Hitachi RAS-S50YHAB Installation Manual

INSTALLATION
Flare nut must use a torque wrench without fail. Tighten with the specifi ed tightening torque. If
●
MANUAL
the fl are nut is tightened too much, after a long period of time, the fl are nut breaks, Gas leakage,
stagnation, touching fi re, rarely cause ignition.
Sharp bending of the pipe use the polyethylene rod, bend not crushed the pipe. Gas leakage from
●
the crushed part, stagnation, touching fi re, rarely cause ignition.
● Please request your sales agent or qualifi ed technician to install your unit. Water leakage, short
circuit or fi re 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 fi re.
A brazed, welded, or mechanical connection shall be made before opening the valves to permit
SPLIT UNIT AIR CONDITIONER ●
refrigerant to fl ow between the refrigerating system parts. A vacuum valve shall be provided to
evacuate the interconnecting pipe and/or any uncharged refrigerating system part.
INDOOR UNIT
Mechanical connectors used indoors shall comply with ISO 14903. When mechanical connectors
●
RAS-S50YHAB
are reused indoors, sealing parts shall be renewed. When fl ared joints are reused indoors, the
RAS-S60YHAB
fl are part shall be re-fabricated.
Refrigerant tubing shall be protected or enclosed to avoid damage.
●
● 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.
OUTDOOR UNIT
Observe the rules and regulations of the electrical installation and the methods described in the
●
RAC-S50YHAB
installation manual when dealing with the electrical work. Use power cables approved by the
RAC-S60YHAB
authorities of your country.
Be sure to use the specifi ed 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 fi re.
EN INSTRUCTION MANUAL Please use the specifi ed components for installation work. Otherwise, the units may collapse or
●
water leakage, electric shock and fi re may occur.
Be sure to use the specifi ed piping set for R32. Otherwise, this may result in broken copper pipes
●
or faults.
● When installing or removing an air conditioner, only specifi ed refrigerant (R32) shall be allowed, do
FOR SERVICE
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.
PERSONNEL ONLY
Be sure to ventilate fully if a refrigerant gas leak while at work. If the refrigerant gas comes into
●
contact with fi re, a poisonous gas may occur. Be aware that refrigerants may not contain an odour.
● 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 fi re in the fan-driven heater,
● Carefully read through the procedures of
space heater, etc., a poisonous gas may occur.
proper installation before starting installation
● Unauthorized modifi cations to the air conditioner may be dangerous. If a breakdown occurs please
work.
call a qualifi ed air conditioner technician or electrician. Improper repairs may result in water leakage,
● The sales agent should inform customers
electric shock and fi re, etc.
regarding the correct operation of installation.
Tools Needed For Installation Work
( mark is tool exclusive use for R32) ● A circuit breaker or fuse must be installed. Without a circuit breaker or fuse the danger of electric
shock exists.
● + – Screwdriver ● Measuring Tape
The external switch shall be incorporated to completely disconnect from power supply. It should
Knife Saw Pipe Cutter
● ● ●
disconnect all poles, and a contact separation of at least 3mm must be present.
Hexagonal Wrench Key ( 4mm)
●
Do not install the unit near a location where there is fl ammable gas. The outdoor unit may catch
●
Power Drill (ø 65mm ~ ø 80mm)
●
fi re if fl ammable gas leaks around it.
Vacuum Pump ● Pliers or Wrench
● Do not install the indoor unit in a machine shop or kitchen where vapor from oil or its mist fl ows
● Torque Wrench Vacuum Pump Adaptor
to the indoor unit. The oil will deposit on the heat exchanger, thereby reducing the indoor unit
● Flare Tool ● Gas Leakage Detector performance and may deform and in the worst case, break the plastic parts of the indoor unit.
Manifold Valve Charge Hose Please ensure smooth fl ow of water when installing the drain hose.
●
Piping shall be suitable supported with a maximum spacing of 1m between the supports.
● Reamer ● File ●
Refrigerant pipe size (outer diameter): Narrow pipe, Liquid (ø6.35mm); Wide pipe, Gas (ø12.70mm)
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.
< IA1837: C >
1 Installation of Mounting Plate, Wall Penetration and Installation of Protection Pipe
CAUTION
!
The draining of the water container inside the indoor unit can be done from the left.
●
Therefore the mounting plate must be fi xed horizontally or slightly tilted towards the
side of drain hose. Otherwise, condensed water may overfl ow the water container.
Direct Mounting On The Wall
Please use hidden beams in the wall to hold the mounting plate.
●
Mark
Screw for Mounting Plate
Please use more than
4 screws.
Procedures of Installation and Precautions
Procedures to fi x the mounting plate.
●
1. Drill holes on wall. 2. Push plug into the holes.
(As shown below) (As shown below)
Wall
1
Mounting plate
Plug
2
Screw
32mm
Wall
Procedures to fi x the holder of remote control.
●
1. Drill holes on wall. 2. Push plug into the holes.
(As shown below) (As shown below)
Wall
3
Remote
Control
Holder
5
Screw
20mm
Plug
Wall Penetration and Installation of Protection Pipe
Drill a ø 65mm hole on
●
Indoor Outdoor
wall which is slightly tilted
towards the outdoor side.
Seal with
Drill the wall at a small
putty Seal with
angle.
putty
Cut the protection pipe
●
according to the wall
thickness.
Empty gap in the sleeve
●
of protection pipe should
WALL
be completely sealed with Protection
pipe
putty to avoid dripping of
Sleeve of
rain water into the room.
protection pipe
< >
IA1837: C
WARNING
!
CAUTION
!
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 mounting plate.
●
The projection at the lower part of the Indoor unit is hooked onto the mounting plate.
●
Mounting plate
Refrigerating
Pipe
Protection
Pipe
Connecting
Drain Hose
Cord
Level
HOW TO REMOVE INDOOR UNIT
Mounting
Push up the (PUSH) sections at the bottom of the indoor
●
plate
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 fi gure)
Line Hole for pipe
HORIZONTAL PIPING
Weight
Preparation
Change of Drain Hose and Installation Procedures.
Exchange the location of drain hose and drain cap during horizontal piping as shown in
●
3. Fix the mounting plate on
fi gure below. Be sure to plug in the drain hose until the insulating material folds upon itself.
wall with 4.1 x 32 screw
(As shown in fi gure below)
Please use pliers to pull
●
Ceiling
out the drain cap.
(This is an easier way to
above 50mm
remove the drain cap).
4.1 x 32 Screw
Drain cap
Drain cap
Remove the cap for
●
drain hose installation
WARNING
!
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.
CAUTION
The Choice of Mounting Site
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 specifi ed in fi gure
●
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, television and inverter type fl uorescent
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
Direction of Piping
No. Component's Name Qty
Mounting Plate
1
1
There are 6 directions
Screw for Mounting
allowed, namely,
Plate
6
horizontally perpendicular
2
to the unit, vertically
(4.1 x 32)
down from right,
Holder for Remote
horizontally out from right
Controller
and horizontally out to
1
left.
3
Don't form the piping
downward at the left of
the unit.
AAA Size Battery
2
4 Dimension of Mounting Stand
of the outdoor unit
Screw for holder of
(unit : mm)
Remote Controller
2
5
(3.1x16)
Remote Controller
6 1
Purifying Filter
!
2
7
Flare connection only at
outside of building
Names of Outdoor Components
No. Item Qty
Bush
8 3
Drain Pipe
1
9
Bush
1
10
● Do not use means to accelerate the defrosting process or to clean, other than those recommended by the manufacturer.
Any unfi t method or using incompatible material may cause product damage, burst and serious injury.
● The appliance/pipe-work shall be stored in a well ventilated room with indoor fl oor area larger than A
and without any continuously operating ignition source. Keep away from open fl ames, any operating gas appliances or
any operating electric heater. Else, it may explode and cause injury or death.
The appliance/pipe-work shall be installed, and/or operated in a room with fl oor area larger than A
●
keep away from ignition sources, such as heat/spark/open fl ame or hazardous areas such as gas appliances, gas cooking,
reticulated gas supply systems or electric cooking appliances, etc.
● Do not pierce or burn as the appliance/pipe-work is pressurized. Do not expose the appliance/pipe-work to heat, fl ame,
sparks, or other sources of ignition. Else, it may explode and cause injury or death.
Connecting cords, pipe and
drain hose must be laid
together with Vinyl tape.
Mounting plate
CAUTION
!
Lift the body
of the unit
Please pull the lower part of
upwards and
the Indoor unit outwards to
then force it
check if the unit is hooked onto
downwards.
the mounting plate. Improper
installation may cause vibration
and noise.
Projection
[Push] mark positions
CAUTION
For horizontally out to right piping
GOOD
For right piping, follow the instruction as below:
● Press the upper side of clamp
● Unfold the pipe to downward slowly.
Drain hose
Drain hose
Bend the pipe to the right side of chassis.
●
Drain cap shall
be fully tightened
BAD
by pushing with
Hexagonal wrench
Following bending from left to right directly
key when changing could cause damage to pipe.
location.
Drain hose
Please insert
until here
Condensed water
may leak out if not
inserted properly.
(Please note the following matters and obtain permission from customer before installation).
This symbol shows that this equipment uses a fl ammable refrigerant.
If the refrigerant is leaked, together with an external ignition source,
there is a possibility of ignition.
This symbol shows that the Operation Instructions should be read
carefully.
This symbol shows that a service personnel should be handling
this equipment with reference to the Installation Manual.
This symbol shows that there is information included in the Operation
Manual and/or Installation Manual.
Figure showing the Installation of Indoor and Outdoor Unit.
CAUTION
!
This unit is chargeless up 30m pipe length.
●
● Installation of pipe length less than minimum pipe length requirement
(3 meters) may generate an abnormal sound.
Table 1: Minimum Floor area of the room A
Max Piping Max refrigerant
Outdoor
Length charge amount
Model
(m) (g)
RAC-S50YHAB 30 1500
RAC-S60YHAB 30 1500
Be sure to
completely
seal any
gap with
putty.
WARNING
WARNING
!
[refer to Table 1]
min
[refer to Table 1] and
min
INSTALLATION OF REFRIGERATING PIPES AFTER CONNECTION
The refrigerating pipes should be adjusted to fi t 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, fi t the connecting cord and pipes into the space
●
available under the indoor unit.
When connection is at left side, refrigerating pipe and cabinet shall be
●
tied together.
Failing to do so may cause the unit bottom side become warping.
Excess binder shall be cut to prevent abnormal sound and water dripping.
Hook portion for binder tightening
Binder
Refrigerating
Pipe
Binder
Hook Insulator
Hook
Drain Hose
Insulation pipe (must be wrapped
with vinyl tape at every 120mm).
THE CONNECTION OF REFRIGERATING PIPE DURING THE
INSTALLATION OF INDOOR UNIT
Preparation To Install Refrigerating Pipes
Refer to below diagram for the connecting refrigerating
●
pipes and cord arrangement.
The end of the refrigerating pipes are at locations
●
marked with " " symbol.
Please bend at a small
radius to form an arc
Installation
Hang the Indoor unit onto the mounting plate. 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 mounting plate.
●
Heat insulation pipe
Protection pipe
Pull this to the front
Drain hose
during the connection
Connecting
of refrigerating pipes
cord
to ease task.
Connecting cord
Refrigerating pipe
3
Installation of Drain Hose
Do not guide the drain hose to places where corrosive gases (sulfur, ammonia,
●
etc.) are generated, such as septic tanks and sewer.
!
Corrosive gas may fl ow backward from the drain hose to the indoor unit, corrode
the copper pipe, or it may cause offensive odors in the room.
CAUTION
Cut the drain hose at a position 100 mm higher than the fl oor surface. It may
●
cause water leakage due to air lock or clogging of foreign matter.
Condensed
Ditch
Condensed water pond
Bending
water pond Above
100mm
upwards
You are free to choose the side (left or right) for the installation of drain hose.
!
Please ensure the smooth fl ow of condensed water of the Indoor unit during
CAUTION
installation. (Carelessness may result in water leakage.)
WARNING
CAUTION
CAUTION
CAUTION
2
(m )
min
Minimum Floor area of the room
A (m 2 )
min
RAS-S**YHAB
2.15
2.15
The indoor piping should be
insulated with the enclosed
insulation pipe. (If the
insulator is insufficient,
please use commercial
products).
● The difference in height
between the indoor and
outdoor unit should be
kept max 20m.
● The connecting pipe,
no matter big or small,
should all be insulated
with insulation pipe and
then wrapped with plastic
tape. (The insulator will
deteriorate if it is not
wrapped with tape).
The connection of insulated
drain hose.
Please use insulated drain
hose for the indoor piping
(commercial product).
WARNING
!
BURST HAZARD
Do not allow air, etc. to get into refrigerant
cycle (piping)
RISK OF EXPLOSION
Compressor must be stopped before
removing refrigerant pipes.
All service valve must be fully closed after
pumping down operation.
Drain hose
Connecting cord
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.
Pipe
Rubber strap tied with
great force
CAUTION
!
Please fi x in the plastic core
●
after fl aring to avoid copper
chips entering the pipes.
below
5mm
Projection
Hook
about 15cm
Connected
Holder
section
CAUTION
!
Be sure that the drain
hose is not loosely
connected or bend.