ICM Controls SC2000 Quick Start Manual

SC2000/SC2001
Non-Programmable Electronic Thermostats
For Vertical and Horizontal Models
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 Diagrams
SC2000
Battery Compartment RH RC Jumper
SC2000
G O B Y W RH RC
GAS
ELEC
Electric/Gas Mode Fan Freeze
Jumper Switch Switch Switch
Specifications
SC2000
Input:
• Voltage: Millivolt to 30 VAC/VDC
• DC Power: 3 volts (2 "AA" alkaline batteries included)
Output:
• Maximum: 1 amp per terminal (3 amp total for all terminals)
• Temperature control ranges: 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 1.5°C)
• System configurations:
Single-stage heat, single-stage cool or single-stage heat
pump, gas, oil, electric
• Compressor delay: 4 minutes
• Terminations (SC2000): RC, RH, W, Y, O, B, G
• Terminations (SC2001): R, W, Y, O, B, G, C
Important Safety Information
• Always turn off the thermostat before installing, removing, cleaning, or servicing; turn off the power at the main
power source by unscrewing fuse or switching off circuit breaker
• Do not switch to "Cool" if room temperature is below 50 ° F (10 ° C); this could damage your A/C system and cause
injury
• Do not install on voltages higher that 30 VAC
• All wiring must conform to local and national building and electrical codes and ordinances
• While cleaning, do not get soap directly on thermostat switches or LCD readout; only use a damp cloth with a mild
soap to wipe outside of thermostat cover
Package Contents/Tools Required
Package includes: SimpleComfort ® non-programmable thermostat on base, thermostat cover, wiring labels, screws
and wall anchors, batteries (if applicable), Installation, Operation and Application Guide.
Tools required for installation: Drill with 3/16" bit, hammer, screwdriver.
General Description
• The SimpleComfort ® thermostat is a digital, mercury-free, non-programmable, electronic thermostat
• Compatible with single-stage heating systems, heating/cooling systems, and heat pump systems; works with
gas, oil, or electric systems
• Compatible as a master thermostat in zoned system applications
• Freeze Protection Feature (SC2000 only): Protects pipes from freezing! If the room temperature drops to 40 ° F,
the thermostat automatically turns on the heat; the thermostat must be in the Heat position; works even if the
batteries are dead
• Built-in Compressor Protection for Air Conditioners: To protect the A/C's compressor, there is a 4-minute
delay between the system turning off and the A/C starting
• System Customization: Choose Fahrenheit or Celsius display; three available temperature differential
settings
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.
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.
All manuals and user guides at all-guides.com
• Permanent Memory
• Controls Single Stage Heating/
Cooling Systems
• Single Stage Heat Pump Systems
• Compatible with Gas, Oil or Electric
Systems
• Millivolt and Hydronic (water or
steam) System Compatible
• Mercury-Free, Environmentally Safe
SC2001
SC2001
G O B Y W R
GAS
ELEC
Electric/Gas Mode Fan
Jumper Switch Switch
SC2001
Input:
• Voltage: 18-30 VAC
Room temperature
setpoint SET
ROOM
Room temperature
LO BAT
Low battery signal
DIFF
Temperature
differential setting
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 off the appropriate circuit
breaker. Move the Cool/OFF/Heat switch to OFF .
2. Move the FAN AUTO/ON switch to AUTO.
3. To remove cover, insert and twist a coin or screwdriver in the slots on the top of the thermostat.
4. 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).
5. Mark the placement of the mounting holes.
6. Set thermostat base and cover away from working area.
7. Using a 3/16" drill bit, drill holes in the places you have marked for mounting.
8. Use a hammer to tap supplied anchors into mounting holes.
9. Align thermostat base with mounting holes and feed the control wires through wire opening.
10. Use supplied screws to mount thermostat base to wall.
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.
CAUTION!: Remove RH/RC jumper for 2 transformer system (SC2000 only).
12. Set the fan jumper to electric or gas/oil.
13. Install two "AA" alkaline batteries (SC2000 only).
14. Replace cover on thermostat by snapping it in place.
15. Turn on power to the system at the main service panel.
Installing and Changing Batteries (SC2000 only)
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 and whenever the LO BAT warning displays.
Step 1: Move the Cool/Off/Heat switch into the Off position.
Step 2: Move the Fan Auto/On switch into the Auto position.
Step 3: Remove the cover, and install the two "AA" 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.
If the display is on, the batteries are installed properly.
Replacing Wiring Labels
Replace the old labels with the enclosed new labels:
Old New
F, G G Fan control relay
O O Cool active reversing valve
B B Heat active reversing valve
Y, Y6 Y Cooling control
H, W, 4 W Heating control
C Transformer, common side
M, 4, RH, RS, R R Transformer, hot side
If the C terminal is the cooling control, connect to Y terminal; if it is the
C Y or C
common side of the transformer, connect to C terminal
Wiring Diagrams
SC2000 – Zone Valve/Damper Motor Systems
3-Wire, Zone Valve/Damper Motor System
RH RC W Y B O G RH RC
24 VAC
*
* Use appropriate
size, single pole/
double throw relay
Zone 1
2-Wire, Zone Valve/Damper Motor System
RH RC W Y O G RH RC W Y B O
Zone 1
Note: Differential temperature may need to be increased for zone/damper system
SC2000 – Heating/Cooling
4-Wire, Single Transformer
RH RC
Pre-Installed Jumper
Transformer
HOT
RH
120 VAC 24 VAC
RC
T
H
Heating
E
W
Control
R
M
Cooling
Y
Control O
S
B T
A
T
O
Fan
G
Control
Type
Y B O G RH RC Y B G
*
Zone 2 Zone 3
RH RC W Y O G
Zone 2 Zone 3
5-Wire, Two Transformer
Remove RH RC
Pre-Installed
Jumper
HOT
RH
120 VAC 24 VAC
RC
T
H
E
W
R
M
Cooling
Y
O
Control
S
T
B
A
T
O
HOT
120 VAC 24 VAC
Fan
G
Control
(Cooling)
Transformer
Note: Both transformers must be in phase