Midea MSG-05CR User manual

MSG-05CR
MSG-07CR;MSG-07HR
MSG-09CR;MSG-09HR
MSG-12CR;MSG-12HR
MSG-16CR;MSG-16HR
MSG-18CR;MSG-18HR
MSG-21CR;MSG-21HR

Content
-1-
Content
1. Precaution....................................................................................................................1
1.1 SafetyPrecaution.........................................................................................................................1
1.2 Warning.........................................................................................................................................1
2. Function........................................................................................................................3
3. Dimension.....................................................................................................................5
3.1 Indoorunit.....................................................................................................................................5
3.2 Outdoorunit..................................................................................................................................6
4. Specification.................................................................................................................7
5. Refrigerantcyclediagram.........................................................................................12
6. Operationlimits..........................................................................................................13
6.1 Coolingoperation........................................................................................................................13
6.2 Heatingoperation.......................................................................................................................13
7. SchematicdiagramandWiringdiagram..................................................................15
7.1 Schematicdiagram.....................................................................................................................15
7.2 Wiringdiagram............................................................................................................................16
8. Installationdetails......................................................................................................21
8.1 Wrenchtorque sheet forinstallation...........................................................................................21
8.2 Connectingthe cables................................................................................................................21
8.3 Pipelengthand the elevation.....................................................................................................21
8.4 Airpurgingofthe pipingand indoorunit....................................................................................22
8.5 Pumpingdown(Re-installation)..................................................................................................23
8.6 Re-airpurging(Re-installation)...................................................................................................24
8.7 Balancerefrigerant ofthe 2-way, 3-wayvalves..........................................................................25
8.8 Evacuation..................................................................................................................................26
8.9 Gascharging..............................................................................................................................27
9. Capacitytable.............................................................................................................28
9.1 MSG-05CR.................................................................................................................................28
9.2 MSG-07CR.................................................................................................................................28
9.3 MSG-07HR.................................................................................................................................28
9.4 MSG-09CR.................................................................................................................................29
9.5 MSG-09HR.................................................................................................................................29
9.6 MSG-12CR.................................................................................................................................30
9.7 MSG-12HR.................................................................................................................................30
9.8 MSG-16CR.................................................................................................................................31
9.9 MSG-16HR.................................................................................................................................31
9.10 MSG-18CR.................................................................................................................................32
9.11 MSG-18HR.................................................................................................................................32
9.12 MSG-21CR.................................................................................................................................33
9.13 MSG-21HR.................................................................................................................................33

Content
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10. Electronicfunction.....................................................................................................34
10.1 Electroniccontrolworkingenvironment......................................................................................34
10.2 Propersymbolsand theirmeaning.............................................................................................34
10.3 Function......................................................................................................................................34
10.4 Protection....................................................................................................................................35
10.5 Fan-onlymode............................................................................................................................35
10.6 Coolingmode..............................................................................................................................35
10.7 Dehumidifyingmode...................................................................................................................36
10.8 Heatingmode.............................................................................................................................37
10.9 Defrostingmode(availableforheatingmode)............................................................................38
10.10 Automode..................................................................................................................................39
10.11 Forcecoolingfunction................................................................................................................40
10.12 Sleepmode.................................................................................................................................40
10.13 Autorestart function....................................................................................................................41
10.14 Anion (optional)...........................................................................................................................41
11. Model andParameters...............................................................................................42
12. Troubleshooting.........................................................................................................43
12.1 Displayboard..............................................................................................................................43
12.2 Troubleshooting..........................................................................................................................44
12.3 Diagnosticchart..........................................................................................................................45
12.4 Resettingphenomenon often occursduringoperation..............................................................46
12.5 Operation lampflashesand Timerlampoff...............................................................................46
12.6 Operation lampflashesand Timerlampon...............................................................................46
12.7 Operation lampoffand Timerlampflashes................................................................................47
12.8 Operation lampon and Timerlampflashes...............................................................................47
12.9 Operation lampflashes,Timerlampflashes.............................................................................47
13. Characteristicoftemperaturesensor......................................................................48

Servicemanual
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1.Precaution
1.1 SafetyPrecaution
nTopreventinjurytotheuserorotherpeopleandpropertydamage,thefollowinginstructionsmustbefollowed.
nIncorrectoperationduetoignoringinstructionwillcauseharmordamage.
nBeforeserviceunit,besuretoreadthisservicemanualatfirst.
1.2 Warning
ØInstallation
nDonotuseadefectiveorunderratedcircuitbreaker.
Use thisappliance onadedicatedcircuit.
Thereisrisk offireorelectricshock.
nForelectrical work,contactthedealer, seller,a
qualifiedelectrician,oranAuthorizedservicecenter.
Donotdisassembleorrepairtheproduct,thereisriskof
fireorelectricshock.
nAlwaysgroundtheproduct.
Thereisrisk offireorelectricshock.
nInstallthepanel and thecoverofcontrolbox
securely.
Thereisrisk offireofelectricshock.
nAlwaysinstall adedicatedcircuitandbreaker.
Improperwiringorinstallation maycauseforeorelectric
shock.
nUse thecorrectlyratedbreakeroffuse.
Thereisrisk offireorelectricshock.
nDonotmodifyorextend thepowercable.
Thereisrisk offireorelectricshock.
nDonotinstall,remove,orreinstalltheunitby
yourself(customer).
Thereisrisk offire,electricshock,explosion,orinjury.
nBecautionwhenunpackingandinstallingthe
product.
Sharpedgescouldcauseinjury,beespeciallycarefulof
thecaseedgesand thefinsonthecondenserand
evaporator.
nForinstallation,alwayscontactthedealeroran
Authorizedservicecenter.
Thereisrisk offire,electricshock,explosion,orinjury.
nDonotinstalltheproducton adefectiveinstallation
stand.
It maycauseinjury,accident,ordamagetotheproduct.
nBesuretheinstallationareadoesnotdeteriorate
withage.
If thebasecollapses,theairconditionercouldfallwithit,
causing propertydamage, productfailure,andpersonal
injury.
nDonotlettheairconditionerrun foralong time
whenthehumidityisveryhighandadoorora
windowsisleft open.
Moisturemaycondenseandwet ordamagefurniture.
nTake caretoensurethatpowercablecouldnotbe
pulledoutordamagedduringoperation.
Thereisrisk offireorelectricshock.
nDonotplaceanythingonthepowercable.
Thereisrisk offireorelectricshock.
nDonotplug orunplugthepowersupplyplugduring
operation.
Thereisrisk offireorelectricshock.
nDonottouch(operation)theproductwithwethands.
Thereisrisk offireorelectricshock.
nDonotplaceaheaterorotherappliancenearthe
powercable.
Thereisrisk offireand electricshock.
nDonotallowwatertorunintoelectricparts.
Itmaycausefire,failureoftheproduct, orelectricshock.
nDonotstoreoruseflammablegasorcombustible
neartheproduct.
Thereisrisk offireorfailureof product.
nDonotuse theproductinatightlyclosedspacefora
long time.
Oxygendeficiency couldoccur.
nWhenflammablegasleaks,turnoffthegasand
openawindowforventilationbeforeturnthe
producton.
Donot usethetelephoneorturnswitcheson oroff.
Thereisrisk ofexplosionorfire.
nIfstrangesounds,orsmallorsmoke comesfrom
product.Turnthebreakeroffordisconnectthe
powersupplycable.
Thereisrisk ofelectricshockorfire.
nStop operationandclose thewindowinstormor
hurricane.Ifpossible,remove theproductfromthe
windowbeforethehurricanearrives.
Thereisrisk ofpropertydamage,failureof product, or
electricshock.
nDonotopentheinletgrill oftheproductduring
operation.(Donottouchtheelectrostaticfilter,ifthe

Servicemanual
-2-
unitissoequipped.)
Thereisrisk ofphysicalinjury, electricshock, orproduct
failure.
nWhentheproductissoaked(floodedorsubmerged),
contactanAuthorizedservicecenter.
Thereisrisk offireorelectricshock.
nBecautionthatwatercouldnotentertheproduct.
Thereisrisk offire,electricshock,orproductdamage.
nVentilatetheproductfromtimetotimewhen
operatingittogetherwithastove,etc.
Thereisrisk offireorelectricshock.
nTurnthemainpoweroffwhencleaningor
maintaining theproduct.
Thereisrisk ofelectricshock.
nWhentheproductisnotbeusedforalong time,
disconnectthepowersupplyplug orturnoffthe
breaker.
Thereisriskofproductdamageorfailure,orunintended
operation.
nTake caretoensurethatnobodycouldsteponorfall
ontotheoutdoorunit.
Thiscouldresultinpersonalinjuryandproductdamage.
ØCAUTION
nAlwayscheckforgas(refrigerant)leakageafter
installationorrepairofproduct.
Lowrefrigerantlevelsmaycausefailureof product.
nInstallthedrainhosetoensurethatwaterisdrained
awayproperly.
Abadconnectionmaycausewaterleakage.
nKeeplevel evenwheninstallingtheproduct.
Toavoidvibrationof waterleakage.
nDonotinstalltheproductwherethenoiseorhotair
fromtheoutdoorunitcoulddamagethe
neighborhoods.
It maycauseaproblemforyourneighbors.
nUse twoormorepeopletoliftandtransportthe
product.
Avoidpersonalinjury.
nDonotinstalltheproductwhereitwill beexposedto
sea wind (saltspray)directly.
It maycausecorrosion on theproduct.Corrosion,
particularlyonthecondenserandevaporatorfins,could
causeproduct malfunctionorinefficient operation.
ØOperational
nDonotexpose theskindirectlytocoolairforlong
periodsoftime.(Donotsitinthedraft).
Thiscouldharmtoyourhealth.
nDonotusetheproductforspecial purposes,such
as preservingfoods,worksofart,etc.Itisa
consumerairconditioner, notaprecisionrefrigerant
system.
Thereisrisk ofdamageorlossof property.
nDonotblocktheinletoroutletofairflow.
It maycauseproductfailure.
nUse asoftclothtoclean.Donotuseharsh
detergents,solvents,etc.
Thereisrisk offire,electricshock,ordamagetothe
plasticpartsoftheproduct.
nDonottouchthemetalpartsoftheproductwhen
removingtheairfilter.Theyareverysharp.
Thereisrisk ofpersonalinjury.
nDonotsteponprputanythingontheproduct.
(outdoorunits)
Thereisrisk ofpersonalinjuryand failureof product.
nAlwaysinsertthefiltersecurely. Cleanthefilter
everytwoweeksormoreoftenifnecessary.
Adirtyfilterreducestheefficiencyof theairconditioner
and couldcauseproduct malfunctionordamage.
nDonotinserthandsorotherobjectthroughairinlet
oroutletwhiletheproductisoperated.
Therearesharpandmovingpartsthatcouldcause
personalinjury.
nDonotdrinkthewaterdrainedfromtheproduct.
Itisnotsanitarycouldcauseserioushealthissues.
nUse afirmstool orladderwhencleaningor
maintaining theproduct.
Becarefulandavoidpersonalinjury.
nReplacetheallbatteries intheremotecontrolwith
newonesofthesametype.Donotmixoldand mew
batteries ordifferenttypesofbatteries.
Thereisrisk offireorexplosion.
nDonotrechargeordisassemblethebatteries. Donot
disposeofbatteries inafire.
Theymayburnofexplode.
nIftheliquidfromthebatteriesgetsontoyourskinor
clothes,washitwell withcleanwater.Donotusethe
remoteofthebatteries haveleaked.
Thechemicalinbatteriescouldcauseburnsorother
healthhazards.

Servicemanual
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2.Function
The functionwill be
operatein anyoperation
mode.
Indoorunit
Operation ON/OFF byremotecontroller
Roomtemperaturesensor.
Pipetemperaturesensor.
Sensing byroomtemperature
Maintaintheroomtemperatureinaccordancewiththesettingtemperature.
Roomtemperaturecontrol
Indoorfanisdelayedfor5secat thestarting.
Starting temperaturecontrol
Restartingisforapprox.3minutes..
TimeDelay Safetycontrol
High,med,low,breeze.
Indoorfanspeedcontrol
LightupintheLED(LCD)foreachoperationmode.
The unit will decidethelouverdirectionaccording tooperationmode.
Two-directionairvane
The fan isturntolowspeed(cooling/heating).
The unit will beturnoff aftersevenhours.
Sleepmodeautocontrol
The functionisusuallyusedinrainydaysin
springtimeordampareas.
Independentdehumidification
Operation indication Lamps(LED)
The louvercanbesetat thedesired position orswing upand
downautomatically
AirflowDirection control
The unitcanbechangebytheroomtemperature.
Automode
Easy cleanpanel
Flexiblewiring connection
Defrostmode
Temp. Compensation
Prevent thecoldwindat
thebeginning of unit start.
Anti-coldfunction
Auto-restartfunction
Self-diag. function

Servicemanual
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The unitcanoperateincoolingmodeatlowambient temperatureconditions.
The unithas3minsdelaybetween continuouslyON/OFFoperations.
Outdoorunit
Powerrelay control
Lowambientkit
Birdtailpropellerfanmakestheoutdoorunit runmorequietly.
Lownoise airflowsystem
The hydrophilicfincanimprovetheheatingefficiencyatoperationmode.
Hydrophilicaluminumfin
It isonlyoperated intheheatingoperation modeexceptdefrostingoperation.
Dischargepipetemperatureprotect
Anti-rustcabinet
4way valvecontrol
Madefromelectrolyticzincsteel sheetandanti-rust coated components.
It protectsthevalvesandpreventswaterfromdripping.
Valveprotection
cover

Servicemanual
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3.Dimension
3.1Indoorunit
Dimension
Mode W H L
5K 750 250 188
7K 750 250 188
9K 750 250 188
12K 750 250 188
16K 906 286 235
18K 906 286 235
21K 906 286 235

Servicemanual
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3.2Outdoorunit
Dimension
Mode W H D L1 L2 L3
5K 700 535 235
458
280
540
7K 700 535 235
458
280
540
9K 700 535 235
458
280
540
12K 780 540 250
530
315
590
16K 780 540 250
530
315
590
18K 760 590 285 540 335 615
21K 845 695 335
560
360
735