SC 2201 Manual Changeover Non-Programmable Hardwired Non-Programmable Electronic Thermostat • For use with Heat Pumps • Up to 2-Stage Heat, 2-Stage Cool • 30-Minute Power Loss Memory Retention • For use with 24 VAC Systems 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.
Table of Contents Parts Diagram........................................................ 1 Specifications......................................................... 2 Features/Benefits................................................... 2 Package Contents/Tools Required......................... 2 Important Safety Information.................................. 3 General Description................................................ 2 To Remove Existing Thermostat.............................
Parts Diagram 1
Specifications Room temperature Input: setpoint • Voltage: 24 VAC (18-30 VAC) Room temperature Output: Temperature • Maximum: 1 amp maximum load per terminal differential setting (4 amp total maximum load for all terminals) Temperature Ranges: • Temperature control range: 45°F to 90°F (7°C to 32°C) Accuracy: ± 1°F (± 0.5°C) • Differential range: 1°F to 3°F (0.5°C to 1.
Important Safety Information • Always turn off power at the main power source by unscrewing fuse or switching circuit breaker to the off position before installing, removing, cleaning, or servicing this thermostat • Read all of the information in this manual before installing this thermostat • This thermostat should be installed only by a professional contractor • This is a 24 VAC low-voltage thermostat; do not install on voltages higher than 30 VAC • All wiring must conform to local and national building a
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.
To Install 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. IMPORTANT: This thermostat is compatible with 100% lockout systems. To reset the system, turn thermostat to Off position for at least 60 seconds.
12. Insert stripped, labeled wires in matching wire terminals. See Wiring Diagrams section of this manual (Pages 1124). CAUTION!: Be sure exposed portion of wires does not touch other wires. 13. 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. 14. Seal hole for wires with non-flammable putty or insulation. 15. Replace cover on thermostat by snapping it in place. 16.
Note: While in Cool or Heat mode, once the thermostat turns the system off, a built-in delay keeps the compressor from turning on for about 5 minutes. This protects the compressor. Mode 4. Put the Mode switch to the Heat position. 5. Press the button until the temperature setting is at least 3 degrees above room temperature. The heating system should turn on. Note: The compressor may not turn on again for 5 minutes. Cool Off Heat Emer Mode 6. Put the Mode switch to the Off position.
LED Indicators There are three LED indicators located on the front of the thermostat. They are designed to inform you of the following: AUX (GREEN): This turns on when the auxiliary (back-up) heating is in operation. This is the second (non-economy) stage of heat. It turns on 2 degrees below first stage and is not adjustable. CHECK (RED): When this turns on, a malfunction has occurred somewhere in the heat pump system. Please contact a qualified service technician as soon as possible to check your system.
Operation Setting the Room Temperature (Setpoint Temperature) Step 1: Press the Step 2: Press the or or button; the current temperature setpoint displays. button until the desired temperature setpoint displays. Note: Holding down either the or button will scroll the temperature display. The new temperature setting is automatically saved. After 5 seconds, the display returns to showing the current room temperature.
Changing Fahrenheit to Celsius The temperature displays in degrees Fahrenheit as a factory set default. Follow these steps to change to degrees Celsius: Step 1: Remove the cover. Step 2: Move the F/C jumper to the desired position, F or C using the center pin as a common. Step 3: Press the Reset button once and reinstall the cover. Your LCD readout changes accordingly. Starting the Thermostat Step 1: Move the Fan switch into the Auto position.
Wiring Diagrams SimpleComfort® 2201 Electronic Thermostat Conversion to: Carrier Split Stream Condensers and Heat Pump Systems SimpleComfort® 2201 R Carrier Split Stream Low Voltage Terminal Board R Y O G E W2 L C Y1 O B G E W2 L C Y2 24 VAC, Return Compressor Contactor Reversing Valve (Cooling Mode) Fan Contactor Circuit Emergency Heating Circuit 2nd Stage Heating Circuit System Monitor LED 24 VAC, Common W3 11
SimpleComfort® 2201 Electronic Thermostat Conversion to: Coleman 3000 Series Heat Pump Systems SimpleComfort® 2201 R Coleman 3000 Low Voltage Terminal Board R Y B G E W2 L X O 12 24 VAC, Return Compressor Contactor Reversing Valve (Heating Mode) Fan Contactor Circuit Emergency Heating Circuit 2nd Stage Heating Circuit System Monitor LED 24 VAC, Common Y1 O B G E W2 L C Y2
SimpleComfort® 2201 Electronic Thermostat Conversion to: Comfortmaker CYC Series Heat Pump Systems Note 1: E and W2 terminals jumpered at thermostat. Note 2: W2 terminal on Comfortmaker capped at PCB. Note 2: X terminal on Comfortmaker capped at PCB.
SimpleComfort® 2201 Electronic Thermostat Conversion to: Heil-Quaker 867.814 Series and PH50 Series Heat Pump Systems Note 1: E and W2 terminals jumpered at thermostat. Note 2: W2 terminal on Heil-Quaker capped at PCB. SimpleComfort® 2201 Heil-Quaker 867.
SimpleComfort® 2201 Electronic Thermostat Conversion to: Payne Reliant and Endura Model Heat Pump Systems Note 1: W3 terminal on Payne PCB capped at PCB.
SimpleComfort® 2201 Electronic Thermostat Conversion to: Rheem/Ruud: -PGB, -PFA, -PCB, -PLA, and -PKA Series Heat Pump Systems Note 1: E and W2 terminals jumpered at thermostat.
SimpleComfort® 2201 Electronic Thermostat Conversion to: Goodman, Janitrol, Trane/American Standard Heat Pump Systems Goodman, Janitrol, Trane/American Standard Low Voltage Terminal Board Note 1: E and W2 terminals jumpered at thermostat. Note 2: X2 terminal on Goodman, etc. capped at PCB. Note 2: T terminal on Goodman, etc. capped at PCB.
SimpleComfort® 2201 Electronic Thermostat Conversion to: York -E1CS, -E1FB, E1FH Heat Pump Systems Note 1: E and W2 terminals jumpered at thermostat.
SimpleComfort® 2201 Electronic Thermostat Conversion to: Lennox CB19 Heat Pump Systems SimpleComfort® 2201 R Lennox CB19 Low Voltage Terminal Board R Y O G E W L C Y1 O B G E W2 L C Y2 24 VAC, Return Compressor Contactor Reversing Valve (Cooling Mode) Fan Contactor Circuit Emergency Heating Circuit 2nd Stage Heating Circuit System Monitor LED 24 VAC, Common T 19
SimpleComfort® 2201 Electronic Thermostat Conversion to: Lennox HP19 and HP20 Heat Pump Systems SimpleComfort® 2201 R Lennox HP19 and HP20 Low Voltage Terminal Board V-VR 20 M R F E Y X 24 VAC, Return Compressor Contactor Reversing Valve (Cooling Mode) Fan Contactor Circuit Emergency Heating Circuit 2nd Stage Heating Circuit 24 VAC, Common Y1 O B G E W2 L C Y2
SimpleComfort® 2201 Electronic Thermostat Conversion to: Lennox HP21 with CB21 PCB Heat Pump Systems SimpleComfort® 2201 R Lennox HP21 with CB21 PCB Low Voltage Terminal Board R-VR Y O F E W L X Y2 Y1 O B G E W2 L C Y2 24 VAC, Return Compressor Contactor Reversing Valve (Cooling Mode) Fan Contactor Circuit Emergency Heating Circuit 2nd Stage Heating Circuit System Monitor LED 24 VAC, Common 2nd Stage Cooling Circuit 21
SimpleComfort® 2201 Electronic Thermostat Conversion to: Lennox HP22 with CB19 PCB Heat Pump Systems SimpleComfort® 2201 R Lennox HP22 with CB19 PCB Low Voltage Terminal Board R-VR M R F E Y L X Y2 22 24 VAC, Return Compressor Contactor Reversing Valve (Cooling Mode) Fan Contactor Circuit Emergency Heating Circuit 2nd Stage Heating Circuit System Monitor LED 24 VAC, Common 2nd Stage Cooling Circuit Y1 O B G E W2 L C Y2
SimpleComfort® 2201 Electronic Thermostat Conversion to: FHP 1 Stage Heat Pump Systems SimpleComfort® 2201 R FHP 1 Stage Low Voltage Terminal Board R Y O G E W C Y1 O B G E W2 L C Y2 24 VAC, Return Compressor Contactor Reversing Valve (Cooling Mode) Fan Contactor Circuit Emergency Heating Circuit 2nd Stage Heating Circuit 24 VAC, Common Note: For units with ECM motors and the 641-065 interface board, connect W2 from the thermostat to W1 at the heat pump.
SimpleComfort® 2201 Electronic Thermostat Conversion to: FHP 2 Stage Heat Pump Systems Note 1: Jumper from W2 to Y2 for 2-compressor systems without electric heat only.
Troubleshooting Symptom Remedy The system is not turning on Check the wiring (see Installation, Page 5) LCD is blank Display is blank when voltage is not present at the thermostat Check circuit breaker or for an open fuse Thermostat does not turn on the system as frequently as it should Decrease the temperature differential (see Setting a New Temperature Differential, Page 9) Thermostat is not properly controlling the fan Check the wiring (see Installation, Page 5) Thermostat is continuously turni
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.
