background image

2 Heat/2 Cool

7-Day Programmable 

Hardwired

SC 3801

Programmable Electronic Thermostat

• Programmable and Configurable

• Single/Dual Stage Heat Pump Systems

• Single/Dual Stage Heat/Cool Systems

• Backlit Display

• Auto Changeover

• Simpleset

®

 7 Day Programming

• Compatible with Gas, Oil, or Electric

• Title 24 Compliant/No Batteries Required

• Relay Outputs  

(minimum voltage drop in thermostat)

• Ideally Suited for: 

– 

Residential (New Construction/Replacement), Light Commercial

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

Summary of Contents for SC 3801

Page 1: ...impleset 7 Day Programming Compatible with Gas Oil or Electric Title 24 Compliant No Batteries Required Relay Outputs minimum voltage drop in thermostat Ideally Suited for Residential New Construction Replacement Light Commercial Installation Operation Application Guide For more information on our complete range of American made products plus wiring diagrams troubleshooting tips and more visit us ...

Page 2: ...stallation Optional 4 Wiring Diagrams 5 6 Wiring Diagram Conversions 7 18 Configuration Mode 19 22 Testing the Thermostat 23 Mode of Operation 24 Operating Modes 25 Setting the Time and Day of the Week 26 Programming 27 Simpleset Programming 29 Lockout Function 29 Factory Preprogramming 30 Personal Program Schedule 30 Troubleshooting 33 Table of Contents ...

Page 3: ...rminals 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 Do not use air conditioning when the outdoor temperature is below 50 degrees this can damage your A C system and cause personal injuries Use this thermostat only as described in this manual Important Safety Info...

Page 4: ...om wall 6 Refer to the following section for instructions on how to install this thermostat 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 IMPORTANT Thermostat installation must conform to local and national building and elect...

Page 5: ...d the control wires through wire opening 9 Use supplied screws to mount thermostat base to wall 10 Insert stripped labeled wires in matching wire terminals See Wiring Diagrams section of this manual Pages 5 to 18 If using optional remote sensor see Remote Sensor Installation Page 4 CAUTION Be sure exposed portion of wires does not touch other wires 11 Tighten screws on terminal block Gently tug wi...

Page 6: ... 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 Select correct option for monitoring temperature To monitor temperature with remote sensor only cut R12 from thermostat circuit board To average the temperatures of the remote sensor a...

Page 7: ... Wiring Diagrams First Heating Control First Cooling Control Second Cooling Control Second Heating Control Fan Control First Cooling Control Fan Control Second Cooling Control ...

Page 8: ... Wiring Diagram continued First Heating Control Second Heating Control First Heating Control Second Heating Control Fan Control ...

Page 9: ... SimpleComfort 3801 Electronic Thermostat Conversion to Carrier Split Stream Condensers and Heat Pump Systems SC 3801 Electronic Thermostat Carrier Split Stream Wiring Diagram Conversions ...

Page 10: ... SimpleComfort 3801 Electronic Thermostat Conversion to Coleman 3000 Series Heat Pump Systems SC 3801 Electronic Thermostat ...

Page 11: ... SimpleComfort 3801 Electronic Thermostat Conversion to Comfortmaker CYC Series Heat Pump Systems SC 3801 Electronic Thermostat ...

Page 12: ...10 SimpleComfort 3801 Electronic Thermostat Conversion to Heil Quaker 867 814 Series and PH50 Series Heat Pump Systems SC 3801 Electronic Thermostat ...

Page 13: ...11 SimpleComfort 3801 Electronic Thermostat Conversion to Payne Reliant and Endura Model Heat Pump Systems SC 3801 Electronic Thermostat ...

Page 14: ...12 SimpleComfort 3801 Electronic Thermostat Conversion to Rheem Ruud PGB PFA PCB PLA and PKA Series Heat Pump Systems SC 3801 Electronic Thermostat ...

Page 15: ...1 Electronic Thermostat SimpleComfort 3801 Electronic Thermostat Conversion to Goodman Janitrol Trane American Standard Heat Pumps Note 1 X2 terminal on Goodman PCD capped Note 2 T terminal on Goodman PCD capped ...

Page 16: ...14 SimpleComfort 3801 Electronic Thermostat Conversion to York E1CS E1FB E1FH Heat Pump Systems SC 3801 Electronic Thermostat ...

Page 17: ...15 SC 3801 Electronic Thermostat SimpleComfort 3801 Electronic Thermostat Conversion to Lennox CB19 Heat Pump Systems Note 1 E terminal on Lennox PCD capped Note 2 L terminal on Lennox PCD capped ...

Page 18: ...16 SimpleComfort 3801 Electronic Thermostat Conversion to Lennox HP19 and HP20 Heat Pump Systems SC 3801 Electronic Thermostat ...

Page 19: ...impleComfort 3801 Electronic Thermostat Conversion to Lennox HP21 With CB21 PCB Heat Pump Systems SC 3801 Electronic Thermostat Note 1 E terminal on Lennox PCD capped Note 2 L terminal on Lennox PCD capped ...

Page 20: ...impleComfort 3801 Electronic Thermostat Conversion to Lennox HP22 With CB19 PCB Heat Pump Systems SC 3801 Electronic Thermostat Note 1 E terminal on Lennox PCD capped Note 2 L terminal on Lennox PCD capped ...

Page 21: ... screens for configuration mode are as follows 1 Heat pump Press the or button to configure as heat pump or non heat pump system ON Heat pump system OFF Non heat pump system Press the button to advance to the next screen 2 Reversing valve appears only if heat pump is set to ON Press the or button to set reversing valve If your reversing valve is energized in heat mode set to b If the reversing val...

Page 22: ...advance to the next screen 4 Temperature scale F or C Choose Fahrenheit or Celsius Press the or button to select Press the button to advance to the next screen 8 Staged off outputs Select whether the outputs for heating and cooling are staged off independently or are satisfied simultaneously 1 Economy Mode Outputs are staged on and off in accordance with setpoint and differential 0 Comfort Mode Ou...

Page 23: ... cycle 0 120 seconds Time fan is delayed turning ON at start of cool cycle For no delay set to 0 00 Press the or button to set delay CAUTION Changing from the default of 0 00 may permanently damage your system Press the button to advance to the next screen 12 Fan OFF Delay COOL cycle 0 240 seconds Time fan is delayed turning OFF after cool cycle For no delay set to 0 00 Press the or button to set ...

Page 24: ...17 and minimum cool set temperature selected in Step 18 Note The mode cannot be changed when the thermostat is locked Press the or button to select Press the button to advance to the next screen 19 Room Temperature Offset 9 F to 9 F 5 C to 5 C Adjust to calibrate displayed room temperature to match actual room temperature Press the or button to select To exit Configuration Mode hold in the button ...

Page 25: ... should turn off There may be a fan delay on your system Note There is a four minute time delay to protect the compressor after it turns off To temporarily bypass the four minute delay press the button four times Heat Test 1 Press mode button until heat mode screen is displayed 2 Adjust the set temperature so it is 5 degrees above the room temperature 3 Heat should come on within a few seconds 4 A...

Page 26: ...mperature decreases The thermostat will not let the compressor come on for four minutes after it turns off This protects your compressor The SC3801 has the following operating modes OFF Heat Emergency Heat Cool Cool and Heat and Program mode In OFF mode the thermostat will not turn on heating or cooling devices The indoor fan can be turned on in all operating modes using the fan switch In the Heat...

Page 27: ...s automatically changing over from one to the other as required Operating modes continued on Page 26 Emergency Heat Mode Heat pump systems only In this mode heat pump system will be bypassed and auxiliary heat becomes first stage heat Note Enter Emergency Heat from non program heat mode by pressing the button for 10 seconds Note Exit Emergency Heat by pressing the button for 10 seconds Heat Mode I...

Page 28: ...o the program schedule manually press the button twice The time and day of the week must be set for your program schedule to operate correctly 1 Verify thermostat is in non programmable mode use the button to exit prog mode 2 Press and release button until OFF mode displays 3 Press the button in for 6 seconds 4 Press the or button to adjust the time 5 Press the button while the time is displayed T...

Page 29: ...erify thermostat is in non programmable mode use the button to exit prog mode 2 Press and release the button until OFF mode displays 3 Press the button for 6 seconds 4 Press the button twice Day is displayed 1 7 5 Press the or button to change the day you want to program 1 Monday 2 Tuesday etc 6 Press the button to advance to the next screen Note You can always press the button to return to the pr...

Page 30: ... 13 Press the or button to adjust cool set temperature 14 Press the button to advance to the next screen Programmable fan is displayed 15 Press the or button to turn ON OFF continuous indoor fan for that period 16 Press the button to advance to the next screen Repeat steps 1 16 to program each day of the week individually or use the Simpleset feature see Page 29 to program every day the same as Mo...

Page 31: ...an go through each day and make any changes you require This feature speeds up the programming of the standard weekday weekend schedule 3 Press button for 5 seconds to exit Program mode and return to the OFF mode Simpleset Programming The SC3801 has a button lockout feature so the mode cannot be changed and the temperature adjustment is limited Select the appropriate lockout from Configuration Mod...

Page 32: ...OL 85 F COOL 78 F COOL 82 F FAN ON OFF FAN ON OFF FAN ON OFF FAN ON OFF MONDAY thru SUNDAY Programmable fan option Factory Preprogramming Use the following personal program schedule to record your settings MORN DAY EVE NITE HEAT HEAT HEAT HEAT COOL COOL COOL COOL FAN ON OFF FAN ON OFF FAN ON OFF FAN ON OFF MONDAY 1 Programmable fan option Personal Program Schedule ...

Page 33: ...OOL COOL FAN ON OFF FAN ON OFF FAN ON OFF FAN ON OFF TUESDAY 2 MORN DAY EVE NITE HEAT HEAT HEAT HEAT COOL COOL COOL COOL FAN ON OFF FAN ON OFF FAN ON OFF FAN ON OFF WEDNESDAY 3 MORN DAY EVE NITE HEAT HEAT HEAT HEAT COOL COOL COOL COOL FAN ON OFF FAN ON OFF FAN ON OFF FAN ON OFF THURSDAY 4 ...

Page 34: ... COOL COOL FAN ON OFF FAN ON OFF FAN ON OFF FAN ON OFF FRIDAY 5 MORN DAY EVE NITE HEAT HEAT HEAT HEAT COOL COOL COOL COOL FAN ON OFF FAN ON OFF FAN ON OFF FAN ON OFF SATURDAY 6 MORN DAY EVE NITE HEAT HEAT HEAT HEAT COOL COOL COOL COOL FAN ON OFF FAN ON OFF FAN ON OFF FAN ON OFF SUNDAY 7 ...

Page 35: ...rogram check fan settings in configuration see Configuration Mode Page 19 Room temperature is not correct Verify wall hole is plugged with putty or insulation check wiring and location for remote sensor if used LOC displays when any button is pressed or thermostat buttons are inoperative Thermostat has the button lockout function activated see Lockout Feature Page 29 EH shows on display Thermostat...

Page 36: ... 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 ...

Reviews: