Mitsubishi Electronics PUHY-YMC installation manual Coping with remote controller abnormality

Page 37

Displaying the service LED

Service LED (LD1)

•Error code display

Alternate display of error generating address and error code

Example At outdoor unit address 51, abnormal discharge temperature (Code 1102)

•Flag display

Example SV1 ON under only compressor 1 operated

ABCDEFGH

A Flag 1	E Flag 5
B Flag 2	F Flag 6
C Flag 3	G Flag 7
D Flag 4	H Flag 8

12.4. Coping with remote controller abnormality

ENGLISH

ON/OFF –

CENTRALLY CONTROLLED		1Hr.
CHECK	ON OFF	˚C
CHECK	CLOCK

FILTER

	˚C			CHECK MODE
STAND BY	INDOOR UNIT	ERROR CODE	NOT AVAILABLE	TEST RUN
DEFROST	ADDRESS NO	OAUNITADDRESSNO	NOT AVAILABLE

	CLOCKON OFF
		FILTER
		CHECK
TEMP.	TIMER SET	TEST RUN
REMOTE CONTROLLER
PAR-F25MA

A

ADisplay: Appears when current is carried

	Phenomenon		Cause		How to cope with abnormality
	Unit does not operate and	(1)	Outdoor unit power was not turned on.	(a) Check voltage between remote controller terminals.
	display stays off even after	(2)	Transmission or remote controller cable	(i)	Remote controller fails when voltage is 17 to 30 V.
	pressing remote controller		was shorted or connection failure.	(ii) If there is no voltage
	ON switch.	(3)	Power cable contact failure	•	Check the number of remote controllers and indoor units con-
1	(Current-carrying indicator	(4)	Remote controller was erroneously con-		nected
	does not light up)		nected to unit remote controller termi-	•	Remove wire from transmission cable terminal block (TB3) on
			nal block.		outdoor unit, and check voltage between terminals.
		(5)	Too many remote controllers or indoor		• If voltage is 17 to 30 V, check (2) and (4) at left.
			units were connected.		• If there is no voltage, check (1) and (3) at left.
	“HO” indicator does not dis-	(1)	No transmission cable was connected	• Check all items at left.
	appear. Unit does not oper-		to transmission cable terminal block on
	ate even if the switch is		the indoor unit.
2	pressed.	(2)	Outdoor unit address was erroneously
			set
		(3)	Indoor unit address was erroneously
			set.
	Display comes on once but	(1)	Indoor unit power was not turned on.	• Check item at left.
3	disappears immediately after
	a press of the switch.

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Contents PUHY-YMC Contents Before installation and electric work Safety precautionsBefore getting installed 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 unitCollective installation and continu- ous installation Lifting method and weight of productBe very careful to carry product 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-200/250YMCAreas of caution Refrigerant piping installationNever perform a pump down. This will damage the compressor + 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 belowAirtight test Airtight test and evacuationEvacuation Thermal insulation of refrigerant piping No heat insulation must be provided for electric wiresInner wall concealed Floor fireproofing PenetrationsElectrical work Variable capacity unit Control box and connecting posi- tion of wiringConstant 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 Booster RP WiringCapability Number of connected indoor units that can be 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