ICM Controls SC1600L General instructions

Parts Diagrams
Battery
Compartment
Mode
Switch
Freeze
Switch
High Temp.
Switch
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,andoil
Terminations:R,W,S1,S2
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
• Usethisthermostatonlyasdescribedinthismanual
Package Contents/Tools Required
Package includes: SC1600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.
Manual Changeover
Non-Programmable
Battery
SC1600L/VL
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
• Controls Single Stage Heating Systems
• Millivolt and Hydronic (water or steam) System Compatible
• Compatible with Gas and Oil Systems
• Backlit Display
• Mercury-Free,
Environmentally Safe
To Remove Existing Thermostat
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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.
General Description
The SC1600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
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 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Off/HeatswitchintotheOff 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.Inserttwofresh“AA”alkalinebatteriesintothermostat,orientedinthedirectionshownonthe
batterycompartment.
14.Replacecoveronthermostatbysnappingitinplace.
15.Turnonpowertothesystematthemainservicepanel.
To Install Thermostat
Replacing Wiring Labels
Replacetheoldlabelswiththeenclosed
newlabels. Old New Type
H,W,4 W Heatingcontrol
M,4,RH,RS,R RTransformer,hotside
N/A S1,S2 Optionalremotesensor

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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:Theheatingsystem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.
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turnsonandofftoo
frequently
Adjusttemperaturedifferential
(see“SettingtheTemperatureDifferential”).
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.
LIAF005-1
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
www.icmcontrols.com
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.
1. Removecoverfromremotesensorhousing.
2. Selectanappropriatelocationformountingtheremotesensor.
3. Mountremotesensorunitusinghardwareprovided.
4. Installtwoconductorshieldedwiresbetweenremotesensorandthermostat.Shieldedwiremustbe
used.Donotrunremotesensorwireinconduitwithotherwires.
 • Wire 1shouldrunbetweentheS1terminalonthethermostatandtheS1terminalontheremotesensor
 • Wire 2shouldrunbetweentheS2terminalonthethermostatandtheS2terminalontheremotesensor
 • ConnecttheshieldingofthewiretotheS2terminalonthethermostat
5. Disablethemainsensoronthethermostatbycuttingitfromthecircuitboard.
Remote Sensor Installation (Optional)
S1 GWS2 R
SC1600L/VL Wiring Diagrams
2-Wire, Single Transformer or Millivolt
Heating Only
Zone Valve/Damper Motor System
3-Wire, Zone Valve/Damper Motor System
2-Wire, Zone Valve/Damper Motor System
Use
appropriate
size,single
pole/double
throwrelay
24
VAC
24
VAC
Note: Differential temperature may need to be increased for zone/
damper systems.
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. 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.