Pro1 Technologies T621-2 Non-Programmable Thermostat
Pro1 Technologies
P.O. Box 3377
Springfield, MO 65808-3377
Toll-Free: 888-776-1427
Web: www.pro1iaq.com
Hours of Operation: M-F 9 AM – 6 PM 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.
Thermostat Operation
- LCD
- Fan Switch
- System Switch
- Temperature Setpoint Buttons
- Easy change battery door
- LCD Display
See page 6 for details about this display readout. - Fan Switch
Select ON or AUTO. ON will run the fan continuously. AUTO will turn 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 air conditioning mode. Selecting OFF turns both heating and cooling off. Selecting EmH locks out your compressor and turns on the secondary heat
mode. - Temperature Setpoint Buttons
Press the + or – buttons to select the desired room temperature. - Easy change battery door
- LCD Display
Note: The compressor delay is active if “ON” is flashing. The compressor will not turn it on until the 5-minute delay has elapsed.
Thermostat Quick Reference
Battery Installation
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 +1 in the display.
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 the 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’s internal voltage threshold is reached, all relays will be opened and the thermostat will become inoperable until new batteries are installed.
Warranty Information
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 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.
Warranty Registration
Thermostat Model:
Date Installed:
Complete the form and mail it to:
Thermostat Warranty Registration Pro1iaq
P.O. Box 3377 Springfield, MO 65808-3377 Cut Out For Warranty Registration www.pro1iaq.com
Reference
Download Manual:
Pro1 Technologies T621-2 Non-Programmable Thermostat Operational Guide
OTHER MANUALS
Pro1 Technologies T621-2 Non-Programmable Thermostat Installational Manual
Pro1 Technologies T621-2 Non-Programmable Thermostat Product Specifications Guide
Pro1 Technologies T621-2 Non-Programmable Thermostat Operational Guide
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