Advertisement

Quick Links

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
Wired Remote Sensing
Any HVAC system up to 3H/2C with
standard low voltage controlled humidifier.
Any HVAC system up to 3H/2C with standard
low voltage controlled de-humidifier.

Table of Contents

Setting Humidity
U.S. Registered Trademark. Patents pending
1
Copyright
2020 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.
3
T855SH
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
Yes
Carefully read these
instructions. You could damage
Yes
this product or cause a
Yes
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
11-14
15-33
34-36
37-44
45
46
47
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. 2028
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
2
4

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the T855SH and is the answer not in the manual?

Questions and answers

Summary of Contents for Pro1 Technologies T855SH

  • Page 1: Table Of Contents

    Installation Manual Installation Tips T855SH 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

    Wiring Diagrams Wiring Diagrams Optional 24 VAC common connection when thermostat is used in battery power mode. Power supply Factory - installed jumper. Remove only when installing on 2 transformer systems. If DEHUM relay requires a normally-energized input, set Dehumidify relay to NC in Technician Setup.
  • Page 5 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 6 This setting selects the minimum Use the buttons You can disable the sensor on the ON enables local T855SH sensor. OFF disables local to select 5, 10, 15, 20, 25, number of minutes that the fresh thermostat. At least one indoor...
  • Page 7 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 feature allows you to put If selected ON, you will see When this feature is enabled, the Economizer to select ON or OF.
  • Page 8 Technician Setup Menu Technician Setup Menu This table references different humidity levels the thermostat will Tech Setup Steps LCD Will Show Adjustment Options Default conform to, based on the outdoor temperature measurements. This feature adds humidity when Use the key to turn on or off.
  • Page 9 Technician Setup Menu Technician Setup Menu Tech Setup Steps LCD Will Show Adjustment Options Default Tech Setup Steps LCD Will Show Adjustment Options Default The amount of over cooling Use the and left and right This feature will adjust the Use the buttons Over Cool...
  • Page 10: Programming

    Programming Programming Set Program Schedule For Four Time Periods Set Time (WAKE, LEAVE, RETURN, SLEEP or OCCUPIED 1, UNOCCUPIED1, OCCUPIED 2, UNOCCUPIED 2) Follow the steps below to set the day of the week and current time: To customize your 5+1+1 Program schedule, follow these steps: 1.
  • Page 11 Programming Programming To customize your 7 day 4 time period Program schedule, follow Custom Program these steps: Setpoint Setpoint Monday: Day of Events Time Temperature Temperature the Week 1. Select HEAT or COOL with the SYSTEM key. (HEAT) (COOL) Note: You have to program heat and cool each separately. Wake/OCC1 2.
  • Page 12: Features

    Features Remote Sensor Operation Filter Change & Other Reminders Remote Sensor Operation Options If the filter change reminder is enabled, you will see a reminder in Option #1 - Indoor / Local Temperature Sensor “ON”: the display when your air filter needs changed. The reminder will 1.

Table of Contents