background image

Setting the Time and Day of the Week

TODAY

MON

5.  Press the 

FAN

 (right) button once to select day of the week (TODAY flashing).

 

Press the 

up

 or 

down

 button to select current day of the week.

 

Note:

  At any time, press the 

SYS

 (left) button to return to the previous screen or 

press the 

FAN

 (right) button to advance to the next screen.

Press the 

PROG

 button in for 2 seconds to lock values into memory and return to the 

OFF mode or press the 

FAN

 (right) button once to enter programming.  

4.  Press the 

FAN

 (right) button once to select minutes (minutes flashing).

 

Press the 

up

 or 

down

 button to adjust the minutes.

3.  Time displays (hour flashing).
 

Press the 

up

 or 

down

 button to adjust the hour.

2.  Press and hold the 

PROG

 button (

SYS

 (left) and 

FAN

 (right) buttons pressed 

simultaneously) in for 6 seconds.

1.  Press the 

SYS

 (left) button until you are in the OFF mode.

The time and day of the week must be set for your program schedule to operate correctly.

Testing the Thermostat

Once the thermostat is configured, it should be thoroughly tested.

 

CAUTION!

Do not energize the air conditioning system when the outdoor temperature is below 50 
degrees. It can result in equipment damage or personal injury.

Heat Test

1. Press 

SYS

 (left) button until heat mode is displayed.

2. Adjust the set temperature so it is 5 degrees above the room temperature.
3. Heat should come on within a few seconds. Red LED may turn on.
4. Adjust the set temperature 2 degrees below the room temperature and the heat 

should turn off. There may be a fan delay on your system.

 

 

Note:

 

For heat pumps, there is a four-minute delay to protect your compressor after it turns off. To bypass the 
compressor time delay, go to OFF mode for 5 seconds.

PM

Cool Test

1. Press 

SYS

 (left) button until cool mode is displayed. 

2. Adjust set temperature so it is 5 degrees below room temperature.
3. A/C should come on within a few seconds. Green LED may turn ON.
4. Adjust the set temperature 2 degrees above the room temperature and the A/C 

should turn off. There may be a fan delay on your system.

 

 

Note:

 

There is a four-minute time delay to protect the compressor after it turns off. To bypass the compressor 
time delay, go to OFF mode for 5 seconds.

PM

Fan Test

1.  Press 

FAN

 (right) button. Fan displays. Indoor fan turns ON.

2.  Press 

FAN

 (right) button. Indoor fan turns OFF.

PM

OFF

Program Mode

•  In this mode, the program function is on (PROG displays), and the thermostat will automatically be controlled by 

the set program schedule. Program mode can function with heat mode, cool mode, or heat & cool mode. The 
program schedule can  be overridden by changing the set temperature (up or down button). After 2 hours, the 
program schedule will automatically be resumed. To manually return to the program schedule, press the PROG 
button twice.

PROG

PROG

PROG

LIAF063-1

Mode of Operation

The 

SC5811

 is a programmable, manual or auto changeover, 2-stage heat, 2-stage cool thermostat. It functions 

with air conditioning, heat pumps, gas, oil or electric heat systems. An outdoor sensor can be used to monitor the 
outdoor temperature.
The thermostat activates the heating appliance when the room temperature is below the set heat temperature 
(by the differential temperature) and the red indicator light (configurable) on the thermostat will light. The 

SC5811

 

will stop outputting and the red light will turn off when the call for heat has been satisfied. With heat pumps, the 
thermostat will not let the compressor come on for 4 minutes after it turns off. This protects your compressor.
When the room temperature is greater than the set cool temperature (by the differential temperature), the cooling 
device is activated and the green indicator light (configurable) on the thermostat will turn on. The 

SC5811

 will 

stop outputting and the green light will turn off when the call for cooling is satisfied. The thermostat will not let the 
compressor come on for 4 minutes after it turns off. This protects your compressor.
The 

SC5811

 has five possible operating modes: 

OFF

Heat

Cool

Heat & Cool

, and 

Program

 mode. In off mode, 

the thermostat will not turn on heating or cooling devices. The manual fan can be turned on in all operating modes 
using the fan button. In heat mode, the thermostat controls the heating system. In the cool mode, the thermostat 
controls the cooling system. In heat & cool mode, the thermostat controls both the heating and cooling systems. In 
program mode, the thermostat will automatically be controlled by the set program. Program mode can function with 
heat mode, cool mode, or heat & cool mode. The clock display alternates with the set temperature display for heat & 
cool mode.
The program schedule can be overridden by changing the set temperature (up or down button). This puts the 

SC5811

 thermostat into a 2-hour temporary hold. After 2 hours, it will automatically return to the program schedule.

The programmable fan feature can be used to recirculate air while in 

Program

 mode. It is activated during the 

program schedule set up.
The 

SC5811

 also has a button lockout feature. This enables the thermostat to be set to the proper mode and 

temperature and locked so it cannot be tampered with.

Operating Modes

There are five possible operating modes for the 

SC5811

. Off, Cool, Heat, and Cool & Heat modes are accessed 

by pressing the 

SYS

 (left) button. Program mode is accessed by pressing the 

SYS

 (left) and 

FAN

 (right) buttons 

simultaneously.

OFF Mode

•  In this mode, the thermostat will not turn on the heating or cooling devices
 

 

Note:

 

The indoor fan can be turned on manually in every operating mode by 
pressing the 

FAN

 (right) button. The word 

FAN 

shows on the display and 

the fan icon   appears when the fan operates.

OFF

Heat Mode

•  In this mode, the thermostat controls the heating system. When the heat outputs, 

the flame icon   apprears on the display.

 

 

Note:

 

For heat pumps, there is a four minute delay for your compressor to 
restart after it has turned off. To bypass the compressor time delay, go to 
OFF mode for 5 seconds.

Cool Mode

•  In this mode, the thermostat controls the cooling system. When the cooling 

outputs, the snowflake icon   apprears on the display.

 

 

Note:

 There is a four minute delay for your compressor to restart after it has 

turned off. To bypass the compressor time delay, go to OFF mode for 5 
seconds.

Cool and Heat Mode (Auto Changeover)

•  In this mode, the thermostat controls the cooling and heating systems, automatically 

changing over from one to the other as needed.

•  The timing display alternates with the set temperature every 10 seconds in the cool 

and heat mode.

Emergency Heat Mode (Heat pump systems only)

•  In emergency heat mode, the heat pump system will be disabled and auxiliary 

heat will become the primary source of heat.

Button Functions

UP

 – Used to increase the time, set temperatures and to adjust configuration 

settings. 

DOWN

 – Used to decrease the time, set temperatures and to adjust 

configuration settings.

SYS (left)

 –  Used to change from OFF, HEAT, EMERGENCY HEAT, COOL 

and AUTO changeover modes

FAN (right)

 – Used to turn on and off the indoor fan.

PROG (SYS and FAN)

 – Used to change from program operation to manual operation.

UP and PROG

 – Held in simultaneously for 10 seconds to lock and unlock the thermostat.

DOWN and SYS

 –  Pressed simultaneously to display outdoor remote temperature if remote sensor is 

connected.

PROG

FAN

 

(right)

Down

 

button

Up

 

button

SYS

tem 

(left)

15. 

Status Indicator Light

 (Led 0, 1, 2) 

 

0 = Status indicator never on

 

1 = Status indicator on with first stage

 

2 = Status indicator on with second stage

 

Press the 

up

 or 

down

 button to select.

 

Press the 

CONFIG

 button for 2 seconds to exit configuration.

Programming

SUN MON TUE WED THU FRI SAT

PROG

From this screen you have 2 options: 
1.  Press the 

FAN

 (right) button to begin programming all 7 days at one time, or

2.  Press the up button to see the other programming options.

  

Note:

 The days of the week shown on the display will be programmed simultaneously. 

 

The screens are listed below.

Screen 1

SUN

MON

TUE

WED

THU

FRI

SAT

Screen 2

MON

TUE

WED

THU

FRI

Screen 3

MON

Screen 4

TUE

Screen 5

WED

Screen 6

THU

Screen 7

FRI

Screen 8

SUN

SAT

Screen 9

SAT

Screen 10

SUN

Program Overview

The 

SC5811

 programmable thermostat has four periods (MORN, DAY, EVE, NITE) that are customizable for each 

day of the week. Each period will have a start time, heat temperature, cool temperature and programmable fan 
option. The 

SC5811

 monitors the day and time, while maintaining the specific conditions you have chosen for each 

period in your program.

Setting the program schedule:
1.  Press the 

SYS

 (left) button until you are in 

OFF

 mode.

2.  Press and hold the 

PROG

 button (

SYS

 and 

FAN

 buttons pressed simultaneously) for 6 seconds.

3.  Press the 

FAN

 (right) button 3 times.

4.  SUN thru SAT are blinking.

Lockout Feature

The 

SC5811

 has a button lockout feature so the mode cannot be changed and the 

temperature adjustment is limited. Select the appropriate lockout from Configuration 
Mode Settings (Step 8) of this guide.
To activate the LOCK feature:
1.  Simultaneously press the 

SYS

FAN

 and 

UP

 buttons for 10 seconds.

2.   will display and the lockout function will be enabled.
To deactivate the LOCK feature, repeat steps 1 and 2 above.

From any of the screens on above, you can press the 

FAN

 (right) button to begin entering your program schedule. 

The days shown on the display will all be programmed simultaneously.

Once the 

FAN

 (right) button is pressed, 

MORN

 blinks.

Use the 

up

 or 

down

 button to select a different period (

MORN

DAY

EVE

NITE

).

Press 

FAN

 (right) button to advance to the next screen. Transition time 

hour

 blinks.

Use the 

up

 or 

down

 button to select a different hour. 

Press 

FAN

 (right) button to advance to the next screen. Transition time 

minutes

 blink.

Use the 

up

 or 

down

 button to select different minutes. 

Press 

FAN

 (right) button to advance to the next screen. 

Heat set temperature

 displays.

Use the 

up

 or 

down

 button to adjust the heat set temperature.

Press 

FAN

 (right) button to advance to the next screen. 

Cool set temperature

 displays.

Use the 

up

 or 

down

 button to adjust the cool set temperature.

Press 

FAN

 (right) button to advance to the next screen. 

Programmable fan

 screen displays.

Use the 

up

 or 

down

 button to select:

Choose: 

Off

  – Programmable fan disabled  >OR< 

On

 – Indoor fan on continuously

  

Note:

 Programmable fan operates in Program mode only.

Repeat above steps to program the four periods per day.

When the program schedule is complete, press and hold the 

PROG

 button (

SYS

 and 

FAN

 buttons pressed 

simultaneously) in for 2 seconds to return to the 

OFF

 mode.

Symptom

Remedy

No display

Check for 24 VAC at thermostat; display is blank when 24 VAC is not 
present
Time and day of week must be reset after extended power loss

System fan does not come on properly

Verify wiring is correct, check Gas/Electric Configuration (see Setting 6)

All thermostat buttons are inoperative

Verify 24 VAC is present; unit locks out when 24 VAC is not present

No response with first button press

First button press activates backlight only

Program schedule activates at the 
wrong time

Check time (AM/PM) set on thermostat (see Setting the Time)

Thermostat turns on and off too 
frequently

Adjust temperature differential (see Configuration Mode Settings 2 & 3)

Thermostat does not follow program

Verify it is operating in program mode (PROG displays); check time 
(AM/PM); check if in 2 hour program override

Fan runs continuously

Press FAN (right) button to turn fan off

Fan turns on occasionally

Program Mode: 

Check programmable 

fan setting in program schedule

Status indicator light not on during call

Turn status indicator function on (see Configuration Mode Setting 15)

Room temperature is not correct

Calibrate thermostat (see Configuration Mode Setting 11) 
If remote sensor is used, check S1 and S2 terminal connections

displays when any button is 
pressed

Thermostat has the button lockout function activated  
(see Lockout Feature and Configuration Mode Setting 8)

on display instead of room 
temperature

Check for a bad connection at S1 and S2 terminals, if used 
(see Configuration Mode Setting 13)

Heat or Cool not coming on

Verify wiring is correct, gently pull on each wire to verify there is a good 
connection at terminal block

Problem not listed above

Press Reset button once*

* Reset Button Function

: Time and day are reset, configuration and program settings are unchanged.

Troubleshooting

SimpleSet

TM

 Field Programming

This feature is used for transferring configuration and program schedule from the master to the target thermostat. 
All thermostats for a job can be mounted and powered up. Configure and program one thermostat. This will be the 
master. The master will be used to copy the program to the rest of the thermostats.

Preparing the master to Send:

1. The master must be powered with 24 VAC.
2. Verify the master thermostat is in 

OFF

 mode.

3. Press 

SYS

 (left) button until 

OFF

 mode displays.

4. Remove cover of the master thermostat by gently pulling near one of the corners at the top 

of the thermostat.

5. Press the 

up

 and 

down

 buttons and 

CONFIG

 switch simultaneously for 5 seconds.

6. The 

OUT

 screen displays indicating the master thermostat is ready to transfer data.

 

 

Note:

 

Press the 

up

 and 

down

 buttons and 

CONFIG

 switch simultaneously for 5 seconds 

to exit from data transfer mode and to return the master to the 

OFF

 mode.

7. Turn off power to the master and remove it from the wall.
8. Connect the master to the target using the 3 wire connector. Attach one end to the Master’s 

FP pins and the other end to the Target’s FP pins.

 

 

Note:

 

Target thermostat must be powered with 24 VAC for field 
programming to occur.

When the connection has been made correctly, the master thermostat will power up and the target will count from 5 
down to 1. It will then display the 

LOCK

 confirming the data has been saved in memory.

When all target thermostats have been completed, reinstall the master thermostat.
Press the 

up

 and 

down

 buttons and the 

CONFIG

 switch simultaneously for 5 seconds to exit from the data transfer 

mode and to return the master thermostat to the 

OFF

 mode.

OFF

FP pins

S1 S2 R

C

W

O/B

G

Y1 W2

W3

Y2

RESET

CONFIG

FP

Requires SimpleSet

TM

 Transfer Cable (ACC-WIH21)

THURSDAY

4

MORN

DAY

EVE

NITE

HEAT

HEAT

HEAT

HEAT

COOL

COOL

COOL

COOL

FAN

FAN

FAN

FAN

FRIDAY

5

MORN

DAY

EVE

NITE

HEAT

HEAT

HEAT

HEAT

COOL

COOL

COOL

COOL

FAN

FAN

FAN

FAN

SATURDAY

6

MORN

DAY

EVE

NITE

HEAT

HEAT

HEAT

HEAT

COOL

COOL

COOL

COOL

FAN

FAN

FAN

FAN

SUNDAY

7

MORN

DAY

EVE

NITE

HEAT

HEAT

HEAT

HEAT

COOL

COOL

COOL

COOL

FAN

FAN

FAN

FAN

Factory Preprogramming

MORN

6:00 AM

DAY

8:00 AM

EVE

6:00 PM

NITE

10:00 PM

HEAT

70°F

HEAT

62°F

HEAT

70°F

HEAT

62°F

COOL

78°F

COOL

85°F

COOL

78°F

COOL

82°F

FAN

Off

FAN

Off

FAN

Off

FAN

Off

MONDAY

thru

SUNDAY

Personal Program Schedule

MORN

DAY

EVE

NITE

HEAT

HEAT

HEAT

HEAT

COOL

COOL

COOL

COOL

FAN

FAN

FAN

FAN

MONDAY

1

TUESDAY

2

MORN

DAY

EVE

NITE

HEAT

HEAT

HEAT

HEAT

COOL

COOL

COOL

COOL

FAN

FAN

FAN

FAN

WEDNESDAY

3

MORN

DAY

EVE

NITE

HEAT

HEAT

HEAT

HEAT

COOL

COOL

COOL

COOL

FAN

FAN

FAN

FAN

The 

SC5811

 comes preprogrammed with the following schedule:

Use the following personal program schedule to record your settings:

Patent No. 424,953

7313 William Barry Blvd., North Syracuse,  NY  13212

(

Toll Free) 800-365-5525     (Phone) 315-233-5266     (Fax) 315-233-5276

www.icmcontrols.com

FIVE-YEAR LIMITED WARRANTY

The Seller warrants its products against defects in material or workmanship for a period of five (5) years from the 
date of manufacture. The liability of the Seller is limited, at its option, to repair, replace or issue a non-case credit for 
the purchase prices of the goods which are provided to be defective. The warranty and remedies set forth herein 
do not apply to any goods or parts thereof which have been subjected to misuse including any use or application 
in violation of the Seller’s instructions, neglect, tampering, improper storage, incorrect installation or servicing not 
performed by the Seller. In order to permit the Seller to properly administer the warranty, the Buyer shall: 1) Notify 
the Seller promptly of any claim, submitting date code information or any other pertinent data as requested by the 
Seller. 2) Permit the Seller to inspect and test the product claimed to be defective. Items claimed to be defective 
and are determined by Seller to be non-defective are subject to a $30.00 per hour inspection fee. This warranty 
constitutes the Seller’s sole liability hereunder and is in lieu of any other warranty expressed, implied or statutory. 
Unless otherwise stated in writing, Seller makes no warranty that the goods depicted or described herein are fit for 
any particular purpose.

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