Mitsubishi Electronics PUHY-YMC installation manual For details, see wire connection example C

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Permissible length

Prohibited items

Length of the wire to the most remote indoor unit in the system (1.25 mm2) L1 + L2, L2 + L3, L3 + L1 = 200 m Remote control wire length

1In the case of 0.5 - 0.75 mm2 wire, r1 , r2 = 10 m

2If the length exceeds 10 m, use 1.25 mm2 wire and let the length be within the length of the wire to the most remote indoor unit in the system. (L3).

Same as above.	OS	OC
Same as above.
						IC		IC
	(52)	(51)
					(01)			(02)
	TB3	TB3	TB7	TB5		TB13	TB5	TB13
	M1 M2 S	M1M2	M1M2 S	M1M2 S		1 2 3	M1M2 S 1 2		3
	Shielded cable		TB6			TB6	TB6	TB6		TB6
			TB6			TB6	TB6	TB6		TB6
			(101)			(151)	(102)	(103)	(152)	(104)
			RC			RC	RC	RC		RC
			(Main remote		(Sub remote		(Main remote	(Sub remote
			controller)		controller)		controller)	controller)

•Let the address of the sub remote controller be the indoor unit (IC) address + 150. In this case, the address would be 152.

•More than 3 remote control (RC) units cannot be connected to one indoor unit.

Same as above.

OS		OC
				IC (Main)		IC (Sub)
(52)		(51)
				(01)		(02)
TB3		TB3	TB7	TB5	TB13	TB5	TB13
M1 M2	S	M1M2	M1M2 S	M1M2 S	1 2 3	M1M2 S	1 2 3
	Shielded cable
				TB6
				(102)	(101)

RC

• The remote controller address is the indoor unit main address + 100. In this case, it is 101.

Note:

1.If there is one or more 200 or higher indoor units within the same cooling system, and the number of indoor units exceeds 16 units, a transmission booster is necessary. (When a “PAR-F25MA Ver. F or subsequent version of remote control is used)

2.If there is not even one 200 or higher indoor unit within the same cooling system, and the number of indoor units exceeds 20 units, a transmission booster is necessary. (When a “PAR-F25MA Ver. F or subsequent version of remote control is used)

* For details, see wire connection example C.

ENGLISH

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Contents PUHY-YMC Contents Before getting installed Safety precautionsBefore installation and electric work Before starting the test run Before getting installed moved electrical workConfirmation of parts attached Combination with indoor unitsSelection of installation site Outdoor unit configurationModel Name Connecting pipe Elbow Shape Variable capacity unit Constant capacity unitWhen inlet air enters from right and left sides of unit Individual installationWhen 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 Installation of unitExample of collective installation Location of anchor boltDown piping and down wiring precautions Connecting direction for refrigerant piping60/61 dB A-weighted Noise levelCountermeasure to seasonal wind Snow and seasonal windPUHY-400/500YMC PUHN-200/250YMCNever perform a pump down. This will damage the compressor Refrigerant piping installationAreas of caution + α Refrigerant piping systemMultiple line/header For variable capacity unit Precautions concerning piping connection and valve operationFigure shows valve fully open Gas side Liquid side Oil balance side75 to 750 to 50 to 57.5 / 500 to100 to 1000 to Tightening angle standard Pipe diameter mm 60 toOil balance pipe connection method Part could be damaged if not cooled sufficiently Distributor gas connection methodJoint How to install branch pipeRestrictions on the posture for attaching joints Gram belowEvacuation Airtight test and evacuationAirtight test Thermal insulation of refrigerant piping No heat insulation must be provided for electric wiresInner wall concealed Floor fireproofing PenetrationsElectrical work Constant capacity unit Control box and connecting posi- tion of wiringVariable capacity unit Plate For details, see item 11.3. Wiring transmission cablesHole Transmission booster optionalConnecting a transmission booster Wiring transmission cablesWiring examples Name, code and possible unit connectionsRemote control RC terminal block TB6 Wiring method, address settingOne remote control unit for each indoor unit Within Address Unit Remote control operation Same as aboveFor details, see wire connection example C Same group to the remote control RC terminal block TB6 Wiring LineUnit 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 Test run Operation procedureChecking before getting test run Test run methodAbnormality How to cope with test run abnormalityPower on 6603 Transmission error Transmission route Busy ErrorDisplay at LED lighting blinking Remarks Flag Relay output Flag 8 always lightsCoping with remote controller abnormality Following phenomena do not represent abnormality emergency NMK Nkok NknkNkqk NKPK#$%&*+#$%&*+#,%&- ./0123145&6789#$%&=?@. !# Sknk #$% +,-.Ü SkokUknk TK=Ukok Ukpk Ukqk Vkok Nmknk = NMK=$%&*+,-./01 NMKOK=#$%&*+QMã NMKPK=L Ãã ! k·ãLâÖJÅã NMKQK=#$%&#*#%+, -. !*# NMKRK= NMKSK= #$%& *+& 012345678 .#$%&*+,-./0 1$%#234 NNKNK= NNK=NNKOK= Rsrv NNKPK=#$% +,-./012 NRO #$% +,-./0/12`kQN =EqRF= !# $%&*+ Vwt NNKQK=NOKOK= NOKNK=NOKPK= EptNF EibaF NOKQK= `ççäáåÖ EÉ~íáåÖ NokrkNMK Nknk Nkqk #$%&!*+ 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