ICM Controls SC4011 Installation, Operation & Application Manual

SC401 1
1 Heat/1 Cool
Auto Changeover
Non-Programmable Electronic Thermostat
• Configurable
• Single-Stage Heat/Cool Systems
• Single-Stage Heat Pump Systems
• Large Display With Backlight
• Selectable Fahrenheit or Celsius
• Compatible with Gas, Oil, or Electric
• SimpleSet™ Field Programming
• Status Indicator Light
• Relay Outputs
(minimum voltage drop in thermostat)
• Remote Sensor Compatible
• 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
Parts Diagram
Up button
Down button
S1 S2 Y W G RC RH C
RC
FP O/B
Right (fan)
RH
button
RESET CONFIG
Left (system)
button
RC/RH Jumper
Field programming pins
Configuration switch
Reset switch
Icon Descriptions
Room temperature
Fan operation icon
offset activated
Cooling operation icon
Lock mode activated
Heating operation icon

Specifications

Electrical rating: • 24 VAC (18-30 VAC)
• 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: 4 minutes
Backlight Operation
Terminations: S1, S2, Y, W/O/B, G, RC, RH, C
Important Safety Information
Hardwire 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
Package Contents/Tools Required
Package includes: SC4011 Pro 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

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 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.

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.
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.
2. To remove cover, pull gently at the seam at the top.
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 slit in thermal
intrusion barrier and into wire opening.
9. Use supplied screws to mount thermostat base to wall.
10. For 2 transformer systems, remove and discard RC/RH jumper.
11. Insert stripped, labeled wires in matching wire terminals.
CAUTION!: Be sure exposed portion of wires does not touch other wires.
12. Gently tug wire to be sure of proper connection. Double check that each wire is connected to the
proper terminal.
13. Turn on power to the system at the main service panel.
14. Configure thermostat (see Configuration Mode Setting 4) to match the type of system you have.
15. Replace cover on thermostat by snapping it in place.
16. Test thermostat operation as described in "Testing the Thermostat".
Wiring Diagrams
Hardwired
4-Wire, Single Transformer 3-Wire, Single Transformer
Hardwired
4 or 5-Wire, Single Transformer
Hardwired
Cool or Heat Active Reversing Valve
Remote or Outdoor Sensor Installation (Optional)
1. Remove cover from remote sensor housing.
2. Select an appropriate location for mounting the remote sensor.
3. Mount remote sensor unit using hardware provided.
4. Install two strand shielded wire between remote sensor and thermostat. Shielded wire must be
used. Do not run remote sensor wire in conduit with other wires.
• Wire 1 should run between the S1 terminal on the thermostat 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. Configure the thermostat to operate with the remote sensor (see Configuration Mode setting 10).
Remote Sensor: (Shown: Optional ICM ACC-RT103 Remote Indoor
Sensor; for outdoor sensor, order ACC-OD103.)
Note: Remote or outdoor sensor reading can be displayed by
simultaneously pressing the Down and SYS buttons.
Configuration Mode
Hardwired
The configuration mode is used to set the SC4011 Pro to match your heating/cooling system. The
SC4011 Pro functions with heat pump, air conditioning, gas, oil or electric heat systems.
To configure the SC4011 Pro, perform the following steps:
1. Verify the SC4011 Pro is in the OFF mode.
Press the SYS (left) button until off mode displays.
2. Remove the cover of the thermostat by gently pulling near one of the corners at the top of the
thermostat.
Hardwired
5-Wire, Two Transformer 3. Press the CONFIG button for 1 second while the SC4011 Pro is in OFF
(Both transformers must be in phase) mode.
Press the up or down button to change settings within each screen.
Fan
Control
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.
IMPORTANT: Before wiring, remove pre-installed

Configuration Mode Settings

RC/RH jumper.
The setup screens for Configuration Mode are as follows:
Hardwired 1. Temperature Scale (F or C)
4-Wire, Single Transformer
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) (0.5°C to 2.5°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. Deadband (1°F - 9°F) (1°C - 5°C)
Set the minimum number of degrees between your heat setpoint and your
cool setpoint in Autochangeover mode.
Press the up or down button to set deadband value.
Press the right button to advance to the next screen.
4. System – Set for heat pump, non-heat pump, reversing valve operation and number of
compressors in your system.
Choose System
HP
Heat Pump
HP
Heat
Non-Heat
Pump
Heat
Press the up or down button to select.
Press the right button to advance to the next screen.
5. Lockout (0-8°, COOL-HEAT)
Select the number of degrees set temperature can be changed during
keypad lockout. COOL-HEAT lockout allows adjustment of the set
temperatures to the maximum heat set temperature selected in Step 6 and
minimum cool set temperature selected in Step 7.
Note: The mode cannot be changed when the thermostat is locked.
Press the up or down button to select.
Press the right button to advance to the next screen.
6. 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.
7. Minimum Cool Setpoint (45°F to 90°F) (7°C to 32°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.
OFF 8. 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, will display.
Press the up or down button to select.
Press the right button to advance to the next screen.
CONFIG
Up
button
Down
button
Left Right
button button
Reversing Valve Number of Compressors Type of
Active or Compressor Stages Heat
O 1
b 1
Gas
Electric