Hitachi RPC-6.0FSR - Contacting the Distributor

A10762300A-rev.1
19
6. Drain Piping
Performthedrainpipingworkafterconnectingthe
refrigerantpipesandattachinginsulations.
● Donotcreateanupper-slopeorriseforthedrain
piping,sincedrainwatercanowbacktothe
indoorunitandleakageintotheroomwilloccur
whenthesystemoperationisstopped.
● Donotconnectthedrainpipewithsanitaryor
sewagepipingoranyotherdrainagepiping.
● Whenthecommondrainpipingisconnectedwith
otherindoorunits,theconnectedpositionofeach
indoorunitmustbehigherthanthecommon
piping.Thepipesizeofthecommondrainpipe
mustbelargeenoughaccordingtotheunitsize
andnumberofunits.
● Afterperformingdrainpipingworkandelectrical
wiring,checktoensurethatwaterowssmoothly
asinthefollowingprocedure.
Do not insert the drain pipe for the indoor unit
to the drainage trench where corrosive gases
occur. Poisonous gases ow into the room, so
that may cause the poisoning.
(1) ConnectingDirectionofDrainPipe
 Thestandarddirectionofdrainpiping
connectionisrightsideasviewedfrom
front.However,itcanbeperformedfromthe
leftsidewhenitisrequiredduetobuilding
construction.
(2) ConnectingDrainHose
(a) Insertthehoseintothehoseclamp.
(b) Pushthedrainhoseontothedrainboss
untilthehosereachestheendofdrain
pan.(Ifthedrainhoseisnotinserted
completely,itcauseswaterleakage.)
(c) Tightenthescrewforhoseclamptoface
thescrewpartdownwardasshowninthe
gurebelowtopreventdewdrop.
(d) Wraptheinsulation(accessory)around
thehoseclamptocoverdrainhose,drain
pan,hoseclampwithoutgap.(Ifthereis
gap,dewdropmayoccur.)
 <ForLeftSideDrainPiping>
Insulation
Drain Plug
Drain Boss
Left Side
Right Side
Cord Clamp
Drain Pan
Remove the drain plug.
Silicon Sealant
Wrap the insulation around
the drain pipe connection.
Drain Plug
Insert the drain plug into
the drain boss by using a driver.
Driver
Drain Plug
Left Side
Right Side
(Refrigerant Pipe
Connection)