Mitsubishi 864800 User Manual

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En-7

4-6.EXPLANATIONTOTHEUSER

• UsingtheOPERATINGINSTRUCTIONS,explaintotheuserhowtousetheairconditioner(howtousetheremotecontroller,howtoremovetheairlters,howto

removeorputtheremotecontrollerintheremotecontrollerholder,howtoclean,precautionsforoperation,etc.).

• RecommendtheusertoreadtheOPERATINGINSTRUCTIONScarefully.

When relocating or disposing of the air conditioner, pump down the system following the procedure below so that no refrigerant is released into the atmosphere.

1)Turnoffthebreaker.

2)Connectthegaugemanifoldvalvetotheserviceportofthestopvalveonthegaspipesideoftheoutdoorunit.

3)Fullyclosethestopvalveontheliquidpipesideoftheoutdoorunit.

4)Turnonthebreaker.

5) Start the emergency COOL operation on all the indoor units.

6) When the pressure gauge shows

0.1to0psi[Gauge](0.05to0MPa),fullyclosethestopvalveonthegaspipesideoftheoutdoorunitandstoptheoperation.(Refer

to the indoor unit installation manual about the method for stopping the operation.)

* If too much refrigerant has been added to the air conditioner system, the pressure may not drop to

0.1 to 0 psi [Gauge] (0.05 to 0 MPa)

, or the protection function

mayoperateduetothepressureincreaseinthehigh-pressurerefrigerantcircuit.Ifthisoccurs,usearefrigerantcollectingdevicetocollectalloftherefrigerantin

thesystem,andthenrechargethesystemwiththecorrectamountofrefrigerantaftertheindoorandoutdoorunitshavebeenrelocated.

7)Turnoffthebreaker.Removethepressuregaugeandtherefrigerantpiping.

When pumping down the refrigerant, stop the compressor before disconnecting the refrigerant pipes.

The compressor may burst and cause injury if any foreign substance, such as air, enters the pipes.

WARNING

Procedure

Pressthepiping/wiringcorrectionswitch(SW871)1minuteormoreafterturningonthe

power supply.

• Correctioncompletesin10to20minutes.Whenthecorrectioniscompleted,itsresult

is shown by LED indication. Details are described in the following table.

• Tocancelthisfunctionduringitsoperation,pressthepiping/wiringcorrectionswitch

(SW871) again.

• Whenthecorrectioncompletedwithouterror,donotpressthepiping/wiringcorrection

switch (SW871) again.

Whentheresultis“Notcompleted”,pressthepiping/wiringcorrectionswitch(SW871)again

tocancelthisfunction.Then,conrmthewiringandpipingcombinationinaconventional

manner by operating the indoor units one by one.

• Theoperationisdonewhilethepowerissupplied.Makesurenottocontactpartsother

thantheswitch,includingtheP.C.board.Thismaycauseelectricshockorburnbyhot

partsandlivepartsaroundtheswitch.ContactingthelivepartsmaycauseP.C.board

damage.

• TopreventelectroniccontrolP.C.boarddamage,makesuretoperformstaticelimination

before operating this function.

• Thisfunctiondoesnotoperatewhentheoutsidetemperatureis32°F(0°C)orbelow.

LEDindicationduringdetection:

LED1

(Red)

LED2

(Yellow)

LED3

(Green)

Lighted Lighted Once

Resultofpiping/wiringcorrectionfunction

LED1

(Red)

LED2

(Yellow)

LED3

(Green)

Result

Lighted Not lighted Lighted

Completed

(Problem corrected or

normal)

Once Once Once

Not completed

(Detection failed)

Other indications

Referto“SAFETYPRE-

CAUTIONSWHENLED

BLINKS”locatedbehind

theservicepanel.

5. PUMPINGDOWN

4-5.TESTRUN

• Testrunsoftheindoorunitsshouldbeperformedindividually.Seetheinstallationmanualcomingwiththeindoorunit,andmakesurealltheunitsoperateproperly.

• Ifthetestrunwithalltheunitsisperformedatonce,possibleerroneousconnectionsoftherefrigerantpipesandtheindoor/outdoorunitconnectingwirescannotbe

detected. Thus, be sure to perform the test run one by one.

About the restart protective mechanism

Oncethecompressorstops,therestartpreventivedeviceoperatessothecompressorwillnotoperatefor3minutestoprotecttheairconditioner.

Wiring/piping correction function

Thisunithasawiring/pipingcorrectionfunctionwhichcorrectswiringandpipingcombination.Whenthereispossibilityofincorrectwiringandpipingcombination,

andconrmingthecombinationisdifcult,usethisfunctiontodetectandcorrectthecombinationbyfollowingtheproceduresbelow.

Makesurethatthefollowingisdone.

• Powerissuppliedtotheunit.

• Stopvalvesareopen.

Note:

During detection, the operation of the indoor unit is controlled by the outdoor unit. During detection, the indoor unit automatically stops operation. This is not a mal-

function.

WG79A686H01_en.indd 7 11/24/2015 9:04:55 AM

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Mitsubishi 864800 Triple Zone M Series Mini Split System with Cooling 21000 BTU, One 6k BTU Indoor, Two 9k BTU Indoor, PACMKA31BC Branch Box, and an Outdoor Unit

User Manual - Page 8