Pro1 Technologies T855iSH - Economizer & Ventilation Settings; Display, Clock & Contractor Settings

Tech Setup Steps Adjustment Options Default
LCD Will Show
Technician Setup Menu Technician Setup Menu
This setting allows you to select
the number of heat and cool
stages.
Select GAS to have the system
control the fan during a call for
heat, select Electric to have the
thermostat control the fan during
a call for heat.
Note: If heat pump is set to “ON” this
step will not show, and will default
to ELECTRIC.
Electric or Gas
Fan Operation
(Only displayed if
heat pump is set
to “ON”)
Use and buttons to
change the setting.
Tech Setup Steps Adjustment Options Default
LCD Will Show
FAN SET
System
Stages
2H
GAS
Tech Setup Steps Adjustment Options DefaultLCD Will Show
Tech Setup Steps
Adjustment Options
Default
LCD Will Show
Technician Setup Menu
18
20
17
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.
Technician Setup Menu
GAS
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
Keypad
Lockout Code
(Only displayed
if keypad lockout
is set to Basic,
Partial, or Full)
Keypad lockout with code shows
only when Keypad Lock is set to
BASIC, PARTIAL or FULL
OFF
1. When ON you must enter
the code after pressing the
and buttons toegether
for 3 secounds to take the
thermostat in or out of keypad
lockout. You will then be taken
to a screen that allows you to
enter the code.
2. Use and to change
each number. Use the Previous
and Next keys to change from
one number to the next. The
number you are currently on
will blink.
3. Press Done when
completed. If entered correctly
the thermostat will be re-
moved from keypad lockout.
You can congure this thermostat
to have a 7 day program or No
program.
Note: If 7d is selected, in set schedule
you will program all seven days
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 or 0d
for non-programmable.
7d
19
System Set
Use the or buttons
until the desired application
is ashing. AUTO = (Auto
Changeover)
Heat
Off
Cool
SYSTEM SET
AutoO
Em.Heat
Cool
You can congure the system
switch for the particular
application. Heat - O - Cool,
Heat - O, Cool - O, Heat - O -
Cool – Auto.
Note: Emergency Heat is available
in heat pump mode only.
Dual Fuel
Auxiliary For
Heat Pump
(Only displayed if
heat pump is set
to “ON”)
OFF
This setting allows the system
to run Gas, Oil, Propane or any
other types of auxiliary heat. The
thermostat will default to electric
auxiliary heat in heat pump
applications.
OF
DUAL FUEL
Use the and buttons
to select ON/OFF.
SET
STAGES
2H2C
PROGRAM
7d
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
OF
KEY CODE
Use the and buttons
to select 1H/1C, 2H/1C,
2H/2C, 3H/1C, 3H/2C, 3H/3C,
4H/2C, 4H/3C, 5H/3C.
Note: Heat and cool choices
are limited based on
conventional, heat pump, or
PTAC system conguration.
Third Stage of
Cool Terminal
Designation
(Only displayed
if stages of cool
is set to three on
previous setting)
This setting allows the O or B
terminal to be selected as the
third stage of cool. The selected
terminal will not be used for
reversing valve functions in heat
pump mode.
Use the and buttons to
select O/B.
O
3 COOL TERM
0
This feature allows the thermostat
to keep multiple stages of heat or
cool energized until the setpoint
is satised.
Satisfy
Setpoint
Staging
(Only displayed
if there are more
than one stage of
heat or cool)
Use the or buttons
to turn on of o.
SS STAGING
OF
This feature allows a delay to
occur if an additional stage is
needed. This allows the previous
stage extra time to satisfy the
setpoint.
Note: Will not show if using
outdoor sensor with balance point
temperature.
Staging
Delay
(Only displayed
if there are more
than one stage of
heat or cool)
Use the or key to
select OFF, 5, 10, 15, 30, 45,
60, or 90 minutes.
STAGING
DELAY
OF
This feature allows the installer
to select the minimum run
time for the compressor. For
example, a setting of 4 will force
the compressor to run for at
least 4 minutes every time the
compressor turns on, regardless of
the room temperature.
Minimum
Compressor
On Time
You can set the minimum
compressor run time to
“OFF”, “3”, “4”, or “5” minutes.
If 3, 4 or 5 is selected, the
compressor will run for at
least the selected time
before turning o. Use the
and buttons to
change the setting.
MIN COMP ON
OF
OFF
OFF
OFF
The compressor short cycle delay
protects the compressor from
“short cycling”. This feature will
not altlow the compressor to be
turned on for 5 minutes after it
was last turned o.
Compressor
Short Cycle
Delay
ON
Selecting “ON” will not allow
the compressor to be turned
on for 5 minutes after the
last time the compressor was
on. Select “OFF” to remove
this delay. Use the and
buttons to change the
setting.
Cooling Fan
Delay
The cooling fan delay setting will
delay the fan from coming on in
cool mode and keep it running
after the compressor shuts o
for a short time to save energy in
some systems.
You can set the cooling fan
delay to OFF, 10, 30, 60 or 90
seconds. If 10, 30, 60, or 90
is selected the fan will not
turn on for that many seconds
when there is a call for cool
and will run for that many
seconds after satisfying a call
for cool.
OFF
COMP DELAY
COOL FAN DL
OF
Use the or key to
select on or o.
Cycle
Minimizer
(Only displayed if
program optioin is
set to 5d or 7d)