Contents
Owner’s Guide
Programmable Thermostat
TH303
Overview
Table of contents
Installation
Configuration
SUPPLIED PARTS
About your new thermostat
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Quick reference to controls
TH303
Quick reference to screen display
Heating intensity indicator No icon appears when heating is off
Setpoint temperature see page Ambient temperature
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Removing the faceplate
TH303
Wiring
2-wire installation
4-wire installation
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Installing the thermostat
TH303
Quick Start-up / Setting the clock and date
and is now controlling the temperature
Your new thermostat is already preprogrammed
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Automatic Auto mode
Temporary override
TH303
Manual Man mode
Set temperature
To place the thermostat in Manual Man mode
Away mode
TH303
Countdown mode
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Default schedule
Temperature
Temperature
To modify the schedule, proceed as follows
Modifying the schedule
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Display
Configuration parameters
Default setting
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1 Fan
Configuration parameters cont’d
2 Away temperature
TH303
temperature
Configuration procedure
Configuration Menu
temperature
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In case of difficulty
PROBLEM
SOLUTIONS
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Customer assistance
To reset the thermostat, press both Down and Select buttons and hold
Minimum load
Specifications
Setpoint/display resolution ±0.5C ±1F
TH303
400-303-000-C
3-year limited warranty