Mitsubishi Electronics PUHY-YMC installation manual Contents

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ENGLISH

Contents
1. Safety precautions	3
1.1. Before installation and electric work	3
1.2. Before getting installed	3
1.3. Before getting installed (moved) - electrical work	4
1.4. Before starting the test run	4
2. Combination with indoor units	5
3. Confirmation of parts attached	5
4. Outdoor unit configuration	6
5. Selection of installation site	6
6. Space required around unit	7
6.1. Individual installation	7
6.2. Collective installation and continuous installation	8
7. Lifting method and weight of product	8
8. Installation of unit	9
8.1. Location of anchor bolt	9
8.2. Installation	9
8.3. Connecting direction for refrigerant piping	10
8.4. Noise level	10
9. Caution for snow and seasonal wind	11
9.1. Snow and seasonal wind	11
9.2. Countermeasure to seasonal wind	11
10. Refrigerant piping installation	12
10.1. Areas of caution	12
10.2. Refrigerant piping system	13
10.3. Precautions concerning piping connection and valve
operation	15
10.4. Oil balance pipe connection method	18
10.5. Distributor (gas) connection method	19
10.6. How to install branch pipe	20
10.7. Airtight test and evacuation	21
10.8. Thermal insulation of refrigerant piping	22
11. Electrical work	24
11.1. Caution	24
11.2. Control box and connecting position of wiring	25
11.3. Wiring transmission cables	27
11.4. Wiring of main power supply and equipment
capacity	33
12. Test run	34
12.1. Checking before getting test run	34
12.2. Test run method	34
12.3. How to cope with test run abnormality	35
12.4. Coping with remote controller abnormality	37
12.5. The following phenomena do not represent
abnormality (emergency)	38

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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 attachedModel Name Connecting pipe Elbow Shape Outdoor unit configurationSelection of installation site Variable capacity unit Constant capacity unitWhen there is an obstruction above the unit Individual installationWhen inlet air enters from right and left sides of unit Space required around unitBe very careful to carry product Lifting method and weight of productCollective installation and continu- ous installation Example of collective installation Installation of unitInstallation Location of anchor bolt60/61 dB A-weighted Connecting direction for refrigerant pipingDown piping and down wiring precautions Noise levelPUHY-400/500YMC Snow and seasonal windCountermeasure to seasonal wind 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 open100 to 1000 to Tightening angle standard Pipe diameter mm 50 to 57.5 / 500 to75 to 750 to 60 toOil balance pipe connection method Distributor gas connection method Part could be damaged if not cooled sufficientlyRestrictions on the posture for attaching joints How to install branch pipeJoint 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 Hole For details, see item 11.3. Wiring transmission cablesPlate Transmission booster optionalWiring examples Wiring transmission cablesConnecting a transmission booster Name, code and possible unit connectionsOne remote control unit for each indoor unit Wiring method, address settingRemote control RC terminal block TB6 Within Address Unit Remote control operation Same as aboveFor details, see wire connection example C Unit Range Setting method Wiring LineSame group to the remote control RC terminal block TB6 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 Checking before getting test run Operation procedureTest run Test run methodHow to cope with test run abnormality AbnormalityDisplay at LED lighting blinking Remarks Flag Relay output 6603 Transmission error Transmission route Busy ErrorPower on 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