Pro1 Technologies
P.O. Box 3377
Springfield, MO 65808-3377
Toll Free: 888-776-1427
Web: www.pro1iaq.com
Hours of Operation: M-F 9AM – 6PM Eastern
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.
LCD Display
See page 4 for details about this display read out.
Temperature Setpoint Buttons
Press the + or – buttons to select the desired room temperature.
Fan Switch
Select ON or AUTO. ON will run the fan continuously. AUTO will cycle the fan on only when the heating or cooling system is on.
System Switch
Selects the operation mode on your HVAC system. Selecting HEAT turns on the heat mode. Selecting COOL turns on the cool mode. Selecting OFF turns both heating and cooling off. Selecting EmH (for heat pumps with auxiliary heat) will lockout the compressor and control emergency/auxiliary heat.
Easy Change Battery Door
User Buttons
Use these buttons to set up your programming options. Refer to the next page for detail.
Caution: When the battery icon
Important: The low battery icon is displayed when the AA battery power is low. Whenever the thermostat detects low battery voltage from the AA batteries, the low battery icon will begin flashing on the screen for 21 days (if the batteries are not changed). If the batteries are not changed 22 days after the thermostat detects low battery voltage, the thermostat screen will only show the flashing battery icon until buttons are pressed. If the batteries are not changed 43 days after the thermostat detects low battery voltage, the thermostat screen will only show the flashing battery icon until buttons are pressed and the set points will offset to 85°F/29°C in cooling and 55°F/13°C in heating. At this stage, set point changes can be made temporarily but, the set points will change back to defaulted values after a 4-hour period. The thermostat will continue to perform this low battery flashing, temperature offset condition until the internal voltage threshold is reached. When the thermostat internal voltage threshold is reached, all relays will be opened and the thermostat will become inoperable until new batteries are installed.
(If using programming)
Temporary Hold:
If you press the
Permanent Hold:
If you press the HOLD button on the left of your screen, you will see HOLD appear to the right of the ambient temperature in the display. The thermostat will now permanently stay at this setpoint and can be adjusted using the
To Return to Running Schedule:
Press the RUN button on the left of your screen to exit either temporary or permanent hold.
Understanding Your Thermostats Staging:
This thermostat controls 2 stages of heating. For reasons of energy efficiency the thermostat will try to maintain your comfort setting using only 1 stage. If the 2nd stage is necessary it will be used and you will see Stage 2 in the display.
Set Time
To customize your program schedule, follow these steps
Weekday:
Saturday:
Repeat steps 4 thru 7 for the Saturday WAKE time period, LEAVE time period, RETURN time period, and for the Saturday SLEEP time period.
Sunday:
Repeat steps 4 thru 7 for the Sunday WAKE time period, LEAVE time period, RETURN time period, and for the Sunday SLEEP time period.
Note: If using 7-Day Programming use previous steps for every individual day.
Warranty Registration
Your new thermostat has a 2 year limited warranty. You must register your thermostat within 60 days of installation. Without this registration the warranty period will begin on 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.
Warranty Registration
Thermostat Warranty Registration
Pro1iaq
P.O. Box 3377
Springfield, MO 65808-3377
www.pro1iaq.com
Download Manual:
Pro1 Technologies T625-2 Programmable Thermostat Operational Manual
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Pro1 Technologies T625-2 Programmable Thermostat Installational Manual
Pro1 Technologies T625-2 Programmable Thermostat Product Specification Guide
Pro1 Technologies T625-2 Programmable Thermostat Operational Manual
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