Fujitsu ARHG12LLTB

En-10
6. ELECTRICAL WIRING
Cable Cable size (mm
2
) Type Remarks
Connectioncable 1.5 Type60245IEC57 3Cable+Ground,1φ230V
Max.CableLength:Limitvoltagedroptolessthan2%.Increasecablegaugeifvoltagedropis
2%ormore.
WARNING
• Electrical work mustbe performed in accordance with this Manual by a person
certiedunderthenationalorregionalregulations.Besuretouseadedicatedcircuit
for the unit.
 Aninsufcientpowersupplycircuitorimproperlyperformedelectricalworkcancause
seriousaccidentssuchaselectricshockorre.
• Beforestartingwork, checkthat powerisnot beingsupplied totheindoor unitand
outdoor unit.
• Forwiring, use the prescribed typeof cables, connect them securely,making sure
that there are no external forces of the cables applied to the terminal connections.
Improperly connected or secured cables can cause serious accidents such as
overheatingtheterminals,electricshock,orre.
• Securelyinstalltheelectricalboxcoverontheunit.
An improperly installed electrical box cover can cause serious accidents such as
electricshockorrethroughexposuretodustorwater.
• Installsleevesintoanyholesmadeinthewallsforwiring.Otherwise,ashortcircuit
could result.
• Use the included connection cables and power cables or ones specified by the
manufacturer. Improper connections, insufficient insulation, or exceeding the
allowablecurrentcancauseelectricshockorre.
• Donotmodifythepowercables,useextensioncables,oruseanybranchesinthe
wiring. Improper connections, insufficient insulation, or exceeding the allowable
currentcancauseelectricshockorre.
• Match the terminal blocknumbers and connection cable colors with those of the
outdoor unit or branch box. Erroneous wiring may cause burning of the electric parts.
• Securelyconnecttheconnectioncablestotheterminalboard.Inaddition,securethe
cables with wiring holders. Improper connections, either in the wiring or at the ends
ofthewiring,cancauseamalfunction,electricshock,orre.
• Alwaysfastentheoutsidecoveringoftheconnectioncablewiththecableclamp.(If
theinsulatorischafed,electricleakagemayoccur.)
• Installaearthleakagebreaker.Inaddition,installtheearthleakagebreakersothat
theentireACmainpowersupplyiscutoffatthesametime.Otherwise,electricshock
orrecouldresult.
• Always connect the earth cable.
Improper grounding work can cause electric shocks.
• Install the remote controller cables so as not to be direct touched with your hand.
• Performwiringworkinaccordancewithstandardssothattheairconditionercanbe
operated safely and positively.
• Connecttheconnectioncablermlytotheterminalboard.Imperfectinstallationmay
causeare.
CAUTION
• Groundtheunit.
Do not connect the earth cable to a gas pipe, water pipe, lightning rod, or a telephone
earth cable.
Improper grounding may cause electric shock.
• Do not connect powersupply cables to the transmissionor remotecontroller
terminals, as this will damage the product.
• Neverbundlethepowersupplycableandtransmissioncable,remotecontrollercable
together.
 Separatethesecableby50mmormore.
Bundling these cables together will cause miss operation or breakdown.
• WhenhandlingPCB,staticelectricitychargedinthebodymaycausemalfunctionof
thePCB.Followthecautionsbelow:
• Establishagroundfortheindoorandoutdoorunitsandperipheraldevices.
• Cutpower(breaker)off.
• Touch metal part of the indoor and outdoor units for more than 10 seconds to
discharge static electricity charged in the body.
• DonottouchterminalsofpartsandpatternsimplementedonPCB.
(1) Useringterminalswithinsulatingsleevesasshowninthegurebelowtoconnectto
the terminal block.
(2) Securelyclamptheringterminalstothecablesusinganappropriatetoolsothatthe
cables do not come loose.
(3) Usethespeciedcables,connectthemsecurely,andfastenthemsothatthereisno
stress placed on the terminals.
(4) Useanappropriatescrewdrivertotightentheterminalscrews.
Do not use a screwdriver that is too small, otherwise, the screw heads may be
damaged and prevent the screws from being properly tightened.
(5) Donottightentheterminalscrewstoomuch,otherwise,thescrewsmaybreak.
(6) Seethetablefortheterminalscrewtighteningtorques.
(7) Pleasedonotx2powersupplycableswith1screw.
Strip10mm
Sleeve
Screwwithspe-
cial washer
Screwwith
special washer
Ring terminal
Cable
Cable
Terminal block
Ring terminal
Ring
terminal
WARNING
• Useringterminalsandtightentheterminalscrewstothespeciedtorques,otherwise,
abnormal overheating may be produced and possibly cause heavy damage inside
the unit.
Tightening torque
M4screw
1.2to1.8N·m
(12to18kgf·cm)
9374815173-04_IM.indb 10 9/21/2011 1:45:23 PM