ICM Controls SC3000L Installation, Operation & Application Manual page 2

Wiring Diagrams
Heating Only
3-Wire, 2-Wire,
Single Transformer Single Transformer or Millivolt
Heating/Cooling
4-Wire, 5-Wire*,
Single Transformer Two Transformer
Heat Pump Cooling Only
Cool Active Heat Active 3-Wire,
Reversing Valve Reversing Valve Single Transformer
Zone Valve/Damper Motor System
3-Wire, Zone Valve/Damper Motor System
2-Wire, Zone Valve/Damper Motor System
Note: Differential temperature may need to be increased for zone/damper
systems (see Page 10).
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Parts Diagram
Installing and Changing Batteries
If your LCD is blank, or displaying LO BAT, the batteries are not installed or need to be changed. We suggest you
change the batteries at least once a year, or whenever the LO BAT warning displays.
Remove the cover, and install the two "AAA" alkaline 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.
Setting the Setpoint Temperature
1. With the system switch in Heat or Cool, the current temperature setpoint displays.
2. Press the UP or DOWN button until the desired temperature setpoint displays.
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3. The new temperature setpoint is automatically saved in memory.
Configuration Mode
The configuration mode is used to set the SC3000L to match your heating/cooling system. The SC3000L functions
with heat pump, air conditioning, gas, oil or electric heat systems.
To configure the SC3000L, perform the following steps:
1. Verify the SC3000L is in the OFF mode.
Slide the system switch until off mode displays (to the center position).
2. Remove the cover of the thermostat by gently pulling near one of the corners at
the top of the thermostat.
3. Press the CONFIG button for 1 second while the SC3000L is in OFF mode.
Press the UP or DOWN button to change settings within each screen.
Press the RIGHT button to advance to the next screen.
Note: Pressing the LEFT button will return you to the previous screen.
To exit configuration mode, press the CONFIG switch for 1 second.
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Configuration Mode Settings
The setup screens for Configuration Mode are as follows:
1. Temperature Scale (F or C) – Choose Fahrenheit or Celsius.
Press the UP or DOWN button to select.
Press the RIGHT button to advance to the next screen.
2. Temperature Differential (1°F to 5°F) (1°C to 3°C) – Set the number of degrees
between your "setpoint" temperature and your "turn on" temperature.
Press the UP or DOWN button to set differential value.
Press the RIGHT button to advance to the next screen.
3. Heat Pump and Non-Heat Pump – Set to heat pump, or non-heat pump system. For
heat pumps, there will be a compressor time delay for heating and cooling.
• 1 = Heat pump system
• 0 = Non-heat pump system
Press the UP or DOWN button to select.
Press the RIGHT button to advance to the next screen.
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4. Lockout (0-8°) – Select the number of degrees set temperature can be
changed during keypad lockout
Press the UP or DOWN button to select.
Press the RIGHT button to advance to the next screen.
5. Maximum Heat Setpoint (45°F to 90°F) (7°C to 32°C)
Adjust to control the maximum heat set temperature allowed.
Press the UP or DOWN button to select.
Press the RIGHT button to advance to the next screen.
6. Minimum Cool Setpoint (45°F to 90°F) (7°C to 32.0°C)
Adjust to control the minimum cool set temperature allowed.
Press the UP or DOWN button to select.
Press the RIGHT button to advance to the next screen.
7. Room Temperature Offset (+9°F to -9°F) (+5°C to -4°C)
Adjust to calibrate displayed room temperature to match actual room temperature.
Press the UP or DOWN button to select.
Press the RIGHT button to advance to the next screen.
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8. Maximum Cycles Allowed Per Hour (- -, 2-6)
- - = as many as needed, 2-6 = maximum cycles/hour
Press the UP or DOWN button to select.
Press the RIGHT button to advance to the next screen.
9. Back Light (0 or 1)
0 = Back light never on (best for long battery life)
1 = Back light on when button pressed
Press the UP or DOWN button to select.
Press configuration button for 2 seconds to exit the configuration screen.
Starting the Thermostat
Up CAUTION!: Do not use air conditioning when the outdoor temperature is below 50 degrees. This can damage
button
your air conditioning system and cause personal injuries.
1. Move the Fan Auto/On switch
Down
button to the Auto position.
Time
2. Move the Cool/Off/Heat switch
to Cool or Heat, depending on
the season.
Left Right
button button
OFF Indicator
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Testing the Thermostat
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 system switch to Cool position. Cool mode screen is displayed.
2. Adjust set temperature so it is 5 degrees below room temperature.
3. Air conditioning should come on within a few seconds.
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 four minute delay to protect your compressor.
Heat Test
1. Slide system switch to Heat position. 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. 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 four minute delay to protect your compressor.
Fan Test
1. Slide Fan switch to ON position.
2. Indoor fan turns ON.
3. Slide Fan switch to Auto position.
4. Indoor fan turns OFF.
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Operating Modes
OFF Mode
• In this mode, the thermostat will not turn on the heating or cooling devices (manual fan can operate)
• OFF mode is also used to access setup and the program schedule
Cool Mode
• In this mode, the thermostat controls the cooling system
• Press the PROG button to enter and exit Program Cool mode
• In Program Cool mode, the thermostat will follow the program schedule that is stored in memory
Heat Mode
• In this mode, the thermostat controls the heating system
• Press the PROG button to enter or exit the Program Heat mode
• In Program Heat mode, the thermostat will follow the program schedule that is stored in memory
Hold Function
For a temporary hold period, raise or lower set temperature to desired set temperature. The thermostat will
automatically return to programmed set temperature after 2 hours.
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Setting the Time and Day of the Week
The time and day of the week must be set for your program schedule to operate correctly.
1. Slide the system switch to the center position. You are in the OFF mode.
2. Press and hold the PROG button (left) and RIGHT button (simultaneously) in for 6 seconds.
3. Time displays (hour flashing).
Press the UP or DOWN button to adjust the hour.
4. Press the RIGHT button once to select minutes (minutes flashing).
Press the UP or DOWN button to adjust the minutes.
5. Press the RIGHT button once to select day of the week (TODAY flashing).
Press the UP or DOWN button to select current day of the week
(01/Monday, 02/Tuesday, etc.).
Note: At any time, press the PROG (left) button to return to the previous screen or
Room Temperature press the RIGHT button to advance to the next screen.
Press the PROG button and RIGHT button (simultaneously) in for 2 seconds to lock
values into memory and return to the OFF mode or press the RIGHT button once to
12 enter programming.
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