ICM Controls SC2000L Istruzioni generali
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
SC2000/SC2001
Non-Programmable Electronic Thermostats
• 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
Table of Contents
Parts Diagram ............................................................................................................................. 1
Specifications .............................................................................................................................. 2
Important Safety Information ..................................................................................................... 2
Package Contents/Tools Required............................................................................................... 3
General Description..................................................................................................................... 3
To Remove Existing Thermostat ................................................................................................ 4
To Install Thermostat .................................................................................................................. 4
Installing and Changing Batteries................................................................................................ 6
Replacing Wiring Labels .............................................................................................................. 6
SC2000 Wiring Diagrams........................................................................................................ 7-10
SC2001 Wiring Diagrams...................................................................................................... 11-13
A Quick Test.............................................................................................................................. 14
Operation .................................................................................................................................. 15
Troubleshooting ........................................................................................................................ 16
CAUTION!
:
This thermostat should be installed by trained technicians only. Adhere to all local
and national codes. Disconnect all power to the system before installing, removing,
or cleaning.
1
Parts Diagrams
SC2000 SC2001
Battery
Compartment
G O B Y C RW
NON HP–HP
GAS
ELEC
SC2001
G O B Y RH RCW
RH RC
NON HP–HP
SC2000
GAS
ELEC
Reset Switch
Electric/Gas
Jumper
Mode
Switch
Fan
Switch
Freeze
Switch
High Temp.
Switch
Non HP – HP
Jumper
Electric/Gas
Jumper
Mode
Switch
Fan
Switch
Freeze
Switch
High Temp.
Switch
Non HP – HP
Jumper
RH RC
Switch
2
Important Safety Information
Input: Input:
• Voltage: Millivolt to 30 VAC/VDC • Voltage: 18-30 VAC
• 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 Accuracy: ± 1°F
• Differential range: 1°F to 3°F
• System configurations: Single-stage heat, single-stage cool
or single-stage heat pump, gas, oil,
electric
• Terminations (SC2000): RC, RH, W, Y, O, B, G
• Terminations (SC2001): R, W, Y, O, B, G, C
SET
ROOM
LO BAT
DIFF
Low battery signal
Temperature
differential setting
Room temperature
Room temperature
setpoint
• 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; 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
Specications
SC2000 SC2001
3
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.
• 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: 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 5-minute
delay between the system turning off and the A/C starting
• System Customization: Three available temperature differential settings
General Description
4
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.
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
.
To Install Thermostat
5
To Install Thermostat (continued)
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, and heat pump jumper to NON-HP or HP.
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.
6
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.
Note: After installing new batteries, you have to reset the room temperature setting and the
differential setting.
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.
Installing and Changing Batteries (SC2000 only)
Replace the old labels with the enclosed new labels:
Replacing Wiring Labels
Old New Type
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
C Y or C
If the C terminal is the cooling control, connect to Y terminal; if
it is the common side of the transformer, connect to C terminal
7
Zone Valve/Damper Motor Systems
3-Wire, Zone Valve/Damper Motor System
2-Wire, Zone Valve/Damper Motor System
RH RC W Y B O G RH RC W Y B O GRH RC W Y B O G
RH RC W Y B O G RH RC W Y B O GRH RC W Y B O G
Zone 1 Zone 3Zone 2
Zone 1 Zone 3Zone 224 VAC
24 VAC
*
Use appropriate
size, single pole/
double throw relay
Note:
Differential temperature may need to be increased for zone/damper system
* **
SC2000 Wiring Diagrams
8
Heating/Cooling
4-Wire, Single Transformer
HOT
120 VAC 24 VAC
Pre-Installed Jumper
Transformer
Heating
Control
Cooling
Control
Fan
Control
T
H
E
R
M
O
S
T
A
T
RH
RC
W
Y
B
O
G
HOT RH
RC
W
Y
B
O
G
120 VAC 24 VAC
Remove
Pre-Installed
Jumper
Heating
Control
Cooling
Control
Fan
Control
(Heating)
Transformer
(Cooling)
Transformer
HOT
120 VAC 24 VAC
T
H
E
R
M
O
S
T
A
T
Note:
Both transformers must be in phase
5-Wire, Two Transformer
SC2000
RH RC RH RC
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