Caution
Equipment damage hazard. Do not operate the cooling system if the outdoor temperature is below 50 ˚F (10 ˚C) to prevent possible compressor damage.
Important
The low battery indicator is displayed when the AA battery power is low. If the user fails to replace the battery within 21 days, the screen will only show the low battery indicator but maintain all functionality. If the user fails to replace the batteries after an additional 21 days (days 22-42 since the first “low battery” display) the setpoints will change to 55˚F (Heating) and 85˚F (Cooling). If the user adjusts the setpoint away from either of these, it will hold for 4 hours and then return to either 55˚F or 85˚F. After day 63 the batteries must be replaced immediately to avoid freezing or overheating because the thermostat will shut the unit off until the batteries are changed.
Caution
When the battery icon
Filter Change Reminder
If your HVAC contractor has configured the thermostat to remind you when the air filter needs to be changed, you will see FILT in the display when your air filter needs to be changed.
Resetting The Filter Change Reminder: When the FILT reminder is displayed, you should change your air filter and reset the reminder by holding down the second button from the top left of the thermostat for 3 seconds.
Remote Information
Set Time
Follow the steps below to set the day of the week and current time:
Important
You will see a Tech Set option after the MENU key is pressed. This Tech Set key is for installer configuration and should NOT be changed unless you consult your professional heating and air conditioning technician.
Saturday: Repeat steps 4 through 7 for the Saturday WAKE time period, LEAVE time period, RETURN time period, and for the Saturday SLEEP time period.
Sunday: Repeat steps 4 through 7 for the Sunday WAKE time period, LEAVE time period, RETURN time period, and for the Sunday SLEEP time period.
If using 7-Day Programming
Use these same steps for every individual day.
Temporary Hold: The thermostat will display HOLD and RUN SCHED on the left of your screen when you press the
Permanent Hold: With a temporary hold set, if you press the HOLD key at the left of your screen, you will see HOLD appear below the setpoint temperature in the display. The thermostat will now permanently stay at this setpoint and can be adjusted using
A Note About Auto Changeover:
When in Auto you have the ability to switch between auto heat or auto cool by pressing the system key. This can be done once the current mode has reached its set point. For example: if in auto heat, the heat setpoint must be satisfied before the thermostat will allow you to switch to auto cool. You can switch out of the auto by holding down the system key. To get back into auto, you must toggle the system key to auto.
Warranty Registration
Your new thermostat has a 5-year limited warranty. You must register your thermostat within 60 days of installation. Without this registration, the warranty period will begin on the date of manufacture. For warranty issues please contact the HVAC professional that installed this product. You can register your new thermostat in 2 ways:
Online Go to the company website, select warranty registration, and fill out a short registration form.
Mail Complete the form below and mail it to the address shown.
Download Manual:
Pro1 T755s Non-Programmable Thermostats Operation Manual
Other Manual:
Pro1 T755s Non-Programable Thermostats Installation Manual
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