General Climate CU-S05CR User manual

ClimaticControlCorporationWall-MountedSplitType
Service manual
Roomairconditioner
Split Wall-MountedType
GC/CU-S05CR
GC/CU-S07HR
GC/CU-S09HR
GC/CU-S12HR
GC/CU-S18HR

www.generalclimate.com Wall-MountedSplitType
Content
1. Precaution1
1.1 SafetyPrecaution 1
1.2 Warning1
2. Function3
3. Dimension5
3.1 Indoorunit5
3.2 Outdoorunit6
4. Specification7
5. Refrigerant cyclediagram9
6. Operationlimits10
6.1 Cooling operation10
6.2 Heating operation10
7. Schematicdiagramand Wiring diagram11
7.1 Schematicdiagram11
7.2 Wiring diagram12
8. Installation details15
8.1 Wrenchtorquesheetforinstallation 15
8.2 Connecting thecables15
8.3 Pipelengthand theelevation15
8.4 Airpurging ofthepipingand indoorunit16
8.5 Pumping down(Re-installation)17
8.6 Re-airpurging (Re-installation)18
8.7 Balance refrigerantofthe2-way, 3-way valves19
8.8 Evacuation20
8.9 Gas charging21
9. Capacitytable22
9.1 GC/GU-S05CR22
9.2 GC/GU-S07HR22
9.3 GC/GU-S09HR23
9.4 GC/GU-S12HR23
9.5 GC/GU-S18HR24
10. Electronicfunction 25
10.1 Electroniccontrol working environment25
10.2 Propersymbolsand theirmeaning 25
10.3 Function25
10.4 Protection26
10.5 Fan-onlymode26
10.6 Cooling mode26
10.7 Dehumidifying mode27
10.8 Heating mode28
10.9 Defrosting mode(availableforheating mode)29

www.generalclimate.com Wall-MountedSplitType
10.10 Automode30
10.11Force cooling function 30
10.12 Sleepmode31
10.13 Autorestartfunction31
10.14 Anion (optional)31
11.ModelandParameters33
12. Troubleshooting34
12.1 Display board34
12.2 Troubleshooting34
12.3 Diagnosticchart35
12.4 Resetting phenomenon oftenoccursduring operation.36
12.5 Operation lampflashes and Timerlampoff.36
12.6 Operation lampflashes and Timerlampon.36
12.7 Operation lampoff and Timerlampflashes 37
12.8 Operation lamponand Timerlampflashes 37
12.9 Operation lampflashes, Timerlampflashes .37
13. Characteristicof temperaturesensor38

www.generalclimate.com 1Wall-MountedSplitType
1.Precaution
1.1SafetyPrecaution
nToprevent injurytotheuserorotherpeopleand propertydamage,thefollowinginstructionsmustbefollowed.
nIncorrectoperationduetoignoring instructionwill causeharm ordamage.
nBeforeserviceunit, besuretoread thisservicemanualat first.
1.2Warning
ØInstallation
nDonotuseadefectiveorunderratedcircuitbreaker.Use
thisapplianceon adedicatedcircuit.
Thereisriskoffireorelectricshock.
nForelectricalwork,contactthedealer,seller,aqualified
electrician,oranAuthorizedservicecenter.
Donotdisassembleorrepairtheproduct,thereis
riskoffireorelectricshock.
nAlwaysgroundtheproduct.
Thereisriskoffireorelectricshock.
nInstallthepanelandthecoverofcontrolboxsecurely.
Thereisriskoffireofelectricshock.
nAlwaysinstalladedicatedcircuitand breaker.
Improperwiringorinstallationmaycauseforeor
electricshock.
nUsethecorrectlyratedbreakeroffuse.
Thereisriskoffireorelectricshock.
nDonotmodifyorextend thepowercable.
Thereisriskoffireorelectricshock.
nDonotinstall,remove,orreinstalltheunitbyyourself
(customer).
Thereisriskoffire,electricshock,explosion,or
injury.
nBecaution whenunpackingandinstallingtheproduct.
Sharpedgescouldcauseinjury,beespecially
carefulofthecase edges andthefinsonthe
condenserandevaporator.
nForinstallation,alwayscontactthedealeroran
Authorizedservicecenter.
Thereisriskoffire,electricshock,explosion,or
injury.
nDonotinstalltheproducton adefectiveinstallation
stand.
Itmaycause injury,accident,ordamagetothe
product.
nBesuretheinstallation areadoesnotdeterioratewith
age.
Ifthebasecollapses,theairconditionercouldfall
withit,causingpropertydamage,productfailure,
and personalinjury.
nDonotlettheairconditionerrunforalong timewhenthe
humidityisveryhighandadoororawindowsisleft
open.
Moisturemaycondense and wetordamage
furniture.
nTakecaretoensurethat powercablecouldnotbepulled
outordamagedduring operation.
Thereisriskoffireorelectricshock.
nDonot placeanythingonthepowercable.
Thereisriskoffireorelectricshock.
nDonotplugorunplugthepowersupplyplugduring
operation.
Thereisriskoffireorelectricshock.
nDonottouch(operation)theproduct withwethands.
Thereisriskoffireorelectricshock.
nDonotplaceaheaterorotherappliancenearthepower
cable.
Thereisriskoffireandelectricshock.
nDonot allowwatertorunintoelectricparts.
Itmaycause fire,failureoftheproduct,orelectric
shock.
nDonotstoreoruseflammablegasorcombustiblenear
theproduct.
Thereisriskoffireorfailureofproduct.
nDonotusetheproductinatightlyclosed spacefora
longtime.
Oxygendeficiencycouldoccur.
nWhen flammablegasleaks,turnoff thegasandopena
windowforventilationbeforeturntheproduct on.
Donotusethetelephoneorturnswitcheson oroff.
Thereisriskofexplosion orfire.
nIfstrangesounds,orsmall orsmokecomesfrom
product.Turnthebreakeroffordisconnectthepower
supplycable.
Thereisriskofelectricshock orfire.
nStop operation andclosethewindowinstormor
hurricane.If possible,removetheproductfromthe
windowbeforethehurricanearrives.

www.generalclimate.com 2Wall-MountedSplitType
Thereisrisk ofpropertydamage, failureofproduct,
orelectricshock.
nDonotopentheinlet grilloftheproductduringoperation.
(Donottouchtheelectrostaticfilter,iftheunitisso
equipped.)
Thereisriskofphysicalinjury,electricshock,or
productfailure.
nWhen theproductissoaked (floodedorsubmerged),
contact anAuthorizedservicecenter.
Thereisriskoffireorelectricshock.
nBecaution that watercouldnotentertheproduct.
Thereisriskoffire,electricshock,orproduct
damage.
nVentilatetheproductfromtimetotimewhenoperatingit
togetherwithastove, etc.
Thereisriskoffireorelectricshock.
nTurnthemainpoweroffwhencleaningormaintaining
theproduct.
Thereisriskofelectricshock.
nWhen theproductisnotbeusedforalongtime,
disconnectthepowersupplyplugorturnoff thebreaker.
Thereisrisk ofproductdamageorfailure,or
unintendedoperation.
nTakecaretoensurethatnobodycouldstepon orfall
ontotheoutdoorunit.
Thiscouldresultinpersonalinjuryand product
damage.
ØCAUTION
nAlwayscheck forgas(refrigerant)leakageafter
installationorrepairofproduct.
Lowrefrigerantlevelsmaycausefailureofproduct.
nInstallthedrainhosetoensurethatwaterisdrained
awayproperly.
Abadconnection maycause waterleakage.
nKeeplevelevenwheninstallingtheproduct.
Toavoidvibration ofwaterleakage.
nDonotinstalltheproduct wherethenoiseorhotairfrom
theoutdoorunitcoulddamagetheneighborhoods.
Itmaycause aproblemforyourneighbors.
nUsetwoormorepeopletoliftand transporttheproduct.
Avoidpersonalinjury.
nDonot installtheproduct whereit willbeexposedtosea
wind (salt spray)directly.
Itmaycause corrosionon theproduct.Corrosion,
particularlyon thecondenserandevaporatorfins,
couldcauseproductmalfunction orinefficient
operation.
ØOperational
nDonotexposetheskindirectlytocoolairforlong
periodsof time.(Donotsit inthedraft).
Thiscouldharmtoyourhealth.
nDonotusetheproductforspecialpurposes,suchas
preservingfoods,worksofart, etc.Itisaconsumerair
conditioner,not aprecisionrefrigerant system.
Thereisriskofdamageorloss ofproperty.
nDonot blocktheinletoroutletofairflow.
Itmaycause productfailure.
nUseasoft clothtoclean.Donotuseharshdetergents,
solvents, etc.
Thereisriskoffire,electricshock,ordamagetothe
plasticpartsoftheproduct.
nDonottouchthemetalpartsoftheproductwhen
removing theairfilter.Theyareverysharp.
Thereisriskofpersonalinjury.
nDonotstepon prputanythingon theproduct.(outdoor
units)
Thereisrisk ofpersonalinjuryand failureof
product.
nAlways insertthefiltersecurely.Clean thefilterevery
twoweeks ormoreoftenifnecessary.
Adirtyfilterreducestheefficiencyoftheair
conditionerand couldcauseproductmalfunctionor
damage.
nDonotinserthandsorotherobjectthroughairinletor
outlet whiletheproduct isoperated.
Therearesharpandmovingpartsthatcouldcause
personalinjury.
nDonot drinkthewaterdrainedfromtheproduct.
Itisnotsanitarycouldcauseserioushealthissues.
nUseafirmstoolorladderwhencleaning ormaintaining
theproduct.
Becareful and avoidpersonalinjury.
nReplacetheallbatteriesintheremotecontrolwithnew
onesofthesametype.Donotmixoldandmewbatteries
ordifferenttypesof batteries.
Thereisriskoffireorexplosion.
nDonotrechargeordisassemblethebatteries.Donot
disposeofbatteriesinafire.
Theymayburnofexplode.
nIf theliquidfromthebatteriesgetsontoyourskinor
clothes,washitwellwithclean water.Donotusethe
remoteofthebatterieshaveleaked.
Thechemicalinbatteriescouldcauseburnsor
otherhealthhazards.

www.generalclimate.com 3Wall-MountedSplitType
2. Function
Thefunctionwillbe
operatein anyoperation
mode.
Indoorunit
OperationON/OFF byremotecontroller
Roomtemperaturesensor.
Pipetemperaturesensor.
Sensingbyroomtemperature
Maintain theroomtemperatureinaccordancewiththesetting temperature.
Roomtemperaturecontrol
Indoorfanisdelayedfor5sec atthe
starting.
Startingtemperaturecontrol
Restarting isforapprox.3minutes..
TimeDelaySafetycontrol
High,med,low,breeze.
Indoorfanspeed control
LightupintheLED(LCD)foreachoperationmode.
Theunitwill decidethelouverdirection accordingtooperation mode.
Two-direction airvane
Thefan isturn tolowspeed (cooling/heating).
Theunitwill beturn offaftersevenhours.
Sleepmodeautocontrol
Thefunctionisusuallyusedinrainydaysin
springtimeordampareas.
Independentdehumidification
OperationindicationLamps(LED)
Thelouvercanbesetatthedesiredpositionorswing up
anddown automatically
AirflowDirection control
Theunitcanbechangebytheroomtemperature.
Automode
Easycleanpanel
Flexiblewiring connection
Defrostmode
Temp. Compensation
Preventthecold wind at
thebeginningofunit
start.
Anti-coldfunction
Auto-restart function
Self-diag. function

www.generalclimate.com 4Wall-MountedSplitType
Theunitcanoperateincooling modeatlowambienttemperatureconditions.
Theunithas3minsdelaybetweencontinuouslyON/OFF operations.
Outdoorunit
Powerrelaycontrol
Lowambientkit
Bird tail propellerfanmakestheoutdoorunitrun morequietly.
Lownoiseairflowsystem
Thehydrophilicfin can improvetheheatingefficiencyatoperation mode.
Hydrophilicaluminumfin
Itisonlyoperatedin theheating operation modeexceptdefrosting operation.
Dischargepipetemperatureprotect
Anti-rust cabinet
4wayvalvecontrol
Madefromelectrolyticzincsteelsheetand anti-rustcoatedcomponents.
Itprotectsthevalvesand preventswaterfromdripping.
Valveprotectioncover

www.generalclimate.com 5Wall-MountedSplitType
3.Dimension
3.1Indoorunit
Dimension
Mode WHL
5K750250188
7K750250188
9K750250188
12K750250188
18K906286235

www.generalclimate.com 6Wall-MountedSplitType
3.2Outdoorunit
Dimension
Mode WHDL1L2L3
5K700535235
458
280
540
7K700535235
458
280
540
9K700535235
458
280
540
12K780540250
530
315
590
18K760590285540335615

www.generalclimate.com 7Wall-MountedSplitType
4.Specification
GC/GU-S05CR
GC/GU-S07HR
Ph-V-Hz 1,220-240V~,50Hz1,220-240V~,50Hz
CapacityBtu/h 50007000
InputW560760
RatedcurrentA2,63,6
EERBtu/w.h99,2
CapacityBtu/h ----- 7600
InputW
-----760
RatedcurrentA
-----3,4
COPW/W ----- 10
A3,85
A
1618
Model KH104VFHC 2P14C235ANA
Type Rotary Rotary
Brand SHANGHAISENLIN GD Matsushita
CapacityBtu/h57007500
InputW590725
Ratedcurrent(RLA)A2,73,4
Locked rotorAmp(LRA)A1315
ThermalprotectorBF540-KBMRA98854
CapacitoruF 15 25
Refrigerant oil ml MS-56270 ATOMOSM60270
Model RPG13HRPG13H
BrandWELLINGWELLING
InputW
36,536,5
CapacitoruF 1.2
F/450V1.2 F/450V
Speed(hi/mi/lo)r/min1020/960/ 9001020/960/ 900
m3/h 300/270/240380/350/320
dB(A) 32/30/2832/30/28
Model YDK24-6TYDK24-6T
BrandWELLINGWELLING
InputW
7070
CapacitoruF 33
Speedr/min 850850
m
3
/h
14001400
dB(A)4949
g480620
MPa 2,62,6
Liquidside/Gassidemm
Ф
6.35/
Ф
9.53
Ф
6.35/
Ф
9.53
Max. refrigerantpipe lengthm1010
Max. differenceinlevelm55
℃
17-3017-30
℃18-45-7-45
m
2
8-1210-14
Operation temp
Ambienttemp
Applicationarea
Outdoornoiselevel
RefrigeranttypeR22
Designpressure
Refrigerant
piping
Indoorairflow(Hi/Mi/Lo)
Indoornoise level(Hi/Mi/Lo)
Outdoor
fanmotor
Outdoorairflow
Max.current
Startingcurrent
Compressor
Indoor
fanmotor
Model
Powersupply
Cooling
Heating
Note:
Thenoisedateisbaseon hemi-anechoicchamber,during actualoperation;these values arenormally
somewhatdifferentasaresultofambientcondition.
Theabovedesignandspecificationsaresubjecttochangewithoutpriornotice forproductimprovement.

www.generalclimate.com 8Wall-MountedSplitType
GC/GU-S09HR
GC/GU-S12HR
GC/GU-S18HR
Ph-V-Hz 1, 220-240V~,50Hz1, 220-240V~,50Hz1,220-240V~,50Hz
CapacityBtu/h90001200018000
Input W96012301920
Rated current A4,55,79
EERBtu/w.h9,49,89,4
CapacityBtu/h100001300020000
Input W98012901980
Rated current A4,469,2
COPW/W10,29,810,1
A79,110
A2526 36
Model2P18S225ANKPH225X2C-4FT SHY33MC2-U
TypeRotaryRotary rotary
Brand GDMatsushitaGD Toshiba Hitachi
CapacityBtu/h99201361017620
Input W97013051725
Rated current(RLA)A4,56,18,1
Locked rotorAmp(LRA)A242636
ThermalprotectorExternal
（
MRA98745
）
ExternalInternal
CapacitoruF3035 50
Refrigerant oil mlSUNISO350430 600
Model RPG13H RPG13H RPG25
Brand WELLINGWellingWELLING
Input W
36,5 36,5 53
CapacitoruF 1.2
F/450V 1,2 1.5uF/450V
Speed(hi/mi/lo)r/min1100/1020/95013501180
m3/h 450/420/390 550/500/460 750/710/650
dB(A) 37/34/31 41/ 38/34 41/38/35
Model YDK24-6TYDK24-6YDK25-6H
Brand WELLINGWELLINGWELLING
Input W5572 96
CapacitoruF 2.5
F/450V2.5 F/450V2.5 F/450V
Speed r/min800850 900
m
3
/h
150018002000
dB(A)505254
g650820 1370
MPa 2,6 2,6 2,6
Liquidside/Gasside mm
Ф
6.35/
Ф
9.53
Ф
6.35/
Ф
12.7
Ф
6.35/
Ф
12.7
Max.refrigerant pipe lengthm101015
Max.differenceinlevel m558
℃
17-30 17-30 17-30
℃-7-45-7-45-7-45
m
2
14-2118-2625-35
Operation temp
Ambienttemp
Applicationarea
Outdoornoiselevel
Refrigerant typeR410A
Design pressure
Refrigerant
piping
Indoorairflow(Hi/Mi/Lo)
Indoornoiselevel(Hi/Mi/Lo)
Outdoor
fanmotor
Outdoorairflow
Max.current
Startingcurrent
Compressor
Indoor
fanmotor
Model
Powersupply
Cooling
Heating
Note:
Thenoisedateisbaseon hemi-anechoicchamber,during actualoperation;these values arenormally
somewhatdifferentasaresultofambientcondition.
Theabovedesignandspecificationsaresubjecttochangewithoutpriornotice forproductimprovement.

www.generalclimate.com 9Wall-MountedSplitType
5.Refrigerant cyclediagram
ØCoolingonly
ØHeat pumpmode

www.generalclimate.com 10 Wall-MountedSplitType
6.Operation limits
6.1Coolingoperation
Outdoorunitairtemp. DB
Indoorairtemp. DB
Note:Thechartistheresultfromthecontinuousoperationunderconstantairtemperatureconditions.However,excludes the
initialpull-down stage.
6.2Heatingoperation
Indoorairtemp. DB
Outdoorunitairtemp. DB
Note:Thechartistheresultfromthecontinuousoperationunderconstantairtemperatureconditions.However,excludes the
initialpull-down stage.

www.generalclimate.com 11Wall-MountedSplitType
7.Schematicdiagramand Wiring diagram
7.1Schematicdiagram

www.generalclimate.com 12 Wall-MountedSplitType
7.2Wiringdiagram
7.2.1 Cooling mode
GC/GU-S05CR
12 N︶
COMPRESSOR
CAPACITOR
RED
OUTDOORUNIT
OVERLOAD
RELAY
Y＆ G
COMPRESSOR
S
C
BLUE
R
BLACK
RED
BLACK
INDOORUNIT
FAN
CAPACITOR
RED
Y＆ G
FAN
MOTOR
Y＆ GBLUE
BLACK
RED

www.generalclimate.com 13 Wall-MountedSplitType
7.2.2 GC/GU-S07HR, GC/GU-S09HR, GC/GU-S12HR

www.generalclimate.com 14 Wall-MountedSplitType
MSG-18HR

www.generalclimate.com 15 Wall-MountedSplitType
8.Installationdetails
8.1Wrenchtorquesheetforinstallation
Torque
mminchKg.m
6.351/41.8
9.523/84.2
12.71/25.5
15.885/86.6
19.053/46.6
Outsidediameter
8.2Connectingthecables
Thepowercordofconnectshouldbeselectedaccording tothefollowing specificationssheet.
Unit7K9K12K18K
mm21,01,01,52,5
Grade
8.3Pipelengthandtheelevation
Standard
length
Max.Max.Additional
(m)ElevationElevationrefrigerant
Btu/h
GAS
LIQUID
B
(m)
A
(m)
(g/m)
3/8’’ ( 9.52)
1/4’’ ( 6.35)
5
5
10
30
1/2’’ ( 12.7)
1/4’’ ( 6.35)
5
5
10
30
1
8K
1/2’’ ( 12.7)
1/4’’ ( 6.35)
5
8
15
30
Pipe size
7k~12K
Capacity
Caution:
Capacityisbaseonstandardlength and maximumallowancelengthisbaseofreliability.
Oiltrap should beinstall per5-7meters.
In casethatmore
than5m.

www.generalclimate.com 16 Wall-MountedSplitType
8.4Airpurgingofthepipingandindoorunit
Requiredtools:
Hexagonalwrench;adjustablewrench;torquewrenches,wrench tohold thejointsand gasleakdetector.
Note:
Theairintheindoorunitandin thepipingmustbepurged. Ifairremainsintherefrigeration piping,itwillaffectthecompressor,
reducethecoolingcapacity,andcouldleadtoamalfunction ofunit.
Besure,usingatorquewrench totightentheserviceportcap(afterusingtheserviceport),sothatitpreventsthegasleakage
fromtherefrigeration cycle.
Procedure
1.Recheckthepipingconnections.
2.Open thevalvestemofthe2-wayvalvecounterclockwise
approximately90’, wait10 seconds,andthen setittoclosed
position.
§Besuretouse ahexagonalwrenchto operatethevalve
stem
3.Check forgasleakage.
§Checktheflareconnection forgasleakage
4.Purgetheairfromthesystem.
§Setthe2-wayvalvetotheopenposition and remove the
capfromthe3-wayvalve’sserviceport.
§Using thehexagonalwrench to pressthevalvecorepin,
dischargeforthreesecondsandthenwaitforone
minute.
5.Usetorquewrenchtotightentheserviceportcap toatorque
of 1.8kg.m. (18n.m)
6.Setthe3-wayvalvetotheopened position.
7.Mounted thevalvestemnutstothe2-wayand 3-wayvalves.
8.Check forgasleakage.
§Atthistime,especiallycheck forgasleakagefromthe
2-wayand 3-waystemnuts,and fromtheserviceport.
Caution:
Ifgasleakageisdiscoveredinstep(3)above,takethe
following measures.
Iftheleaksstopwhenthepipingconnectionsaretightened
further,continueworking fromstep (4).
Ifthegasleaksdonotstopwhentheconnectionsare
retightened,repairthelocationoftheleak,dischargeall of
thegas through theservice port,andthenrechargewiththe
specifiedamountofgasfromagascylinder.

www.generalclimate.com 17 Wall-MountedSplitType
8.5Pumpingdown(Re-installation)
Procedure
1.Confirmthat boththe2-wayand 3-wayvalvesaresettotheopenedposition.
§Removethevalvestemcapsandconfirmthatthevalvestemsareintheopenedposition.
§Besuretouseahexagonalwrenchtooperatethevalvestems.
2.Operatetheunit for10to15minutes.
3.Stop operation andwait for3minutes, then connect thechargesettotheserviceportof the3-wayvalve.
§Connectthechargehose with thepushpinto thegas serviceport.
4.Airpurging of thechargehose.
§Openthelow-pressurevalveon thechargesetslightlyto purgeairfromthechargehose.
5.Setthe2-wayvalvetothecloseposition.
6.Operatetheairconditionerat thecooling cycleand stopit whenthegaugeindicates0.1MPa.
7.Immediatelysetthe3-wayvalvetotheclosedposition.
§Dothisquicklysothatthegaugeendsup indicating 0.3to0.5Mpa.
8.Disconnect thechargeset,andamount the2-wayand3-wayvalve’sstemnutsandserviceportcaps.
§Use atorquewrench to tighten theserviceportcap toatorqueof1.8kg.m.
§Besuretocheckforgas leakage.