Kaysun KCT-03 SR Installation instructions

Thank you for purchasing the remote controller.
This manual describes the safety precaution requirement of using this product.
Wired Controller
KCT-03 SR
INSTALLATION AND OWNER’S MANUAL

● Readthismanualcarefullyandbesureyouunderstandtheinformationbeforeattemptingtousethecontroller.
● Keepthismanualwhereitisreadilyaccessibleafterreadingitthrough.
● Ifanotheruseroperatesthecontrollerinthefuture,besuretohandoverthismanualtothenewuser.

Contents
Installation...............................................................................................................................1
1. Safety Precautions ...............................................................................................................1
2. Accessories ..........................................................................................................................3
3. Installation Procedure...........................................................................................................4
Operation.................................................................................................................................8
1. Safety Precautions ...............................................................................................................8
2. Parts of the Wired Controller .............................................................................................. 9
3. Icons in the Display ............................................................................................................ 10
4. Operation Guide ................................................................................................................. 10
Field Setting.......................................................................................................................... 16
1. Restore Factory Default...................................................................................................... 16
2. Query and Set the Indoor Unit Address.............................................................................. 16
3. Commissioning Parameter Settings ................................................................................... 17
4. Query Operations ............................................................................................................... 21
5. Error Display....................................................................................................................... 24
Troubleshooting ................................................................................................................... 27

1
Installation
1. Safety Precautions
PleasereadtheseSafetyPrecautionscarefullybeforeinstallingthewiredcontroller.
Thismanualclassiestheprecautionsinto WARNINGandCAUTION.Theybothcontainimportant information
regardingsafety.Besuretofollowalltheprecautionsbelow.
Identier Meaning
Warning Failuretofollowtheseinstructionsproperlymayresultinpersonalinjury.
Caution Failuretoobservetheseinstructionsproperlymayresultinpropertydamageor
personalinjury,whichmaybeseriousdependingonthecircumstances.
Important Indicates a useful hint or additional information.
Aftercompletingtheinstallation,conductatrialoperationtocheckforfaultsandexplaintothecustomerhowto
operatethecontrollerwiththeaidoftheoperationmanual.Askthecustomertostoretheinstallationmanualalong
withtheoperationmanualforfuturereference.
Warning
● Askyourdealerorqualiedpersonneltocarryoutinstallationwork.
Donotattempttoinstallthewiredcontrolleryourself.Improperinstallationmayresultinleakage,electricshocksor
re.
● Consultyourlocaldealerregardingrelocationandreinstallationofthewiredcontroller.
Improperinstallationworkmayresultinleakage,electricshocksorrehazards.
● Installthewiredcontrollerinaccordancewiththeinstructionsinthismanual.
Improperinstallationmayresultinwaterleakage,electricshocksorre.
● Besuretouseonlythespeciedaccessoriesandpartsforinstallationwork.
Failuretousethespeciedpartsmayresultintheunitfallingdown,waterleakage,electricshocksorre.

2
● Installthewiredcontrolleronafoundationstrongenoughtowithstandtheweightofthewiredcontroller.
Insufcientstrengthmayresultinthewiredcontrollerfallingdownandcausinginjury.
● Electricalwork mustbeperformed inaccordancewiththe relevantlocaland nationalregulationsandwith the
instructions in this manual.
Besuretouseadedicatedpowersupplycircuitonly.Insufcientpowercircuitcapacityandimproperworkmanship
mayresultinelectricshocksorre.
● Alwaysperforminstallationworkwiththepowerturnedoff.
pressing electric parts may result in electric shock.
● Donotdisassemble,reconstructorrepair.
Thismayresultinelectricshockand/orre.
● Makesurethatallwiring issecured,thespecified wiresareused andthatthereis nostrainonthe terminal
connectionsorwires.
Improperconnectionsorsecuringofwiresmayresultinabnormalheatbuild-uporre.
● Thechoiceofmaterialsandinstallationsmustcomplywiththeavailablenationalandinternationalstandards.
Caution
● Toavoidleakageandelectricshockduetoentryofwaterorinsects,llthewiringthroughholewithputty.
● Toavoidelectricshocks,donotoperatewithwethands.
● Donotwashthewiredcontrollerwithwater,asthismayresultinelectricshocksorre.
● Whenthe followmefunctionof thewiredcontroller is used,selectthe installation locationwhileconsidering it
should be a place:
1).Wheretheaveragetemperatureintheroomcanbedetected.
2).Whichisnotexposedtodirectsunlight.
3).Which is not near a heat source.
4).Whichisnotaffectedbytheoutsideairorairdraughtdueto,forexample,opening/closingofdoors,theair
outlet of the indoor unit or the like.

3
2. Accessories
Pleasecheckthatyouhaveallthefollowingparts.
Table 2.1
No. Name Schematic Qty. Remarks
1Philipsheadscrew,M4X25mm 2Usedtoinstall thewiredcontrolleron
theelectricalbox
2Plasticsupportbarφ5X16mm 2Usedtoinstall thewiredcontrolleron
theelectricalbox
3Operation and Installation Manual 1 /
Pleasepreparethefollowingpartsonsite.
Table 2.2
No. Name Qty. Remarks
186electricalbox 1Generalspecicationforelectricalbox,whichisembeddedinto
thewall.
22-coreshieldedcopperwires 12*AWG16-AWG20,pre-embeddedintowall.
Longestwiringlengthis200metres.
3Wiring tubes (insulation suite) 1 Pre-embeddedintowall.
4BigPhillipsscrewdriver 1ToinstallthePhilipsscrews.
5Smallslottedscrewdriver 1Todismantlethebottomlidofthewiredcontroller.

4
Warning
• Whenusingthesmallslottedscrewdrivertoopentherearcoverofthewiredcontroller,becarefulnottodamage
the PCB inside.
• DonottouchthePCBofthewiredcontroller.
3-3-2Useacuttingtooltoadjusttheheightofthetwoplasticsupportbars(accessory2)tomatchthestandardlength
ofthescrewpillarsoftheelectricalboxtothewallsurface.Makesurethatthesupportbarsarelevelonthewallwhen
thescrewpillarsoftheelectricalboxaremounted.(seeFigure3.4)
3. Installation Procedure
3-1 Determine Where to Install the Wired Controller
Make sure to refer to "1. Safety Precautions" to determine the location
3-2 Structural Dimensions
Screwdriver rotation direction
Slotted screwdriver
RT1
FOLLOW ME
86mm 20mm
86mm
60mm
41.7mm
Figure 3.1 Figure 3.2
3-3 Rear Cover Installation
3-3-1Inserta smallslotted-headscrewdriver intothebottomslotofthewired controllerandrotate inthedirection
indicatedtoremove therearcover ofthewiredcontroller.Payattentiontothe directionofrotation topreventany
damagetotherearcoverofthewiredcontroller.(seeFigure3.3)
Screwdriver rotation direction
Slotted screwdriver
RT1
FOLLOW ME
86mm 20mm
86mm
60mm
41.7mm
Figure 3.3

5
3-3-4Taketheshieldedwiringthathasbeenpre-embeddedinthewall,andthreaditthroughthewireholeoftherear
cover.UsethePhilipsheadscrews(accessory1)toxtherearcoverofthewiredcontrollertotheelectricalboxvia
thesupportbars.Makesurethattherearcoverisnotdeformedafterbeinginstalled(seeFigure3.6).
To X1/X2 of indoor unit
Cross recessed
head screw Electrical box
Rear cover of
wired controller Figure 3.6
Important
• Therearcovermaybedeformedifthescrewistootight.
3-4 Wiring
Caution
• Preparetheelectricalboxandthe2-coreshieldedcopperwireonsite.
• DonottouchthePCBofthewiredcontroller.
Screw post of electrical box
Fix the support bars in the
direction of the arrow
Use a cutting tool to adjust the lengths of
the two plastic support bars
h
h
Figure 3.4
3-3-3 Oncetheheightsoftheplasticsupportbarsareadjusted,xthebarsontherearcover.(seeFigure3.5)
Screw post of electrical box
Fix the support bars in the
direction of the arrow
Use a cutting tool to adjust the lengths of
the two plastic support bars
h
h
Figure 3.5

6
3-4-2 Communicationwiring
• Thecommunicationbetweentheindoorunitandwiredcontrollerisbi-directionalcommunication.Theparameters
displayedonthewiredcontrollerarerefreshedinrealtimeaccordingtochangesintheparametersoftheindoor
unit.
• X1andX2areterminalstoconnecttheindoorunitandwiredcontroller.ThereisnopolaritybetweenX1andX2.
• Thelongestwiringlengthbetweenthewiredcontrollerandindoorunitis200meters.
One controller to one indoor unit connection method
1-to-1 1-to-1 1-to-1
P/Q/EP/Q/EP/Q/E
P/Q/E
X1/X2
○○○
X1/X2 X1/X2
○○○
One controller to one indoor unit connection method
Figure 3.7
Two controllers to one indoor unit connection method
3-4-1 Wiringspecication
Type 2-coreshieldedcopperwire
Diameter AWG 16-20
Length Maximum200m

7
Not allowed
2-to-1
1-to-1
2-to-1
P/Q/EP/Q/EP/Q/E
P/Q/E
X1/X2
○○○
X1/X2 X1/X2
X1/X2 X1/X2
Twocontrollerstooneindoorunitconnectionmethod
Figure 3.8
• Forthe twocontrollerstooneindoorunitconnectionmethod,twowiredcontrollerscontrolthe sameindoorunit,
whereonecontrollerwillbethe"Main",andtheotherbethe"Secondary". Refer to "Field setting". The default
settingofthewiredcontrollerissettomaincontroller.
• ThismethodisonlyavailablefortwoKCT-03SRwiredcontrollers.
3.5 Install Main Body of Wired Controller
Taketheshieldedwiringthathasbeenpre-embeddedinthewallandpassitthroughthewiringholeoftherearcover
ofthewiredcontroller.Onceconnected,connectthewiringtotheterminalX1/X2(CN2)ofthewiredcontroller,andx
thewiredcontrollertotherearcover.(seeFigure3.9)
Fixthewiredcontrollercorrectlyandrmlytotherearcoversothatthewiredcontrollerwillnotdrop.(seeFigure3.10)
CN2
X1 X2
Figure 3.9 Figure 3.10
Caution
• Duringinstallation,reserveacertainlengthfortheconnectingshieldedwiringtomakeiteasiertoremovethe
wiredcontrollerformaintenance.