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Installation 2
Wiring Connections 2
Thermostat Quick Reference 3
Installer Configuration Menu 4
Operating Your Thermostat 7
Programming 7
Troubleshooting 11
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Big Blue Single Stage Thermostat withBig Blue Single Stage Thermostat with
Big Blue Single Stage Thermostat withBig Blue Single Stage Thermostat with
Big Blue Single Stage Thermostat with
Automatic Heat/Cool Changeover OptionAutomatic Heat/Cool Changeover Option
Automatic Heat/Cool Changeover OptionAutomatic Heat/Cool Changeover Option
Automatic Heat/Cool Changeover Option
PART NO. 37-6814BPART NO. 37-6814B
PART NO. 37-6814BPART NO. 37-6814B
PART NO. 37-6814B
Replaces 37-6814A
0902
Single Stage Installation and OperatingSingle Stage Installation and Operating
Single Stage Installation and OperatingSingle Stage Installation and Operating
Single Stage Installation and Operating
Instructions for Model:Instructions for Model:
Instructions for Model:Instructions for Model:
Instructions for Model:
APPLICATIONSAPPLICATIONS
APPLICATIONSAPPLICATIONS
APPLICATIONS
DescriptionDescription
DescriptionDescription
Description
Heat Pump (No Aux. or Emergency Heat) No
Heat Pump (with Aux. or Emergency Heat) No
Systems with up to 3 Stages Heat, 2 Stages Cool No
Heat Only Systems Yes
Millivolt Heat Only Systems – Floor or Wall Furnaces Yes
Cool Only Systems Yes
Gas or Oil Heat Yes
Electric Furnace Yes
Hydronic (Hot Water) Zone Heat – 2 Wires Yes
Hydronic (Hot Water) Zone Heat – 3 Wires Yes
Wired Remote Temperature Sensor (Indoor/Outdoor) Yes
Dual Fuel Feature (Heat Pump Mode) No
THERMOSTAT APPLICATION GUIDETHERMOSTAT APPLICATION GUIDE
THERMOSTAT APPLICATION GUIDETHERMOSTAT APPLICATION GUIDE
THERMOSTAT APPLICATION GUIDE
1F97-1277 Touchscreen Thermostat1F97-1277 Touchscreen Thermostat
1F97-1277 Touchscreen Thermostat1F97-1277 Touchscreen Thermostat
1F97-1277 Touchscreen Thermostat
SPECIFICATIONSSPECIFICATIONS
SPECIFICATIONSSPECIFICATIONS
SPECIFICATIONS
Electrical Rating:
Battery Power . . . . . . . . . . . . . . . . . . . . . . . . . mV to 30 VAC, NEC Class II, 50/60 Hz or DC
Input-Hardwire . . . . . . . . . . . . . . . . . . . . . . . . 20 to 30 VAC
Terminal Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5A per terminal, 2.5A maximum all terminals combined
Setpoint Range . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 to 99°F (7 to 32°C)
Differential (Single Stage) . . . . . . . . . . . . . . . . . . . Heat 0.6°F; Cool 1.2°F
Differential (Multi-Stage) . . . . . . . . . . . . . . . . . . . . Heat 0.6°F; Cool 1.2°F
Differential (Heat Pump) . . . . . . . . . . . . . . . . . . . . Heat 1.2°F; Cool 1.5°F
Operating Ambient . . . . . . . . . . . . . . . . . . . . . . . . . 32°F to +105°F (0 to +41°C)
Operating Humidity . . . . . . . . . . . . . . . . . . . . . . . . 90% non-condensing max.
Shipping Temperature Range . . . . . . . . . . . . . . . . -4 to +150°F (-20 to +65°C)
Dimensions Thermostat . . . . . . . . . . . . . . . . . . . . . 4.6"H x 5.9"W x 1.2"D
To prevent electrical shock and/or equipment dam-To prevent electrical shock and/or equipment dam-
To prevent electrical shock and/or equipment dam-To prevent electrical shock and/or equipment dam-
To prevent electrical shock and/or equipment dam-
age, disconnect electric power to system at main fuseage, disconnect electric power to system at main fuse
age, disconnect electric power to system at main fuseage, disconnect electric power to system at main fuse
age, disconnect electric power to system at main fuse
or circuit breaker box until installation is complete.or circuit breaker box until installation is complete.
or circuit breaker box until installation is complete.or circuit breaker box until installation is complete.
or circuit breaker box until installation is complete.
CAUTION
!
ATTENTION: MERCURY NOTICEATTENTION: MERCURY NOTICE
ATTENTION: MERCURY NOTICEATTENTION: MERCURY NOTICE
ATTENTION: MERCURY NOTICE
This product does not contain mercury. However, this
product may replace a product that contains mercury.
Mercury and products containing mercury must not be
discarded in household trash. Do not touch any spilled
mercury. Wearing non-absorbent gloves, clean up any
spilled mercury and place in a sealed container. For proper
disposal of a product containing mercury or a sealed
container of spilled mercury, place it in a suitable shipping
container. Refer to
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send the product containing mercury.
IndexIndex
IndexIndex
Index
PagePage
PagePage
Page
ModelModel
ModelModel
Model
Programming ChoicesProgramming Choices
Programming ChoicesProgramming Choices
Programming Choices
1F97-12771F97-1277
1F97-12771F97-1277
1F97-1277
Non-Programmable 5/1/1 Day 7 Day
Save these instructions for future use!Save these instructions for future use!
Save these instructions for future use!Save these instructions for future use!
Save these instructions for future use!
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONSFAILURE TO READ AND FOLLOW ALL INSTRUCTIONS
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONSFAILURE TO READ AND FOLLOW ALL INSTRUCTIONS
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS
CAREFULLY BEFORE INSTALLING OR OPERATING THISCAREFULLY BEFORE INSTALLING OR OPERATING THIS
CAREFULLY BEFORE INSTALLING OR OPERATING THISCAREFULLY BEFORE INSTALLING OR OPERATING THIS
CAREFULLY BEFORE INSTALLING OR OPERATING THIS
CONTROL COULD CAUSE PERSONAL INJURY AND/ORCONTROL COULD CAUSE PERSONAL INJURY AND/OR
CONTROL COULD CAUSE PERSONAL INJURY AND/ORCONTROL COULD CAUSE PERSONAL INJURY AND/OR
CONTROL COULD CAUSE PERSONAL INJURY AND/OR
PROPERTY DAMAGE.PROPERTY DAMAGE.
PROPERTY DAMAGE.PROPERTY DAMAGE.
PROPERTY DAMAGE.