ICM Controls SimpleComfort 2010 General instructions

1 Heat/1 Cool
Manual Changeover
Battery or Hardwire
SC 2010
Non-Programmable Electronic Thermostat
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
• Configurable
• Single Stage Heat/Cool Systems
• Single Stage Heat Pump Systems
• Backlit Display
• Compatible with Gas, Oil, or Electric
• Filter Check
• Status Indicator Light
• Relay Outputs
(minimum voltage drop in thermostat)
• Ideally Suited for:
– Residential (New Construction/Replacement)
– Light Commercial

Table of Contents
Parts Diagram .............................................................................................................................1
Specifications .............................................................................................................................. 2
Important Safety Information .....................................................................................................2
Package Contents/Tools Required............................................................................................... 2
To Remove Existing Thermostat ................................................................................................3
To Install Thermostat .................................................................................................................. 3
Wiring Diagrams..........................................................................................................................5
Configuration Mode...................................................................................................................10
Testing the Thermostat ............................................................................................................13
Mode of Operation ....................................................................................................................14
Troubleshooting ........................................................................................................................15

1
Parts Diagram

2
Electrical rating: • 24 VAC (18-30 VAC) • DC Power: 3.0 VDC (2 “AA” batteries included)
• 1 amp maximum per terminal • 3 amp maximum total load
Temperature control range: 45°F to 90°F (7°C to 32°C) Accuracy: ± 1°F (± 0.5°C)
System configurations: 1-stage heat, 1-stage cool, heat pump, gas, oil, electric
Timing: Anti-short Cycle: 5 minutes
Backlight Operation: Battery for 5 seconds, hardwired for 10 seconds
Terminations: RC, RH, W, Y, B, O, G, C
Specications
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
• 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 Information
Package includes: SimpleComfort®2010 thermostat on base, thermostat cover, wiring labels, screws and
wall anchors, Installation, Operation and Application Guide
Tools required for installation: Drill with 3/16” bit, hammer, screwdriver
Package Contents/Tools Required

3
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 the appropriate
circuit breaker off.
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 the appropriate
circuit breaker off.
To Install Thermostat
To Remove Existing Thermostat

4
To Install Thermostat (continued)
2. To remove cover, insert and twist a coin or screwdriver in the slots on the sides of the thermostat.
3. 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).
4. Mark the placement of the mounting holes.
5. Set thermostat base and cover away from working area.
6. Using a 3/16” drill bit, drill holes in the places you have marked for mounting.
7. Use a hammer to tap supplied anchors in mounting holes.
8. Align thermostat base with mounting holes and feed 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 (Page 5).
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 terminal.
12. Seal hole for wires behind thermostat with non-flammable insulation or putty, or use an ICM insulated
wall plate (ACC-WP01).
13. Set the Gas/Electric swith to electric or gas/oil.
14. Install two “AA” alkaline batteries (if required per wiring diagrams on Pages 5-9) in the thermostat
oriented in the direction shown on the battery holder.
15. Replace cover on thermostat by snapping it in place.
16. Turn on power to the system at the main service panel.
17. Test thermostat operation as described in “Testing the Thermostat” (Page 13).

5
Battery Powered
2-Wire, Single Transformer
Note: Batteries required.
Battery Powered
3-Wire, Single Transformer
Note: Batteries required.
Wiring Diagrams

6
Hardwired
3-Wire, Single Transformer
Note: Batteries (optional) will work as a
backup during power outages.
Hardwired
4-Wire, Single Transformer
Note: Batteries (optional) will work as a
backup during power outages.

7
Hardwired
5-Wire*, Two Transformer
Fan
Control
Hardwired
4 or 5-Wire, Single Transformer
Fan
Control
Note: Batteries (optional) will work as a
backup during power outages.
Note: Batteries (optional) will work as a
backup during power outages.

8
Hardwired
Cool Active Reversing Valve
Note:
Batteries (optional)
will work as a
backup during
power outages.
Hardwired
Heat Active Reversing Valve
Note:
Batteries (optional)
will work as a
backup during
power outages.

9
Hardwired
4-Wire, Single Transformer
Battery Powered
3-Wire, Single Transformer
Note: Batteries required.Note: Batteries (optional) will work as a
backup during power outages.

10
The configuration mode is used to set the SC2010 to match your heating/cooling system. The SC2010 functions with heat
pump, air conditioning, gas, oil or electric heat systems.
To configure the SC2010, perform the following steps:
1. Remove the cover of the thermostat by gently pulling on one of the corners.
2. S imultaneously hold the SW5 and SW6 buttons in for 5 seconds while the SC2010 is in OFF mode.
3. Press the or button to change settings within each screen.
4. Press the SW6 button to advance to the next screen.
Note: The SW5 button will return you to the previous screen.
5. To exit configuration mode, slide the Mode switch to Heat or Cool.
Configuration Mode Settings
The nine (9) setup screens for Configuration Mode are as follows:
1. Heat pump and Non Heat Pump – Press the or button to configure as heat
pump, or non-heat pump system. For heat pumps, there will be an anti-short
cycle delay for heating and cooling
• 1 = Heat pump system
• 0 = Non-heat pump system
Press the SW6 button to advance to the next screen.
2. Temperature Scale (F or C) – Choose Fahrenheit or Celsius.
Press the or button to select.
Press the SW6 button to advance to the next screen.
Conguration Mode
3. Temperature Differential (1°F to 3°F) (0.5°C to 1.5°C) – Set the number of degrees
between your “setpoint” temperature and your “turn on” temperature.
Press the or button to set differential value.
Press the SW6 button to advance to the next screen.
DIFF
SET
SET
SET

11
Configuration Mode Settings (continued)
4. Minimum Cool Setpoint (45°F to 75°F) (7°C to 24.0°C)
Adjust to control the minimum Cool set temperature allowed.
Press the or button to select.
Press the SW6 button to advance to the next screen.
5. Maximum Heat Setpoint (55°F to 90°F) (13°C to 32°C)
Adjust to control the maximum Heat set temperature allowed.
Press the or button to select.
Press the SW6 button to advance to the next screen.
SET
SET
SET
SET

12
9. Status Indicator Light (Lt 0 or 1)
0 = Status indicator never on
1 = Status indicator on with first stage
Press the or button to select.
Note: Red light indicates heating cycle and green light indicates cooling cycle
Slide the Mode switch to Heat or Cool to exit configuration.
8. Filter Check time (300-800, – – –)
Set Fan Run Time (in hours) when Check Filter is displayed or set to – – – to disable.
Press the or button to select.
Note: To reset filter counter to zero and clear filter warning, press the and
buttons simultaneously for 5 seconds.
Press the SW6 button to advance to the next screen.
7. Maximum heating or cooling cycles allowed per hour (-, 2-6)
- = as many as needed, 2-6 = maximum cycles/hour
Press the or button to select.
Press the SW6 button to advance to the next screen.
FILTER
SET
ROOM
SET
SET
SET
6. Room temperature offset (+9°F to -9°F) (+4.5°C to -4.5°C)
Adjust to calibrate displayed room temperature to match actual room temperature.
Note: When not set to 0, ROOM will display
Press the or button to select.
Press the SW6 button to advance to the next screen.

13
Once the thermostat is installed, it should be thoroughly tested.
CAUTION!: Do not energize the air conditioning system when the outdoor temperature is below 50
degrees. It can result in equipment damage or personal injury.
Cool Test
1. Slide Mode switch to Cool mode.
2. Adjust set temperature so it is 5 degrees below room temperature.
3. Air conditioning should come on within a few seconds. Status indicator may come on.
4. Adjust the set temperature 2 degrees above the room temperature and the A/C
should turn off. There may be a fan delay on your system.
Note: There is a five minute time delay to protect the compressor after it turns
off. To temporarily bypass the five minute delay, slide the Mode switch to
OFF for 2 seconds and then back to Cool.
Heat Test
1. Slide Mode switch to Heat mode.
2. Adjust the set temperature so it is 5 degrees above the room temperature.
3. Heat should come on within a few seconds. Status indicator may come on.
4. Adjust the set temperature so it is 2 degrees below the room temperature
and the heat should turn off. There may be a fan delay on your system.
Note: For heat pumps, there is a five minute time delay to protect the
compressor after it turns off. To temporarily bypass the five minute delay,
slide the Mode switch to OFF for 2 seconds and then back to Heat.
Fan Test
1. Slide Fan switch to On position.
2. Indoor fan turns on.
Cool Off Heat
Cool Off Heat
Testing the Thermostat
Auto On
Auto On
3. Slide Fan switch to Auto position.
4. Indoor fan turns off.

14
The SC2010 is a single-stage heat, single-stage cool thermostat. It functions with air conditioning, heat
pumps, gas, oil or electric heat.
The SC2010 can use 24 VAC or batteries as a power supply. The SC2010 can be hardwired and have no
batteries installed in the battery compartment. It can also run on battery power only. When batteries are
installed and the thermostat is hardwired, the batteries will run the thermostat during a power outage.
When operating on battery power, the backlight will be on for 5 second intervals. When hardwired, the
backlight will be on for 10 second intervals.
The thermostat activates a heating appliance when the room temperature is below the heat set
temperature (by the differential temperature). It will turn off when the room temperature is one degree
above the heat set temperature. With heat pumps, the thermostat will not let the compressor come on for
five minutes after it turns off. This protects your compressor.
When the room temperature is greater than the cool set temperature (by the differential temperature),
the cooling device is activated. It will turn off when the room temperature is one degree below the cool set
temperature. The thermostat will not let the compressor come on for five minutes after it turns off. This
protects your compressor.
The SC2010 has the following operating modes: OFF, Heat and Cool. In OFF mode, the thermostat will not
turn on heating or cooling devices. In the Heat mode, the thermostat controls the heating system. In the
Cool mode, the thermostat controls the cooling system. The indoor fan can be turned on in all operating
modes using the Fan switch.
Mode of Operation

15
Symptom Remedy
No display For Hardwired Installation
Check for 24 VAC at thermostat; display is blank when 24 VAC is not present
For Battery Installation
Display is blank when batteries are drained or installed incorrectly
System fan does not come on
properly
Verify wiring is correct
Check position of gas/electric switch
Thermostat turns on and off too
frequently
Adjust temperature differential (see “Temperature Differential,” Step 3, Page 10)
Fan runs continuously Check fan On/Auto switch, ON position runs indoor fan continuously
Room temperature is not correct Verify wall hole is plugged with putty or insulation; calibrate thermostat (see
“Configuration,” Step 6, Page 12)
ROOM displays Room temperature offset is not zero (see “Configuration,” Step 6, Page 12)
Status indicator Green light – Cooling operation
Red light – Heating operating
Status indicator option ON (see “Configuration,” Step 9, Page 12)
filter displays Fan run time has exceeded filter check time set in configuration (see
“Configuration,” Step 8, Page 12)
To reset counter to zero and clear filter warning, press the and button
simultaneously for 5 seconds
displays Low battery indicator displays when batteries need to be replaced. Use only fresh
“AA” alkaline batteries
Problem not listed above Press the Reset button once; display will be refreshed and anti-short cycle timing
will be reset to zero
Troubleshooting

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