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2 Heat/2 Cool

Auto Changeover

Hardwire

SC 4811

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/2-Stage Cool Systems
• 2-Stage Heat Pump Systems
• Large Display With Backlight
• Selectable Fahrenheit or Celsius
• Compatible with Gas, Oil, or Electric
• SimpleSet™ Field Programming
• Status Indicator Light
• Relay Outputs  

(minimum voltage drop in thermostat)

• Remote Sensor Compatible
• Ideally Suited for: 

– 

Residential (New Construction/Replacement)  

– 

Light Commercial

Содержание SC 4811

Страница 1: ...ips and more visit us at www icmcontrols com Configurable 2 Stage Heat 2 Stage Cool Systems 2 Stage Heat Pump Systems Large Display With Backlight Selectable Fahrenheit or Celsius Compatible with Gas...

Страница 2: ...ol Systems 5 Single Compressor heat pump with electric backup 6 Dual Compressor heat pump with electric backup 6 Remote Sensor Installation Optional 7 Terminal Designator Descriptions 8 SC4811 Output...

Страница 3: ...Parts Diagram Configuration switch Reset switch Left system button Right fan button Down button Up button Field programming pins S1 S2 R C W O B G Y1 W2 Y2 RESET CONFIG FP...

Страница 4: ...8 30 VAC 1 amp maximum per terminal 3 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 2 stage cool heat pump gas oil ele...

Страница 5: ...ng 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 T...

Страница 6: ...h 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 yo...

Страница 7: ...Wiring Diagrams 120 VAC 24 VAC Heat 1 Cool 1 Heat 2 Cool 2 Fan Transformer Heat Cool Systems Optional remote or outdoor sensor outdoor sensor only reads outdoor temperature...

Страница 8: ...pump with electric backup Dual Compressor heat pump with electric backup 120 VAC 24 VAC Reversing Valve Compressor 1 Auxiliary Heat Compressor 2 Fan Transformer Optional remote or outdoor sensor Trans...

Страница 9: ...rminal on the thermostat and the S1 terminal on the remote sensor Wire 2 should run between the S2 terminal on the thermostat and the S2 terminal on the remote sensor Connect the shielding of the wire...

Страница 10: ...ems G Fan Terminal Designator Descriptions 1ST Cool 2ND Cool 1ST Heat 2ND Heat Heat Cool Y1 G YI Y2 G W1 G W1 W2 G Heat Pump One Compressor Y1 G O Y1 G O Y1 G B Y1 W2 G B Heat Pump Two Compressors Y1...

Страница 11: ...n Configuration Mode 3 Press the CONFIG button for 1 second while the SC4811 is in OFF mode To exit configuration mode press the CONFIG switch for 1 second Press the right button to advance to the nex...

Страница 12: ...en stage 1 turns on and when stage 2 turns on Press the up or down button to set differential value Press the right button to advance to the next screen 2 1st Stage Temperature Differential 1 F to 5 F...

Страница 13: ...utton to advance to the next screen 6 System Set for heat pump non heat pump reversing valve operation and number of compressors in your system Press the up or down button to select Press the right bu...

Страница 14: ...ustment of the set temperatures to the maximum heat set temperature selected in Step 9 and minimum cool set temperature selected in Step 10 Note The mode cannot be changed when the thermostat is locke...

Страница 15: ...as many as needed 2 6 maximum cycles hour Press the up or down button to select Press the right button to advance to the next screen 11 Room Temperature Offset 9 F to 9 F 4 5 C to 4 5 C Adjust to cali...

Страница 16: ...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...

Страница 17: ...cooling device is activated and the green indicator light configurable on the thermostat will turn on The SC4811 will stop outputting and the green light will turn off when the call for cooling is sa...

Страница 18: ...uration settings SYS left Used to change from OFF HEAT COOL and AUTO changeover modes FAN right Used to turn on and off the indoor fan UP SYS and FAN Held in simultaneously for 10 seconds to lock and...

Страница 19: ...he 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 t...

Страница 20: ...e 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 Cool...

Страница 21: ...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 Lockout Feature...

Страница 22: ...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 C...

Страница 23: ...ring call Turn status indicator function on see Configuration Mode Setting 17 Page 14 Room temperature is not correct Calibrate thermostat see Configuration Mode Setting 11 Page 13 If remote sensor is...

Страница 24: ...nty 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 produc...

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