Hitachi RAK-15QPC Installationsanleitung

<0016693T>
FOR SERVICE PERSONNEL ONLY
1 EN
INDOOR UNIT
RAK-15QPC
MODEL RAK-18RPC
RAK-25RPC
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.
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 operation and maintenance of
the unit as described in the user' s guide. Ask a customer to keep this installation manual together with the instruction manual.
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 installation 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 cables which are approved official in your country. Be sure to use the specified circuit. A short circuit and
fire may occur due to the use of low quality wire or improper work.
Be sure to use the specified cables 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 to prevent the external force is being applied to the connection section of the
terminal base. 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, fire or
stronger vibration may occur.
Be sure to use the specified piping set for R410A. Otherwise, this may result in broken copper pipes or faults.
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 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. Do not connect the earth line to the gas tube, water pipe, lighting rod or the earth line of the
telephone unit. Improper earthing may cause electric shocks.
When finishing the refrigerant collection (pumping down), stop the compressor and then remove the coolant pipe.
If you remove the refrigerant pipe while the compressor is operating and the service valve is released, air is sucked and a
pressure in the freezing cycle system will build up steeply, causing an explosion or injury.
When installing the unit, be sure to install the refrigerant pipe before starting the compressor.
If the refrigerant pipe is not installed and the compressor is operated with the service valve released, air is sucked and the
pressure level of the refrigeration cycle may increase abnormally which could result in a rupture and injury.
The electric cables should neither be reworked nor added.
Make sure to use an exclusive circuit breaker.
Otherwise fire or electric shock might occur by connection failure, isolation failure or over current.
Make sure to connect cables to terminal properly and terminal cover should close firmly.
Otherwise, over heating at terminal contact, fire or electric shock might occur.
Make sure that there is no dust on any connected points of electric cables and fix firmly.
Otherwise, fire or electric shock might occur.
1 Installation of Hanger , Wall Penetration and Installation of Protection Pipe
Installation Of Remote Controller
CAUTION
The remote controller can be placed in its holder which is fixed on
The draining of the water container inside the Indoor unit can be done from the left.
wall or beam.
Therefore the hanger must be fixed horizontally or slightly tilted towards the side of
To operate the remote controller at its holder, please ensure that the
drain hose. Otherwise, condensed water may overflow the water container.
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
Direct Mounting On The Wall
the remote controller . The signal transmission is weaken by the fluorescent
Please use hidden beams in the wall to hold the hanger.
light. Therefore, during the installation of the remote control holder, please
556 mm
Visible outline of the
450 mm
switch on the light, even during day time, to determine the mounting location
indoor unit
225 mm 18 mm
of the holder.
95 mm 95mm
37.5mm
mm mm
115 mm
310 mm
60 mm 70 mm 80mm 80mm
590 mm Drain Hose
780 mm
2
Level Screw for Hanger
Wall Penetration and Installation of Protection Pipe
1 Hanger
Screw the hanger at the
positions possibly near the
Drill a ø65mm hole on wall which is
upper and lower hooks where
slightly tilted towards the outdoor side.
the indoor unit is hung. Use 4 or
Drill the wall at a small angle.
Line more screws to fix the hanger.
Cut the protection pipe according to the
Wall hole
Weight
wall thickness.
Procedures of Installation and Precautions
Empty gap in the sleeve of protection
Procedures to fix the hanger.
pipe should be completely sealed with
1. Drill holes on wall. 2. Push plug into the holes. 3. Fix the hanger on wall
putty to avoid dripping of rain water into
(As shown below) (As shown below) with 4.1 x 32 screw.
the room.
(As shown in figure below)
Wall Please ensure smooth flow of water
1 Hanger Plug
Ceiling when installing the drain hose. Improper
2 Screw (Procure
installing may wet your funiture.
locally)
An IEC approved power cord should be
Wall
32mm used. Power cord type: NYM.
Procedures to fix the holder of remote control.
1. Drill holes on wall.(As shown below) 2. Push plug into the holes. (As shown below)
Be sure that the wire is not in contact with any metal in the wall.
Wall
Please use the protection pipe as wire passing through the
7 Remote
hollow part of the wall so as to prevent the possibility of
Control
damaged by mouse. Unless it seals completely, any air with high
8 Screw
Holder
Plug (Procure locally)
humidity flows from outdoor and any dew may drop.
20mm
CAUTION
A circuit breaker must be installed in the house distribution box for the direct
connected power supply cables 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.
Please ensure smooth flow of water when installing the drain hose. Improper
installing may wet your fu niture. r
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.)
WARNING
The unit should be mounted at stable, non-vibratory location which can provide
full support to the unit.
CAUTION
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
controller at least 1m from the radio and television.
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 should be at least 2300 mm or more from the floor.
Figure showing the Installation of Indoor Unit.
Be sure to Names of Indoor Components
above 50mm
completely 2
above 1
No.
seal any 50mm
Hanger
gap with
putty.
1
above 50mm
Screw for Hanger
2300 mm or more
2
The indoor piping
should be insulated
with the enclosed
AAA size Battery
insulation pipe. (If the
insulator is insufficient,
9 3
please use commercial
products.)
Remote Controller
4
4
Plug
Air purifying filter
7
8
5
Direction of Piping
3 Backward piping
C-case
from left 6
Remote Controller Holder
7
Connection
There are 6 directions
Screw for Remote
allowed,namely,backward
Controller Holder
8
piping, backward piping
from left,horizontally piping
from right,horizontally piping Insulation sheet
from left,vertically down from 9
right,vertically down from left.
2 Installation Of The Indoor Unit
Cutting Low Cover bush
While installing the pipe from the right, left or bottom
side, use a knife to cut openings as shown in figure.
Then smoothen the edges of openings with a file.
The remote controller
Openings
must be slide in
Remote
PIPING FROM THE RIGHT SIDE
Controller the remote controller 1
holder, in the direction
(BACKWARD, DOWNWARD, HORIZONTAL)
as shown in the figure,
until it hooks at the
Remote
Preparation
Controller lower end of the remote
Holder Connect connecting cord.
controller holder.
Screw (2 pieces) Pull out the pipe, connecting
cord and drain hose.
Indoor Outdoor
2-5mm
Connecting cords, pipe and
Seal with
Seal with
drain hose must be laid
putty putty
together with Vinyl tape.
Installation
Insert the pipe through the wall hole.
1 The upper part of the Indoor unit
is hanged on the hanger.
Protection
WALL The projection at the lower part
2
pipe
Sleeve of
of the Indoor unit is hooked onto
protection
the hanger.
pipe
1
Hanger
WARNING
Lift the body
Refrigerating
of the unit
Pipe
upwards and
then force it
downwards.
Protection
Drain Hose Connecting Cord
Pipe
PIPING FROM THE LEFT SIDE (BACKWARD, DOWNWARD, HORIZONTAL)
2
Preparation
Changed of Drain Hose and Installation Procedures.
Exchange the location of drain hose and drain cap while installing the pipe from the left side as
shown in 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).
Drain hole
Hexagonal wrench •
Push the pipe deeply until the insulating
Drain cap
Drain Hose
key (Φ4mm)
section of the drain hose end gets over
the rib at the indoor unit side.
•
Remove low cover
•
Insert drain cap up to the location securely till the cap stops.
• Please use hexagonal wrench key( Φ 4mm) to insert the drain cap.
Hexagonal wrench
(This is an easier way to install the drain cap.)
Drain hole
key (Φ4mm)
CAUTION
The rubber strap used for fixing the insulator should not
b ied with great force. Otherwise,this will damage heat t e
insulation and causes water condensation.
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.
Transform the piping while holding down the lower portion
of pipe-support by hand.
INSTALLATION AFTER CONNECTION OF REFRIGERATING PIPES
The refrigerating pipe should be adjusted to fit into
Item Qty
the hole on the wall and then ready for further
connection.
The terminals of 2 connected pipes must be covered
1
with insulator used for terminal connection. Then the
pipes are wrapped with insulation pipe.
Connect the connecting cord after removing low
cover.
5 (Refer to "CONNECTION OF POWER CORD")
After adjustment, fit the connecting cord and pipes
into the space available under the unit. Use holder to
hold them tight.
Insulation pipe (must be wrapped with
2
Holder can be attached at the either of 2 places.
vinyl tape at every 120 mm)
Please select the easier position.
THE CONNECTION OF REFRIGERATING PIPE DURING
THE INSTALLATION OF INDOOR UNIT
1
The end of the refrigerating pipes are at
Preparation To Install Refrigerating Pipes
locations marked with " " symbol.
The refrigerating pipes and connecting cord
transform and are attached.
2
Please bend at a small
Installation
2
radius to form an arc
Hang the indoor unit onto the hanger. Use the temporary stand
at the back of the Indoor unit to push its lower part 15cm
1 forwards.
Place the drain hose through the hole on the wall.
Wrap the refrigerating pipes with insulation pipe after
connecting refrigerating pipe.
2
Connect the connecting cord after removing low cover.
(Refer to "Connection of Power Cord")
After adjustment, the connecting cord and refrigerating pipes
1
are placed into the space available under the Indoor unit.
The projection of Indoor unit must hook to the hanger.
Wall hole
Refrigerating
Drain hose
Pipe
pipe
Drain Pull this to the front during
Cable
hose Heat
the connection of refrigerating
Drain layout of
insulation pipe
Connecting pipe to ease task.
backward piping
cord
from left
3 Heat Insulation and Finish of the Piping
The connected terminals should be completed sealed
Insulation material for pipe
with heat insulator and then tied up with rubber strap.
connection
Do not tie the terminals with the tape too tight.
If any clearance or over-tightening may cause
Openings
condensation.
Please tie the pipe and power line together with vinyl
tape as shown in the figure showing the installation of
Indoor and Outdoor units.
To enhance 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.
4 Installation of Drain Hose
Ditch
Be sure that the drain hose is
Condensed water
not loosely connected bend or
pond
proper condition like left figure.
Bending upwards Condensed water
Wall hole pond
Pipe You are free to choose the side (left or right) for the installation of drain
hose. Please ensure the smooth flow of condensed water of the Indoor
Cable Drain hose
CAUTION
unit during installation. (Careless may result in water leakage.)
Drain layout of
backward piping
1 Hanger
HOW TO REMOVE INDOOR UNIT
1
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
2
figure)
Projection
INSTALLATION OF REFRIGERATING PIPES AND AIR REMOVAL
1 Preparation of Pipe
Use a pipe cutter to cut the copper pipe and remove burr.
CAUTION
Trimming tool
Insufficient insert may
result in water leakage.
Copper pipe
CAUTION
Remove burr and 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
Die
A
Please use
exclusive tool for
refrigerant R410A.
Copper pipe
Outer A (mm) Rigid Flaring Tool
Pipe
Rubber strap tied
Diameter (Ø) For R410A tool For R22 tool
with great force
6.35 (1/4") 0 - 0.5 1.0
9.52 (3/8") 0 - 0.5 1.0
Pipe
2 Pipe Connection
support
Transform after
bending downward.
CAUTION
In case of removing flare nut of a indoor unit, first remove
a nut of small diameter side, or a seal cap of big diameter
Drain hose side will fly out. Free from water into the piping when
working.
Be sure to tighten the flare nut to the specified torque with
a torque wrench.
If the flare nut is overtightened, the nut may be split after a
Pipe Connecting
long period has passed, and may cause a refrigerant leak.
cord
Holder
THIS APPLIANCE MUST BE EARTHED.
WARNING
Detail of Cutting the Connecting Cord
Indoor Unit
70mm
Green + Yellow
10mm (ground)
Strip 1
wires
2
3
10mm
Connecting cord
45mm
WARNING
below
5mm
Leave some space in the connecting cord for
maintenance purpose and be sure to secure
it with the cord band.
Projection
Secure the connecting cord along the coated part of the wire using
the cord band. Do not exert pressure on the wire as this may cause
Hook
overheating or fire.
Wiring of The Indoor Unit
For wire connection of the Indoor unit, you need to remove the front
cover, the low cover under the body of the unit and terminal cover.
Remove the cover from the terminal base and screw the cable.
about 15cm
3
2
Protection
pipe
Connecting
1
cord
Earth
Connected
Connecting cord
section
Cord band
After remove the screw
and terminal cover, and
put the connecting cords
and fix the terminal cover
with screw.
Sleeve of
protection pipe
Putty
How to remove the front cover
1 Remove the front panel
Please remove and attach the front panel by
Putty
both hands.
CAUTION
After opening the front panel by both hands.
Undo the right arm while pushing it inside.
1
2 Slide the front panel to right as shown in figure.
Then remove while pulling it to front.
2 Remove the filters.
3 After removing two screws, pull the center of
the front cover towards you and release the claws.
4 Pull the side faces (lower sections) of the front
cover towards you as shown in the figure and
remove the cover.
[PUSH] mark positions
Please be careful when bending the copper pipe.
Screw in manually while adjusting the center.
After that, use a torque wrench to tighten the
connection.
Flare nut
Wrench
Torque
wrench
Outer diameter Torque N·m
of pipe (ø) (kgf·cm)
Small diameter side 6.35 (1/4") 13.7-18.6 (140 - 190)
Large diameter side 9.52 (3/8") 34.3-44.1 (350 - 450)
6.35 (1/4") 19.6-24.5 (200 - 250)
Valve Small diameter side
head cap Large diameter side 9.52 (3/8") 19.6-24.5 (200 - 250)
Valve core cap
12.3-15.7 (125 - 160)
Gas leakage inspection
Please use gas leakage detector to check if
leakage occurs at connection of Flare nut
as shown in below. If gas leakage occurs,
further tighten the connection to stop leakage.
Method to remove the low cover
Pull at the 1 and 2 in
the directions as shown
by arrows to remove the
cover.
2
1
How to connect the optional parts
(WIFI Adapter,H-LINK RAC Adapter, Dry contact,
Wired Remote Controller)
For cable connection to control P.W.B., you need to
remove front cover and electrical box cover.
Each connecting location is as below.
Dry contact: CN6
1
2 WIFI Adapter or H-LINK RAC Adapter: CN7
3 Wired Remote Control ler : CN20
Please check and confirm manuals attached to each
optional parts for more connection details.
You can refer to this installation manual how to remove
and re-attach the front cover.
Please be careful not to damage lead wires by edge of
plate when connecting the optional parts.
CN20
CN7
CN6
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 claws
at upper side of the cover securely. Then, push the center of
the front cover to lock the claws.
3 Tighten the two screws.
Install the filter.
4
5 Slide the shafts of the right and left arms on the front 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.