Fujitsu ARHG12LLTB

En-8
5. INSTALLING DRAIN PIPES
5.1A. Installing drain pipes (Ceiling concealed type)
Usegeneralhardpolyvinylchloridepipeandconnectitwithadhesive(polyvinylchloride)
so that there is no leakage.
Always heat insulate the indoor side of the drain hose.
Useadrainpipethatmatchesthesizeofthedrainhose(TableA).
• Donotperformarise,trapandairbleeding.
• Provideadownwardgradient(1/100ormore).
• Providesupportswhenlongpipesareinstalled.
• Useaninsulationmaterialasneeded,topreventthepipesfromfreezing.
• Installthepipesinawaythatallowsfortheremovalofthecontrolbox.
Table A
O.D.
Drain pipe 32mm(VP25)
CEILINGCONCEALEDTYPE(UseDrainPump)
Outletair
ow
Arrange the drain hose
lower than this port.
Drain hose
Trap
OK
NOGOODDrain cap NOGOOD
Rise
Air bleeding
Supporter
NOGOOD
1.5to2m
OK
• Installthedrainpipewithdownwardgradient(1/50to1/100)andsotherearenorises
or traps in the pipe.
• Use general hard polyvinyl chloride pipe (VP25) [outside diameter 32 mm] and
connectitwithadhesive(polyvinylchloride)sothatthereisnoleakage.
• Whenthepipeislong.Installsupports.
• Donotperformairbleeding.
• Alwaysheatinsulatetheindoorsideofthedrainpipe.
VP25
[O.D32mm
ormore]
Horizontalor
upward gradient
Supporter
Gapof1.5-2m
Locallyarrangedpipe
Max.
300mm
700mmorless
RiseAir bleeding
BAD
Trap
Observe the following procedures to construct centralized drain pipe ttings
.
VP30ormore[O.D38mmormore]
Downwardgradient1/100ormore
700mmorless
WARNING
• Do not insert the drain piping into the sewer where sulfurous gas occurs. (Heat
exchangeerosionmayoccur)
• Insulatethepartsproperlysothatwaterwillnotdripfromtheconnectionparts.
• Check for proper drainage afterthe construction by using the visible portion of
transparentdrainportandthedrainpipingnaloutletonthebody.
CAUTION
• Donotapplyadhesiveagentonthedrainportofthebody.
 (Usetheattacheddrainhoseandconnectthedrainpiping)
5.1B. Installing drain pipes (Wall mounted type/Floor
standing concealed type)
NOGOOD
OK
NOGOOD
RiseTrap
Drain
cap
CAUTION
• Drain pump cannot be usedif it is installed in wall mounted type/floor standing
concealed type.
• Set“7.4.JumperwiresettingofDrainagefunctionsetting(JM1)”.
• Besuretoconnectthepipesfordrainagewithoutleakage.
• Toavoidcondensationanddripping,alwaysinsulatetheindoordrainpipe.
5.2. Install the drain pipe
(1)BesuretousesuppliedDrainhose
1
andHoseband
2
2
Hoseband
Drain
hole
1
Drain hose
HardPVCside
• When drain pump is used.(Ceilingconcealedtypeonly)
Hoseband
4mmorless
20mm
• When drain pump is not used.(Naturaldrainage)
Jointpipe
(Fieldsupply)
Drainpipe(VP25)
(Fieldsupply)
Applying
area of
adhesive
4mmorless
CAUTION
• Whendrainpumpisnotused,donotconnecttheaccessorydrainhoseandsoftPVC
hose directly
.
9374815173-04_IM.indb 8 9/21/2011 1:45:22 PM