Trane 52 Programmable Thermostat Manual

Set Clock/Day/Schedule

9
Auto Changeover (Setup Function 12)
Auto Changeover is a feature used in  
climates where both air conditioning and 
heating are used on the same day. When the 
system is set to Auto, the Comfort Control 
automatically selects heating or cooling 
depending on the indoor temperature.
Heat and cool settings must be at least 3 
degrees apart. The Comfort Control will  
automatically adjust settings to maintain this 
3-degree separation (called “deadband”). 
The 3-degree separation...

10
Quick reference to controls
Digital display screenBattery holder 
Temperature buttons Press to adjust temperature  settings 
Hold button Press to override programmed temperature control 
Function buttons Press to select the function displayed just above each button. (Functions change depending on the task.)
Quick reference to display screen
Current inside temperature Low battery warning Current time/day 
Current program period Wake/Leave/Return/Sleep
Temperature setting
System status  On when...

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In case of difficulty
If you have difficulty with your Comfort Control, please try the suggestions below. 
Most problems can be corrected quickly and easily. 
Display is blank• Check circuit breaker and reset if necessary.
• Make sure power switch at heating & cooling system is on.
• Make sure furnace door is closed securely.
Temperature  settings do not change
Make sure heating and cooling temperatures are set to acceptable ranges:
• Heat:  0° to 90°F (.5° to 32°C).
• Cool:  0° to...

In case of difficulty
“Cool On” or “Heat On”  is flashing
• Compressor protection timeout is engaged. Wait 5 minutes for the  system to restart safely, without damage to the compressor.
Heating equip-ment is running in cool mode
• Check Installer Setup, Function 1 (System Type), to make sure it is set to match the installed heating/cooling equipment (see page  ).
Cannot change  system setting to “Heat”
• Check Installer Setup, Function 1 (System Type), to make sure it is set to match the installed...

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