ICM Controls FS1500L - User Manual

Caution
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.
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
General Description
TheSimpleComfort
®
FS1500L/FS1500VL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
•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 R Transformer,hotside
N/A S1,S2 Optionalremotesensor
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: 35°Fto75°FAccuracy:±1°F
Back Light:Notavailableonsomemodels
Differential Rage:1°Fto3°F
System congurations:1-stageheat,gas,oil,electric
Terminations:R,W,G,S1,S2
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
Manual Changeover
Non-Programmable
Battery
• 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
FS1500L/FS1500VL
GARAGE THERMOSTAT
Non-Programmable Electronic Thermostat
Parts Diagram (Horizontal model shown)
Battery
Compartment
Electric/GasJumper
HighTemperatureSwitch
ModeSwitch
FanSwitch
Thermistor
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
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.
Installing and Changing Batteries
Package Contents/Tools Required
Package includes: SimpleComfort
®
FS1500L/FS1500VLthermostatonbase,thermostat
cover,wiringlabels,screwsandwallanchors,(2)“AA”alkalinebatteries,and
Installation,OperationandApplicationGuide.
Tools required for installation:Drillwith3/16”bit,hammer,screwdriver.

ICM Controls FS1500L Specifications

General

Brand	ICM Controls
Model	FS1500L
Category	Thermostat
Language	English

Summary

General Description and Features

General Description

Describes the thermostat as a digital, mercury-free, non-programmable electronic thermostat compatible with single-stage heating.

System Compatibility

Highlights compatibility with single-stage heating, zoned systems, and gas/electric or millivolt systems.

System Customization

Notes the availability of three adjustable temperature differential settings for system control.

Thermostat Installation and Operation

Removing Existing Thermostat

Provides step-by-step instructions for safely removing the old thermostat, including power shutoff and wire labeling.

Replacing Wiring Labels

Guides users on how to replace old wire labels with the new ones provided for correct terminal connections.

Installing New Thermostat

Details the procedure for mounting the new thermostat base, connecting wires, and securing the unit to the wall.

Installing and Changing Batteries

Explains how to install or replace the two 'AA' alkaline batteries for thermostat operation and reset settings.

Advanced Features and Troubleshooting

Remote Sensor Installation

Instructions for optional remote sensor setup, including wiring and disabling the main sensor.

Setting Temperature Differential

Procedure to adjust the temperature differential for more or less frequent system cycling.

Starting the Thermostat Operation

Steps to initiate heating system and fan operation using the thermostat controls.

Quick Test Procedure

Verification steps to confirm proper installation and system response to temperature changes.

Troubleshooting Common Issues

Provides solutions for common symptoms like blank display, LO BAT, or improper fan/heating control.

Wiring Diagrams

Illustrations for various system configurations including single-stage, millivolt, and zone valve/damper systems.

Setting Setpoint Temperature

Guide on how to view and adjust the desired temperature setpoint for the heating system.

Warranty Information

One-Year Limited Warranty

Details the warranty coverage, limitations, and buyer's responsibilities for claims.