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Pro1 IAQ TRUE COMFORT T621-2 Installation Manual
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Pro1 IAQ TRUE COMFORT T621-2 Installation Manual

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This manual covers the following models:
• T621-2
Thermostat Applications Guide
D
e
s
c
i r
t p
o i
n
Gas or Oil Heat
Electric Furnace
Heat Pump (No Aux. or Emergency Heat)
Heat Pump (with Aux. or Emergency Heat)
Multi-stage Systems
Heat Only Systems
Heat Only Systems - Floor or Wall Furnaces
Cool Only Systems
Millivolt

Table of Contents

Una versión española de este
manual puede ser descargada
en www.pro1iaq.com
® U.S. Registered Trademark. Patents pending.
Copyright © 2010 Pro1 IAQ, Inc. All rights reserved.
INSTALLATION MANUAL
Power Type
Battery Power
Hardwire (Common Wire)
No
No
Hardwire (Common Wire) with Battery Backup
Yes
Yes
No
No
No
No
No
Page
A trained, experienced technician
must install this product.
2
3
Carefully read these instructions. You
4
could damage this product or cause a
5
hazardous condition if you fail to follow
6
these instructions.
7
8
9
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 PM Eastern)
1
Rev. 1043

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Summary of Contents for Pro1 IAQ TRUE COMFORT T621-2

  • Page 1: Table Of Contents

    (776-1427) during normal business hours Una versión española de este (Mon-Fri 9 AM - 6 PM Eastern) manual puede ser descargada en www.pro1iaq.com ® U.S. Registered Trademark. Patents pending. Copyright © 2010 Pro1 IAQ, Inc. All rights reserved. Rev. 1043...

  • Page 2: Wall Locations

    INSTALLATION TIPS Wall locations The thermostat should be installed approximately 4 to 5 feet above the floor. Select an area with average temperature and good air circulation. Do not install thermostat in locations: • Close to hot or cold air ducts •...

  • Page 3: Getting To Know Your Thermostat

    Getting to know your thermostat Low Battery Indicator: Replace batteries when Indicates the current indicator is shown. room temperature. System operation indicators: ON will display when the COOL, HEAT or Emergency Heat is on. Displays the user selectable setpoint temperature. +1 will appear in the display when the auxiliary heat is active.

  • Page 4: Subbase Installation

    SUBBASE INSTALLATION Caution: Mercury Notice: Electrical Hazard All of Pro1’s products are mercury free. However, if the Failure to disconnect the product you are replacing power before beginning to contains mercury, dispose of it install this product can cause properly. Your local waste electrical shock or equipment management authority can give damage.

  • Page 5: Wiring

    WIRING Caution: Electrical Hazard Warning: Failure to disconnect the power All components of the control before beginning to install this system and the thermostat product can cause electrical installation must conform to shock or equipment damage. Class II circuits per the NEC Code. Wiring If you are replacing a thermostat, make note of the terminal connections on the...

  • Page 6: Terminal Designations

    TECHNICIAN SETUP Terminal Designations Common wire from Auxiliary heat relay - Stage 2 heat system transformer Compressor relay - Stage 1 heat and cool Heat pump changeover valve energized in heating Fan relay Emergency heat relay Heat pump changeover valve energized in cooling Note: Transformer power...

  • Page 7: Technician Setup Menu

    TECHNICIAN SETUP MENU Technician Setup Options Configure the installer options as This thermostat has 4 different setup desired using the table below. configurations. To setup the thermostat for your particular application: Use the keys to change settings. Note: When you want Select COOL, HEAT, EmH, or OFF to exit the Technician Setup options select OFF using the system switch...

  • Page 8: Mount Thermostat

    MOUNT THERMOSTAT & BATTERY INSTALLATION Mount Thermostat Align the 4 tabs on the subbase with corresponding slots on the back of the thermostat, then push gently until the thermostat snaps in place.

  • Page 9: Specifications And Contact Us

    Operating ambient 90% non-condensing maximum Operating humidity 4.7”W x 4.4”H x 1.1”D Dimensions of thermostat Contact Us Pro1 IAQ Inc. 1111 S. Glenstone Suite 2-100 Spring eld, MO 65804 Toll-free: 1-888-Pro1iaq (776-1427) Toll Number (Outside the USA): 330-821-3600 Web: http://www.pro1iaq.com...