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Installation Manual
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
Thermostat Application Guide
Description
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
Cool Only Systems
Millivolt
Table of Contents
U.S. Registered Trademark. Patents pending
Copyright
2019 All Rights Reserved.
Installation Tips
Subbase Installation
Horizontal Mount
Vertical Mount
Installation Tip: Electrical Hazard
Failure to disconnect the power before beginning to install this product
can cause electrical shock or equipment damage.
Mercury Notice
All of our products are mercury free. However, if the product you are
replacing contains mercury, dispose of it properly. Your local waste
management authority can give you instructions on recycling and
proper disposal.
T855
Power Type
Battery Power
Hardwire (Common Wire)
Yes
Hardwire (Common Wire) with
Yes
Battery Backup
Yes
Yes
Yes
A trained, experienced
Yes
technician must install this
Yes
product.
Yes
Carefully read these
instructions. You could damage
this product or cause a
hazardous condition if you fail
to follow these instructions.
Page
Una version en espanol de este
manual se puede descargar en
2-4
la pagina web de la compania.
5-8
9-10
11-12
13-21
22-29
30
31
For horizontal mount put one screw on
the left and one screw on the right.
For vertical mount put one screw on
the top and one screw on the bottom.
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 these locations:
• Close to hot or cold air ducts
• That are in direct sunlight
• With an outside wall behind the thermostat
• In areas that do not require conditioning
• Where there are dead spots or drafts (in corners or behind doors)
• Where there might be concealed chimneys or pipes
Installation Tip
Pick an installation location that is easy for the user to access. The temperature
of the location should be representative of the building.
Rev. 1919
Installation Tips
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.
Note: To ensure a solid fit between the
thermostat and the subbase:
1. Mount subbase to a flat wall
2. Use screws provided
3. Drywall anchors should be flush with the wall
4. Wires should be pushed into the wall
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Summary of Contents for Pro1 Technologies T855
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Page 1: Table Of Contents
Installation Manual Installation Tips T855 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. Pro1 Technologies P.O. Box 3377 Springfield, MO 65808-3377 Toll Free: 888-776-1427 Web: www.pro1iaq.com... -
Page 2: Installation Tips
Thermostat Quick Reference Thermostat Quick Reference Battery Installation Getting to know your thermostat Battery installation is recommended even if the thermostat is hardwired (C terminal connected). When the thermostat is hardwired and batteries are installed, the thermostat will activate a compressor delay of 5 minutes when it detects a power outage from the hardwired power supply. -
Page 3: Wiring Diagrams
Thermostat Quick Reference Thermostat Quick Reference Getting to know your thermostat 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). -
Page 4: Technician Setup Menu
Technician Setup Menu Technician Setup Menu This thermostat has a technician setup menu for easy installer Tech Setup Steps LCD Will Show Adjustment Options Default configuration. To set up the thermostat for your particular application: The swing setting often called The heating swing setting is “cycle rate”, “differential”, or adjustable from 0.2˚... - Page 5 Technician Setup Menu Technician Setup Menu Tech Setup Steps LCD Will Show Adjustment Options Default Tech Setup Steps LCD Will Show Adjustment Options Default Use the buttons This setting allows you to select You can set the minimum This feature allows the installer compressor run time to to select 1C, 2C.
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Page 6: Programming
Technician Setup Menu Programming Set Time Tech Setup Steps LCD Will Show Adjustment Options Default Follow the steps below to set the day of the week and current time: This allows you to select the Select 1, 5, 10, 15, 20, 30 or minimum number of minutes 45 minutes. - Page 7 Programming Programming Set Program Schedule For Four Time Periods Custom Program (WAKE, LEAVE, RETURN, SLEEP or OCCUPIED 1, UNOCCUPIED1, OCCUPIED 2, UNOCCUPIED 2) Setpoint Setpoint Day of To customize your 5+1+1 Program schedule, follow these steps: Events Time Temperature Temperature the Week (HEAT) (COOL)
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Page 8: Features
Programming Features Default Programming Filter Change & Other Reminders If the filter change reminder is enabled, you will see a reminder in Factory Default Program for 2 Time Periods the display when your air filter needs changed. The reminder will be shown in the display after your system has run long enough to Setpoint Setpoint... -
Page 9: Specifications
Specifications Specifications The display range of temperature ... 41˚F to 95˚F (5˚C to 35˚C) The control range of temperature..44˚F to 90˚F (7˚C to 32˚C) Load Rating..........1 amp per terminal, 1.5 amp maximum all terminals combined Swing (cycle rate or differential) ..Heating is adjustable from 0.2˚ to 2.0˚ Cooling is adjustable from 0.2˚...
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Questions and answers
What ohm rating is the remote indoor sensor