Pro1 Technologies T621-2 User manual

Operation ManualOperation Manual

U.S. Registered Trademark. Patents pending
Copyright 2018 All Rights Reserved.
T621-2
Pro1 Technologies
Toll Free : 888-776-1427
Web: www.pro1iaq.com
Hours of Operation: M-F 9AM - 6PM Eastern
Table of Contents
Table of Contents
Thermostat Operation
Thermostat Quick Reference
Thermostat Warranty Information
Page
2-3
4-6
7
1
Una version en español de este
manual se puede descargar en la
pagina web de la compañia.
Equipment damage hazard.
Do not operate the cooling
system if the outdoor
temperature is below 50 ˚F
(10 ˚C) to prevent possible
compressor damage.
Caution
Rev. 1814
P.O. Box 3377
Springeld, MO 65808-3377

Set At
EmHCOOL
OFFH EAT
Thermostat OperationThermostat Operation
LCD
Fan Switch
System Switch
Easy change battery door
Temperature Setpoint Buttons
LCD Display
Fan Switch
System Switch
Temperature Setpoint Buttons
See page 6 for details about
this display read out.
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.
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 o.
Selecting EmH locks out
your compressor and turns
on the secondary heat
mode.
Press the + or - buttons to
select the desired room
temperature.
Note: The compressor
delay is active if “ON”
is ashing. The
compressor will not
turn on until the 5
minute delay has
elapsed.
Easy change battery door

Thermostat Quick Reference
Battery Installation
Thermostat Quick Reference
Insert 2 AA
Alkaline batteries
(included). High
quality alkaline
batteries are
recommended.
Simple
operating
instructions
are found
on the back
of the
battery
door.
Understanding Your Thermostats Staging:
This thermostat controls 2 stages of heating. For reasons of energy
eciency 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.
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 ashing
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 ashing 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
ashing battery icon until buttons are pressed and the set
points will oset 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 ashing, temperature oset
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.
Important:

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 date of manufacture.
For warranty issues please contact the HVAC professional that
installed this product. You can register your new thermostat in 2 ways:
Go to the company website, select warranty registration and
ll out a short registration form.
Complete the form below and mail it to the address shown.
Warranty Registration
Complete form and mail to:
Thermostat Warranty Registration
Thermostat Quick Reference
Online
Mail
Low Battery
Indicator:
Replace batteries
when indicator is
shown.
Displays the
selected setpoint
temperature.
System Operation Indicators:
ON will display when the COOL,
HEAT or Emergency Heat is on.
NOTE: The compressor delay feature is
active if ON is ashing. The compressor will
not turn on until the 5 minute delay has
elapsed.
Indicates the
current room
temperature.
Pro1iaq
P.O. Box 3377
Springeld, MO 65808-3377
Name:
Address:
City:
State:
Zip:
Thermostat Model:
Date Installed:
Stage 1 and 2
indicate the stages
of HEAT that are
active.

www.pro1iaq.com
Cut Out For
Warranty Registration