Midea MSV1-07CR-QB8F User manual

MSV1-07CR-QB8FMSV1-07HR-QB8F
MSV1-09CR-QB8FMSV1-09HR-QB8F
MSV1-12CR-QB8FMSV1-12HR-QB8F
MSV1-18CR-QB8FMSV1-18HR-QB8F
MSV1-07CR-NC2FMSV1-07HR-NC2F
MSV1-09CR-NC2FMSV1-09HR-NC2F
MSV1-12CR-NC2FMSV1-12HR-NC2F
MSV1-18CR-QB8FMSV1-18HR-QB8F

Content
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Content
1Precaution............................................................................................................................1
1.1SafetyPrecaution......................................................................................................................................1
1.2Warning.....................................................................................................................................................1
2Function...............................................................................................................................4
3Dimension............................................................................................................................5
4Specification........................................................................................................................6
5Refrigerantcyclediagram................................................................................................10
6Operationlimits.................................................................................................................11
7Wiringdiagram..................................................................................................................12
8Installationdetails.............................................................................................................16
8.1Wrenchtorque sheet forinstallation........................................................................................................16
8.2Connectingthe cables.............................................................................................................................16
8.3Pipelengthand the elevation..................................................................................................................16
8.4Airpurgingofthe pipingand indoorunit.................................................................................................17
8.5Pumpingdown(Re-installation)..............................................................................................................18
8.6Re-airpurging(Re-installation)...............................................................................................................19
8.7Balancerefrigerant ofthe 2-way, 3-wayvalves......................................................................................20
8.8Evacuation...............................................................................................................................................21
8.9Gascharging...........................................................................................................................................22
9Electronicfunction............................................................................................................23
9.1Electroniccontrolworkingenvironment..................................................................................................23
9.2Propersymbolsand theirmeaning.........................................................................................................23
9.3Function...................................................................................................................................................24
9.4Protection................................................................................................................................................24
9.5Fan onlymode.........................................................................................................................................25
9.6Coolingmode..........................................................................................................................................25
9.7Dehumidifyingmode................................................................................................................................26
9.8Heatingmode..........................................................................................................................................26
9.9Defrostingmode(availableforheatingmode).........................................................................................27
9.10 Automode.............................................................................................................................................28
9.11Forcecoolingfunction...........................................................................................................................28
9.12 Sleepmode...........................................................................................................................................28
9.13 Autorestart function..............................................................................................................................29
9.14 Ionizer(airclean)function.....................................................................................................................29
9.15 Followmefunction................................................................................................................................30
9.16 Self-clean function.................................................................................................................................30
9.17 Turbo.....................................................................................................................................................30
10 Model andParameters......................................................................................................32
11Troubleshooting.................................................................................................................34
11.1LCD Displayboard................................................................................................................................34
11.2IndoorUnit ErrorDisplay.......................................................................................................................35
11.3Diagnosticchart.....................................................................................................................................36

Content
-2-
11.4Resettingphenomenon often occursduringoperation.........................................................................37
11.5IndoorUnit ErrorDisplay E3...............................................................................................................37
11.6IndoorUnit ErrorDisplay E5orE6.....................................................................................................38
11.7IndoorUnit ErrorDisplay E4...............................................................................................................38
11.8IndoorUnit ErrorDisplay E1...............................................................................................................38
11.9IndoorUnit ErrorDisplay E2...............................................................................................................38
12 haracteristicoftemperaturesensor................................................................................39

Servicemanual
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1Precaution
1.1SafetyPrecaution
§Topreventinjurytotheuserorotherpeopleandpropertydamage,thefollowinginstructions
mustbefollowed.
§Incorrectoperation duetoignoring instruction will causeharmordamage.
§Beforeservice unit, besuretoreadthisservicemanual atfirst.
1.2Warning
ØInstallation
§Donotuse adefectiveorunderratedcircuitbreaker.Use thisappliance on adedicated
circuit.
Thereisrisk offireorelectricshock.
§Forelectricalwork,contactthedealer,seller,aqualifiedelectrician,oranAuthorizedservice
center.
Donot disassembleorrepairtheproduct,thereisriskoffireorelectricshock.
§Always ground theproduct.
Thereisrisk offireorelectricshock.
§Install thepanel and thecoverofcontrol boxsecurely.
Thereisrisk offireofelectricshock.
§Always install adedicatedcircuitand breaker.
Improperwiringorinstallation maycauseforeorelectricshock.
§Use thecorrectlyratedbreakeroffuse.
Thereisrisk offireorelectricshock.
§Donotmodifyorextend thepowercable.
Thereisrisk offireorelectricshock.
§Donotinstall, remove, orreinstall theunitbyyourself(customer).
Thereisrisk offire,electricshock,explosion,orinjury.
§Becaution whenunpacking and installing theproduct.
Sharpedgescouldcauseinjury,beespeciallycarefulofthecaseedgesand thefinson thecondenserand
evaporator.
§Forinstallation, always contactthedealeroranAuthorizedservice center.
Thereisrisk offire,electricshock,explosion,orinjury.
§Donotinstall theproducton adefectiveinstallation stand.
It maycauseinjury,accident,ordamagetotheproduct.
§Besuretheinstallation area doesnotdeterioratewithage.
Ifthebasecollapses,theairconditionercouldfallwithit,causingpropertydamage,productfailure,andpersonal
injury.
§Donotlettheairconditionerrunforalong timewhenthehumidityisveryhigh and adooror
windowsisleft open.
Moisturemaycondenseandwet ordamagefurniture.
§Take caretoensurethatpowercablecouldnotbepulledoutordamagedduring operation.
Thereisrisk offireorelectricshock.

Servicemanual
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§Donotplace anything on thepowercable.
Thereisrisk offireorelectricshock.
§Donotplug orunplug thepowersupplyplug during operation.
Thereisrisk offireorelectricshock.
§Donottouch(operation)theproductwithwethands.
Thereisrisk offireorelectricshock.
§Donotplace aheaterorotherappliance nearthepowercable.
Thereisrisk offireand electricshock.
§Donotallowwatertorunintoelectricparts.
It maycausefire,failureoftheproduct,orelectricshock.
§Donotstoreoruse flammablegas orcombustibleneartheproduct.
Thereisrisk offireorfailureof product.
§Donotuse theproductinatightlyclosedspace foralong time.
Oxygendeficiency couldoccur.
§Whenflammablegas leaks, turnoff thegas and openawindowforventilation beforeturnthe
producton.
Donot usethetelephoneorturnswitcheson oroff.
Thereisrisk ofexplosionorfire.
§Ifstrangesounds, orsmall orsmoke comes fromproduct. Turnthebreakeroff ordisconnect
thepower supply cable.
Thereisrisk ofelectricshockorfire.
§Stop operationandclose thewindowinstormorhurricane.Ifpossible,removetheproduct
fromthewindowbeforethehurricanearrives.
Thereisrisk ofpropertydamage,failureof product, orelectricshock.
§Donotopentheinletgrill oftheproductduringoperation.(Donottouchtheelectrostatic
filter, iftheunitissoequipped.
Thereisrisk ofphysicalinjury, electricshock, orproduct failure.
§Whentheproductissoaked(floodedorsubmerged), contactanAuthorizedservice center.
Thereisrisk offireorelectricshock.
§Becaution thatwatercouldnotentertheproduct.
Thereisrisk offire,electricshock,orproductdamage.
§Ventilatetheproductfromtimetotimewhenoperating ittogetherwithastove, etc.
Thereisrisk offireorelectricshock.
§Turnthemainpoweroff whencleaning ormaintaining theproduct.
Thereisrisk ofelectricshock.
§Whentheproductisnotbeusedforalong time, disconnectthepowersupplyplug orturnoff
thebreaker.
Thereisrisk ofproduct damageorfailure,orunintendedoperation.
§Take caretoensurethatnobodycouldstepon orfall ontotheoutdoorunit.
Thiscouldresultinpersonalinjuryandproduct damage.
ØCAUTION
§Always check forgas (refrigerant) leakageafterinstallation orrepairofproduct.
Lowrefrigerantlevelsmaycausefailureof product.
§Install thedrainhose toensurethatwaterisdrainedaway properly.
Abadconnectionmaycausewaterleakage.
§Keeplevel evenwheninstalling theproduct.
Toavoidvibrationof waterleakage.
§Donotinstall theproductwherethenoise orhotairfromtheoutdoorunitcoulddamagethe
neighborhoods.
It maycauseaproblemforyourneighbors.

Servicemanual
-3-
§Use twoormorepeopletoliftand transporttheproduct.
Avoidpersonalinjury.
§Donotinstall theproductwhereitwill beexposedtosea wind (saltspray)directly.
Itmaycausecorrosionontheproduct.Corrosion,particularlyon thecondenserandevaporatorfins,couldcause
product malfunction orinefficientoperation.
ØOperational
§Donotexpose theskindirectlytocool airforlong periodsoftime. (Donotsitinthedraft).
Thiscouldharmtoyourhealth.
§Donotuse theproductforspecial purposes, suchas preserving foods, works ofart, etc. Itis
aconsumerairconditioner, notaprecision refrigerantsystem.
Thereisrisk ofdamageorlossof property.
§Donotblock theinletoroutletofairflow.
It maycauseproductfailure.
§Use asoftclothtoclean. Donotuse harshdetergents, solvents, etc.
Thereisrisk offire,electricshock,ordamagetotheplasticpartsof theproduct.
§Donottouchthemetal partsoftheproductwhenremoving theairfilter. They areverysharp.
Thereisrisk ofpersonalinjury.
§Donotstepon prputanything on theproduct. (outdoorunits)
Thereisrisk ofpersonalinjuryand failureof product.
§Always insertthefiltersecurely. Cleanthefiltereverytwoweeks ormoreoftenifnecessary.
Adirtyfilterreducestheefficiencyof theairconditionerandcouldcauseproduct malfunctionordamage.
§Donotinserthandsorotherobjectthroughairinletoroutletwhiletheproductisoperated.
Therearesharpandmovingpartsthatcouldcausepersonalinjury.
§Donotdrinkthewaterdrainedfromtheproduct.
Itisnotsanitarycouldcauseserioushealthissues.
§Use afirmstool orladderwhencleaning ormaintaining theproduct.
Becarefulandavoidpersonalinjury.
§Replace theallbatteries intheremotecontrolwithnewones ofthesametype.Donotmixold
and mewbatteries ordifferenttypes ofbatteries.
Thereisrisk offireorexplosion.
§Donotrechargeordisassemblethebatteries. Donotdispose ofbatteries inafire.
Theymayburnofexplode.
§Iftheliquidfromthebatteries getsontoyourskinorclothes,washitwell withcleanwater.Do
notuse theremoteofthebatteries haveleaked.
Thechemicalinbatteriescouldcauseburnsorotherhealthhazards.

Servicemanual
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2Function
ØIndoorunit
1.Operation ON/OFF byremotecontroller
2.Sensing byroomtemperature
Roomtemperaturesensor.Pipetemperature
sensor.
3.Roomtemperaturecontrol
Maintaintheroomtemperatureinaccordancewith
thesettingtemperature.
4.Starting temperaturecontrol
Indoorfanisdelayedfor5secatthestarting.
5.TimeDelay Safetycontrol
Restartingisforapprox. 3minutes.
6.Indoorfanspeedcontrol
High, med,low.
7.Operation indication LCD
Light upintheLCDforeachoperationmode.
8.Two-direction airvane
Theunitwill decidethelouverdirectionaccording
tooperationmode.
9.Sleepmodeautocontrol
Thefan isturntolowspeed(cooling/heating).
Theunit will beturnoff aftersevenhours.
10.Independentdehumidification
Thefunction isusuallyusedinrainydaysin
springtimeordampareas
11.Self-diag. function
Thefunction will beoperateinanyoperationmode.
12.AirflowDirection control
Thelouvercanbesetatthedesired positionor
swingupanddownautomatically
13.Automode
Theunit can bechangebytheroomtemperature.
14.Anti-coldfunction
Prevent thecoldwindatthebeginningof unitstart.
15.Temp. Compensation
16.Defrostmode
17.Auto-restartfunction
18.Flexiblewiring connection
19.Self-Clean
20.Ionizer
Thefunctionisoperatedbyremotecontroller.
21 Followme.
Thefunction isoperatedbyremotecontroller.
22.Self-clean
Function usedaftertheShutDownof cooling
operation toclean theEvaporatorand keepitasfresh
forthenextoperation.Thefunction isoperatedby
remotecontroller..
23 Turbo
Thisfunction enablestheunittoreachthepreset
temperatureintheshortesttimeundercoolingmode
ØOutdoorunit
1.Powerrelay control
Theunithas3minsdelaybetweencontinuously
ON/OFFoperations.
2.Lownoise airflowsystem
Birdtailpropellerfan makestheoutdoorunitrun
morequietly
3.Hydrophilicaluminumfin
Thehydrophilicfincanimprovetheheating
efficiency at operationmode.
4.4way valvecontrol
Itisonlyoperatedintheheatingoperationmode
except defrostingoperation.
5.Anti-rustcabinet
Madefromelectrolyticzincsteelsheet andanti-rust
coatedcomponents.
6.Valveprotection cover
It protectsthevalvesand preventswaterfrom
dripping.
7.Dischargepipetemperature

Servicemanual
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3Dimension
Indoorunit
Dimension
Mode
W H D
7K 795 270 165
9K 795 270 165
12K 845 286 165
18K
995
292
194
outdoorunit
Dimension
Mode W H D L1 L2
7K 700 535 285 458 250
9K(50Hz) 700 535 285 458 250
9K(60Hz) 780 540 250 549 266
12K 780 540 250
549
266
18K 845 695 335 560 360

Servicemanual
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4Specification
MSV1-07CR-QB8F MSV1-07HR-QB8F MSV1-07CR-NC2F MSV1-07HR-NC2F
Ph-V-Hz
1,220-240V~, 50Hz 1,220-240V~,50Hz 1,220-230V~,60Hz 1,220-230V~,60Hz
CapacityBtu/h 7000 7000 7000 7000
Input W 730 730 660 660
Ratedcurrent A 3.3 3.3 3 3
EER Btu/w.h 9.55 9.55 10.9 10.9
CapacityBtu/h —— 8000 —— 8000
Input W —— 780 —— 730
Ratedcurrent A —— 3.5 —— 3.3
COPW/W —— 10.2 —— 10.9
A 5 5 5 5
A14 14 21 21
Model 2P14C225ANA 2P14C225ANA 2R12S3R236A6B 2R12S3R236A6B
Type ROTARY ROTARY ROTARY ROTARY
Brand Matsushita Matsushita Matsushita Matsushita
CapacityBtu/h 7455 7455 7933 7933
Input W 725 725 737 737
Ratedcurrent(RLA) A 3.4 3.4 3.3 3.3
LockedrotorAmp(LRA)A 14 14 21 21
Thermalprotector External External External External
CapacitoruF 25 25 15 15
Refrigerant oilml 270 270 550 550
Model RPG20D RPG20D RPG13B RPG13B
Brand Welling Welling Welling Welling
Input W 32 32 32 32
CapacitoruF 1.2 1.2 1.2 1.2
Speed(hi/mi/lo) r/min 1040/900/800 1040/900/800 1040/900/800 1040/900/800
m3/h 450 450 450 450
dB(A) 36/33/30 36/33/30 36/33/30 36/33/30
Model YDK24-6T YDK24-6T YDK20-6B YDK20-6B
Brand Welling Welling Welling Welling
Input W 56 56 58 58
CapacitoruF 2.5 2.5 2.5 2.5
Speedr/min 800 800 750 750
m
3
/h
1500 1500 1500 1500
dB(A) 50 50 54 54
g530 570 730 730
MPa 2.6 2.6 2.6 2.6
Liquidside/ Gassidemm
Ф
6.35/
Ф
9.53
Ф
6.35/
Ф
9.53
Ф
6.35/
Ф
9.53
Ф
6.35/
Ф
9.53
Max. refrigerantpipe length
m10 10 10 10
Max.differenceinlevel
m 5 5 5 5
℃17-30 17-30 17-30 17-30
℃18-45 -7-45 18-45 -7-45
m
2
10-14 10-14 10-14 10-14
Operationtemp
Ambient temp
Applicationarea
Outdoornoiselevel
Refrigerant typeR22
Design pressure
Refrigerant
piping
Indoorairflow(Hi/Mi/Lo)
Indoornoiselevel(Hi/Mi/Lo)
Outdoor
fanmotor
Outdoorairflow
Max. current
Starting current
Compressor
Indoor
fanmotor
Model
Powersupply
Cooling
Heating
Note:
Thenoise dateisbaseon hemi-anechoicchamber,during actualoperation;thesevaluesare
normallysomewhatdifferentas aresultofambientcondition.
Theabovedesign and specificationsaresubjecttochangewithoutpriornotice forproduct
improvement.