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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 and cooling 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 section for instructions on how to install this 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.

 

IMPORTANT:

 Thermostat installation must conform to local and national building and electrical 

codes and ordinances. 

 

Note:

 

Mount the thermostat about five feet above the floor. 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 off the appropriate 

circuit breaker. Move the 

Cool/OFF/Heat

 switch to 

OFF

.

To Install Thermostat

Summary of Contents for SC 2000

Page 1: ...tion 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 Cooling Systems Single Stage Heat...

Page 2: ...ting Thermostat 4 To Install Thermostat 4 Installing and Changing Batteries 6 Replacing Wiring Labels 6 Operation 7 A Quick Test 8 Wiring Diagrams 9 Troubleshooting 13 CAUTION This thermostat should b...

Page 3: ...witch Fan Switch Electric Gas Switch Battery Compartment Heat Pump Non Heat Pump Jumper Celsius Fahrenheit Jumper W RC RH Y B O G HEAT COOL OFF ON AUTO ELECTRIC GAS 2000 F C NON HP HP High Temperature...

Page 4: ...Temperature differential setting Room temperature Room temperature setpoint Always turn off the thermostat before installing removing cleaning or servicing turn off the power at the main power source...

Page 5: ...tems and heat pump systems works with gas oil or electric systems Compatible as a master thermostat in zoned system applications Freeze Protection Feature Protects pipes from freezing If the room temp...

Page 6: ...at base from wall 6 Refer to the following section for instructions on how to install this thermostat ELECTRICAL SHOCK HAZARD Turn off power at the main service panel by removing the fuse or switching...

Page 7: ...ng 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 CAUTION Be sure exposed portion of wires do...

Page 8: ...batteries into the battery compartment 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...

Page 9: ...requently increase the temperature differential Step 1 Reset thermostat by removing batteries for 10 seconds Step 2 For the first 10 seconds of operation the temperature differential is displayed Pres...

Page 10: ...elay Action Set the Cool Off Heat switch to Heat Press the button until the temperature setting is 3 F above the room temperature Result The heating system and fan should turn on There may be a time d...

Page 11: ...ystem RH RC W Y B O G RH RC W Y B O G RH RC W Y B O G RH RC W Y B O G RH RC W Y B O G RH RC W Y B O G Zone 1 Zone 3 Zone 2 Zone 1 Zone 3 Zone 2 24 VAC 24 VAC Use appropriate size single pole double th...

Page 12: ...Cooling Control Fan Control T H E R M O S T A T RH RC W Y B O G HOT RH RC W Y B O G 120 VAC 24 VAC Remove Pre Installed Jumper Heating Control Cooling Control Fan Control Heating Transformer Cooling T...

Page 13: ...4 VAC Transformer Heating Control Fan Control T H E R M O S T A T RH RC W Y B O G Remove Pre Installed Jumper Heating Control T H E R M O S T A T RH RC W Y B O G Remove Pre Installed Jumper Thermopile...

Page 14: ...C Transformer Transformer HOT 120 VAC 24 VAC Transformer HOT 120 VAC 24 VAC Compressor Contactor Fan Relay Reversing Valve Compressor Contactor Fan Relay Reversing Valve Cooling Control Fan Control Co...

Page 15: ...that the fan switch setting matches your system gas or electric Thermostat is continuously turning on and off Increase the temperature differential see Setting a New Temperature Differential Page 7 Te...

Page 16: ...r 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 Se...

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