ICM Controls SC 2300 Installation, Operation & Application Manual

Non-Programmable

SC 2300

Manual Changeover

Non-Programmable Electronic Thermostat

• Up to two-stage heat / two-stage cool

• Mercury-free, environmentally safe

• For use with 24 VAC systems

• Non-heat pump

• Manual Changeover

• Compatible with Gas, Oil, or Electric

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

2 Heat/2 Cool

Table of Contents

Parts Diagram .............................................................................................................................1

Specifications ..............................................................................................................................2

Important Safety Information .....................................................................................................2

Package Contents/Tools Required ............................................................................................... 3

General Description ..................................................................................................................... 3

Features/Benefits........................................................................................................................3

To Remove Existing Thermostat ................................................................................................ 4

To Install Thermostat .................................................................................................................. 4

Installing and Changing Batteries ................................................................................................ 6

Replacing Wiring Labels ..............................................................................................................6

Operation .................................................................................................................................... 7

Setting the Setpoint Temperature .............................................................................................. 7

Setting a New Temperature Differential ...................................................................................... 7

Changing Fahrenheit to Celsius ................................................................................................... 8

Starting the Thermostat ............................................................................................................. 8

LED Indicator ..............................................................................................................................9

Wiring Diagrams ........................................................................................................................ 10

Troubleshooting ........................................................................................................................ 12

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.

Celsius/
Fahrenheit
Jumper

F–C

Parts Diagram

Up Button Down Button

RH

CRCY2 W2 Y1 W1G

2300

Battery
Compartment

Gas/Electric
Switch

ONAUTO

Mode Switch or

Cool/Off/Heat Switch

Fan Switch

1

Specications

Input:

• Voltage: 24 VAC (18-30 VAC)

• DC Power: 3.0 VDC (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)

• System configurations: Multi-stage – Two-stage heat or two-stage cool

• Terminations: RH, RC, W1, W2, Y1, Y2, G, C

Room temperature

setpoint

Room temperature

Low battery indicator

Temperature

differential setting

SET
ROOM
LO BAT
DIFF

Important Safety Information

• Always turn off power at the main power source by unscrewing fuse or switching circuit breaker to the off

position before installing, removing, cleaning, or servicing this thermostat

• Read all of the information in this manual before installing this thermostat

• This thermostat should be installed only by a professional contractor

• This is a 24 VAC low-voltage thermostat; do not install on voltages higher than 30 VAC

• All wiring must conform to local and national building and electrical codes and ordinances

• Do not short (jumper) across terminals on the gas valve or at the system control to test installation; this will

damage the thermostat and void the warranty

• Do not switch system to cool if the temperature is below 50°F (10°C) This can damage the air conditioning

system and may cause personal injury

• The thermostat will not control your heating/air conditioning system without power; it requires two charged

“AA” batteries for thermostat operation and a continuous 24 VAC circuit for proper system control

• Replace batteries every year or when the low battery indicator appears on the ther mostat’s display

• Use this thermostat only as described in this manual

2

Package Contents/Tools Required

Package includes: SimpleComfort
labels, screws and wall anchors, Installation, Operation and Application Guide.

Tools required for installation: Drill with 3/16” bit, hammer, screwdriver.

®

2300 non-programmable thermostat on base, thermostat cover, wiring

General Description

The SimpleComfort
up to 2-stage heat/2-stage cool. It will operate with multi-stage systems that are manual changeover.
There are no optional items required for standard installations. This thermostat is also compatible as a
master thermostat in zoned system applications.

The SimpleComfort
properly, this thermostat can reduce heating and cooling costs throughout the year.

®

2300 is intended to operate and is compatible with 24 VAC residential systems with

®

2300 will automatically control the heat and/or air conditioning system. When used

Features/Benets

• The SimpleComfort® 2300 thermostat is a digital, mercury-free, non-programmable, electronic thermostat

• Compatible with multi-stage heating/cooling systems; works with gas, oil, or electric systems

• Compatible as a master thermostat in zoned system applications

• Visual low battery indication

• Automatic Heating System Shutdown: If temperature exceeds 90°F (32°C)

• System Customization: Choose Fahrenheit or Celsius display; three available temperature differential

settings

3