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  5. Installation, Operation & Application Manual

ICM Controls SC 4211 Installation, Operation & Application Manual

Manual is about: Non-Programmable Electronic Thermostat

Summary of SC 4211

  • Page 1

    2-stage heat pump auto changeover hardwire sc 4211 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 •configurable •2-stageheatpumpsystems •largedispl...

  • Page 2: Table of Contents

    Table of contents partsdiagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 icondescriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

  • Page 3: Parts Diagram

    Parts diagram configurationswitch resetswitch left(system) button right(fan) button downbutton upbutton fieldprogrammingpins reset config fp.

  • Page 4: Specifications

    Specifications icon descriptions fanoperationicon coolingoperationicon heatingoperationicon lockmode activated room temperature offsetactivated electricalrating: •24vac(18-30vac) •1ampmaximumperterminal •3ampmaximumtotalload temperaturecontrolrange:45°fto90°f(7°cto32°c)accuracy:±1°f(±0 .5°c) systemc...

  • Page 5: Important Safety Information

    Package contents/tools required packageincludes:sc4211thermostatonbase,thermostatcover,wiringlabels,screwsandwall anchors,installation,operationandapplicationguide toolsrequiredforinstallation:drillwith3/16”bit,hammer,screwdriver important safety information warning!: alwaysturnoffpoweratthemainpowe...

  • Page 6: To Install Thermostat

    To install thermostat electricalshockhazard –turnoffpoweratthemainservicepanelbyremovingthefuse orswitchingtheappropriatecircuitbreakertotheoffpositionbeforeremovingtheexisting thermostat. Important: thermostatinstallationmustconformtolocalandnationalbuildingandelectrical codesandordinances . Note: ...

  • Page 7: Single Compressor

    Single compressor heat pump with electric backup dual compressor heat pump with electric backup * outdoor sensor only reads outdoor temperature transformer 120 vac 24 vac reversing valve compressor auxiliary heat optional remote or outdoor sensor service led wire emergency heat fan compressor #2 tra...

  • Page 8

    Remote sensor installation (optional) 1 . Removecoverfromremotesensorhousing . 2 . Selectanappropriatelocationformountingtheremotesensor . 3 . Mountremotesensorunitusinghardwareprovided . 4 . Installtwostrandshieldedwirebetweenremotesensorandthermostat .Shieldedwiremustbe used .Donotrunremotesensorw...

  • Page 9: Sc4211 Output Chart

    Terminal designator descriptions 1 st cool 2 nd cool 1 st heat 2 nd heat heatpump(onecompressor) y1,g,o y1,g,o y1,g,b y1,w2,g,b heatpump(twocompressors) y1,g,o y1,y2,g,o y1,g,b y1,y2,g,b emergencyheat n/a n/a e,g e,w2,g sc4211 output chart l – serviceledindicator r – 24vachot c – 24vaccommon o/b – c...

  • Page 10: Configuration Mode

    Configuration mode off 1 . Verifythesc4211isintheoffmode . Pressthesys(left)buttonuntiloffmodedisplays . 2 . Removethecoverofthethermostatbygentlypullingnearoneofthe cornersatthetopofthethermostat . 3 . Presstheconfigbuttonfor1secondwhilethesc4211isinoffmode . Toexitconfigurationmode,presstheconfigs...

  • Page 11: Configuration Mode Settings

    Configuration mode settings thesetupscreensforconfigurationmodeareasfollows: 1 .Temperaturescale(forc) choosefahrenheitorcelsius . Presstheupordownbuttontoselect . Presstherightbuttontoadvancetothenextscreen . 2 .1 st stagetemperaturedifferential(1°fto5°f)(0 .5°cto2 .5°c) setthenumberofdegreesbetwee...

  • Page 12

    0 5 .Minimumdeadband(1°fto9°f)(1°cto5°c) settheminimumseparationbetweenheatsetpointandcoolsetpointin autochangeovermode . Presstheupordownbuttontosetdeadbandvalue . Presstherightbuttontoadvancetothenextscreen . Presstheupordownbuttontoselect . Presstherightbuttontoadvancetothenextscreen . 6 . System...

  • Page 13

    7 .Auxiliarydelayon–(0-30minutes) setthedelaytimeinminutesforauxiliaryheattobelockedoutaftera callforsecondstage . Presstheupordownbuttontoselect . Presstherightbuttontoadvancetothenextscreen . 8 .Lockout(0-8°,cool-heat) selectthenumberofdegreessettemperaturecanbechangedduringkeypad lockout .Cool-he...

  • Page 14

    12 . Maximumcyclesallowedperhour(--,2-6) --=asmanyasneeded,2-6=maximumcycles/hour presstheupordownbuttontoselect . Presstherightbuttontoadvancetothenextscreen . 11 . Roomtemperatureoffset(+9°fto-9°f)(+4 .5°cto-4 .5°c) adjusttocalibratedisplayedroomtemperaturetomatchactualroom temperature . Note:when...

  • Page 15

    Off 14 . Coolingfandelayofftime(0,30,60,90seconds) selectthefanpurgetimeforcooling . Presstheupordownbuttontoselect . Presstherightbuttontoadvancetothenextscreen . Pressconfigbuttonfor2secondstoexitconfiguration ..

  • Page 16: Mode of Operation

    Mode of operation thesc4211isanon-programmable,manualorautochangeover,2-stageheatpumpthermostat .An outdoorsensorcanbeusedtomonitortheoutdoortemperature . Thethermostatactivatestheheatingappliancewhentheroomtemperatureisbelowthesetheat temperature(bythedifferentialtemperature)andtheredauxindicatorli...

  • Page 17: Button Functions

    Button functions up usedtoincreasethetime,settemperaturesandtoadjustconfigurationsettings . Down usedtodecreasethetime,settemperaturesandtoadjustconfigurationsettings . Sys(left) usedtochangefromoff,heat,emerheat,coolandcool&heatmodes fan(right) usedtoturnonandofftheindoorfan . Up,sysandfan heldinsi...

  • Page 18: Operating Modes

    Operating modes therearefivepossibleoperatingmodesforthesc4211 .Off,heat,emergencyheat,andcool&heat modesareaccessedbypressingthesys(left)button . Off mode •inthismode,thethermostatwillnotturnontheheatingorcooling devices note: theindoorfancanbeturnedonmanuallyineveryoperating modebypressingthefan(r...

  • Page 19: Led Indicators

    Cool mode •inthismode,thethermostatcontrolsthecoolingsystem .Whenthe coolingoutputs,thesnowflakeicon apprearsonthedisplay . Note: thereisafourminutedelayforyourcompressortorestart afterithasturnedoff .Tobypassthecompressortimedelay, gotooffmodefor5seconds . Cool and heat mode (auto changeover) •inth...

  • Page 20: Testing The Thermostat

    Heat test 1 . Presssys(left)buttonuntilheatmodeisdisplayed . 2 . Adjustthesettemperaturesoitis5degreesabovetheroomtemperature . 3 . Heatshouldcomeonwithinafewseconds .Redauxledmayturnon . 4 . Adjustthesettemperature2degreesbelowtheroomtemperatureandthe heatshouldturnoff .Theremaybeafandelayonyoursys...

  • Page 21: Lockout Feature

    Lockout feature thesc4211hasabuttonlockoutfeaturesothemodecannotbechanged andthetemperatureadjustmentislimited .Selecttheappropriatelockout fromconfigurationmodesettings(step8,page11)ofthisguide . Toactivatethelockfeature: 1 . Simultaneouslypressthesys,fanandupbuttonsfor10seconds . 2 . Willdisplayan...

  • Page 22: Simpleset

    0 simpleset tm field programming thisfeatureisusedfortransferringtheconfigurationfromthemastertothetargetthermostat .All thermostatsforajobcanbemountedandpoweredup .Configureonethermostat .Thiswillbethe master .Themasterwillbeusedtocopytheconfigurationtotherestofthethermostats . Preparingthemasterto...

  • Page 23: Troubleshooting

    Troubleshooting symptom remedy nodisplay checkfor24vacatthermostat;displayisblankwhen24vacisnotpresent systemfandoesnotcomeonproperly verifywiringiscorrect allthermostatbuttonsareinoperative verify24vacispresent;unitlocksoutwhen24vacisnotpresent noresponsewithfirstbuttonpress firstbuttonpressactivat...

  • Page 24: One-Year Limited Warranty

    One-year limited warranty thesellerwarrantsitsproductsagainstdefectsinmaterialorworkmanshipforaperiodofone(1) yearfromthedateofmanufacture .Theliabilityofthesellerislimited,atitsoption,torepair,replace orissueanon-casecreditforthepurchasepricesofthegoodswhichareprovidedtobedefective .The warrantyand...