Hitachi RAC-25FXE Installationsanleitung

FOR SERVICE PERSONNEL
OEN
• Carefully read through the procedures ot proper
HITACHI
installation before starting installation work
• The sales agent should inform customers regarding
OUTDOOR UNIT
the correct operation of installation
INSTALLATION MANUAL
Tools Needed
(Mark@ is exclusive
OOScrewdriver
RAC-25FXE
• 065mmPowerDriI
HFC
MODEL
(m-4mm) •
RAC-35FXE
Detector • Pipecutter
RAC-50FXE
Flare Tool @Vacuum PumpAdapter@ManiIoId
@ Char e Hose
SAFETY PRECAUTION
i Readthe safetyprecautions carefulybeforeoperatingthe unit
• The contents Ofthis section are vital to ensure safety Please pay special attention to the fol owing sign
A WARNING
. Incorrect methods of installation may cause death or serious injury.
A CAUTION
Improper installation may result in serious consequence
Make sure to connect earth line.
S This sign in the figures indicates prohibition.
Be sure that the unit operates in proper condition after installation. Explain 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.
A WARNING
• Please request yoursales agent or quallfied technician to install your Water leakage, short circult or fire may occur Ityou do the
installation work ursel[
• Please observe the installationstated in the installation manual during the process of installation mproper instalation may cause
water leaka e electric shock and fire
• Make sure that the units are mounted at locations which are able to provide full support to theweightof theunits If not, theunitsmay
colla and im osa dan en
• Observe the rules and regulations 01the electrical installation and the methods described in the installation manual When dealing
withthe electrical work use cables which are approved official in your country. Be sure9Juse thespecified circuit A short circuit and
fire may occur due to the use Of low goalitv WireOr improper mrk_
• Besure to usethe specified cables for connecting the and outdoor units Pleaseensure that the connectlons aretight atterthe
conductors Ofthe wire are inserted into the terminals prevent the external force is being applied to the connection section Ofthe
terminal base. ro er insertion and loose contact ma cause over-heati and fire
lease uset e spe le components r wo raise, e unit may collapse or water lea
stron er vibration ma occur.
sure to use the ecified i n set r 410
32 erv,'lse, this m resultin ro en
• When installing or transferring an air conditioner to another location, make sure that air Otherthan the specified refrigerant (R32)
does not enter the refrigeration cycle It other air should enter,the pressure level ot the refrigeration cycle may increase abnormally
Whichcould result in a rupture and injun,'
•Never install a drier to this R32 unit in order to uarantee its lifetime
• Be suretouentilatetul ita retri erant leak while at work the retri erant scomesinto
er campletion installationwork, check to make sure that there is no refrigerationgas leakage. the
room comin into contact with firein thefan-driven heater s ce heater etc, a isonous as
• Unauthorized modificationsto the air conditioner may be dangerous. If a breakdmvn occurs please call a qualified air conditioner
• Besureto connect t heearthlinefromthepowersupplyWire to theoutdoor unitandbetween
the outdoor and indoor unit 00 not connect the earth Ine to the gas tube, water pipe, ighting rod orthe earth line ot the
tel hone unitl ro er earthin ma cause electrvc shocks
• When finishing the refrigerantcollection (pumping down), stop the compressor and then remove the cmlant pipe
If you remove the refrigerant pipe while the compressor is operating and the service valve is released, air is sucked and a
essure in the freezin cles em will buildu stee , causin an ex losion or inu
en installing e 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 otthe 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.
Other.vise tire or electric shock mi ht occur b connection tailure isolation failure or over current
• Make sureto connect cables to terminal properlyand terminal cover should close firmly.
Otherwise over heatin at terminal contact tire or electric shock mi ht occur
• Make sure that there is no dust on any connected points of electric cables and fix firmly
Othenvise, fire or electric shock mi ht occur
• Please mount the Outdoor unit 01stable ground to prevent vibration and increase Ofnoise level
• Decide the location tor piping after sorting out the different types ot pipe available
• When removing side cover, please pull the handle after undoing the hook by pulling it downward
reverse order Of the removal
when
face
*ease face this Sde
wall
10
•DO not touch the suction port. bottom surface.or aluminum fin Of the outdoor unit. Failure to do so
A CAUTION
may cause an injury
CONDENSED WATER DISPOSAL OF OUTDOOR UNIT
• There is holes on the base 01 Outdoor unit tor 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
ground as shown figure Join the drain pipe to one hale
• Atter installation, Check Whether the drain pipe Clings to the base firmly
100mm
ORAN HOLE
ORAIN HOLE
BUSH
Outer Same! er
Outer clameter
ODRAIN PIPE
16 or
16 mm or
• Install the outdoor unit horizontally and make sure that condensate drains away
• In case of using in chilly area, Especially, in case aremany snows byvery cold in chilly area, condensed water freezes
Onthe base and may result not to drain In this case. please remove the bush and the drain pipe at the bottom of unit (Left and
center near discharge portion of air, each I place) It becomes smooth drain Ensure that the distance from the drain hole to
the ground is 250 mm or more
ONLY
A CAUTION
• A circuit breaker must be installed in the house distribution box for the direct
connætedpowersupplycablestothe Outdoor u nit Incase OfOtherinstallations
a mainswitchwitha contact gap or more than3mm has to be installed.
Without a circuit breaker.the danger of electric shock exists
. Do not install the unit near a locationwhere thereisflammablegas
The outdoor unit may catchfire if flammablegas oaks around it
For Installation Work
• Pleaseensure smtoth flcønofwater when installing thedrain hose Improper
use tool for R410A,R32)
installin m wet ur tumiture
•Measuring Tape •Knife • Saw
• IEC approved power should be used Power cord
• Hexagonal Wrench Key
THE CHOICE OF MOUNTING
@ Gas leakage
(Please note the '01 mølers and obtai isse•
• Putty • Vinyl Tape • Pliers •
Valve A WARNING
@ Vacuum Pum
• The Outdcnr unit must be mounted at a bcation Whichcan support heavy
weight Otherwise, noise and vibration will increase
A CAUTION
This appliance is filled with R32
• Selectingthe installationlocation: Suitablelocationthat will reducethe irnpact
trom rain and direct sun that may affect the unit pedormance
Besides,ventilation must be good and clear Ofobstruction
• The air blown out of the unit should not point directly
• The clearances Oftheunit from top,left.rightand front are specified in frgure
below At least three the above sidesmust be open air
• Be sure that the hot air blmvn out Of the unit and noise do not disturb the
neighbourhood
• DOnotinstall ata locationwherethereis flammable gas,steam,oilandsmoke
• The Iwation must be convenient tor water drainage
• Placethe Outdoo•r unitand its connecting cordat least 1mawayfromthe antenna
orsignal line 01television, r adioor telephoneThis isto avoidnoise interference
Figure showing the Installation
Names
Dimension of Mounting
Stand of the Outdoor unit
RAC-25•3SFXE
MoI " M g Stand
o
r I or ults
contact with fe,a oisonaus as m
ntgas Baks
occur
(unit : mm)
The cbarances ot the
fromtcp. let. right
and arespecitsi
Reinsta the side cover in the
Please
and
Drain hose
Drains the dehumidified water trom the indoor unit to the
outdoor during •cooling" or "dehumidifying" operation
Piping and Wiring
Air inlets (Rear and left sides)
above the
Air outlet
is performed,
cool air blowsandwhen"cooling" or
"dehumidifying" operation is performed,
warm air blows
About the outdoor unit:
• "Stop' is selected during operation
Of the indoor the Of the OutdCOr
unit continues turning 'Or 10 td 60
to the electric parts down
O DRAIN PIPE
n operation. condensate or
water due defrosth3 will fm
Do not the drain port the outdoor
unit because water may freeze in
the chill area
When outdoor unit is hung on the
ceiling, •nstall the bush and drain Pipe
on the drain pon and drain water
1 Preparationof Pipe
• Use a pipe cutter to cut the copper pipe and remove burr
Trimming tool
\
Copper pipe
• Before flaring, please put on the flare nut
NYM
SITE
A • Please use
trom customer before nstallatjon
exclusive tool
refrigerantR4tOA,
Copper pipe R32
2 Pipe Connection
• In case of removing flare nutof a indoor unit, first remove a nut of smal
diameter side. or a seal cap Ofbig diameter side Will fly Out Free from
water into the piping when working
A CAUTION
animals or plants • Be sure to tighten the flare nut ta the specified torque with a torque wrench
II the flare nut is overtightened, the nut may be split altera long period has
passed, and may cause a refrigerant leak
• Please be careful when bending
the copper pipe.
• Screw in manually while adjusting
the center After that, use a torque
Sma
wrench to tighten the connection
Largediameterside
Flare nut
ot Outdoor unit. Valve
headcap
of Outdoor
nents
Drain Pipe
A WARNING
• TH S APPLIANCE
Procedures of Wiring
Drain Pipe
u nil Outdoor unit
Bush
• machine
Connecting Cord
easily affected moisture use
to water f'
lhe cycle
• differ n height bet—
the indoor and Outdoor unit
be 10m
Detail of Cutting the Connecting Cord
big or small, should all be
with
Outdcx)r unit
then wrapped With vinyl
160mm
will æeriorate
d with
The o:w-.ectian at maulateC
strip
drain
Inner diameter '6mm
Green
Yellow
20mm
hoSO'or the 'ndoor p.p.ng
A WARNING
give as wide • The naked part Ofthe Wire core should be Iomm fix it to the terminal tightly. Then
as possible
try to pull the individual Wireto check it the contact is tight Improper insertion may
2 OCmm
burn the terminal
• ae sure to use only Wire specified for the use 01air-conditioner.
• Please refer to the manual for wire connection and the wiring technique should
at least 2 sides space meet the standard ot the electrical installation
the unit to ensure ventlaticm due
• There is an AC voltage drop between the LN terminal if the power is on Therefore,
be sure to remove the plug trom its socket
• When the fuse (F5 or FS) has been blown out by
give clearance as Wide
cable, can be restored by exchangingthetuse (servicepart No HWRAC-50NX2A52)
Pleaseexchange the blown-out fuse after making surethe 'Wit connection
PowerSourceAnd OperationTest
Power Source
A WARNING
• Never remodel the power plug nor extend the long-distance
Keep additional ength for the power cord and do not render
the plug under external torce asthis may cause poor contact
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
• 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
• If the indoor unit wont operate, check the cable for correct
connection
• Turn on the lamp in the room where the indoor unit is installed
and check the remote controller for normal operation
Removeot Air From ThePipe And GasLeakageInspection
Procedures Of using Vacuum
As shown 'n nght "gore, remove the cap
A CAUTION
ot valve core Then, connect the charge
• Remove burr and jagged edge WillCauseleakage
hose Remove the cap of valve head
• Point the Side to be trimmed downwards during
Connect the vacuum pump adapter to tho
trimming to prevent copper chips from entering
vacuum pump and connect the charge
the pipe
hose the adapter.
Outer A (mm) id Flarin Tool
Fully tighter the •Hi" shuttle of the manifold
Diameter ( O) For R41N.R32tocl For tool
valve and completely unscrew the •Lon
Shuttle Run the Vacuum pump
6.35(1/4", 0-0.5
IO-15 minutes, then completely tighten the
9 S2ß•8 0-05
"Lo• shuttle
12 7 0-05
pump
Loosen the spindle Ofthe service valve
With small diameter by 1/4 turn and
tighten the spindle immediately after 5
to 6 seconds
• Remove the charging hose from the
service
Completely unscrew the spindle ot the
service valve (at 2 places) in anticlockwise
direction to allow the flow of refrigerant
Torque (using Hexagonal Wrench key)
Outer diameter
ofpipe(e) (kgl.cm)
Tighten the cap of valve head Check the
side
6.35 137-186 140 190
cap's periphery It there is any gas leakage
9 52 (3B") 34 3-441(350-450)
The task is then completed
12 7 44 1-53 g 550)
Small diarreter side 6 35 (1/41
250) Gas leakage inspection
200.250
Please use gas leakage detector to check if leakage occurs at
127 t 29 4-34 3 300 35d connection 01 Flare nut as shown on the right
Valvecorecap 123-157(125 160) It gas leakage occurs, further tighten the connection to stop leakage
• Leavesome space in theconnectingcord for maintenancepurposeand be
MUST BE EARTHED
sure to secure it with the
WARNING • Secure theconnecting cordalong thecoated partofthewireusing the
band.DOnotexert pressureon the Wireasthis may cause overheatingor fire.
Wiring of the Outdoor Unit
Please remove the side ccn'er tor wire connection
• It you cannot attachthe Side plate due to the connectioncord, pleasepress theconnecting
rnrd in the direction to the tront panel
• Besurethat thehooks oftheside coverfixed in certainl•yOtherwisewater eakagemay occur
WARNING andthiscauses short c ircuit O rfaults.
• Vhe connecting cord should not touch to service valve and pipes
(itbecomes hightemperature in heatingoperation)
AC 220-230V
Checking for the electric
10 SOHz
• 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 tor the wiring from house distribution
fuse box to the outdoor unit in consideration
Connecting cord
Cord ba
RAC-2s,a5FXE
• Investigate the power supply capacity
electrical conditions at the instal ing location
Dependingon the mode of room air conditioner to be
installed, request the customer to make arrangements
for the necessary electrical work etc
The electrical includes the Wiring work up the
outdoor unit In localities where
are poor, use of avoltage regulation is recommended
irnproperconnection Ofpower
• Install outdoor for the room air conditioner
reaching range Of the line cord
Refrigerant
erant
Mooa
RAC.50FXE RS2:1 200
Pump for Air Removal
Ivt-,er, m e reaches - 101KPd
(-76cmHg) during pumping fully
tighten the shuttle
R.IOA.R-32
Manifold
about
and switch off the vacuum
adapter
valve
pumping starts. slight'/
la check
air Then
valve
Cap ot
Cap ot h
Cap ot
cord band
fix it
source and the voltage range
of the blocked rotor current
LN123
Cord band
Earth
terminal
Earh
terminal
and other
IMPORTANT
Fuse Capacity
RAC-25FXE
RAC-35FXE 25A time delay fuse
RAC-50FXE
electrical conditions
Wire Wire cross-section
up tc 6m 1 5rnm2
within the
upto 15m 2 5mrn2
up to 20m Ornm2