicing, be sure to switch off the main switch.
Wiring of The Outdoor Unit
Please remove the side cover for wire connection.
G
If you cannot attach the side cover due to the connecting cord, press the connecting cord in direction to the front panel to fix it.
G
!
G 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.
WARNING
G The connecting cord should not touch to service valve and pipes. (It becomes high temperature in heating operation.)
Remove side
cover when
3.3 Checking for the electric source and
connecting
the piping
the voltage range
and
G Before installation, the power source must be
connecting
checked and necessary wiring work must be
cord.
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
Pull downward
outdoor unit in consideration of the locked rotor
current.
Investigate the power supply capacity and other
G
electrical conditions at the installation location.
Depending on the model of room air conditioner
Qty to be installed, request the customer to make
arrangements for the necessary electrical work etc.
The electrical work includes the wiring work up
3
the outlet. In localities where electrical conditions
are poor, use of a voltage regulation is
recommended.
1
IMPORTANT
Fuse Capacity
30A time delay fuse
1
[Outdoor unit installation]
Mount the Outdoor unit on stable ground by
removed the 2 anchor bolt from wood pallet
and plug-in into the concrete ground to
prevent vibration and high noise level.
Decide the location for piping after sorting
out the different types of pipe available.
above 200mm
( above 50mm when
)
installed on the
ceiling of balcony
10 BUSH
DRAIN PIPE
above 100mm
above 700mm
Small dia. Deoxidized annealed copper pipe with 6.35mm O.D., 0.8mm wall thickness.
Large dia. Deoxidized annealed copper pipe with 9.52mm O.D., 1.0mm wall thickness.
Small dia. Deoxidized annealed copper pipe with 6.35mm O.D., 0.8mm wall thickness.
Large dia. Deoxidized annealed copper pipe with 12.7mm O.D., 1.0mm wall thickness.
Small dia. Flare nuts with 6.35mm O.D..
Large dia. Flare nuts with 9.52mm O.D..
Small dia. Flare nuts with 6.35mm O.D..
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.
Refer to item 3.3.
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)
30mm
10mm
10mm
55mm
Detail of cutting power cord,
For Indoor Unit No. 1 (C1, D1) and
Indoor Unit No. 4 (C4, D4)
Wiring Pattern
Indoor Unit
Indoor unit No. 3 Indoor unit No. 4 Indoor unit No. 5
Screw for ground, earth screw
Screw for ground, earth screw Screw for ground, earth screw
Terminal board Terminal board Terminal board Terminal board
C D C D C D
Green-and-
Green-and- Green-and- Green-and-
Yellow
Yellow Yellow Yellow
C3 D3 C4 D4 C5 D5
Terminal board Terminal board Terminal board Terminal board
Screw for ground, earth screw Screw for ground, earth screw Screw for ground, earth screw Screw for ground, earth screw
For Indoor unit No. 3 For Indoor unit No. 4 For Indoor unit No. 5 For Indoor unit No. 6
Outdoor Unit
Fig. 3-1
WARNING
!
!
G 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, C5 and D5 "Indoor 5" for indoor unit 5, C6 and
D6 "Indoor 6" for indoor unit 6.
IMPORTANT
Cable length Wire cross-section
up to 16m 1.5mm
up to 15m 2.5mm
up to 25m 4.0mm
Bind connecting
cords to make them
fit between the
convex sections.
above 100mm
Earth line
give clearance as
Type of grounding rod
wide as possible
SP-EB-2
Grounding rod (optional)
above 200mm
(Earth wire and grounding rod are not supplied.
Please use optional items below.)
Anchor Bolt (4 places)
Specification
Green-and-
60mm
Green-and-
yellow (ground)
yellow (ground)
10mm
10mm
85mm
Connecting cord
Power cord and
connecting cord
For Indoor Unit No. 2 (C2, D2),
Indoor Unit No. 3 (C3, D3),
Indoor Unit No. 5 (C5, D5) and
Indoor Unit No. 6 (C6, D6)
Fig. 3-2
Indoor unit No. 6
Screw for ground, earth screw
C D
Green-and-Yellow
Connecting cord
Ø1.6 or 2.0
Terminal board
C6 D6
Screw for ground,
L N
earth screw
Green-and-Yellow
Power cord
2 .
WARNING
2
2
2
INDOOR 1 INDOOR 2 INDOOR 3
C1 D1 C2 D2 C3 D3
After remove the
screw and cover,
put the connecting
cords and fix
the cover with
screw.
Connect the
earth cord
AC 220V~240V ONLY
INDOOR 4 INDOOR 5 INDOOR 6
L N
C4 D4 C5 D5 C6 D6
After remove the
screw and cover,
put the connecting
cords and fix
the cover with
screw.
Length
900mm
CAUTION
!
Arrange power cord so they do
not touch service valve.
Fig. 3-3