ICM Controls SC 2000 Installation, Operation & Application Manual Download Page 12

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HOT

120 VAC

24 VAC

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

Cool Active

Reversing Valve

Heat Active

Reversing Valve

3-Wire,

Single Transformer

Note:

Place jumper between “W” and “Y” terminals.

Place heat pump jumper to HP position.

Note:

Millivolt system may require a

transformer and/or an isolation

relay to operate properly

Cool Only

Heat Pump

SC2000

Pre-Installed Jumper

RH RC

Pre-Installed Jumper

RH RC

Pre-Installed Jumper

RH RC

Summary of Contents for SC 2000

Page 1: ...ms troubleshooting tips and more visit us at www icmcontrols com SC2000 SC2001 Non Programmable Electronic Thermostats Controls Single Stage Heating Cooling Systems Single Stage Heat Pump Systems Compatible with Gas Oil or Electric Systems Millivolt and Hydronic water or steam System Compatible Mercury Free Environmentally Safe ...

Page 2: ... Install Thermostat 4 Installing and Changing Batteries 6 Replacing Wiring Labels 6 SC2000 Wiring Diagrams 7 10 SC2001 Wiring Diagrams 11 13 A Quick Test 14 Operation 15 Troubleshooting 16 CAUTION This thermostat should be installed by trained technicians only Adhere to all local and national codes Disconnect all power to the system before installing removing or cleaning ...

Page 3: ...P GAS ELEC SC2001 G O B Y RH RC W RH RC NON HP HP SC2000 GAS ELEC Reset Switch Electric Gas Jumper Mode Switch Fan Switch Freeze Switch High Temp Switch Non HP HP Jumper Electric Gas Jumper Mode Switch Fan Switch Freeze Switch High Temp Switch Non HP HP Jumper RH RC Switch ...

Page 4: ...tery signal 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 by unscrewing fuse or switching off circuit breaker Do not switch to Cool if room temperature is below 50 F this could damage your A C system and cause injury Do not install on voltages hi...

Page 5: ...ystems heating cooling systems 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 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 Built in Compressor Prot...

Page 6: ...tat 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 ord...

Page 7: ...tap supplied anchors into 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 CAUTION Be sure exposed portion of wires does not touch other wires 11 Tighten screws on terminal block Gently tug wire to be sure of proper connection Double check that each wire is connected to the proper term...

Page 8: ...o 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 on the batteries are installed properly Installing and Changing Batteries SC2000 only Replace the old labels with the enclosed new labels Replacing Wiring Labels Old New Type F G G Fan control relay O O Cool active...

Page 9: ...em 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 throw relay Note Differential temperature may need to be increased for zone damper system SC2000 Wiring Diagrams ...

Page 10: ...ontrol 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 Transformer HOT 120 VAC 24 VAC T H E R M O S T A T Note Both transformers must be in phase 5 Wire Two Transformer SC2000 RH RC RH RC ...

Page 11: ...VAC Transformer Heating Control Fan Control T H E R M O S T A T RH RC W Y B O G Heating Control T H E R M O S T A T RH RC W Y B O G Thermopile or Transformer 2 Wire Single Transformer or Millivolt SC2000 RH RC Pre Installed Jumper RH RC Pre Installed Jumper ...

Page 12: ...Valve Compressor Contactor Fan Relay Reversing Valve Cooling Control Fan Control Cool Active Reversing Valve Heat Active Reversing Valve 3 Wire Single Transformer Note Place jumper between W and Y terminals Place heat pump jumper to HP position Note Millivolt system may require a transformer and or an isolation relay to operate properly Cool Only Heat Pump SC2000 Pre Installed Jumper RH RC Pre Ins...

Page 13: ...11 4 or 5 Wire Single Transformer 24 VAC T H E R M O S T A T R C Y G 120 VAC HOT Transformer Fan Control W B O Heating Control Optional Cooling Control SC2001 Wiring Diagrams Heating and Cooling ...

Page 14: ...ormer 24 VAC T H E R M O S T A T R C Y G 120 VAC HOT Transformer Fan Control W B O Heating Control 3 Wire Single Transformer 24 VAC T H E R M O S T A T R C Y G 120 VAC HOT Transformer W B O Heating Control Heating Only SC2001 ...

Page 15: ...elay Fan Relay Fan Control Cooling Control Compressor Contactor Reversing Valve Compressor Contactor Reversing Valve Heat Active Reversing Valve Cool Active Reversing Valve 4 Wire Single Transformer Heat Pump Cooling Only SC2001 Note Place jumper between W and Y terminals Place heat pump jumper to HP position Note Millivolt system may require a transformer and or an isolation relay to operate prop...

Page 16: ...lay 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 delay depending on your system Action Set the Cool Off Heat switch to Off Result The heating system should turn off There may be a fan delay Action Set the Fan Auto On switch On Result The blower fan sh...

Page 17: ...y 1 F the thermostat turns your system on If you notice your system turning on and off too frequently increase the temperature differential Step 1 Remove cover Insert a coin or screwdriver in slot at the top if needed Step 2 For SC2000 Removing batteries for 10 seconds and then reinsert them For SC2001 Press the Reset button once see diagrams on Page 1 Step 3 When Diff01 displays press the or arro...

Page 18: ... Page 6 SC2001 Verify 24 VAC is at thermostat Thermostat is not properly controlling the fan Check that the Gas Electric jumper 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 15 Temperature displayed is not accurate Verify no heat producing objects are located near the t...

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Page 20: ...der 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 inspec...

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