ICM Controls SC 2311 Istruzioni generali

2 Heat/1 Cool

Manual Changeover

Hardwired

SC 2311

Non-Programmable Electronic Thermostat

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

• Conﬁgurable

• 2-Stage Heat/1-Stage Cool Systems

• Heat Pump Systems

• Backlit Display

• Field Temperature Calibration

• Filter Check

• Status Indicator Light

• Relay Outputs

(minimum voltage drop in thermostat)

• Ideally Suited for:

– Residential (New Construction/Replacement)

– Light Commercial

Table of Contents

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

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

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

Package Contents/Tools Required...............................................................................................2

To Remove Existing Thermostat ................................................................................................3

To Install Thermostat ..................................................................................................................3

Terminal Designator Descriptions................................................................................................5

SC2311 Output Chart..................................................................................................................5

Wiring Diagrams..........................................................................................................................6

Wiring Diagram Conversions .......................................................................................................9

Conﬁguration Mode...................................................................................................................19

Testing the Thermostat ............................................................................................................22

Mode of Operation ....................................................................................................................23

Operating Modes ......................................................................................................................24

Troubleshooting ........................................................................................................................25

Parts Diagram

R12

O/B

Y W2 E

Specications

Electrical rating: • 24 VAC (18-30 VAC)

• 1 amp maximum per terminal

• 4 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: 2-stage heat, 1-stage cool, heat pump, gas, oil, electric

Timing:

Anti-short Cycle:

5 minutes

Backlight Operation:

13 seconds after mode change or button press

Terminations: R, C, W1/O/B, Y, W2, E, G

Important Safety Information

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 includes: SimpleComfort®2311 programmable thermostat on base, labeled thermostat cover,

wiring labels, screws and wall anchors, Owner’s Manual, Installation, Operation and

Application Guide.

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

Package Contents/Tools Required

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.

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.

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.

To Install Thermostat

To Install Thermostat (continued)

2. To remove cover, insert and twist a coin or screwdriver in the slots on the sides of the thermostat.

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 wire opening.

9. Use supplied screws to mount thermostat base to wall.

10. Insert stripped, labeled wires in matching wire terminals. See “Wiring Diagrams” section of this

manual (Pages 6-18).

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.

12. Seal hole for wires behind thermostat with non-ﬂammable insulation or putty, or use an ICM insulated

wall plate (ACC-WP01).

13. Replace cover on thermostat by snapping it in place.

14. Turn on power to the system at the main service panel.

15. Test thermostat operation as described in “Testing the Thermostat” (Page 22).

R – 24 VAC hot

C – 24 VAC common

W1/O/B – Conﬁgurable

W1 – 1st stage heat for non-hp systems

O – cool active reversing valve

B – heat active reversing valve

Y – 1st stage cool, 1st stage heat for heat pumps

W2 – 2nd stage heat for heat pump, non-heat pump, and emergency heat

E – 1st stage heat for Emergency Heat operation

G – Fan

Terminal Designator Descriptions

The SC2311 thermostat is conﬁgurable for different systems. The conﬁguration directly effects the outputs.

Use the output chart to correctly conﬁgure and wire the thermostat to your system.

1ST Cool 1ST Heat 2ND Heat

Heat/Cool Y,G W1, G* W1, W2, G*

Heat Pump (One Compressor) Y,G,O Y, G, B Y, W2, G, B

Emergency Heat HP N/A E, G E, W2, G

* G not energized when conﬁgured as a gas/oil system

SC2311 Output Chart

First

Cooling Control

Second

Heating Control

First

Cooling Control

First

Heating Control

Wiring Diagrams

Fan

Control

Fan

Control

Second

Heating Control

First

Heating Control

Second

Heating Control

First

Heating Control

Single Transformer Single Transformer

Fan

Control

Single Compressor

2nd Stage

Heat

Reversing

Valve

Compressor

Emergency

Heat

Fan

Control

Indice

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