Mitsubishi MXZ-4E80VAD - Flaring Work and Pipe Connection

En-5
Fig. 1 Fig.2
Fig.3 Fig.4
Fig.5 Fig.6
3-1. FLARING WORK
Pipediameter
(mm)
Nut
(mm)
A(mm) Tighteningtorque
Clutch
typetool
forR410A
Clutch
typetool
forR22
Wing nut
typetool
forR22
N•m kgf•cm
ø6.35(1/4”) 17
0to0.5 1.0to1.5
1.5to2.0
13.7to17.7 140to180
ø9.52(3/8”) 22 34.3to41.2 350to420
ø12.7(1/2”) 26
2.0to2.5
49.0to56.4 500to575
ø15.88(5/8”) 29 73.5to78.4 750to800
TiltedUnevenBurred
Good
No good
Burr
Copperpipe
Sparereamer
Pipecutter
Smooth all
around
Evenlength
all around
Inside is shin-
ingwithoutany
scratches.
Flare nut
Die
Copperpipe
Clutchtype
Flaring tool
Wingnuttype
3-2. PIPE CONNECTION
1)Applyathincoatofrefrigerationoil(G)tothearedendsofthepipesand
thepipeconnectionsoftheoutdoorunit.Donotapplyrefrigerationoilon
screwthreads.Excessivetighteningtorquewillresultindamageonthe
screw.
2)Alignthecenterofthepipewiththatofthepipeconnectionsoftheoutdoor
unit,thenhandtightenthearenut3to4turns.
3)Tightenthearenutwithatorquewrenchasspeciedinthetable.
•Over-tighteningmaycausedamagetothearenut,resultinginrefriger-
antleakage.
•Besuretowrapinsulationaroundthepiping.Directcontactwiththebare
pipingmayresultinburnsorfrostbite.
3-3. INSULATION AND TAPING
1)Coverpipingjointswithpipecover.
2)Foroutdoorunitside,surelyinsulateeverypipingincludingvalves.
3)Usingpipingtape(E),applytapingstartingfromtheentryofoutdoorunit.
• Stoptheendofpipingtape(E)withtape(withadhesiveagentattached).
• Whenpipinghavetobearrangedthroughaboveceiling,closetorwhere
thetemperatureandhumidityarehigh,windadditionalcommerciallysold
insulationtopreventcondensation.
Copper
pipe
1)Cutthecopperpipecorrectlywithpipecutter.(Fig.1,2)
2)Completelyremoveallburrsfromthecutcrosssectionofpipe.(Fig.3)
• Aimthecopperpipedownwardwhileremovingburrstopreventburrs
fromdroppinginthepipe.
3)Removearenutsattachedtoindoorandoutdoorunits,thenputthem
onpipehavingcompletedburrremoval.(Notpossibletoputthemon
afteraringwork.)
4)Flaringwork(Fig.4,5).Firmlyholdcopperpipeinthedimensionshown
in the table. Select A mm from the table according to the tool selected.
5)Check
• ComparethearedworkwithFig.6.
• Ifareisnotedtobedefective,cutoffthearedsectionanddoaring
workagain.
WARNING
When installing the unit, securely
connect the refrigerant pipes before
starting the compressor.
CAUTION
When there are the ports which are
not used, make sure their nuts are
tightened securely.
3. FLARING WORK AND PIPE CONNECTION
• Besuretoattacheachscrewtoitscorrespondentterminalwhensecuringthecordand/orthewiretotheterminalblock.
• Makeearthwirealittlelongerthanothers.(Morethan35mm)
• Forfutureservicing,giveextralengthtotheconnectingwires.
1 2 3 C
<OUTDOORUNIT>
Indoor/outdoorunit
connectingwire
<INDOORUNIT>
Terminalblock
POWERSUPPLY
~/N230V50Hz
Terminalblock Terminalblock
Terminalblockfor
powersupply
Terminalblock
ThisunithasdemandresponsecapabilitywhichiscompliantwithAS/NZS4755.3.1.Toactivatethisfunction,youneedtomakeacontractwithremote
agentssuchaselectricsupplycompany,thenthisunitshouldbeconnectedtoDemandresponseenablingdevise(DRED).Forfurtherinformation,
consultyourdealer.Thisunitsupports3DemandResponseModes(DRMs):DRM1,DRM2andDRM3.
CAUTION
•Topreventmalfunctioncausedbynoise,routethecordconnectingthisunittoDREDandthepowersupplycordasparallelaspossible.
•Donotconnectthedemandcontroltransmissioncabletotheterminalblockforpowersupply.
•Donotpull,extremelybendorapplystrongpressureonthewiretopreventfailure.
•DonotscrewDREDtooutdoorunit.
•DonotputDREDinoutdoorunit.
•Secureelectricalwiringaboveclamp.
•DonotgetDREDwirecaughtintheservicepanel.
1:DRM1
2:DRM2
3:DRM3
C:COMMON
AS/NZS4755
terminalblock
35mm
15mm
Leadwire
Model
INDOOR/
OUTDOORUNIT
MXZ-5E100VAD
A
–
E
MXZ-4E80VAD
A
–
D
WG79A696H02_en.indd 5 2016/04/21 14:46:39