Pro T855i User manual

Operation ManualOperation Manual

U.S. Registered Trademark. Patents pending
Copyright 2018 All Rights Reserved.
T855i
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
Programming
Features
Warranty Information
Page
2-3
4-7
8-10
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. 1836
11-13
13
P.O. Box 3377
Springeld, MO 65808-3377

Thermostat OperationThermostat Operation
LCD Display
Glow in the dark light button
Fan Button
System Button
Temperature Setpoint Buttons
See page 6 for details about
this display read out.
The glow in the dark light
button will self illuminate
for several hours after
exposure to ambient light.
This button turns on the
display light when pressed.
Select ON, AUTO or IAQ.
The ON setting will run the
fan continuously. The AUTO
setting will cycle the fan on
only when the heating or
cooling system is on. IAQ
will enable IAQ FAN MODE,
if programmed.
Selects the operation mode
on your HVAC system.
Selecting HEAT turns on
the heat mode. Selecting
COOL turns on the cool
mode. Selecting OFF turns
both heating and cooling o.
Selecting AUTO will turn the
HEAT or COOL on as
needed. (EMHT will appear as
an option if operating a heat
pump. EMHT setting will turn
on emergency heat)
Press the or
buttons to select the
desired room temperature.
Button Access Door

Thermostat Quick Reference Thermostat Quick Reference
Indicates the current room temperature
Time and day of the week
Staging Indicators: Indicates stages of heat or cool running.
The compressor delay feature is active if these are ashing.
Setpoint: Displays the user selectable setpoint temperature.
Hold: Is displayed when the thermostat program is permanently overridden.
WIFI Connection Indicator
WIFI Signal Strength
Button Options
Program Time Periods - Residential: Uses 4 time periods - WAKE, RETURN,
LEAVE & SLEEP. Commercial uses 2 time periods - OCCUPIED, UNOCCUPIED.
Lockout Indicator
Fan Indicator

Thermostat Quick Reference Thermostat Quick Reference
Set Time
Follow the steps below to set the day of the week and current time:
1. Press the MENU button.
2. Press TIME.
3. Day of the week will be ashing. Use the or key to
select the current day of the week.
4. Press STEP.
5. The current hour is ashing. Use the or key to
select the current hour. When using 12-hour time, make sure
the correct a.m. or p.m. choice is selected.
6. Press STEP.
7. Minutes are now ashing. Use the or key to
select current minutes.
8. Press DONE when completed.
Set Program Schedule For Four Time Periods
3. Press SET SCHED. Note: Monday-Friday (Monday if in 7 day) is dis
played and the WAKE icon is shown. You are now programming the
WAKE time period for that day.
4. Time is ashing. Use the or key to make your time
selection for that day’s WAKE time period.
Note: If you want the fan to run continuously during this time
period, select ON with the FAN key. If you want to use IAQ
mode during this time period, select IAQ with the fan key.
5. Press NEXT.
6. The setpoint temperature is ashing. Use the or key
to make your setpoint selection for that day’s WAKE period.
7. Press NEXT.
8. Repeat steps 4 through 7 for that day’s LEAVE time period,
RETURN time period, and the SLEEP time period.
To customize your 5+1+1 Program schedule, follow these steps:
Weekday:
(WAKE, LEAVE, RETURN, SLEEP)
1. Select HEAT or COOL with the system switch.
Note: You have to program heat and cool each separately.
2. Press the MENU button (If menu does not appear rst press RUN).
You will see a TECH option after the MENU key is pressed. This
TECH key is for installer conguration and should NOT be changed
unless you consult your professional heating and air conditioning
technician.
Important:
Continued on next page...

Programming Programming
Set Program Schedule For Two Time Periods
1. Select HEAT or COOL with the system key.
Note: You have to program heat and cool each separately.
2. Press the MENU button (If menu does not appear rst, press
RUN).
3. Press SCHED. Note: Monday-Friday (Monday if in 7 day) is dis
played and the OCCUPIED text is shown. You are now program
ming the OCCUPIED time period for that day.
4. Time is ashing. Use the or key to make your time
selection for OCCUPIED time period.
Note: If you want the fan to run continuously during this time
period, select ON with the FAN key. If you want to use IAQ
mode during this time period, select IAQ with the fan key.
5. Press NEXT.
6. The setpoint temperature is ashing. Use the or key
to make your setpoint selection for that day’s OCCUPIED
period.
7. Press NEXT.
8. Repeat steps 4 through 7 for that day’s UNOCCUPIED
time period.
To customize your 5+1+1 Program schedule, follow these steps:
Weekday:
(OCCUPIED, UNOCCUPIED)
Repeat steps 4 through 7 for the Saturday WAKE time period, for the
Saturday LEAVE time period, for the Saturday RETURN time period, and
for the Saturday SLEEP time period.
Saturday:
Repeat steps 4 through 7 for the Sunday WAKE time period, for the
Sunday LEAVE time period, for the Sunday RETURN time period, and
for the Sunday SLEEP time period.
Sunday:
A Note About Auto Changeover:
When in Auto you have the ability to switch between auto heat or auto
cool by pressing the system key. This can be done once the current
mode has reached its setpoint. For example: if in auto heat, the heat
setpoint must be satised before the thermostat will allow you to switch
to auto cool. You can switch out of auto by holding down the system
key. To get back into auto, you must toggle the system key to auto.
To customize your 7 day Program Schedule, repeat
steps 4 through 8 for the Tuesday, Wednesday, Thursday,
Friday, Saturday and Sunday time periods.
Continued on next page...

Repeat steps 4 through 7 for the Saturday OCCUPIED time period
and for the Saturday UNOCCUPIED time period.
Saturday:
Repeat steps 4 through 7 for the Sunday OCCUPIED time period and
for the Sunday UNOCCUPIED time period.
Sunday:
Programming Features
If appears in the display, then the keypad is locked. All or some of
the keys will not work. Hold the and keys for 3 seconds to
remove the lock. Use the same procedure to lock the display
Keypad Lockout Note:
Temporary Hold: The thermostat will display HOLD and RUN
on the bottom of your screen when you press the or
key. If you do nothing, the temperature will remain at this setpoint
temporarily for 4 hours. After this, the program setpoint will then
replace your temporary setpoint.
Permanent Hold: With a temporary hold set, if you press the HOLD
key at the bottom of your screen, you will see HOLD appear below
the setpoint temperature in the display. The thermostat will now
permanently stay at this setpoint and can be adjusted using the
or keys.
To Return To Program: Press the RUN key at the bottom of your
screen to exit temporary and permanent holds.
Temporary & Permanent Hold Feature
To customize your 7 day Program schedule, repeat
steps 4 through 8 for the Tuesday, Wednesday,
Thursday, Friday, Saturday and Sunday.
A Note About Programmable Fan:
The programmable fan feature will run the fan continuously during
during any time period when it is programmed to be on. This is the best
way to keep the air circulated and to eliminate hot and cold spots in your
building. If using IAQ mode, set fan to IAQ for any time period.

Warranty Information
Warranty Registration
Your new thermostat has a 5 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:
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
Online
Mail
If your HVAC contractor has congured the thermostat to remind
you when the air lter needs changed, you will see a reminder in the
display when your air lter needs to be changed.
Resetting The Filter Change Reminder: When the reminder
is displayed, you should change your air lter and reset the reminder
by holding down the Set Time/Next Step button of the thermostat
for 3 seconds.
Filter Change & Other Reminders
This thermostat also has other maintenance reminders (Humidity
Pad, UV lamp, and IAQ Cell), that are reset with the same procedure.
Features
Thermostat Model:
Date Installed:
Complete form and mail to:
Thermostat Warranty Registration
Pro1iaq
P.O. Box 3377
Springeld, MO 65808-3377
Name:
Address:
City:
State:
Zip:

www.pro1iaq.com
Cut Out For
Warranty Registration