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THERMOSTAT OPERATION

3

Caution:

 

When the battery icon     
appears replace your AA 
batteries immediately. Failure 
to do so may result in your 
heating & cooling system 
becoming inoperable. 

Easy to use controls

LCD Display: 
See page 2 for details about this display
read out and icons.

1

2

3

4

5

Glow in the Dark Light Button:
The glow in the dark light button will 
self illuminate for several hours after 
exposure to ambient light. This button 
turns on the display light when pressed.

Temperature Setpoint Buttons:
Press the 

+

 or 

buttons to select the 

desired room temperature.

6 User Keys:

Use these buttons to set up your 
programming options. Refer to the 
next page for instructions.

Fan Key:
Select 

ON or AUTO. The ON key will run 

the fan continuously. The 

AUTO key will 

cycle the fan on only when the heating or 
cooling system is on.

A Note About Programmable Fan:
The programmable fan feature will run the 
fan continuously during any time period it 
is programmed to be on. This is the best 
way to keep the air circulated and to 
eliminate hot & cold spots in your building.

System Key:
Selects the operation mode of your 
HVAC system. Selecting 

HEAT 

turns on the heat mode. Selecting 
COOL turns on the air conditioning 
mode. Selecting 

OFF turns both 

heating and cooling off. Selecting 
AUTO will turn the HEAT or COOL 
on as needed.

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2

3

4

5

A Note About Auto Changeover:

 

Auto changeover will switch between 
heating and cooling as needed. It is very 
important to make sure the cooling setpoint 
temperature is at least 5º above the heating 
setpoint temperature and that the heating 
setpoint temperature is at least 5º below 
the cooling setpoint temperature.

Summary of Contents for True Comfort IIII TT-S-915

Page 1: ...was designed to the highest reliability and ease of use standards Thank you for choosing Pro1 U S Registered Trademark Patents pending Copyright 2010 Pro1 IAQ Inc All rights reserved Rev 0950 Table of Contents Page 1 Need Help For assistance with this product please visit http www pro1iaq com or call Pro1 Customer Care toll free at 888 Pro1iaq 776 1427 during normal business hours Mon Fri 9 AM 6 P...

Page 2: ... cool is on LCD 1 Displays the user selectable setpoint temperature HOLD is displayed when thermostat program is permanently overridden System operation indicators The COOL HEAT or FAN icon will display when the COOL HEAT or FAN is on EM HEAT is only used if heat pump is inoperable NOTE The compressor delay feature is active if these icons are flashing The compressor will not turn on until the 5 m...

Page 3: ...the fan continuously The AUTO key will cycle the fan on only when the heating or cooling system is on A Note About Programmable Fan The programmable fan feature will run the fan continuously during any time period it is programmed to be on This is the best way to keep the air circulated and to eliminate hot cold spots in your building System Key Selects the operation mode of your HVAC system Selec...

Page 4: ...omize your 5 1 1 program schedule follow these steps Weekday Saturday Sunday Select HEAT or COOL using the SYSTEM key Note You have to program heat and cool each separately Press MENU Press SET SCHEDULE Note Monday Friday is displayed and the WAKE icon is shown You are now programming the WAKE time period for the weekday setting Use the or key below the time setting to make your time selection for...

Page 5: ...lay after your system has run long enough to require an air filter change Resetting the filter change reminder When FILT reminder is displayed you should change your air filter and reset the reminder by pressing the CLEAN key for 3 seconds FILT will leave the display when reset Hold down CLEAN for 3 seconds to reset filter reminder To customize your 7 day program schedule follow these steps Select...

Page 6: ...____ Address ____________________________ ____________________________ City ____________________________ State ____________________________ Zip _____________________ Thermostat Model _____________________ Date Installed _____________________ 6 Contact Us Information Pro1 IAQ Warranty Registration 1 2 Pro1 IAQ Inc 1111 S Glenstone Suite 2 100 Springfield MO 65804 Toll free 1 888 Pro1iaq 776 1427 To...

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