Pro1 T855i Installation manual
T855i
INSTALLATION MANUAL
Upstairs
MENU AUTO HEAT
Heat
Cool
O
Thermostat Applications 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
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Table of Contents Page
Installation Tips
Themostat Quick Reference
Subbase Installation
Wiring
Technician Setup Menu
Programming
Features and Specications
2
3
4
5-6
7-11
12-15
16
Power Type
Hardwire (24 VAC Common Wire)
A trained, experienced technician
must install this product.
Carefully read these instructions. You
could damage this product or cause a
hazardous condition if you fail to follow
these instructions.
Una versión en español de este
manual se puede descargar en la
página web de la compañía.
Patents and Trademarks pending.
Copyright © 2013. All rights reserved.
Rev. 1429
1
INSTALLATION TIPS
6
Important:
The low battery indicator is displayed
when the AA battery power is low. If the
user fails to replace the battery within
21 days, the thermostat display will only
show the low battery indicator as a final
warning before the thermostat
becomes inoperable. The batteries are
located on the back of the thermostat.
LCD
1
Hold is displayed when
thermostat program is
permanently overridden.
+1 will appear in the
display when second
stage of heat or cool
is on. +2 will appear
for third stage of heat.
System operation
indicators: The COOL,
HEAT or FAN icon will
display when the COOL,
HEAT or FAN is on.
NOTE: The compressor
delay feature is active if
these icons are flashing.
The compressor will not
turn on until the 5 minute
delay has elapsed.
Days of the
week and time
Low Battery Indicator:
Replace batteries when
this indicator is shown.
Program Menu Options:
Shows different options
during programming.
Indicates the
current room
temperature.
Programmable
Time Period Icons:
This thermostat has
4 programmable time
periods per day.
Displays the user
selectable setpoint
temperature.
Wall Locations
The thermostat should be installed approximately 4 to 5 feet above the oor. Select an area with average
temperature and good air circulation.
Do not install thermostat in locations:
• Close to hot or cold air ducts
• In areas that do not require
conditioning
NO
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.
Removing the private label badge
NO
• With an outside wall behind the thermostat
• Where there might be concealed
chimneys or pipes
Use the bevel on lower ridge
NO YES
Magnet in door
• Where there are dead spots or
drafts (in corners or behind doors)
• That are in direct sunlight
Gently slide a screwdriver into the
bottom edge of the badge. Gently
turn the screwdriver counter
clockwise. The badge is held on by a
magnet. The badge should pry o
easily. Do not use force.
About the Badge
All our thermostats use the same universal magnetic badge.
Visit our website to learn more about our free private label program.
2
Getting to know your thermostat
2
PM
Tue
5:23
1
Menu
MENU AUTO HEAT
F
Auto
THERMOSTAT QUICK REFERENCE
LCD Display
1
2
Glow in the Dark Light Button
3
3
Temperature Set Point Buttons
4
User Program Buttons
Fan Button
5
6
O
System Button
7
Button Access Door
4
Programmable Time Periods
Residential: uses 4 time
periods- WAKE, RETURN, LEAVE
and SLEEP.
Commercial: uses 2 time
periods - Occupied and
Unoccupied.
Wi-Fi Signal
Strength
5
Days of the
week and time
88:88
OutdoorTemp
UnOccupied
Wake
Return
Leave
Sleep
6
7
SatSunMon
AM
TueWedThurFri
PM
8.8
Indicates the
current room
temperature.
Set At
8.8
HOLD
F
Stage
C
C
F
1234
Displays the user
selectable setpoint
temperature.
Hold is displayed when
thermostat program is
permanently overridden.
Indicates stages
of system running.
Lockout
Indicator
Fan
Indicator
Button Information.
Wi-Fi Connection
Indicator
Information Field
3
SUBBASE INSTALLATION
Caution:
Electrical Hazard
Failure to disconnect the
power before beginning to
install this product can cause
electric shock or equipment
damage.
Vertical Mount
UP
RH
RC
Horizontal Mount
Caution
Mercury Notice:
All of our thermostats 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.
For vertical mount put
one screw on top and one
screw on bottom.
For horizontal mount put
one screw left and one
screw right.
Horizontal Mount
Vertical Mount
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:
1.
2.
3.
4.
To insure a solid fit between the
thermostat and the subbase:
Mount subbase to a flat wall
Use screws provided
Drywall anchors should be flush with the wall
Wires should be pushed into the wall
Installation Tip
Prior to installing subbase
place non-ammable
insulation into wall
opening to prevent drafts.
MENU AUTO HEAT
4
1
Power supply
2
Factory-installed jumper. Remove only when installing on 2-transformer systems
3
Use either O or B terminals for changeover valve
4
A 24 VAC common connection is required with this thermostat.
WIRING
Typical 2H/2C system: 1 transformer
C
2
4
COMPRESSOR
RELAY
HEAT RELAY
FAN RELAY
HEAT RELAY 2
COMPRESSOR
RELAY 2
1
R
Typical 3H/2C heat pump system
C
L2
2
COMPRESSOR
4
EMERGENCY HEAT
FAN RELAY
RELAY
COOL CHANGE OVER
RELAY
HEAT CHANGE OVER
L1 (HOT)
1
R
VALVE
VALVE
L2
L1 (HOT)
Typical 2H/2C system: 2 transformer
REMOVE JUMPER
2
COMPRESSOR
RELAY
FAN RELAY
HEAT RELAY
HEAT RELAY 2
COMPRESSOR
RELAY 2
4
C
L2
L1 (HOT)
1
R
C
L2
L1 (HOT)
1
R
Typical heat-only system
C
2
4
3
O
HEAT RELAY
B
L2
L1 (HOT)
1
R
AUXILIARY
COMPRESSOR
RELAY 2
Typical heat-only system with fan
2
4
HEAT RELAY
FAN RELAY
NOTE:
In many heat pump systems with no emergency heat relay a jumper can be installed between E and W2.
Typical cool-only system
C
L2
L1 (HOT)
1
R
2
4
COMPRESSOR
RELAY
FAN RELAY
C
L2
L1 (HOT)
1
R
5
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