Pro1 Technologies T855 - Thermostat Quick Reference; Battery Door Information

Tech Setup Steps Adjustment Options Default
LCD Will Show
This setting allows you to select
the number of heat stages.
Stages of
Heat
2H
Tech Setup Steps
Adjustment Options
Default
LCD Will Show
Technician Setup Menu
Technician Setup Menu
This feature allows the installer
to change the calibration of the
room temperature display. For
example, if the thermostat reads
70˚ and you would like it to read
72˚ then select +2.
OFF
This feature will ash a reminder
after the elapsed run time to
remind the user to change the
lter. A setting of “OFF” will
disable this feature.
Filter Change
Reminder
You can adjust the lter
change reminder from “OFF”
to 2000 hours of runtime in
50 hour increments.
Tech Setup Steps
Room
Temperature
Calibration
0˚F
You can adjust the room
temperature display to read
up to 4˚above or below the
factory calibrated reading.
Adjustment Options Default
LCD Will Show
FILTER
OF
0
This thermostat has a technician setup menu for easy installer
conguration. To set up the thermostat for your particular application:
1. Press the MENU button.
2. Press and hold the TECH SET button for 3 seconds. This 3
second delay is designed so that homeowners do not accidentally
access the installer settings.
3. Congure the installer options as desired using the table below.
Use the or keys to change settings and the NEXT
or PREV key to move from one step to another.
Note: Only press the DONE key when you want to exit the
Technician Setup options.
4. Press the DONE key to exit.
Keypad Lockout Note: The selected keypad lockout functionality must
be activated after exiting tech setup. If you do not perform this
procedure, all keys will function freely. To lock the keypad hold down
the and keys for 3 seconds. You will see a lock in the display. To
unlock the display hold down the and keys for 3 seconds.
Tech Setup Steps Adjustment Options Default
LCD Will Show
PTAC Medium
Fan Speed
Terminal
(Only displayed
if PTAC mode is
ON and PTAC fan
speeds is set to 3)
This setting will select the
terminal for medium fan speed
operations. The selected terminal
cannot be used for reversing valve
operations when heat pump is
enabled.
Use the and buttons to
select O/B terminals.
0
The swing setting often called
“cycle rate”, “dierential” or
“anticipation” is adjustable. A
smaller swing setting will cause
more frequent cycles and a larger
swing setting will cause fewer
cycles.
Cooling
Swing
The cooling swing setting
is adjustable from 0.2˚ to
2˚. For example: A swing
setting of 0.5˚ will turn the
cooling on at approximately
0.5˚ above the setpoint
and turn the cooling o at
approximately 0.5˚ below
the setpoint.
The swing setting often called
“cycle rate”, “dierential”, or
“anticipation” is adjustable. A
smaller swing setting will cause
more frequent cycles and a larger
swing setting will cause fewer
cycles.
Heating
Swing
0.5
0.5˚
The heating swing setting is
adjustable from 0.2˚ to 2˚.
For example: A swing setting
of 0.5˚ will turn the heating
on at approximately 0.5˚
below the setpoint and turn
the heating o at 0.5˚ above
the setpoint.
0.4˚
0.4
Swing Setting Tip
The second stage will turn on at 2x the swing setting. The second stage will
turn o when 1x the swing is reached. For example, if the swing setting is .5
degrees for heating and the thermostat is set at 70˚F, the rst stage will turn
on at approximately 69.5˚F. The second stage will turn on at 69˚F. The second
stage will turn o at 69.5˚F and the rst will turn o at 70.5˚F. If the third
stage is used, it will turn on at 68.5˚F and turn o at approximately 69˚F.
You can congure this thermostat
to have 2 or 4 programmable
time periods per day.
Time Periods
(Only displayed if
program optioin is
set to 5d or 7d)
4
Pro Recovery
This feature will start heating and
cooling early to bring the building
temperature to its programmed
setpoint by the beginning of the
WAKE, RETURN and OCCUPIED
time periods.
Use the or key to
select on or o.
ON
Use the and buttons to
select 4, 2C, or 4C time periods
per day.
4: Wake, Leave, Return &
Sleep.
2C: time periods are Occupied
& Unoccupied.
4C: time periods are Occupied
1, Unoccupied 1, Occupied 2, &
Unoccupied 2
You can congure this thermostat
to have a 7 day program, a
5+1+1 program or No program.
Note: If 7d is selected, in set schedule
you will program all seven days
individually.
If 5d is selected, in set schedule
you will program Monday – Friday
together and Saturday and Sunday
individually.
If 0d is selected the thermostat
becomes non-programmable and
the Set Schedule button goes away
in Menu.
Program
Options
Use the and button
to select 7d for 7 day, 5d for
5+1+1, or 0d for
non-programmable.
5d
COOL SWING
HEAT SWING
MED FAN TERM
CALIBRATE
PTAC Mode
This setting allows the thermostat
to operate a PTAC. This will allow
for multiple fan speeds selectable
in the next two tech settings.
Use the and buttons to
select ON/OFF.
ON
OF
PTAC MODE
This setting allows you to choose
the number of fan speeds the
thermostat will control.
PTAC Fan
Speeds
(Only displayed if
PTAC mode is ON)
2
2
FAN SPEEDS
When turned on the thermostat
will operate a heat pump. EM.
Heat will show as an option in the
system switch tech setting.
Use the and button to
adjust.
Heat Pump
OFF congures the
thermostat for conventional
systems.
ON congures the
thermostat for heat pump
systems.
OFF
OF
HEAT PUMP
HEAT
STAGES
2H
PROGRAM
5d
4
TIME
PERIODS
PRO
RECOVERY
This setting maximizes eciency
and equipment longevity by
increasing the heating and
cooling swing settings to 2°
during the unoccupied and leave
time periods. This will result in
signicantly fewer system cycles.
OFF
CYCLE MIN
OF
Keypad
Lockout
Keypad lockout allows you to
congure the thermostat so some
or all of the keys don’t function.
Use the and buttons to
select OFF, BASC, PART, FULL
OF - OFF= keypad lock-
out has been disabled.
BA - BASIC = basic keypad
lockout locks the menu key.
PA - PARTIAL= partial keypad
lockout, which locks all the
keys except the or setpoint
keys.
FU - FULL= full keypad
lockout, which locks out all
the keys.
OFF
KEY
LOCKOUT
OF
Use the and buttons to
select , 2 or 3.
1. Speeds: ON, Auto
2. Speeds: Low, High, Auto
3. Speeds: Low, Med, High,
Auto
Use the and buttons
to select 1H, 2H, 3H, 4H.
Use the or key to
select on or o.
Cycle
Minimizer
(Only displayed if
program optioin is
set to 5d or 7d)
This feature allows you to set a
maximum heating setpoint limit.
The setpoint temperature cannot
be raised above this value.
Heat
Setpoint
Limit
Use the or key to
select the maximum heat
setpoint and the minimum
cooling setpoint.
HEAT LIMIT
HE
90˚F
Technician Setup MenuTechnician Setup Menu
This setting provides the option
to select a terminal for Fresh Air
damper functions. The selected
terminal cannot be used for
reversing valve operations when
the heat pump setting is turned
on.
Fresh Air
Terminal
(Only displayed
if fresh air mode
is turned ON.
This setting
cannot be used
with PTAC, three
stages of cool,
or economizer
turned on)
Use the and buttons
to select O/B.
FRESH AIR TRM
0
O
This setting selects the minimum
number of minutes that the fresh
air damper will be energized.
Fresh Air
Minutes
Use the and buttons
to select 5, 10, 15, 20, 25,
30, 35, 40, 45, 50, 55 or 60
minutes.
5
40
FRESH AIR MIN