Mitsubishi Heavy Industries FDCR224KXE6 User Manual

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38
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'11 • KX-T-166
6.3 Method for connecting the accessory pipe
Method for connecting the accessory pipe
Be sure to use the accessory pipe to connect the operation valve on the
gas side with the field pipe.
Table 1 Parts used for the connecting pipe assembly
Table 2 Length and specification of straight pipe (Procured in the field)
1 ReferringtoTable 1 andTable 2 ,preparethestraightpipeandtheelbowinthefield,whichare
usedintheconstructionexamplesA-Dapplicabletotheconnectingdirection.
2 Firstly,usetheaccessorypipetoassembletheconnectingpipeassemblyoutsidetheoutdoorunit.
Asshowninthefiguresofconstructionexamples A
〜
D applicabletotheconnectingdirection
(chaindoubledashedline),brazetheaccessorypipeandthepartspreparedintheabove 1 .
●Orienttheaccessorypipeaccordingtothedimensionsasshownin ofFig.1.
3 Afterassemblyoftheconnectingpipe,connectittotheoperationvalveonthegassideinsidethe
outdoorunit.
Tightentheflarenutwithappropriatetorque.
4 Afterconnectionoftheconnectingpipeassemblytotheoperationvalveonthegasside,brazethe
connectingpipeassemblyandthefieldpipe.
5 Afterthebrazing,insulateusingtheattachedheatinsulatingmaterialandbandasshownbyFig.2.
Ifnonitrogengasissupplled,alargeamountofimpurity(oxidizedfilm)willbegenerated,
whichmayclogthecapillarytubeandtheexpansionvalve,resultinginfatalmalfunction.
Besuretousepipesof1/2Hmaterial,andwallthicknessabove1mm.(PressureresistanceofO-type
pipeisnotenough)
Selectandusethepipes,whichareprocuredinthefield,
accordingtothespecificationthatcorrespondstothe
outdoorunitcapacityasdescribedintheinstallationmanual.
Be sure to braze while supplying nitrogen gas.
About brazing
Name
Accessorypipe
Heatinsulatingmaterial
Band
Straightpipe
1
Straightpipe
2
Elbow
A
Downward
B
Forward
C
Rightward
D
Backward
No.
1
2
3
4
5
6
Quantity
1
1
2
1
1 or 0
1 or 0
Remark
Accessory
Accessory
Accessory
Procuredatthefield
Procuredatthefield(Notrequiredfordownwarddirection)
Procuredatthefield(Notrequiredfordownwarddirection)
Straight pipe
1
Straight pipe
2
Straightpipe
1
Straightpipe
2
270mmorover
—
70〜120mm
125mmorover
70〜120mm
125mmorover
70〜120mm
515mmorover
224
280
ø19.05-ø25.4
ø22.22-ø28.58
PSB012D917G
k
ø19.05 100~120N·m
Accessorypipe
Accessorypipe
Accessorypipe
Accessorypipe
Internalfaceofbase
Operationvalveconnecting
positionatgasside
Band
Proper torque
(Accessory)
(Accessory)
Pipe specification
Heatinsulatingmaterial
Internalfaceofbase
(Procuredinthefield,
125mmormore)
Straightpipe
2
(Procuredinthefield,
125mmormore)
Straightpipe
2
(Procuredinthefield,
515mmormore)
Elbow,
procuredinthefield
Elbow,
procuredinthefield
Elbow,
procuredinthefield
Brazetherefrigerantpipehere.
Brazetherefrigerantpipehere.
Brazetherefrigerant
pipehere.
Brazetherefrigerant
pipehere.
Connection example of refrigerant pipe -
B
(Forward connection)
Connection example of refrigerant pipe -
D
(Backward connection)
Connection example of refrigerant pipe -
C
(Rightward connection)
Connectionexampleofrefrigerantpipe-
A
(Downwardconnection)
Heat insulating method
(Fig. 2)
Accessorypipex1pc
Heatinsulating
materialx1pc
Bandx2pcs
Heatinsulatingmaterialisattachedtotheaccessorypipewith
band.Wheninstallingtheheatinsulatingmaterial,cuttheband
andretrieveit.
Twopiecesoffig.2bandforinstallationarefoundinabag.
40
67
(Procuredinthefield,
70-120mm)
Straightpipe
1
(Procuredinthefield,
70-120mm)
Straightpipe
1
(Procuredinthefield,
70-120mm)
Straightpipe
1
(Procuredinthefield,
270mmormore)
Accessory pipe position
(Fig. 1)

Mitsubishi Heavy Industries FDCR224KXE6 Specifications

General

Brand	Mitsubishi Heavy Industries
Model	FDCR224KXE6
Category	Heat Pump
Language	English