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
-1-
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
-1-
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
-2-
§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
-4-
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
-5-
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
-6-
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.

Servicemanual
-7-
MSV-09CR-QB8F MSV-09HR-QB8FMSV-09CR-NC2F MSV-09HR-NC2F
Ph-V-Hz 1, 220-240V~, 50Hz 1, 220-240V~, 50Hz 1, 220-230V~, 60Hz 1, 220-230V~, 60Hz
CapacityBtu/h 9000 9000 9000 9000
InputW 940 940 820 820
RatedcurrentA 4.2 4.2 3.7 3.7
EERBtu/w.h 9.55 9.55 10.9 10.9
CapacityBtu/h ___________ 10000 ___________ 10000
InputW ___________ 980 ___________ 910
RatedcurrentA ___________ 4.4 ___________ 4.1
COPW/W ___________ 10.2 ___________ 10.9
A6.3 6.3 6 6
A19.8 19.8 26 26
Model 2P18S225ANK 2P18S225ANK 2P14S236A1E 2P14S236A1J
Type Rotary Rotary Rotary Rotary
Brand Matsushita Matsushita Matsushita Matsushita
CapacityBtu/h 9912 9912 9161 9195
InputW 970 970 845 850
Ratedcurrent(RLA) A 4.5 4.5 3.8 3.8
LockedrotorAmp(LRA)
A19.8 19.8 26 26
ThermalprotectorExternal External External External
CapacitoruF 30 30 30 30
Refrigerantoilml 350 350 270 350
Model RPG20D RPG20D RPG13B RPG13B
Brand Welling Welling Welling Welling
InputW 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 550 550 550 550
dB(A) 38/35/32 38/35/32 38/35/32 38/35/32
Model YDK24-6T YDK24-6T YDK25-6B YDK24-6FB
Brand Welling Welling Welling Welling
InputW 70 70 82.5 72
CapacitoruF 3 3 2.5 2.5
Speedr/min 850 850 950 830
m
3
/h
1800 1800 1800 1800
dB(A) 52 52 54 54
g580 800 900 1000
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. refrigerant pipe 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
214-21 14-21 14-21 14-21
Operation temp
Ambienttemp
Applicationarea
Outdoornoiselevel
RefrigeranttypeR22
Designpressure
Refrigerant
piping
Indoorairflow(Hi/Mi/Lo)
Indoornoiselevel(Hi/Mi/Lo)
Outdoor
fanmotor
Outdoorairflow
Max.current
Startingcurrent
Compressor
Indoor
fanmotor
Model
Powersupply
Cooling
Heating
Note:
Thenoise dateisbaseon hemi-anechoicchamber,during actualoperation;thesevaluesare
normallysomewhatdifferentas aresultofambientcondition.
Theabovedesign and specificationsaresubjecttochangewithoutpriornotice forproduct
improvement.

Servicemanual
-8-
MSV1-12CR-QB8FMSV1-12HR-QB8FMSV1-12CR-NC2FMSV1-12HR-NC2F
Ph-V-Hz 1, 220-240V~, 50Hz 1, 220-240V~, 50Hz 1, 220-230V~, 60Hz 1, 220-230V~, 60Hz
CapacityBtu/h 12000 12000 12000 12000
InputW 1260 1260 1100 1100
RatedcurrentA 5.6 5.6 4.9 4.9
EERBtu/w.h 9.55 9.55 10.9 10.9
CapacityBtu/h ___________ 13000 ___________ 13000
InputW ___________ 1270 ___________ 1190
RatedcurrentA ___________ 5.7 ___________ 5.3
COPW/W ___________ 10.2 ___________ 10.9
A1.4 1.4 1.4 1.4
A1700 1700 1500 1500
Model PH225X2C-4FT PH225X2C-4FT 2P19S236A1J 2P19S236A1J
Type Rotary Rotary Rotary Rotary
Brand GMCC GMCC Matsushita Matsushita
CapacityBtu/h 13197/13299 13197/13299 12659 12659
InputW 1250/1285 1250/1285 1165 1165
Ratedcurrent(RLA) A 5.7/5.5 5.7/5.5 5.2 5.2
LockedrotorAmp(LRA)
A29.9/33 29.9/33 33 33
ThermalprotectorUP3RE0591-T56 UP3RE0591-T56 External External
CapacitoruF 35 35 30 30
Refrigerantoilml 480 480 350 350
Model RPG20D RPG20D RPG13B RPG13B
Brand Welling Welling Welling Welling
InputW 32 32 32 32
CapacitoruF 1.5 1.5 1.2 1.2
Speed(hi/mi/lo) r/min 1260/1080/900 1260/1080/900 1260/1080/900 1260/1080/900
m3/h 650 650 650 650
dB(A) 42/39/36 42/39/36 42/39/36 42/39/36
Model YDK24-6 YDK24-6 YDK25-6B YDK25-6B
Brand Welling Welling Welling Welling
InputW 70 70 82.5 82.5
CapacitoruF 2.5 2.5 2.5 2.5
Speedr/min 850 850 950 950
m
3
/h
1800 1800 1800 1800
dB(A) 54 54 55 55
g850 900 1020 1050
MPa 2.6 2.6 2.6 2.6
Liquidside/Gassidemm 6.35/φ12.7 6.35/φ12.7 6.35/φ12.7 6.35/φ12.7
Max. refrigerant pipe 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
218-26 18-26 18-26 18-26
Model
Powersupply
Cooling
Heating
Max.current
Startingcurrent
Compressor
Indoor
fanmotor
Indoorairflow(Hi/Mi/Lo)
Indoornoiselevel(Hi/Mi/Lo)
Outdoor
fanmotor
Outdoorairflow
Operation temp
Ambienttemp
Applicationarea
Outdoornoiselevel
RefrigeranttypeR22
Designpressure
Refrigerant
piping
Note:
Thenoise dateisbaseon hemi-anechoicchamber,during actualoperation;thesevaluesare
normallysomewhatdifferentas aresultofambientcondition.
Theabovedesign and specificationsaresubjecttochangewithoutpriornotice forproduct
improvement.

Servicemanual
-9-
MSV1-18CR-QB8FMSV1-18HR-QB8F
Ph-V-Hz 1, 220-240V~,50Hz 1,220-240V~,50Hz
CapacityBtu/h 17000 17000
Input W 1650 1650
RatedcurrentA 7.5 7.5
EERBtu/w.h 9.55 9.55
CapacityBtu/h ___________ 19000
Input W ___________ 1800
RatedcurrentA ___________ 8.2
COPBtu/w.h ___________ 10.24
A 11 11
A 34 34
Model PH310X2CS-4KU3PH310X2CS-4KU3
Type Rotary Rotary
Brand GDToshiba GDToshiba
CapacityBtu/h 18254 18254
Input W 1690 1690
Ratedcurrent(RLA) A 7.85 7.85
LockedrotorAmp(LRA)
A 34 34
ThermalprotectorInternal Internal
CapacitoruF 35UF/370V 35UF/370V
Refrigerantoilml 750 750
Model RPG28D RPG28D
Brand Welling Welling
Input W 55 55
CapacitoruF 1.5 1.5
Speed(hi/mi/lo) r/min 1280/1250/1100/10001280/1250/1100/1000
m3/h 800/700/600 800/700/600
dB(A) 42 42
Model YDK53-6C YDK53-6C
Brand Welling Welling
Input W 125 125
CapacitoruF 3 3
Speedr/min 800 800
m3/h 1900 1900
dB(A) 54 54
gR22/1870 R22/1870
MPa 2.6 2.6
Liquidside/ Gassidemm 6.35/φ12.7 6.35/φ12.7
Max.refrigerantpipelength
m 10 10
Max. differenceinlevel
m 5 5
℃17-30 17-30
℃
18-45 -7-45
Operationtemp
Ambient temp
Outdoornoiselevel
Refrigerant typeR22
Designpressure
Refrigerant
piping
Indoorairflow(Hi/Mi/Lo)
Indoornoiselevel(Hi/Mi/Lo)
Outdoor
fanmotor
Outdoorairflow
Max. current
Startingcurrent
Compressor
Indoor
fanmotor
Model
Powersupply
Cooling
Heating
Note:
Thenoise dateisbaseon hemi-anechoicchamber,during actualoperation;thesevaluesare
normallysomewhatdifferentas aresultofambientcondition.
Theabovedesign and specificationsaresubjecttochangewithoutpriornotice forproduct
improvement.

Servicemanual
-10-
5Refrigerantcyclediagram
ØCoolingonly
ØHeatpumpmode

Servicemanual
-11-
6Operationlimits
Coolingoperation
Outdoorunitairtemp.℃DB
Indoorairtemp. ℃DB
Note:Thechartistheresultfromthecontinuousoperation underconstantairtemperature
conditions. However, excludes theinitial pull-downstage.
Heatingoperation
Indoorairtemp. ℃DB
Outdoorunitairtemp.℃DB
Note:Thechartistheresultfromthecontinuousoperation underconstantairtemperature

Servicemanual
-12-
conditions. However, excludes theinitial pull-downstage.
7Wiring diagram
MSV1-07CR-QB8FMSV1-09CR-QB8FMSV1-12CR-QB8F
MSV1-07CR-NC2FMSV1-09CR-NC2FMSV1-12CR-NC2F
MSV1-18CR-QB8F
Indoorunit:
12345
21 21
21 21
35
1351
1
14
DISPLAY
CN14 CN8 CN4
CN1
CN2
P3
RED
BLUE(ORWHITE)
BLACK
CN9
TRANSFORMER
CN11
POWERSUPPLY
SWINGMOTOR
INDOORUNIT
TOOUTDOORUNIT
12(N) 3 4
BROWN(ORBLACK)
COMPRESSORRELAY CN15
7654321
4
CN12
2
1
CN7 CN3
M M1
M2
ANIONGENERATOR
55 5
Y/G
5-WAYTERMINAL
CURRENTINDUCTOR
321
SWITCHBOARD
3
MAINBOARD
23
23
Y/G(ORGREEN)
(INDOORUNIT)
BOARD
21
21 21
321
321
321
12345 12345
12345
CONTROLTOPAIR
INLETLOUVER
M
AMBIENTSENSOR
EVAPORATORSENSOR
Y/G
INDOORMOTOR
MSV1-07CR-QB8FMSV1-09CR-QB8FMSV1-12CR-QB8F
MSV1-07CR-NC2FMSV1-09CR-NC2FMSV1-12CR-NC2F
outdoorunit:

Servicemanual
-13-
RED
RED
BLUE
M
~
COMPRESSON
C
R
S
BLUE
12(N)
M
~
BLACK
BLACK
COMPRESSON
CAPACITON
FANCAPACITON
FAN
BLACK RED
YELLOW/GREEN
YELLOW/GREEN
OVERLOAD
RELAY
(INTERNAL/
EXTERNAL
DEPENDING
ONMODELS)
RED
MSV1-18CR-QB8F
outdoorunit:

Servicemanual
-14-
MSV1-07HR-QB8FMSV1-09HR-QB8FMSV1-12HR-QB8F
MSV1-07HR-NC2FMSV1-09HR-NC2FMSV1-12HR-NC2F
MSV1-18HR-QB8F
Indoorunit:
12345
2 1 2 1
2 1 2 1
35135
1
1
14
DISPLAY
CN14 CN8 CN4
CN1
CN2
P3
RED
BLUE(ORWHITE)
BLACK
CN9
TRANSFORMER
CN11
INDOORMOTOR
SWINGMOTOR
INDOORUNIT
TOOUTDOORUNIT
12(N) 3 4
BROWN(ORBLACK)
COMPRESSORRELAY CN15
7654321
4
CN12
21
YELLOW
CN3
M M1
M2
ANIONGENERATOR
55 5
Y/G
BLUE
5-WAYTERMINAL
CURRENTINDUCTOR
321
SWITCHBOARD
3
MAINBOARD
23
23
Y/G(ORGREEN)
(INDOORUNIT)
P5
P4
BOARD
21
21
2
1
321
321
321
12345 12345
12345
M
AMBIENTSENSOR
EVAPORATORSENSOR
CONTROLTOPAIR
INLETLOUVER
Y/G
POWERSUPPLY
CN7
MSV1-07HR-QB8FMSV1-09HR-QB8FMSV1-12HR-QB8F
MSV1-07HR-NC2FMSV1-09HR-NC2FMSV1-12HR-NC2F
outdoorunit:

Servicemanual
-15-
12(N) 34
Y&G
BLUE
S
R(M)
RED
CBLACK
COMPRESSOR
OVERLOAD
RELAY
BLACK
BLUE
BLUE
4-WAY
Y&G
RED
COMPRESSOR
CAPACITOR
FAN
MOTOR
BLUE
RED
FANCAPACITOR
BLACK RED
INDOORUNIT
OUTDOORUNIT
MSV1-18HR-QB8F
outdoorunit:

Servicemanual
-16-
8Installation details
8.1Wrenchtorquesheetfor installation
Torque
mm inch Kg.m
φ6.35 1/4 1.8
φ9.52 3/8 4.2
φ12.7 1/2 5.5
φ15.88 5/8 6.6
φ19.05 3/4 6.6
Outsidediameter
8.2Connectingthecables
Thepowercordofconnectshouldbeselectedaccordingtothe following specificationssheet.
Amp 10 15 20
mm
2
1.0 1.5 2.5
Grade
8.3Pipelengthandtheelevation
Standard
length Max. Max. Additional
(m) Elevation Elevation refrigerant
Btu/h
GAS
LIQUID
B
(m)
A
(m)
(g/m)
3/8’’ (φ9.52)
1/4’’(φ6.35)
5
5
10
30
1/2’’ (φ12.7) 1/4’’(φ6.35) 5 5 10 30
1/2’’ (φ12.7)
1/4’’(φ6.35)
5
8
15
30
5/8’’(φ15.88)
1/4’’(φ6.35)
5
10
20
30
5/8’’(φ15.88) 3/8’’(φ9.52) 5 10 20 65
5/8’’(φ15.88)
3/8’’(φ9.52)
5
15
30
65
3/4’’(φ19.05)
3/8’’(φ9.52)
5
15
30
65
Pipe size
7k~12K
16K~28K
30K~36K
Capacity
Caution:
Capacityisbaseon standardlengthand maximumallowance lengthisbase ofreliability.
Oil trapshouldbeinstall per5-7meters.
Incase
thatmore
than5m.