ICM Controls SC1800L User manual

Manual Changeover
Non-Programmable
Battery
SC1800L/VL
Non-Programmable Electronic Thermostat
Installation, Operation & Application Guide
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• ControlsSingleStageHeatingSystems
• MillivoltandHydronic(waterorsteam)SystemCompatible
• CompatiblewithGasandElectricSystems
• BacklitDisplay
• Mercury-Free,
EnvironmentallySafe
• FreezeProtection
• RemoteSensor
Compatible
Specifications
Electricalrating:
• Millivoltto30VAC/VDC
• DCPower:3.0VDC(2“AA”alkalinebatteriesincluded)
• 1ampmaximumperterminal
• 2ampmaximumtotalload
Temperaturecontrolrange:45°Fto90°FAccuracy:±1°F
BackLight:NotavailableonNandVNmodels
DifferentialRage:1°Fto3°F
Systemcongurations:1-stageheat,gas,oil,electric
Terminations:R,W,G,S1,S2
Package Contents/Tools Required
Packageincludes: SC1800thermostatonbase,thermostatcover,wiringlabels,screwsandwall
anchors,Installation,OperationandApplicationGuide.
Toolsrequiredforinstallation:Drillwith3/16”bit,hammer,screwdriver.
General Description
TheSC1800thermostatisadigital,mercury-free,non-programmable,electronicthermostat.
•Compatiblewithsingle-stageheatingsystems
•Compatibleasamasterthermostatinzonedsystemapplications
•FreezeProtectionFeature:Protectspipesfromfreezing!Iftheroomtemperaturedropsto40°F,
thethermostatautomaticallyturnsontheheat;thethermostatmustbe
intheHeatposition;worksevenifthebatteriesaredead
•SystemCustomization:Choosethreeavailabletemperaturedifferentialsettings
To Remove Existing Thermostat
1. Turnoffpowertotheheatingsystembyremovingthefuseorswitchingofftheappropriatecircuit
breaker.
2. Removecoverofoldthermostat.Thisshouldexposethewires.
3. Labeltheexistingwireswiththeenclosedwirelabelsbeforeremovingwires.
4. Afterlabelingwires,removewiresfromwireterminals.
5. Removeexistingthermostatbasefromwall.
6. Refertothefollowingsectionsforinstructionsonhowtoinstallthisthermostat.
Replacing Wiring Labels
Replacetheoldlabelswiththeenclosed
newlabels. Old New Type
F,G G Fancontrolrelay
H,W,4 W Heatingcontrol
M,4,RH,RS,R RTransformer,hotside
N/A S1,S2 Optionalremotesensor
Note: Mount thermostat about ve feet above the oor. Do not mount the thermostat on an outside
wall, in direct sunlight, behind a door, or in an area affected by a vent or duct.
1. Turnoffpowertotheheatingsystembyremovingthefuseorswitchingofftheappropriatecircuit
breaker.
2. MovetheFanAuto/OnswitchintoAutoposition.
3. Toremovecover,insertandtwistacoinorscrewdriverintheslotsonthesidesofthethermostat.
4. Putthermostatbaseagainstthewallwhereyouplantomountit(Besurewireswillfeedthrough
thewireopeninginthebaseofthethermostat).
5. Marktheplacementofthemountingholes.
6. Setthermostatbaseandcoverawayfromworkingarea.
7. Usinga3/16”drillbit,drillholesintheplacesyouhavemarkedformounting.
8. Useahammertotapsuppliedanchorsinmountingholes.
9. Alignthermostatbasewithmountingholesandfeedthecontrolwiresthroughwireopening.
10.Usesuppliedscrewstomountthermostatbasetowall.
11.Insertstripped,labeledwiresinmatchingwireterminals.See“WiringDiagrams”sectionofthis
manual.
CAUTION! :Besureexposedportionofwiresdoesnottouchotherwires.
12.Tightenscrewsonterminalblock.Gentlytugwiretobesureofproperconnection.Doublecheck
thateachwireisconnectedtotheproperterminal.
13.SettheGAS/ELECjumpertoElectricorGas/Oil
14.Inserttwofresh“AA”alkalinebatteriesintothermostat,orientedinthedirectionshownonthe
batterycompartment.
15.Replacecoveronthermostatbysnappingitinplace.
16.Turnonpowertothesystematthemainservicepanel.
To Install Thermostat
Installing and Changing Batteries
IfyourLCDisblankordisplayingLOBAT,thebatteriesarenotinstalledorneedtobechanged.We
suggestyouchangethebatteriesatleastonceayear,orwhenevertheLOBATwarningdisplays.
Note: After installing new batteries, you have to reset the room temperature setting and the
differential setting.
1.MovetheOff/HeatswitchintotheOffposition.
2.MovetheFanAuto/OnswitchintoAutoposition.
3.Removethecover,andinstallthetwo“AA”alkalinebatteries.Properbatteryinstallationis
important!Makesurethepositiveendsofthebatteriesmatchthepositiveterminalsinthebattery
compartment.
Ifthedisplayison,thebatteriesareinstalledproperly.
Important Safety Information
ELECTRICALSHOCKHAZARD –Turnoffpoweratthemainservicepanelbyremoving
thefuseorswitchingtheappropriatecircuitbreakertotheOFFpositionbefore
removingtheexistingthermostat.
IMPORTANT: Thermostat installation must conform to local and national building and electrical
codes and ordinances.
WARNING! : Alwaysturnoffpoweratthemainpowersupplybeforeinstalling,cleaning,
orremovingthermostat.
• Thisthermostatisfor24VACapplicationsonly;donotuseonvoltagesover30VAC
• Donotshortacrossterminalsofgasvalveorsystemcontroltotestoperation;thiswilldamageyour
thermostatandvoidyourwarranty
• Allwiringmustconformtolocalandnationalelectricalandbuildingcodes
• Usethisthermostatonlyasdescribedinthismanual
Parts Diagram

Setting the Setpoint Temperature
1. PlaceOff/HeatswitchintheHeatposition.
2. Pressthedownorupbuttonasingletimetoseethecurrenttemperaturesetting.
3. Pressthedownorupbuttonuntilthedesiredtemperaturesetpointdisplays.
4. Thenewtemperaturesetpointisautomaticallysavedinmemory.After5seconds,thedisplay
returnstoshowingthecurrentroomtemperature.
Setting the Temperature Differential
Thedefaulttemperaturedifferentialis1°.Whenyourroomtemperaturevariesby1°F,thethermostat
turnsonyoursystem.Ifyounoticeyoursystemturningonandofftoofrequently,increasethe
temperaturedifferential.
1. Resetthethermostatbyremovingbatteriesfor10secondsandthenreinstallthem.
2. Fortherst10secondsofoperation,thetemperaturedifferentialisdisplayed.
3. Pressthedownorupbuttontoselectdesiredsetting.
Starting the Thermostat
1. MovetheFanAuto/OnswitchintotheAutoposition.
2. MovetheOff/HeatswitchintotheHeatposition.
A Quick Test
Donotshortjumperacrossterminalsonthegasvalveoratthesystemcontroltotestinstallation.
Action: SettheOff/HeatswitchtoHeat;pressthe up buttonuntilthesettemperatureis3°Fabovethe
roomtemperature.
Result:Heatingsystemandfanshouldturnon;theremaybeatimedelaydependingonyour
system.
Action: Pressthedownbutton untilthesettemperatureisbelowtheroomtemperature.
Result:Theheatingsystemshouldturnoff;theremaybeafandelay.
Action: SettheFanAuto/OnswitchtoOn.
Result:Theblowerfanshouldturnon.
Action: SettheFanAuto/OnswitchtoAuto.
Result:Theblowerfanshouldturnoff.
Iftheabovetestwassuccessful,youhaveaproperinstallation.
Iftheabovetestwasunsuccessful,doublecheckthatthewiresaresecurelyconnectedandare
connectedtotheproperterminals.Consultthetroubleshootingsectionbelow.
Troubleshooting
Symptom Remedy
Thesystemisnotturningon Checkbatteries;displayisblankwhenbatteriesarenotpresentor
aredead.
LCDisblank,ordisplaying
LOBAT
Replacebatteries,ormakesuretheexistingonesareproperly
installed.
Thermostatisnotproperly
controllingthefan
CheckthattheGASELECjumperpositionmatchesyoursystem
(gasorelectric).
Thermostatturnsonandoff
toofrequently
Adjusttemperaturedifferential
(see“SettingtheTemperatureDifferential).
SC1800L/VL Wiring Diagrams
Heating Only
3-Wire,
SingleTransformer
2-Wire,
SingleTransformerorMillivolt
Zone Valve/Damper Motor System
3-Wire,ZoneValve/DamperMotorSystem
2-Wire,ZoneValve/DamperMotorSystem
Note: Differential temperature may need to be increased for zone/damper
systems.
ONE-YEAR LIMITED WARRANTY
TheSellerwarrantsitsproductsagainstdefectsinmaterialorworkmanshipforaperiodofone(1)year
fromthedateofmanufacture.TheliabilityoftheSellerislimited,atitsoption,torepair,replaceorissuea
non-casecreditforthepurchasepricesofthegoodswhichareprovidedtobedefective.Thewarrantyand
remediessetforthhereindonotapplytoanygoodsorpartsthereofwhichhavebeensubjectedtomisuse
includinganyuseorapplicationinviolationoftheSeller’sinstructions,neglect,tampering,improperstorage,
incorrectinstallationorservicingnotperformedbytheSeller.InordertopermittheSellertoproperly
administerthewarranty,theBuyershall:1)NotifytheSellerpromptlyofanyclaim,submittingdatecode
informationoranyotherpertinentdataasrequestedbytheSeller.2)PermittheSellertoinspectandtest
theproductclaimedtobedefective.ItemsclaimedtobedefectiveandaredeterminedbySellertobenon-
defectivearesubjecttoa$30.00perhourinspectionfee.ThiswarrantyconstitutestheSeller’ssoleliability
hereunderandisinlieuofanyotherwarrantyexpressed,impliedorstatutory.Unlessotherwisestated
inwriting,Sellermakesnowarrantythatthegoodsdepictedordescribedhereinaretforanyparticular
purpose.
LIAF007
PatentNo.424,953
7313WilliamBarryBlvd.,NorthSyracuse,NY13212
(TollFree)800-365-5525(Phone)315-233-5266(Fax)315-233-5276
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