ICM Controls SC2311L General instructions

Specifications
Electrical rating: •24VAC(18-30VAC) 
 •4ampmaximumtotalload
 •1ampmaximumperterminal
Temperature control range: 45°Fto90°F(7°Cto32°C)Accuracy:±1°F(±0.5°C)
System congurations:2-stageheat,1-stagecool,heatpump,gas,oil,electric
Timing: Anti-shortCycle:4minutes
 BacklightOperation:5secondsaftermodechangeorbuttonpress
Terminations:R,C,W1/O/B,Y,W2,E,G
Important Safety Information
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
•Donotuseairconditioningwhentheoutdoortemperatureisbelow50degrees;thiscandamage
yourA/Csystemandcausepersonalinjuries
•Usethisthermostatonlyasdescribedinthismanual
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.
1. Turnoffpowertotheheatingandcoolingsystembyremovingthefuseorswitchingthe
appropriatecircuitbreakeroff.
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sectionforinstructionsonhowtoinstallthisthermostat.
To Remove Existing Thermostat
Package Contents/Tools Required
Package includes: SC2311L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
2 Heat/1 Cool
Manual Changeover
Hardwired
SC2311L
Non-Programmable Electronic Thermostat
Installation, Operation & Application Guide
For more information on our complete range of American-made
products – plus wiring diagrams, troubleshooting tips and more,
visit us at www.icmcontrols.com
• Congurable
• 2-Stage Heat/1-Stage Cool Systems
• Heat Pump Systems
• Backlit Display
• Field Temperature Calibration
• Status Indicator Light
• Relay Outputs
(minimum voltage drop in thermostat)
• Ideally Suited for:
– Residential (New Construction/Replacement)
– Light Commercial
Parts Diagram
Down
button
Up
button
Leftswitch
Resetswitch
RESET
LEFT RIGHT
FP
R C
W
O/B
Y
W2
E
G
Field
programming
pins
Rightswitch
Modeswitch
Fanswitch StatusLed
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.
Note: Mount the thermostat about four 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andcoolingsystembyremovingthefuseorswitchingtheappropriate
circuitbreakeroff.
2. Toremovecover,insertandtwistacoinorscrewdriverintheslotsontopofthethermostat.
3. 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).
4. Marktheplacementofthemountingholes.
5. Setthermostatbaseandcoverawayfromworkingarea.
6. Usinga3/16”drillbit,drillholesintheplacesyouhavemarkedformounting.
7. Useahammertotapsuppliedanchorsinmountingholes.
8. Alignthermostatbasewithmountingholesandfeedthecontrolwiresthroughwireopening.
9. Usesuppliedscrewstomountthermostatbasetowall.
10.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.
11. Gentlytugwiretobesureofproperconnection.Doublecheckthateachwireisconnectedtothe
properterminal.
12.Replacecoveronthermostatbysnappingitinplace.
13.Turnonpowertothesystematthemainservicepanel.
14.Testthermostatoperationasdescribedin“TestingtheThermostat”.
To Install Thermostat
Terminal Designator Descriptions
R –24VAChot
 C –24VACcommon
W1/O/B –Congurable
 W1 –1ststageheatfornon-hpsystems
 O –coolactivereversingvalve
 B – heatactivereversingvalve
 Y – 1ststagecool,1ststageheatforheatpumps
 W2 –2ndstageheatforheatpump,non-heatpump,andemergencyheat
 E – 1ststageheatforEmergencyHeatoperation
 G –Fan
SC2311L Output Chart
1ST Cool 1ST Heat 2ND Heat
Heat/Cool Y,G W1,G* W1,W2,G*
Heat Pump (One Compressor) Y,G,O Y,G,B Y,W2,G,B
Emergency Heat HP N/A E,G E,W2,G
* G not energized when congured as a gas/oil system
TheSC2311Lthermostatiscongurablefordifferentsystems.Thecongurationdirectlyeffectsthe
outputs.
Usetheoutputcharttocorrectlycongureandwirethethermostattoyoursystem.
Second
HeatingControl
First
HeatingControl
Fan
Control
Electric Heat
Single Transformer
Second
HeatingControl
First
HeatingControl
Gas/Oil Heat
Single Transformer
Wiring Diagrams
CoolingControl
Fan
Control
Second
HeatingControl
First
HeatingControl
Fan
Control
CoolingControl
Single TransformerSingle Transformer
Single Compressor
2ndStage
Heat
Reversing
Valve
Compressor
Emergency
Heat
Fan
Control
1. Temperature Scale (F or C)–ChooseFahrenheitorCelsius.
Presstheupordownbuttontoselect.
 Pressthe RIGHT buttontoadvancetothenextscreen.
2. 1st Stage Temperature Differential(1°Fto5°F)(0.5°Cto2.5°C)
Setthenumberofdegreesbetweenyour“setpoint”temperatureandyour“turn
on”temperature.
 Pressthe upordownbuttontosetdifferentialvalue.
 PresstheRIGHTbuttontoadvancetothenextscreen.
Configuration Mode Settings
ThecongurationmodeisusedtosettheSC2311Ltomatchyourheating/coolingsystem.The
SC2311Lfunctionswithheatpump,airconditioning,gas,oilorelectricheatsystems.
ToconguretheSC2311L,performthefollowingsteps:
1. Removethecoverofthethermostatbygentlypullingononeofthetopcorners.
2. SimultaneouslyholdtheLEFTandRIGHTbuttonsinfor5secondswhiletheSC2311LisinOFF
mode.
3. Presstheupordownbuttontochangesettingswithineachscreen.
4. PresstheRIGHTbuttontoadvancetothenextscreen.
Note: The LEFT button will return you to the previous screen.
5. Toexitcongurationmode,slidetheModeswitchtoHeatorCool.
3. 2nd Stage Temperature Differential(1°Fto5°F)(0.5°Cto2.5°C)
Setthenumberofdegreesbetweenwhenstage1turnsonandwhenstage2
turnson.
 Presstheupordownbuttontosetdifferentialvalue.
 PresstheRIGHTbuttontoadvancetothenextscreen.
5. Heat Source (o,b,g,E)
Changebetween“o”Heatpumpcoolactive,“b”Heatpumpheatactive,“g”
(Gas)and“E”(Electric).
 Presstheupordownbuttontosetheatsource.
 PresstheRIGHTbuttontoadvancetothenextscreen.
4. Staged Off Outputs
 Selectwhethertheoutputsforheatingandcoolingarestagedoff
independentlyoraresatisedsimultaneously.
 1=outputsstagedoffindependently
 0=outputsoffsimultaneously
 Presstheupordown buttontoset.
Pressthe RIGHT buttontoadvancetothenextscreen.
6. Auxiliary Delay ON–(0-30minutes)–Setthedelaytimeinminutesforauxiliary
heattobelockedoutafteracallforsecondstage.Thisextrasavingsfeatureis
usedtotemporarilylockoutauxiliaryheatdevices,allowingjustheatpumptotry
tosatisfyheatcall.
 Presstheupordownbuttontoselect.
 PresstheRIGHT buttontoadvancetothenextscreen
7. Lockout (0°F-8°F)(0°C-4°C) –Selectthenumberofdegreessettemperature
canbechangedduringkeypadlockout
Pressthe upordownbuttontoselect.
Pressthe RIGHTbuttontoadvancetothenextscreen.
8. Maximum Heat Setpoint(45°Fto90°F)(7°Cto32°C)
 AdjusttocontrolthemaximumHeatsettemperatureallowed.
 Presstheupordownbuttontoselect.
 Pressthe RIGHTbuttontoadvancetothenextscreen.
9. Minimum Cool Setpoint(45°Fto90°F)(7°Cto32.0°C)
 AdjusttocontroltheminimumCoolsettemperatureallowed.
 Presstheupordownbuttontoselect.
 Pressthe RIGHTbuttontoadvancetothenextscreen.
10.Room temperature offset(+9°Fto-9°F)(+4.5°Cto-4.5°C)
 Adjusttocalibratedisplayedroomtemperaturetomatchactualroom
temperature.
Note: When not set to 0, ROOM will display.
 Presstheupordownbuttontoselect.
 Pressthe RIGHTbuttontoadvancetothenextscreen.
11. Maximum compressor cycles allowed per hour(-,2-6)
 -=asmanyasneeded,and2-6=maximumcycles/hour
 Presstheupordownbuttontoselect.
 PresstheRIGHTbuttontoadvancetothenextscreen.
12.Cooling Fan Delay Off Time(0,30,60,90seconds)
 Selectthefanpurgetimeforcooling.
Presstheupordownbuttontoselect.
 Pressthe RIGHT buttontoadvancetothenextscreen.
13.Status Indicator Light(Lt0,1,2)
 0=Statusindicatorneveron
 1=Statusindicatoronwithrststage
 2=Statusindicatoronwithsecondstage
 Presstheupordownbuttontoselect.
Note: Red light indicates heating cycle and green light indicates cooling cycle.
 SlidetheModeswitchtoHeatorCooltoexitconguration.

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.
LIAF022
Patent No. - Design: 424,953
Patent No. - Thermal Intrusion Barrier: 6,597,275
Patent Pending - SimpleSet
TM
Target Programming Technology
7313 William Barry Blvd., North Syracuse, NY 13212
(Toll Free) 800-365-5525 (Phone) 315-233-5266 (Fax) 315-233-5276
www.icmcontrols.com
Operating Modes
ThesearethepossibleoperatingmodesoftheSC2311L.
Off Mode
Inoffmode,thethermostatwillnotturnontheheatingorcoolingappliances.
Note 2: The indoor fan can be activated in every mode by sliding the Auto/On fan to the On
position.
Note 2: Off mode in used to enter the conguration setup (by pressing LEFT and RIGHT
simultaneously for 5 seconds).
Cool Mode
Incoolmode,thethermostatcontrolsthecoolingsystem.
Thereisafourminutetimedelayafterthecompressorturnsoff.Thisprotectsthecompressor.
Heat Mode
Inheatmode,thethermostatcontrolstheheatingsystem.
Forheatpumps,thereisafourminutetimedelayafterthecompressorturnsoff.Thisprotectsthe
compressor.
Emergency Heat Mode(Heatpumpsystemsonly)
Inemergencyheatmode,theheatpumpsystemwillbedisabledandauxiliaryheatwillbecomethe
primarysourceofheat.
ENTER Emergencyheatmodebypressingtheupbuttonfortensecondswhileinheatmode.“EH”
willthendisplayonthescreen.
EXIT Emergencyheatmodebypressingtheupbuttonfortenseconds.“EH”willnotdisplayon
thescreenwhenyouexitemergencyheatmode.
TheSC2311LalsoexitsemergencyheatmodewhenthemodeswitchismovedtoCool.
Thisfeatureisusedfortransferringthecongurationsettingsfromthemastertothetarget
thermostat.Allthermostatsforajobcanbemountedandpoweredup.Congureonethermostat.This
willbethemaster.Themasterwillbeusedtocopythecongurationtotherestofthethermostats.
Preparing the master to Send:
1.Themastermustbepoweredby24VAC.
2.VerifythemasterthermostatisinOFFmode.Slidesystemswitchtocenter
position.
3.Removecoverofthemasterthermostatbygentlypullingnearoneofthecorners
atthetopofthethermostat.
4.PresstheupanddownbuttonsandLEFTswitchsimultaneouslyfor5seconds.
5.TheOUTscreendisplaysindicatingthemasterthermostatisreadyto
transferdata.
Note: Press the up and down buttons and LEFT switch simultaneously for 5
seconds to exit from data transfer mode and to return the master to the
OFF mode.
6.Connectthemastertothetargetusingthe3wireconnector.Attachoneendto
theMaster’sFPpinsandtheotherendtotheTarget’sFPpins.
Note: Target thermostat must be powered by 24 VAC for eld programming
to occur.
Whentheconnectionhasbeenmadecorrectly,themasterthermostatwillpower
upandthetargetwillcountfrom6downto1.ItwillthendisplayLOCconrming
thedatahasbeensavedinmemory.
Whenalltargetthermostatshavebeencompleted,reinstallthemasterthermostat.
PresstheupanddownbuttonsandtheLEFTswitchsimultaneouslyfor5secondstoexit
fromthedatatransfermodeandtoreturnthemasterthermostattotheOFFmode.
SimpleSetTM Field Programming
FPPins
SC2010N/L
Lockout Feature
TheSC2311Lhasabuttonlockoutfeaturesothetemperatureadjustmentisprohibited
orlimited.SelecttheappropriatelockoutfromCongurationModeSettings(Step7)of
thisguide.
ToactivatetheLOCfeature:
1.SimultaneouslypresstheLEFT, RIGHT andUPbuttonsfor10seconds.
2.LOCwilldisplayandthelockoutfunctionwillbeenabled.
TodeactivatetheLOCfeature,repeatsteps1and2above.
Troubleshooting
Symptom Remedy
Nodisplay Checkfor24VACatthermostat;displayisblankwhen24VACisnot
present
Systemfandoesnotcomeon
properly
Verifywiringiscorrect,checkheatsourcecongurationsettings
(seeCongurationModeSetting5)
Allthermostatbuttonsare
inoperative
Verify24VACispresent;unitlocksoutwhen24VACisnotpresent
Noresponsewithrstbuttonpress Firstbuttonpressactivatesbacklightonly
Thermostatturnsonandofftoo
frequently
Adjusttemperaturedifferential(seeCongurationModeSetting2)
Fanrunscontinuously SlideFANswitchtoautototurnfanoff
Roomtemperatureisnotcorrect Calibratethermostat(seeCongurationModeSetting10)
LOCdisplayswhenanybuttonis
pressed
Thermostathasthebuttonlockoutfunctionactivated
(seeLockoutFeature,andCongurationModeSetting7)
HeatorCoolnotcomingon Verifywiringiscorrect,verifycongurationsettingsarecorrect
Problemnotlistedabove PressResetbuttononce*
* Reset Button Function:Congurationsettingsareunchangedanddisplayisrefreshed.
Starting the Thermostat
RoomTemperature
CAUTION! : Do not use air conditioning when the outdoor temperature is below 50 degrees.
This can damage your air conditioning system and cause personal injuries.
1.MovetheFan Auto/OnswitchtotheAutoposition.
2.MovetheCool/Off/HeatswitchtoCoolorHeat,dependingontheseason.
Mode of Operation
TheSC2311Lisatwo-stageheat,one-stagecoolthermostat.Itfunctionswithairconditioning,heat
pumps,gas,oilorelectricheat.
Thethermostatactivatestherststageheatwhentheroomtemperatureisbelowtheheatset
temperature(bythedifferentialtemperature).Secondstageheatwillbeactivatediftheroom
temperaturecontinuestodrop.Theheatoutputsarestagedoffastheroomtemperatureincreases.
Forheatpumpsystems,thethermostatwillnotletthecompressorcomeonforfourminutesafterit
turnsoff.Thisprotectsyourcompressor.
Whentheroomtemperatureisgreaterthanthecoolsettemperature(bythedifferentialtemperature),
thecoolingdeviceisactivated.Thecooloutputisturnedoffastheroomtemperaturedrops.The
thermostatwillnotletthecompressorcomeonforfourminutesafteritturnsoff.Thisprotectsyour
compressor.
TheSC2311Lhasthefollowingoperatingmodes:OFF,Heat,EmergencyHeat,andCool.InOFF
mode,thethermostatwillnotturnonheatingorcoolingdevices.IntheHeatmode,thethermostat
controlstheheatingsystem.Forheatpumpsystems,EmergencyHeatmodeisusedtobypass
thecompressor(onlybackupheatoperates).IntheCoolmode,thethermostatcontrolsthecooling
system.TheindoorfancanbeturnedoninalloperatingmodesusingtheFanswitch.
Fan Test
1. SlideFanswitchtoOnposition.
2. Indoorfanturnson.
Auto On
Auto On
3. SlideFanswitchtoAutoposition.
4. Indoorfanturnsoff.
Oncethethermostatisinstalled,itshouldbethoroughlytested.
CAUTION!:
Do not energize the air conditioning system when the outdoor temperature is
below 50 degrees. It can result in equipment damage or personal injury.
Testing the Thermostat
Cool Test
1. SlideModeswitchtoCoolmode.
2. Adjustsettemperaturesoitis5degreesbelowroomtemperature.
3. Airconditioningshouldcomeonwithinafewseconds.
4. Adjustthesettemperature2degreesabovetheroomtemperatureandtheA/Cshouldturnoff.
Theremaybeafandelayonyoursystem.
Note: There is a four minute time delay to protect the compressor after it turns off. To
temporarily bypass the four minute delay, slide the Mode switch to OFF for 2 seconds
and then back to Cool.
CoolOffHeat
Heat Test
1. SlideModeswitchtoHeatmode.
2. Adjustthesettemperaturesoitis5degreesabovetheroom
temperature.
3. Heatshouldcomeonwithinafewseconds.
4. Adjustthesettemperaturesoitis2degreesbelowtheroom
temperatureandtheheatshouldturnoff.Theremaybeafandelayonyoursystem.
Note: There is a four minute time delay to protect the compressor after it turns off. To
temporarily bypass the four minute delay, slide the Mode switch to OFF for 2 seconds
and then back to Heat.
CoolOffHeat