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Hitachi Luftkonditionering RAS-S25YHAB

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FOR SERVICE PERSONNEL ONLY
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 R32. 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 (R32)
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.
•Af plete omr c tion lla iof nsta tion check ke s e e no f gework, to ma ur that ther is re ri ratio ga len s akag If e r ge s le s i thee. th efri rant ga ak nto
room, co c oming into nt t th f e in n-dac wi ir the fa riven heater, sp heace ater, e a p onous gas y r.tc., ois ma occu
•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.
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 funiture.
•An IEC approved power cord should be used. Power cord type: NYM.
TINU ROODNI
WARNING
THE CHOICE OF MOUNTING SITE (Plea no tse te he following m rs obtatte and ain pe iorm ssi n from customer before i tans ll tioa n.)
•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 ar e
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 an d
t v n.ele isio
•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.
TINU ROODTUO
WARNING
•The Outdoor unit must be mounted at a location which can
support heavy weight. Otherwise, noise and vibration will
increase.
CAUTION
•
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 three 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.
•The location must be convenient for water drainage.
•Place the Outdoor unit and its connecting cord at least 1 m
away from the antenna or signal line of television, radio or
telephone. This is to avoid noise interference.
Names of Indoor Components
Direction of Piping
Backward piping
from left
Connection
Th e 6 c s ed,ere ar dire tion allow
namel backward pipingy, ,
backward piping from left ,
horizontally piping from right ,
horizontally piping from left ,
vertically down from right, vertically
d n ow fro eftm l .
The indoor piping should be
insulated with the enclose d
i a p . f e s tor isnsul tion ipe (I th in ula
insufficient, please use commercial
products.)
•T igerati mac ne ishe refr ng hi oil
ea y affe by m e. Usesil cted oi urst
caution to prevent water fro m
ent i t y e.er ng he c cl
•The di ferencef in height between
the indoor and outdoor uni t
sho d be k t be m.ul ep low 10
•T connec g pe, no tterhe tin pi ma
big or small, should all be
insulated with insulation pipe and
then wrapped with vinyl tape .
(The i at de riorate ifnsul or will te
it n wra ed th tape).is ot pp wi
T connec n of ted dr nhe tio in lasu ai
hose.
Inner diameter 16mm
Please use insulated drain hose for
the indoor piping (commercia l
product)
TINU ROODNI
1 Installation of Hanger, 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 hanger must be fixed horizontally or slightly tilted towards the side of
drain hose. Otherwise, condensed water may overflow the water container.
•Drill ø65mm hole on wall which a 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 with
putty to avoid dripping of rain water into
the room.
•Please ensure smooth flow of wate r
when installing the drain hose. Improper
installing may wet your funiture.
•An IEC approved power cord should be
used. Power cord type: NYM.
WARNING
Be sure that the wire is not
in contact with any metal in
the wall. Please use th e
protection pipe as wir e
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
fl wso from outdoor and any
dew may drop.
Seal with
putty
Protection
pipe Sleeve of
protection
pipe
Seal with
putty
OutdoorIndoor
2-5mm
2 Installation Of The Indoor Unit
WALL
1
PIPING FROM THE RIGHT SIDE (BACKWARD, DOWNWARD, HORIZONTAL)
P rationrepa
•Connect connecting cord.
•Pull out the pipe, connecting cord and drain hose.
Installation
•Insert the pipe through the wall hole.
1The upper p t of the d is h ed on ear In oor unit ang th
hanger.
2The projection at the lower part of the Indoor unit is
hooked onto the hanger.
2
PIPING FROM THE LEFT SIDE (BACKWARD, DOWNWARD, HORIZONTAL)
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.
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.
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.
•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.
Pipe Rubber strap tied
with great force
INSTALLATION AFTER CONNECTION OF REFRIGERATING PIPES
•The refrigerating pipe should be adjusted to fit into
the hole on the wall and then ready for furthe r
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 lo w
co r.ve
(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.
•Holder can be attached at the either of places 2 .
Please select the easier position.
THE CONNECTION OF REFRIGERATING PIPE DURING
THE INSTALLATION OF INDOOR UNIT
P para n To I a f pesre tio nst ll Re rige tingra Pi
•The refrigerating pipes and connecting cor d
transform and are attached.
Please bend at a small
radius to form an arc
Installation
Hang the indoor unit onto the hanger. Use the temporary stand
at ck oo pu it we pa 15 the ba of the Ind r unit to sh s lo r rt cm
forwards.
•Place the drain hose through the hole on the wall.
•W rrap the refrigerating pipes with insulation pipe afte
connecting refrigerating pipe.
•Connect the connecting cord after removing low 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.
Wall hole
Pipe
Drain hose
Cable
4 Installation of Drain Hose
CAUTION
Be sure that the drain hose is
not loosely connected bend or
proper condition like left figure.
CAUTION
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
unit during installation. (Careless may result in water leakage.)
•The connected terminals should be completed sealed
with heat insulator and then tied up with rubber strap.
•Do not tie the terminals with the tape too tight.
If any clearance or over-tightening may caus e
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 th e
drain hose and pipe with insulation pipe.
•Completely seal any gap with putty.
Insulation material for pipe
connection
Sleeve of
protection pipe
Putty
Putty
Drain layout of backward piping from left
The component of
the package of the outdoor unit.
3 Heat Insulation and Finish of the Piping
Pipe
su ortpp
Tran o a ersf rm ft
bending downward.
is included
in
Indoor Unit / Outdoor Unit
67
pond
Bending upwards Condensed water
Ditch
No. Item Qty
Screw for Hanger
AAA size Battery
Remote Controller
Insulation sheet
Drain Pipe
1
2
3
4
5
6
7
8
9
10
11
Bush
2
2
2
C-case
Air Cleaning Mesh
Wasabi-Nano Titanium
Screw for Remote
Controller Holder
Remote Controller Holder
Wall Penetration and Installation of Protection Pipe
pond
Condensed water
1
RAS-S25YHA_S35YHA/RAC-S25YHA_S35YHA
RAS-S25YHAB / RAC-S25YHAB
RAS-S25YHAB / RAC-S25YHAB
RAS-S25YHAB / RAC-S25YHAB
RAS-S25YHAB / RAC-S25YHABRAS-S25YHAB / RAC-S25YHAB
RAS-S35YHAB / RAC-S35YHAB
RAS-S35YHAB / RAC-S35YHAB
RAS-S35YHAB / RAC-S35YHAB
RAS-S35YHAB / RAC-S35YHABRAS-S35YHAB / RAC-S35YHAB
(unit : mm)
Dimension of Mounting
Stand of the Out unitdoor
Figure showing the Installation
of Indoor and Outdoor Unit.
12
above
50mm
above 50mm
above 50mm
about 300mm
about 0.45m
must not bend
Used in
horizontal piping
above 100mm
above 300mm
above 50mm
gi ranceve clea
as e aswid
pos ibs le
above
200mm
Be s e tour
c telyomple
seal any gap
wi puth tty.
Maximum pipe length 20m
above 50 whenmm
ins allet d on the
c g of balconyeilin
above 200mm
2,300 mm or more
When the power is
supplied from the
indoor unit, pull the
power cable from the
cable drawer at the
right or left side of
the indoor unit.
Cable drawer (right side)
Minimum pipe length 3m
Selecting the installation location: Suitable location that
will reduce the impact from rain and direct sun that may
affect the unit performance.
•The in a stall tion height sho ldu be at least 2, 003 mm or more
from the floor.
R32
R32)
s
Never install a drier to this R32 unit in order to guarantee its lifetime.
Hanger
12
Binding band
2
Direct Mounting On The Wall
sPlease use hidden beams in the wall to hold the hanger.
450mm
445mm
440mm
534mm
780mm
220mm
123mm 123mm
32.5mm
115mm
280mm
42.5mm
45mm
59mm184mm
42.5mm
22mm
85mm60mm 80mm65mm
15mm
Screw the hanger at the
positions possibly near the
upper and lower hooks where
the indoor unit is hung. Use 4 or
more screws to fix the hanger.
Procedures of Installation and Precautions
•Procedures to fix the hanger.
1. Drill holes on wall.
(As shown below)
2. Push plug into the holes.
(As shown below)
3. Fix the hanger on wall with
4.1 x 32 screw.
(As shown in figure below)
•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)
Remote
Control
Holder
32mm
Wall
ø mm8.4
1 Hanger
2 Screw
Wall
Plug (Procure locally)
Screw
20mm
ø mm4.4
Wall
Plug
(Procure
locally)
10
10
11
Ceiling
Openings Openings
Connecting cords, pipe and
drain hose must be laid
together with Vinyl tape.
Wall hole
Pipe
Drain hose
Cable
Drain layout of
backward piping
11
2
Lift the body
of the unit
upwards and
then force it
downwards.
1
Hanger
Refrigerating
Pipe
Protection
Pipe Drain Hose Connecting Cord Projection
Hanger
sPlease use pliers to pull out the drain cap.
(This is an easier way to remove the drain
cap).
CAUTION
Insufficient insert may
result in water leakage.
Drain Hose
Drain cap
•
Remove low cover
•
Insert drain cap up to the
•
Please use hexagonal wrench key(Φ4mm) to insert the drain cap.
(This is an easier way to install the drain cap.)
location securely till the cap stops.
•
Push the pipe deeply until the insulating
section of the drain hose end gets over
the rib at the indoor unit side.
Drain hole
Hexagonal wrench
key ( 4mm)Φ
Drain hole
Hexagonal wrench
key ( 4mm)Φ
Pipe Connecting cord
Drain hose
Binding band
Insulation pipe (must be
wrapped with
at every 120 mm)
vinyl tape
Binding band can be
installed to whichever
side of the installation
points. However, it is
recommended to attach
it on the right side
viewing from the rear.
12
The end of the refrigerating pipes are at
locations marked with “ ” symbol.
below
5mm
1100 mm
about 15cm
Hook
Projection
Pull this to the front during
the connection of refrigerating
pipe to ease task.
Protection
pipe
Connecting cord Connected
section
Drain hose
5
2
Mounting Stand
792
500
340
32010
12
39 146
(10)
57
877
Plug
3
4
10
11
φ65
Heat
insulation pipe
Refrigerating
pipe
Connecting
cord
SAFETY
PRECAUTION
•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.
This appliance is filled with R32.
Please mount the Outdoor unit of stable ground to prevent vibration and increase
of noise level.
Decide the location for piping after sorting out the different types of pipe available.
When r viemo ng side cov , p ase er le pull the h andle after undoing the ho by ok pulling
it downward. Reinstall the side cover in the reverse order of the removal.
CONDENSED WATER DISPOSAL OF OUTDOOR UNIT
There is 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.
Cover the drain hole with a bush. To install the bush, put it on the drain hole as
shown in the figure and press the both sides of the bush to fit into the hole.
After installation, check whether the drain pipe and bush cling to the base firmly.
Install the outdoor unit horizontally and make sure that condensate drains away.
In case of using in chilly area
Espec y,iall in case that th ree are many sn by ows very co in ch y ld ill area, conde edns
wa ert f es reez on the b ase and m ay res ltu not to d . In t ca rain his se, pl asee re ovm e
the bush and the drain pipe at the bottom of unit. (Left and center near discharge
portion of air, each 1 place). It becomes smooth drain.
Ensure that the distance from the drain hole to the ground is 250 mm or more.
OUTDOOR UNIT
CAUTION
Do not to e ctionuch th su
port tt sur ace,, bo om f or
aluminum fin of the outdoor
unit.
Failure to do so may cause
an injury.
INSTALLATION OF REFRIGERATING PIPES AND AIR REMO LVA
3 Remove of Air From The Pipe And Gas Leakage Inspection
AIR REMOVAL
Procedures of using Vacuum Pump for Air Removal
As wn in ri fi re the ca sho ght gure, mo ve p
of lv or en ch rg va e c e. Th , connect the a e
hos ve th cap lve eae. Remo e of va h d.
Co ect the va pu a ter to enn cuum mp dap th
va m mp a connect t chargecuu pu nd he
hose to e adapter.th
1
F y ull tighter the " sh le of t Hi" utt he manif dol
v l y un the "Lo"alve and comp etel screw
sh tl he vac um for abut e. un R t u pump out
10-15 mi ut s,n e then co ple elm t y ti htg en the
"Lo" ut le an swi ch ff the va uu sh t d t o c m
pump.
Loosen the spindle of the service valve
wi allth sm di eter by 4 t n dam 1/ ur an
tighten the spindle immediately after 5
to 6 seconds.
Re in hos frmov hae the c rg g e om the
service valve.
2
Comp e u w the e thelet ly nscre spindl of
se i v rv ce alve (at 2 p ) in laces anti wisclock e
dir ti ll friec on to a ow the flow of re gerant
(using Hexagonal Wrench key) .
3
Ti ten e c va d. C thegh th ap of lve hea heck
ca 'sp p hery erip if there is any gas le geaka .
T co d.he sk is henta t mplete
4
Gas leakage inspection
Please use gas leakage detector to check if leakag e
occurs at connection of Flare nut as shown on th e
right.
If gas leakage occurs, further tighten the connectio n
to stop leakage .
CONNECTION OF POWER CORD
WARNING
If you cannot attach the side plate due to the connection cord, please
press the connecting cord in the direction to the front panel to fix it.
Be sure that the hooks of the side cover fixed in certainly. Otherwise water
leakage may occur and this causes short circuit or faults.
The nnec ng c ould not to h to s ce e d pes. (itco ti ord sh uc ervi valv an pi
becomes high temperature in heating operation.)
Wiring of the Outdoor Unit
Please remove the side cover for wire connection.
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 gauge list below for the
wiring from house distribution fuse box to the outdoor unit in consideration of the blocked
rotor current.
I ORT TMP AN
Wire length Wire gauge
u o 6mp t 1. 2
up t 5mo 1 2.5mm2
up t 0mo 2 4.0mm2
Investiga ow supply pa ity ndte the p er ca c a other
electrical conditions at the installing location.
Depending on the model of room air conditioner to be
installed, request the customer to make arrangements
for the necessary electrical work etc.
T e ic wo c t ring work up ehe lectr al rk in ludes he wi th
outdoor unit. In localities where electrical conditions
are poor, use of a voltage regulation is recommended.
Install outdoor for the room air conditioner within the
reaching range of the line cord.
I TMPORTAN
Fuse Capacity
15A time delay fuse
WARNING
The naked part of the wire core should be 10mm 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 wire specified for the use of air-conditioner.
Please refer to the manual for wire connection and the wiring technique should
meet the standard of the electrical installation.
There is an AC voltage drop between the LN terminal if the power is on. Therefore,
be sure to remove the plug from its socket.
WARNING
Lea ome ac tin aive s sp e in the c non ec g cord for m nten cean
purpose and be sure to secure it with the cord band.
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 overheating or fire.
When power supplies to Indoor Unit
WARNING
THIS APPLIANCE MUST BE
EARTHED.
Procedures of Wiring
Detail of cutting the connecting cord
FINAL STAGE OF INSTALLATION
1 Power Source And Operation Test
Power Source
WARNING
Ne r r o the ve em del power p lug nor e end xt the long ista-d nce
cord.
Keep additional length for the power cord and do not render
the plug under extern force al as this may ca e us poor co t.ntac
Do not fix the power cord with U-shape nail.
The power cable easily generates heat. Do not bring the
cable together with a wire or vinyl tie.
Operation test
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
si nal eiv em ll r. igg is rec ed from the r ote co ront e The s nal
tr m sans is ion is we en by ak the fluorescent li htg . Th oeref re, d gurin
the installation of the remote control holder, please switch on
the light, even during day time, to de rmte ine t mo ting he un loc ioat n
of the holder.
Push Push
DRAIN HOLE
When t m er re h he et ac es -101KPa
(- c g) d p ping fu y76 mH uring um ll
tighten the shuttle.
Meter showing
pressure Closed
R32
Man foi ld
v veal
Vacuum
pump
Valve
Charge
h eos
Va umcu
pump
adapter
W p g s s lyhen pum in tarts, light
loo n the flare t to k ofse nu chec
air su ed in. Then ti ten theck gh
f re la nut.
The body of service
v veal
Cap of
valve core
H o lexag na
wrench Key
Cap of valve
head
Cap of valve
head
Valve
7 BUSH
5mm
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.
Copper pipe
Trimming tool
•Before flaring, please put on the flare nut.
A
Die
Die
Copper pipe
•Please use
exclusive tool for
refrigerant R32.
2 Pipe Connection
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
side will fly out . Free from ater into the piping whe w n
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
lo per h pas , a may c se a refr rant lng iod as sed nd au ige eak.
•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.
Torque
wrench
Flare nut
Wrench
Sm ll diamet sid 35 (1 3. 18 14a er e 6. /4") 1 7 – .6 ( 0 – 190)
Large r e 9 2 (3 ) 34 – 44 dia teme sid .5 /8" .3 .1 (350 – 450)
Small di me er sid a t e
6. / ) 1 – 35 (1 4" 9.6 24 20 25.5 ( 0 – 0)
La ge idr diameter s e
9. / ) 1 – 52 (3 8" 9.6 24 20 25.5 ( 0 – 0)
Valve co p 12 – 15 25 – 160)re ca .3 .7 (1
Tor N·que m
(kgf·cm)
Valve
he capad
1 Preparation of Pipe
•Use a pipe cutter to cut the copper pipe and remove burr.
O r m rute dia ete
of (ø)pipe
EE0019948 201 .0
Indoor Unit Outdoor Unit
L N
Connecting Cord
AC 2 0V
1 2 3 1 2 3
160mm
10mm
100mm
1
2
3
70mm
10mm
10mm
45mm
1
2
3
Connecting cord
Strip
wires
Green +
Yellow 20mm
Strip
wires
Connecting cord
Green + Yellow
(ground)
Indoor Unit Outdoor Unit
Connecting Cord
Please ensure that the air conditioner is in normal operating
condition during the operation test.
Explain to your customer about the proper operation procedures
as described in the operation manual.
If the indoor unit won’t operate, check the cable for correct
connection.
CAUTION
s
Do not operate the uni i it for more than 5 m nutes wh le
the sp ndle of the serv ce valve s closedi i i .
RAS-S25YHA_S35YHA/RAC-S25YHA_S35YHA 2
Pull at the 1 and 2 in the directions as shown by arrows to remove
the cover.
Method to remove the low cover
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.
WARNING
Outdoor supply cords shall not be lighter than polychloroprene
sheathed flexible cord 60245 IEC 57.
Outer
Diameter (Ø) For R22 tool
6.35 (1/4") 1.0
9.52 (3/8") 1.00 - 0.5
0 - 0.5
For R32 tool
A (mm) Rigid Flaring Tool
Connecting
cord
Cord band
After remove the screw
and terminal cover, and
put the connecting cords
and fix the terminal cover
with screw.
Earth
How to remove the front cover
How to Attach the Front Cover
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.
Tighten the 3
Assemble the cover of electric box.
screws.
Install the filter.
Remove the filters.
After removing 3 screws,
pull the
the
center of the front cover towards you and release
Pull the side faces (lower sections) of the front cover towards
you as shown in the figure and remove the cover.
1
2
Remove the front panel
Push the end of the right-side arm outward to release the
tab.
Move the left-side arm outward to release the left tab, and
then pull the panel towards you.
Insert the shaft of the left arm along the step on the unit into
the hole.
Securely insert the shaft of the right arm along the step on
the unit into the hole.
Make sure that the front panel is securely attached, and then
close the front panel.
Attaching the Front Panel
1
2
Push
Arm
S
Claw
Claw Claw Claw
crew
Screw
remove the cover of electric box,
claws.
cover
CAUTION
Remove and attach the front cover to the
direction as shown in the figure to ensure
no damage occurs to the ECO sensor.
X
O
ECO Sensor
s
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)
HOW TO REMOVE INDOOR UNIT
[PUSH] mark positions
Pull downward
Please face this side(suction
side) of theunit to the wall.
Please remove side
cover when connecting
the piping and connecting
cord.
above
100mm
Outer diameter :
16 mm or more
DRAIN PIPE
DRAIN HOLE
BASE
BUSH
7
6
cover
L N 1 2 3
Cord band
The remote controller
must be slide in
the remote controller
holder, in the direction
as shown in the figure,
until it hooks at the
lower end of the remote
controller holder.
Screw (2 pieces)
Remote
Controller
Holder
Remote
Controller
Force-cooling operation
Se ice itch (If the itch isrv sw sw
pressed for one or more secon ds t
he
force-coo ng operat on arts If theli i st .
swi tch is pres sed again , the
operation stop .)
Screw
Co rve
220- 4
C 9 5

Produktspecifikationer

Varumärke: Hitachi
Kategori: Luftkonditionering
Modell: RAS-S25YHAB

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