Hitachi RAS-10CH9, RAC-10CH9 user guide manual

FOR SERVICE PERSONNEL ONLY
above 50mm
above 100mm
above
0.45m
above 300mm
must not bend
above 100mm
2,300mm or more
1
2
4
5
3
Maximum pipe length 10m
Minimum pipe length 5m
Plug
6
above 100mm
above 300mm
above 200mm
above 100mm
give clearance
as wide as possible
above 50mm when installed on the ceiling of balcony
above 200mm
Maximum pipe length 15m
Minimum pipe length 5m
above 200mm
above 700mm
above 200mm
)
above 100mm
above 100mm
give clearance as wide as possible
above 50mm when installed on the ceiling of balcony
(
!
Connecting cords, pipe and drain hose must be laid together with Vinyl tape.
[Push] mark positions
Drain hoseDrain cap
Bending upwards
Condensed water pond
Ditch
Condensed water pond
Carefully read through the procedures of proper installation before starting installation work.
The sales agent should inform customers regarding the correct operation of installation.
SPLIT UNIT AIR CONDITIONER
INSTALLATION MANUAL
Indoor Unit Outdoor Unit
RAS-08CH9/RAS-08CH9(B) RAC-08CH9 RAS-10CH9/RAS-10CH9(B) RAC-10CH9 RAS-14CH9/RAS-14CH9(B) RAC-14CH9
SAFETY PRECAUTION
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.
!
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.
!
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 power cables approved by the authorities of your country.
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 units may collapse or water leakage, electric shock and fire may occur.
Be sure to use the specified piping set for R22. 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.
!
CAUTION
A circuit breaker or fuse must be installed. Without a circuit breaker or fuse the danger of electric shock exists. A main switch with a contact gap of more than 3mm has to be installed in the power supply line to the outdoor unit.
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.
Please ensure smooth flow of water when installing the drain hose.
Piping shall be suitable supported with a maximum spacing of 1m between the supports.
Tools Needed For Installation Work
+ – Screwdriver
Saw ● ø 65mm Power Drill ● Hexagonal Wrench Key ( 4mm) Leakage Detector
Tape
Pliers ● Flare Tool
Measuring Tape
Wrench (14, 17, 22mm)
Pipe Cutter
Putty
Knife
Gas
Vinyl
THE CHOICE OF MOUNTING SITE (Please note the following matters and obtain permission from customer before installation).
!
The unit should be mounted at stable, non-vibratory location which can provide full support to the unit.
No nearby heat source and no obstruction near the air outlet is allowed.
The clearance distances from top, right and left are specified in figure below.
The location must be convenient for water drainage and pipe connection with the Outdoor unit.
To avoid interference from noise please place the unit and its remote
INDOOR UNIT
controller at least 1m from the radio, television and inverter type fluorescent lamp.
To avoid any error in signal transmission from the remote controller, please put the controller far away from high-frequency machines and high-power wireless systems.
The installation height of indoor unit must be 2.3m or more.
Names of Indoor Components
Hanger
1
Screw for Hanger
2
Holder for Remote Controller
3
AAA Size Battery
4
Screw for holder of Remote Controller
5
Remote Controller
6
Purifying Filter
7
Holder
8
(4.1x32)
(3.1x16)
WARNING
!
CAUTION
The Length of Indoor Unit
QtyNo. Item
Connecting Cord
0.8m
1
Direction of Piping
6
There are 4 directions
1
allowed, namely, horizontally perpendicular to the unit, vertically down from right, horizontally out from right and
2
horizontally out to left. Don’t form the piping downward at the left of the unit.
For RAC-08/10CH9 only
2
Dimension of Mounting Stand
of the Outdoor unit
(unit : mm)
mounting stand
1
1
1
Connection
500
Names of Outdoor Components
QtyNo. Item
Drain Pipe
9
Bush
0
Bush
!
Bush
@
For RAC-08/10CH9 only
For RAC-14CH9 only
For RAC-14CH9 only
1
For RAC-14CH9 only
2
Dimension of Mounting Stand
of the Outdoor unit
(unit : mm)
2
mounting stand
1
500
Horizontally perpendicular to the unit
35
57
12 35
124
100
12
35
1.5m
The Outdoor unit must be mounted at a location which can sup­port heavy weight. Otherwise, noise and vibration will increase.
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.
OUTDOOR UNIT
The location must be convenient for water drainage.
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.
Do not install outdoor unit facing strong wind direction. It may damage the fan motor.
Figure showing the Installation of Indoor and Outdoor Unit.
Be sure to completely seal any gap with putty.
8
225
10
320
340
20
(10)
!
WARNING
!
CAUTION
For RAC-14CH9 only
!
CAUTION
The installation height
of indoor unit must be
2.3m or more.
The indoor piping should be insulated with the enclosed insulation pipe. (If the insulator is insufficient, please use commersial products).
The difference in height between
the indoor and outdoor unit should be kept max 10m.
The connecting pipe, no matter big
or small, should all be insulated with insulation pipe and then wrapped with vinyl tape. (The insulator will deteriorate if it is not wrapped with tape).
The connection of insulated drain hose.
inner diameter ø 16mm
Please use insulated drain hose for the indoor piping (commercial product).
1
Installation of Hanger, Wall Penetration and Installation of Protection Pipe
The draining of the water container inside the indoor unit can be done from the left. Therefore the hanger must be fixed horizontally or slightly tilted towards the side of drain hose. Otherwise, condensed water may overflow the water container.
Direct Mounting On The Wall
Please use hidden beams in the wall to hold the hanger.
200mm
125mm
45mm
60mm
Screw for Hanger
Please use more than 4 screws.
Procedures of Installation and Precautions
Procedures to fix the hanger.
1.Drill holes on wall. 2. Push plug into the holes. 3. Fix the hanger on wall (As shown below) (As shown below) with 4.1 x 32 screw
INDOOR UNIT
Procedures to fix the holder of remote control.
1.Drill holes on wall. 2. Push plug into the holes. (As shown below) (As shown below)
Wall Penetration and Installation of Protection Pipe
Drill a ø 65mm hole on wall which is slightly tilted towards the outdoor side. Drill the wall at a small angle.
Cut the protection pipe according to the wall thickness.
Empty gap in the sleeve of protection pipe should be completely sealed
(EN1) INS RAS/RAC-8/10/14CH9 17/3/09, 9:241
with putty to avoid dripping of rain water into the room.
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IA535: A
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Seal with putty
Protection pipe
!
CAUTION
80mm
780mm
WALL
Mark
OutdoorIndoor
Seal with putty
Sleeve of protection pipe
125mm
280mm
45mm 115mm
450mm
Line
Weight
(As shown in figure below)
2 ~ 5mm
!
Be sure that the wire is not in contact with any metal in the wall. Please use the protection pipe as wire passing through the hollow part of the wall so as to prevent the possibility of damaged by mouse. Unless it seals completely, any air with high humidity flows from outdoor and any dew may drop.
Level
Hole for pipe
WARNING
Hanger
2
Installation of the Indoor Unit
VERTICALLY DOWNWARD PIPING
Preparation
Connect connecting cord.
Pull out the pipe, connecting cord and drain hose.
Installation
The upper part of the Indoor unit is hanged on the hanger.
The projection at the lower part of the Indoor unit is hooked onto the hanger.
Hanger
Protection Pipe
Drain Hose
Refrigerating Pipe
Connecting Cord
Lift the body of the unit upwards and then force it downwards.
1
2
Hanger
Please pull the lower part of the Indoor unit outwards to check if the unit is hooked onto the hanger. Improper installation may cause vibration and noise.
Projection
CAUTION
HOW TO REMOVE INDOOR UNIT
Push up the (PUSH) sections at the bottom of the indoor unit and pull the bottom plate towards you. Then the claws are released from the stationary plate. (The (PUSH) sections are indicated by 2 arrows in the right figure)
HORIZONTAL PIPING
Preparation
Change of Drain Hose and Installation Procedures.
Exchange the location of drain hose and drain cap during horizontal piping as shown in figure below. Be sure to plug in the drain hose until the insulating material folds upon itself.
Please use pliers to pull out the drain cap. (This is an easier way to remove the drain cap).
!
CAUTION
Drain cap
Please insert until here
Condensed water may leak out if not inserted properly.
Drain hose
Please insert until here
HORIZONTAL & DOWNWARD PIPING – MAKING OPENINGS
During horizontal or downward piping, use a knife to cut openings as shown in figure. Then smoothen the edges of openings with a file.
Pipe support
Pull up the pipe after bending downward
Turn the piping while holding down the lower portion of pipe-support by hand.
Openings
INSTALLATION OF REFRIGERATING PIPES AFTER CONNECTION
The refrigerating pipes should be adjusted to fit into the hole on the wall and then ready for further connection.
The terminals of 2 connected pipes must be covered with insulator used for terminal connection. Then the pipes are wrapped with insulation pipe.
Connect the connecting cord after removing electrical cover. (Refer to CONNECTION OF POWER CORD”)
After adjustment, fit the connecting cord and pipes into the space available under the indoor unit. Use holder to hold them tight.
8
Insulation pipe (must be wrapped with vinyl tape at every 120mm).
Holder can be attached at the either of 2 places. Please select the easier position.
Holder
Pipe
!
CAUTION
The rubber strap used for fixing the insulator should not be tied with great force. Otherwise, this will damage heat insulation and causes water condensation.
Rubber strap tied with great force
Pipe
Drain hose
Connecting cord
THE CONNECTION OF REFRIGERATING PIPE DURING THE INSTALLATION OF INDOOR UNIT
Preparation To Install Refrigerating Pipes
The refrigerating pipes and connecting cord transform and are attached.
The end of the refrigerating pipes are at locations marked with
symbol.
0.85m
Please bend at a small radius to form an arc
Installation
Hang the Indoor unit onto the hanger. Use the temporary stand at the back of the Indoor unit to push its lower part 15cm forwards.
Place the drain hose through the hole on the wall.
Wrap the refrigerating pipes with insulation pipe after connecting refrigerating pipe.
Connect the connecting cord after removing electrical cover. (Refer to Connection of Power Cord”)
After adjustment, the connecting cord and refrigerating pipes are placed into the space available under the Indoor unit.
The projection of Indoor unit must hook to the hanger.
Heat insulation pipe
Connecting cord
Refrigerating pipe
3
Installation of Drain Hose
You are free to choose the side (left or right) for the installation of drain
!
CAUTION
hose. Please ensure the smooth flow of condensed water of the Indoor unit during installation. (Carelessness may result in water leakage.)
Pull this to the front during the connection of refrigerating pipes to ease task.
!
CAUTION
Please fix in the plastic core after flaring to avoid plastic chips entering the pipes.
Projection
Protection pipe
Drain hose
Connecting cord
Holder
!
CAUTION
Be sure that the drain hose is not loosely connected or bend.
below 5mm
Hook
about 15cm
Connected section
Connection wire is put under here
Side cover
A
B
C
D
Connection wire
Screw for earth line
HITACHI
Step
Shaft
Hole
OFF
O Z
Mount the outdoor unit on stable ground to prevent vibration and increase of noise level.
Decide the location for piping after sorting out the different types of pipe available.
Procedure to remove the cover of wiring terminals
Remove the screw (1 piece).
Hold the projected part at the lower left of the cover and push the cover upwards to remove it.
To close the cover, insert the upper part of the cover into the body of outdoor unit, then be sure that the hook below the cover is plugged in before screwing.
Hook
Please face this side (suction side) of the unit to the wall
Please remove the cover for wire connection.
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 inserting the hook into the base. After installation, check whether the drain pipe cling to the base firmly.
A
BASE
DRAIN PIPE
When using in cold region, etc.
In cold region with severe cold climate and heavy snow, water discharged from heat exchanger freeze on the base surface and this may affect drainage. In such a region, remove bush on the bottom face of outdoor unit for better drainage. When using drainpipe, consult our dealer.
For RAC-14CH9 only
Please mount the Outdoor unit on stable ground to prevent vibration
OUTDOOR UNIT
and increase of noise level.
Decide the location for piping after sorting out the different types of pipe available.
When removing side cover, please pull the handle after undoing the hook by pulling it downward.
100 mm ABOVE
10
Bush
Please face this side (suction side) of the unit to the wall.
Please remove side cover when connecting the piping and connecting cord.
Pull downward
9
Drain Pipe
1
Preparation of Pipe
Use a pipe cutter to cut the copper pipe.
Trimming tool
Copper pipe
!
CAUTION
Jagged edge will cause leakage.
Point the side to be trimmed downwards during trimming to prevent copper chips from entering the pipe.
Before flaring, please put on the flare nut.
Die
Outer Diameter (mm)
6.35
9.52
12.70
2
Pipe Connection
In case of removing flare nut of an Indoor unit, first remove a nut
!
CAUTION
Please be careful when bending the copper pipe.
Screw in manually while adjusting the center. After that, use of torque wrench to tighten the connection.
Wrench
of small diameter side, or a seal cap of big diameter side will fly out. Prevent water from entering into the piping when working.
Small dia. side
Flare nut
Large dia. side
Torque wrench
head cap
INSTALLATION OF REFRIGERATING PIPES AND AIR REMOVAL
Valve core cap
WARNING
!
Procedures of Wiring
In case that power is supplied from Indoor Unit
Line Cord
AC 220-240V
Indoor Unit
L
N
Die
A
Copper pipe
A (mm)
For R410A tool
0.0
0.5mm
~
0.5mm
0.0
~
0.0
0.5mm
~
dia.of pipe
6.35 (1/4")
9.52 (3/8")
12.7 (1/2")
Valve
Small dia. side
Large dia. side
6.35 (1/4")
9.52 (3/8")
12.7 (1/2")
THIS APPLIANCE MUST BE EARTHED.
Outdoor Unit
2.0
Connecting Cord
1.6 or 2.0
DCBADCBA
Please use exclusive tool
For R22 tool
1.0mm
1.0mm
1.0mm
Outer
13.7 – 18.6 (140 – 190)
34.3 – 44.1 (350 – 450)
44.1 – 53.9 (450 – 550)
19.6 – 24.5 (200 ~ 250)
19.6 – 24.5 (200 ~ 250)
29.4 – 34.3 (300 – 350)
12.3 – 15.7 (125 ~ 160)
Torque N·m
(kgf · cm)
Wiring Of The Indoor Unit
For wire connection of the Indoor unit, you need to remove low cover and front cover.
Method to remove front cover.
Refer to FINAL STAGE OF INSTALLATION – How to Remove The Front Cover”.
Power line Control line
30mm
10mm
30mm
10mm
3
Removal Of Air From The Pipe And Gas Leakage Inspection
Procedures of using Vacuum Pump for Air Removal
As shown in right figure, remove the cap of valve core. Then, connect the charge hose. Remove the cap of valve head.
1
Connect the vacuum pump adapter to the vacuum pump and connect the charge hose to the adapter.
Fully tighten the “Hi” shuttle of the manifold valve and completely unscrew the “Lo” shuttle. Run the vacuum pump
2
for about 10–15 minutes, then completely tighten the “Lo” shuttle and switch off the vacuum pump.
AIR REMOVAL
Completely unscrew the spindle of the service valve (at 2 places) in anti-
3
clockwise direction to allow the flow of coolant (using Hexagonal Wrench key).
Remove the charge hose and tighten the cap of valve head. Check the cap’s
4
periphery if there is any gas leakage. The task is then completed.
Gas Leakage Inspection
Please use gas leakage detector to check if leakage occurs at the connection of Flare nut as shown on the right.
If gas leakage occurs, further tighten the connection to stop leakage.
Method to remove the low cover
Pull the cover at 1 and 2 in the directions as shown by arrows to remove the cover.
When the meter reaches - 101KPa (-76cmHg) during pumping, fully tighten the shuttle.
Valve
When pumping starts, slightly loosen the flare nut to check of air sucked in. Then tighten the flare nut.
Cap of valve head
After remove the screw and cover, and put the connecting cords and fix the cover with screw.
For RAC-08/10CH9
Charge hose
Meter showing pressure
Lo Hi
Valve
Vacuum pump adapter
The body of service valve
Cap of
valve core Hexagonal Wrench Key
Cap of valve head
Closed
Manifold valve
Vacuum pump
Wiring of The Outdoor Unit
Please remove the side cover for wire connection.
If you cannot attach the side cover due to the connecting cord, press the connecting cord in
!
WARNING
direction to the front panel to fix it.
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.)
Checking for the electric source and the voltage range
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.
IMPORTANT
Cable length
up to 16m
up to 15m
up to 25m
I
H
C
A
IT
H
Wire cross-section
2
1.6mm
2
2.5mm
2
4.0mm
How to Attach the Front Cover
1 Check that the drain pan is securely attached.
2 After installing the front cover onto the unit, hook three
3 Tighten the two screws.
claws at upper side of the cover securely. Then, push the center of the front cover to lock the claws.
For RAC-14CH9 only
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 outdoor. In localities where electrical conditions are poor, use of a voltage regulation is recommended.
IMPORTANT
Fuse Capacity
10A time delay fuse
C
D
BA
Earth terminal
For RAC-14CH9 only
Fuse Capacity
15A time delay fuse
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 inserting the hook into the base. After installation, check whether the drain pipe cling to the base firmly.
A
BASE
DRAIN PIPE
When using in cold region, etc.
In cold region with severe cold climate and heavy snow, water discharged from heat exchanger freeze on the base surface and this may affect drainage. In such a region, remove bush on the bottom face of outdoor unit for better drainage. When using drainpipe, consult our dealer.
1
Insulation And Maintenance Of Pipe Connection
The connected terminals should be completely sealed with heat insulator and then tied up with rubber strap.
Please tie the pipe and power line together with vinyl tape as shown in the figure showing the installation of Indoor and Outdoor units. Then fix their position with holders.
To enchance the heat insulation and to prevent water condensation, please cover the outdoor part of the drain hose and pipe with insulation pipe.
Completely seal any gap with putty.
Insulation material for pipe connection
100 mm ABOVE
11
BUSH
12
9
DRAIN PIPE
BUSH
Indoor
Unit
Outdoor
Unit
GRN + YEL
10mm
10mm
70mm
10mm
35mm
25mm
!
The naked part of the wire core should be 10 mm and fix
CONNECTION OF POWER CORD
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 3x1.5mm
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 an AC voltage drop between the L and N terminals if power is on. Therefore, before servicing, be sure to remove the plug from the AC outlet or switch off the main switch.
Do not make any connection in the middle of the connecting cable. It may cause the wire overheating, emit smoke and fire.
2
Installation Of Remote Controller
The remote controller can be placed in its holder which is fixed on wall or beam. To operate the remote controller at its holder, please ensure that the unit can receive signal transmitted from the controller at the place where the holder is to be fixed. The unit will beep when signal is received from the remote controller. The signal transmission is weaken by the fluorescent light. Therefore, during the installation of the remote control holder, please switch on the light, even during day time, to determine the mounting location of the holder.
2
.
GRN + YEL
Strip wires
WARNING
25mm
10mm
How to Remove The Front Cover
1 Remove the front panel.
Please remove and attach the front panel by both hands.
After opening the front panel by both hands.
1 Undo the right arm while pushing it inside.
The controller must
Sleeve of protection pipe
Putty
Putty
3
Power Source And Operation Test
Power Source
!
FINAL STAGE OF INSTALLATION
Please use a new socket. Accident may occur due to the use of old socket because of poor contact.
Please plug in and then remove the plug for 2 – 3 times. This is to ensure that the plug is completely plugged into the socket.
Keep additional length for the power cord and do not render the plug under external force as this may cause poor contact.
Do not fix the power cord with U-shape nail.
CAUTION
be hooked onto the hook at the lower part of the holder. Push in the remote controller in the direction as shown in figure below.
Remote
Controller
Screw (2 pieces)
Operation Test
Please ensure that the air conditioner is in normal operating condition during the operation test.
Explain to your customer the proper operation procedures as described in the user’s manual.
Holder for Remote Controller
2 Slide the front panel to right as shown in figure. Then
remove while pulling it to front.
2 Remove the filters.
3 Open the electrical cover. Disconnect the wire connector.
4 After removing two screws, pull the center of the front
cover towards you and release the claws.
5 Pull the side faces (lower sections) of the front cover
towards you as shown in the figure and remove the cover.
4 Connect the wire connector. Close the electrical cover.
OFF
O Z
5 Install the filter.
6 Slide the shafts of the right and left arms on the washable
panel along the steps to insert the shafts into the holes till they stop. After checking that the shafts are securely inserted, close the panel.
<
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(EN2) INS RAS/RAC-8/10/14CH9 17/3/09, 9:251
>
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