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Contents PUHY-YMC Contents Before getting installed Safety precautionsBefore installation and electric work Before getting installed moved electrical work Before starting the test runCombination with indoor units Confirmation of parts attachedOutdoor unit configuration Selection of installation siteModel Name Connecting pipe Elbow Shape Variable capacity unit Constant capacity unitIndividual installation When inlet air enters from right and left sides of unitWhen there is an obstruction above the unit Space required around unitBe very careful to carry product Lifting method and weight of productCollective installation and continu- ous installation Installation of unit InstallationExample of collective installation Location of anchor boltConnecting direction for refrigerant piping Down piping and down wiring precautions60/61 dB A-weighted Noise levelSnow and seasonal wind Countermeasure to seasonal windPUHY-400/500YMC PUHN-200/250YMCNever perform a pump down. This will damage the compressor Refrigerant piping installationAreas of caution Refrigerant piping system + αMultiple line/header Precautions concerning piping connection and valve operation For variable capacity unitGas side Liquid side Oil balance side Figure shows valve fully open50 to 57.5 / 500 to 75 to 750 to100 to 1000 to Tightening angle standard Pipe diameter mm 60 toOil balance pipe connection method Distributor gas connection method Part could be damaged if not cooled sufficientlyHow to install branch pipe JointRestrictions on the posture for attaching joints Gram belowEvacuation Airtight test and evacuationAirtight test No heat insulation must be provided for electric wires Thermal insulation of refrigerant pipingPenetrations Inner wall concealed Floor fireproofingElectrical work Constant capacity unit Control box and connecting posi- tion of wiringVariable capacity unit For details, see item 11.3. Wiring transmission cables PlateHole Transmission booster optionalWiring transmission cables Connecting a transmission boosterWiring examples Name, code and possible unit connectionsWiring method, address setting Remote control RC terminal block TB6One remote control unit for each indoor unit Within Address Unit Remote control operation Same as aboveFor details, see wire connection example C Wiring Line Same group to the remote control RC terminal block TB6Unit Range Setting method Main remote controllerExtended length and the length to the most remote unit Capability Number of connected indoor units that can be WiringBooster RP Wiring of main power supply and equipment capacity Operation procedure Test runChecking before getting test run Test run methodHow to cope with test run abnormality Abnormality6603 Transmission error Transmission route Busy Error Power onDisplay at LED lighting blinking Remarks Flag Relay output Flag 8 always lightsCoping with remote controller abnormality Following phenomena do not represent abnormality emergency NMK Nknk NkokNKPK#$%&*+ Nkqk#$%&*+#,%&- ./0123145&6789#$%&=?@. !# Sknk Skok #$% +,-.ÜTK= UknkUkok Ukpk Ukqk Vkok NMK= Nmknk =NMKOK= $%&*+,-./01#$%&*+QMã NMKPK=L NMKQK= Ãã ! k·ãLâÖJÅã#$%&#*#%+, -. !*# NMKRK= NMKSK= #$%& *+& 012345678 .#$%&*+,-./0 1$%#234 NNK= NNKNK=NNKOK= NNKPK= Rsrv#$% +,-./012 NRO #$% +,-./0/12`kQN =EqRF= !# $%&*+ NNKQK= VwtNOKNK= NOKOK=NOKPK= EptNF EibaF NOKQK= Nokrk `ççäáåÖ EÉ~íáåÖNMK Nknk Nkqk #$%&!*+ Sknk Skok TK= Ukok Ukpk Ukqk Vkok NMK= NMKOK= #$%&*+QMã NMKPK=L NMKQK= #$%&#*#%+, -. !*# NMKRK= NMKSK= #$%& *+& 012345678 .#$%&*+,-./0 1$%#234 NNK= NNKOK= NNKPK= #$% +,-./012 NRO #$#%&* +,-./0123456 =EqRF= !# $%&*+ NNKQK= NOK= NOKPK= EptNF EibaF NOKQK= Nokrk WT02922X02