Peco T12500 User manual

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• Touchscreen technology
• Large 12 square inch blue display
• 7 available outputs, including economizer
• SD memory card interface
• 365-day, 20 holiday programmability
• 7-day, 5-1-1, 5-2 programming
OPERATING
MANUAL
T12000 Non-Programmable Models
T12500 Programmable Models
Performance PRO™ Series
T12000
Series
Series
Gas
Electric Heat Pump
Oil

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Thank you for choosing a PECO® Performance PRO™ thermostat. The Performance PRO
T12000 Series is intended for use in residential and commercial environments. It is designed for
and can support up to 3-HEAT/ 2-COOL configurations in conventional systems and heat pump
applications. The Performance PRO also provides the capability to meet the requirements for
ASHRAE 90.1-2004 and California Building Code Title 24 (2008 edition).
The Performance PRO T12000 Series is comprised of the T12000 non-programmable thermostat
models and the T12500 programmable thermostat models. The T12500 model features a 12
square inch blue backlit display with dynamic menus, accessed using touchscreen keys.
All Performance PRO T12000 Series offer the following standard features: auto-changeover,
optional remote sensors, occupancy sensors, three levels of keypad lockout, a PIN access code,
and filter replacement reminder. The T12500 programmable models contain: up to four scheduled
events per day, a 365-day calendar, 20 holidays, holiday override, temporary override, a Power
Harvesting feature (also known as “power stealing”) to preserve battery life, Secure Digital (SD)
card capability (card not included), and optional humidity control (T12532-IAQ only).
The T12000 Series can be powered by 24 VAC or batteries or both (recommended). The T12000
Series can control up to 7 outputs and monitor three external sensors. The T12000 Series mounts
onto any PECO Performance PRO Series wallplate.
THE PECO PERFORMANCE PRO T12000 SERIESTHE PECO PERFORMANCE PRO T12000 SERIESTHE PECO PERFORMANCE PRO T12000 SERIES

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Table of Contents
T12000 Thermostat
The PECO Performance PRO T12000 Series .....................................................................................2
Quick reference: Default Display mode ...............................................................................................5
Quick reference: Home Display mode & navigation ............................................................................6
Quick reference: T12000 Home Display screen .................................................................................7
Key operation .......................................................................................................................................8
Set the clock, month, and day ........................................................................................................... 11
Select Fahrenheit or Celsius temperature .........................................................................................12
Select the fan mode ...........................................................................................................................13
Select system mode ..........................................................................................................................14
Reset lter timer .................................................................................................................................15
T12500 Thermostat
Program the thermostat (T12500 models only) .................................................................................16
Program scheduled events ................................................................................................................17
Program override ...............................................................................................................................19
Select humidity setpoints ..................................................................................................................20
Program a holiday .............................................................................................................................21
Load SD card settings .......................................................................................................................22
PECO compatible sensors .................................................................................................................23
T12000 Series Product Specifications ....................................................................................24

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!CAUTION!
• READ INSTRUCTIONS CAREFULLY BEFORE ATTEMPTING TO OPERATE THIS THERMOSTAT.
• FOLLOW THE PERFORMANCE PRO INSTALLATION INSTRUCTIONS BEFORE PROCEEDING.
• Failure to observe safety information and comply with instructions could result in PERSONAL INJURY,
DEATH AND/OR PROPERTY DAMAGE.
• Use this thermostat only as described in this manual.
• This is a 24 VAC low-voltage thermostat. Do not install on voltages higher than 30 VAC.
• Contact a qualied service person if at any time the thermostat does not operate properly.
• Use care to avoid static discharge to the thermostat.
• To avoid electrical shock or damage to equipment, disconnect power before installing or servicing and use
only wiring with insulation rated for full thermostat operating voltage.
• To avoid potential re and/or explosion, do not use in potentially ammable or explosive atmospheres.
• This product, when installed, will be part of an engineered system whose specications and performance
characteristics are not designed nor controlled by PECO.
• All wiring and applications must conform to local and national building codes and ordinances. Applications
and national codes must be reviewed prior to installation to assure the installation is functional and safe.
IMPORTANT NOTE: This thermostat was shipped with factory default settings. The thermostat’s installer
may have congured the thermostat differently from the factory-default settings, and may have modied
or disabled certain features. Contact the installer or a service technician if there are questions about the
thermostat’s conguration.

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QUICK REFERENCE: DEFAULT DISPLAY MODEQUICK REFERENCE: DEFAULT DISPLAY MODEQUICK REFERENCE: DEFAULT DISPLAY MODE
Default Display
The factory programmed settings show the time, temperature, and setpoint. This is called
the Default Display. The Default Display appears after a short period of inactivity. The Default
Display can be custom configured to show user-selected items only (see Service Menu 520 in
“Performance PRO T12000 Series Installation Guide”).
Note: The Battery Indicator, Service Indicator, Filter Indicator, and Secure Digital (SD)
icons appear at bottom of digital display if user action is required.
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QUICK REFERENCE: HOME DISPLAY MODE & NAVIGATIONQUICK REFERENCE: HOME DISPLAY MODE & NAVIGATIONQUICK REFERENCE: HOME DISPLAY MODE & NAVIGATION
Press blank area of touchscreen to enter Home Display from Default Display. Navigate
submenu options to customize thermostat settings. Available options are:
Edit - Allows user to edit variable settings (e.g., Cool/Heat Setpoints) within submenus.
Done - Saves settings and reverts to the Home Display.
Cancel - Discards changes and reverts to the Home Display.
Home Display
The Performance PRO T12000 Series has a touchscreen digital display, with variable menu keys
(shown below). To make a selection from a multiple-option key, press the key continuously. Flashing
option is automatically selected. Available submenus depend on system type and menu navigation.
Digital display SD card slot
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1Fan key
4Holiday key
5Clock key
3Schedule key
2System key
Cool Setpoint
&
Heat Setpoint
7
Override key
Screen key
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QUICK REFERENCE: T12000 HOME DISPLAY SCREEN QUICK REFERENCE: T12000 HOME DISPLAY SCREEN QUICK REFERENCE: T12000 HOME DISPLAY SCREEN
System key
Press to enter
system settings:
Off/Heat/Cool/
Auto (see pp. 8, 14)
Program
scheduled
events
(see p. 17 )
Current time
(see p. 11)
Current day
(see p. 11)
Keypad
Lockout
(see p. 10)
Service
Indicator
(see p. 10)
SD Card
(see p. 10)
Screen
key
(see p. 10)
Override key
Press to override
scheduled events
(see pp. 9, 19)
Current temperature
(see p. 12)
Temperature
format
(see p. 12)
Fan key
Press to enter
fan display
(see pp. 8, 13)
Battery Indicator
Appears when
battery is low
(see p. 10)
Cool Setpoint
temperature
(see pp. 16-19)
Heat Setpoint
temperature
(see pp. 16-19)

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PRESS ANY KEY TO BEGIN
TEXTTEXTTEXTTEXTTEXT
PRESS ANY KEY TO BEGINPRESS ANY KEY TO BEGIN
KEY OPERATIONKEY OPERATIONKEY OPERATION
TEXTTEXTTEXTTEXTTEXTKEY OPERATIONTEXTTEXTTEXTTEXTTEXTKEY OPERATIONTEXTTEXTTEXTTEXTKEY OPERATIONTEXTTEXTTEXTTEXTTEXT
Fan key
Used to select among two fan menu options:
ON - Continuous fan operation.
AUTO - Fan is activated only when there is demand for heat or cool, with some exceptions.
Note: Several Service Menu options affect the fan operation (See Advanced
Con guration in the “Performance PRO T12000 Series Installation Guide.”)
System key
Used to control operating mode of Performance PRO T12000 Series thermostats. Available
options are dependent on system type selected (see Advanced Configuration in “Performance
PRO T12000 Series Installation Guide”). System modes:
HEAT – Select for the system to operate in heating mode only. Only one setpoint is displayed.
COOL - Select for system to operate in cooling mode only. Only one setpoint is displayed.
AUTO – Allows system to control to both the Heat and Cool setpoints. The system will
automatically change over between heating and cooling modes as room temperature
varies. Cool Setpoint must always be greater than Heat Setpoint by the deadband value.
OFF – Disables all thermostat outputs; only zone temperature and time are displayed.
EMERGENCY (Em) – Emergency heat can be used when the Heat Pump cannot keep up
with the heat load. Use Service Menu 110 (System Type 6 & 11) to enable.
1
2

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PRESS ANY KEY TO BEGIN
Note: Deadband is the user-de ned minimum difference between the Cool Setpoint and
Heat Setpoint (see Service Menu 380).
Schedule key
Used to view Schedule Display and program two or four scheduled events per day (with Heat
and Cool Setpoints) including Occupied1, Occupied2, Unocc1, or Unocc2.
Holiday key
Used to view Holiday Display and schedule up to 20 different holidays.
Clock key
Used to view the clock format (12 or 24 hour) and to set the clock time.
Cool Setpoint & Heat Setpoint
Used to create a temporary override of current setpoint temperature. Pressing Cool Setpoint or
Heat Setpoint shows Override Display. User selects desired Heat and Cool Setpoints and “Hold
Until” time for Override, using time ▲/▼keys. (Cool Setpoint is greater than Heat Setpoint by
deadband.) Note: Available options depend on system type selected.
Override key
Used to view Override Display and create a temporary override of scheduled events. Heat
Setpoint, Cool Setpoint, and override time may all be adjusted from Override Display.
TEXTTEXTTEXTTEXTTEXT
PRESS ANY KEY TO BEGINPRESS ANY KEY TO BEGIN
KEY OPERATION (CONT.)KEY OPERATION (CONT.)KEY OPERATION (CONT.)
TEXTTEXTTEXTTEXTTEXTKEY OPERATION (CONT.)TEXTTEXTTEXTTEXTTEXTKEY OPERATION (CONT.)TEXTTEXTTEXTTEXTKEY OPERATION (CONT.)TEXTTEXTTEXTTEXTTEXT
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4
5
6
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PRESS ANY KEY TO BEGIN
Temporary Override – The active setpoint is taken from setpoints de ned in the Override
menu. (In Home Display, “Override”  ashes during the override time period if selected.)
Screen key
Press Screen key:“Clean Screen”  ashes for 30 seconds, allowing cleaning with no key input.
Service Indicator
Icon appears to notify the user that the remote temperature sensors are reading out of range.
Battery Indicator
Icon shows battery’s current charge level in segments. Two AA Alkaline batteries
(2.6 – 3.1VDC) have an approximate 1-year life expectancy.
Keypad Lockout
Icon appears if any type of keypad lockout is active. Keypad lockout blocks access to certain
features of the thermostat. (See Service Menu 340 to enable key pad lockout).
Filter Indicator
Icon appears in the Default Display when the reminder timer expires (see service menu 230).
The thermostat will continue to return to the filter menu until the Done key is pressed. After the
Filter Indicator icon appears, pressing Done will restart the filter timer.
Secure Digital (SD)
Icon appears (flashes) when SD card is inserted (optional SD card not provided). SD card
functionality allows user to upload/download settings to/from a PECO-formatted SD card (see
section “Load SD card settings” ).
TEXTTEXTTEXTTEXTTEXT
PRESS ANY KEY TO BEGINPRESS ANY KEY TO BEGIN
KEY OPERATION (CONT.)KEY OPERATION (CONT.)KEY OPERATION (CONT.)
TEXTTEXTTEXTTEXTTEXTKEY OPERATION (CONT.)TEXTTEXTTEXTTEXTTEXTKEY OPERATION (CONT.)TEXTTEXTTEXTTEXTKEY OPERATION (CONT.)TEXTTEXTTEXTTEXTTEXT
Filter
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1. From the Home Display, Press Clock
key.
2. Press ▲/ ▼ to select 12 or 24 HR
format, then press Clock.
3. Press ▲/ ▼to select clock hour, then
press Clock.
4. Press ▲/▼to select clock minutes, then
press Clock.
5. Press ▲/ ▼ to select clock year, then
press Clock.
6. Press ▲/ ▼ to select current month,
then press Clock. Note: Month
appears.
7. Press ▲/ ▼to select current numerical
date. Note: Days appears.
8. Press Done to  nish Clock mode.
SET THE CLOCK, MONTH, AND DAYSET THE CLOCK, MONTH, AND DAYSET THE CLOCK, MONTH, AND DAY
Note: At any time, press Cancel
to abort current selection and return to
Home Display, or press Done to save
changes and return to Home Display.
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PRESS TOUCHSCREEN TO BEGIN
In Clock mode press ▲/ ▼to select clock hour.

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1. Press the lower left and lower right
touchscreen areas simultaneously for
about  ve seconds. Note: Service Menu
“100” appears with default value.
2. Press Cool ▲/ ▼ continuously until
Service Menu “260” appears.
3. In Service Menu 260, Press ▲/ ▼to
select the desired temperature display:
• “1” for Fahrenheit (default)
• “0” for Celsius
4. Press Done when you have completed
your selection.
SELECT FAHRENHEIT OR CELSIUS TEMPERATURESELECT FAHRENHEIT OR CELSIUS TEMPERATURESELECT FAHRENHEIT OR CELSIUS TEMPERATURE
Note: To custom configure thermostat
settings, access more Service Menus
(See Advanced Configuration in the
“Performance PRO T12000 Series
Installation Guide”).
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Note: After you complete your selection,
Home Display shows the temperature in
the format selected.
After entering Service Menu mode, press
Cool ▲/ ▼continuously until menu “260” appears.
Use the ▲/ ▼keys to select Service Menu option.

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1. Press Fan to set fan operation.
2. Press Fan to select “On,” or “Auto.”
Note: Selected option  ashes.
3. Select Done to save changes.
Note: “On” mode indicates continuous
output. “Auto” mode indicates that fan
is activated only when there is demand
for heat or cool. Some exceptions
apply (see Advanced Con guration in
the “Performance PRO T12000 Series
Installation Guide”).
SELECT THE FAN MODESELECT THE FAN MODESELECT THE FAN MODE
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PRESS TOUCHSCREEN TO BEGIN
Note: At any time, press Cancel to abort
current selection, or press Done to save
changes and return to Home Display.
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In Fan mode, p ress Fan continuously to select
desired option.

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1. Press System to show system
preferences.
Note: Selected option  ashes.
2. Press System continuously and
select Heat, Cool, Auto, Off, or
Em (Emergency) Heat.
3. Press Done to save changes.
In “Heat” and “Cool” modes, only one setpoint
is displayed for each, and only the selected
mode (e.g.,Heat) is applied. “Auto” mode
switches automatically between Heat and
Cool. Auto controls the room’s temperature
to the programmed Heat and Cool Setpoints.
“Off” mode disables all thermostat outputs;
and only the zone temperature and clock are
displayed. If Emergency (Em) heat is enabled
in a Heat Pump system, Emergency acts as
the primary heat source.
SELECT SYSTEM MODESELECT SYSTEM MODESELECT SYSTEM MODE
Note
: System modes available are
dependent upon which system type is
selected (see Service Menu 110).
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PRESS TOUCHSCREEN TO BEGIN
Press System continuously to select System
Mode preference. The selected option flashes.

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RESET FILTER TIMERRESET FILTER TIMERRESET FILTER TIMER
The Filter Indicator serves as a reminder to
change the furnace  lter (see note below).
When the  lter timer expires, a Filter Indicator
appears.
1. From the Default Display, press any key
to enter the Filter mode (FIL/Filter,
Cancel and Done appear).
2. Press Done to reset the  lter timer.
Note: Pressing Done restarts  lter timer
with previous time value selected.
3. Press Cancel to bypass the reminder
and return to the Home Display.
PRESS TOUCHSCREEN TO BEGIN
Note: The thermostat will return to the
Filter menu from the Default Display until
Done is selected (see Service Menu
230 in the “Performance PRO T12000
Series Installation Guide” for settings).
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When the filter expires, the Default Display on the
thermostat will automatically show a Filter Indicator
in one of the two above locations.

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Each day has two or four scheduled events ( Occupied1, Occupied2, Unocc1, and Unocc2 )
per day, depending on Service Menu configuration. Each event can be programmed with a
start time and Heat and Cool Setpoints. Heat Setpoint controls system heating during cold
weather. Cool Setpoint controls system cooling during hot weather. The T12000 Series is
preprogrammed with factory default settings for seven days of the week as follows:
Time Period Start Time Heat Setpoint
Temperature
Cool Setpoint
Temperature
Occupied1 8:00 am 70° F (21° C) 75° F (24.0° C)
Unocc1 10:00 pm 55° F (10° C) 85° F (29.5° C)
Occupied2 — — —
Unocc2 — — —
Note: To change the preprogrammed times and/or setpoint temperatures, follow the
instructions under “Program scheduled events.”
Note: See Service Menu 240 to enable two or four scheduled events per day.
PROGRAM THE THERMOSTAT (T12500 MODELS ONLY)PROGRAM THE THERMOSTAT (T12500 MODELS ONLY)PROGRAM THE THERMOSTAT (T12500 MODELS ONLY)
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Schedule two or four events per day:
Occupied1, Occupied2, Unocc1, and Unocc2.
1. Press Schedule to view options.
2. Press OCC1, UNOCC1, OCC2,
or UNOCC2 to schedule event.
Note: See Service Menu 100 to select
schedule format. See Service Menu 240
to enable two or four events per day.
3. Press Edit to create settings for an
event. Note: OK to Pick Multiple Days
appears below days.
4. Press day(s) desired. Note: Selected
day(s) shows square,e.g.:
(Optional: Select/ deselect more days to
program multiple days simultaneously.)
5. Press ▲/ ▼to schedule start time
(in 15-minute increments) for the event.
PROGRAM SCHEDULED EVENTSPROGRAM SCHEDULED EVENTSPROGRAM SCHEDULED EVENTS
PRESS TOUCHSCREEN TO BEGIN
MON
Note: Unless Occupied1 and Unocc1
are programmed, their factory default
settings will apply.
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Press Edit to assign settings for a scheduled event.
Example shows OCC1 settings for weekdays.

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Now select a Heat Setpoint and Cool Setpoint
for the scheduled event (available options
depend upon system type selected).
6. Press Cool ▲/ ▼to select Cool
Setpoint.
7. Press Heat ▲/ ▼to select Heat
Setpoint.
8. Schedule next event (e.g.,UNOCC1)
and repeat steps 2-7.
Note: Previously selected days remain
active for programming unless changed.
9. Press Done to exit Schedule mode.
PROGRAM SCHEDULED EVENTSPROGRAM SCHEDULED EVENTSPROGRAM SCHEDULED EVENTS
Note: To program 5-1-1 day or
5-2 days format, see Service Menu 100
( “Performance PRO T12000 Series
Installation Guide”).
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PRESS TOUCHSCREEN TO BEGIN
Note: At any time, press Cancel to abort
current selection, or press Done to save
changes and return to Home Display.
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Create another scheduled event after OCC1.
See Step 8.
Example shows UNOCC1 settings for weekdays.

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Override allows temporary override of heat or
cool settings (example uses System Auto).
1. Press Override key.
Note: “Hold until” time appears and is
changed to show length of override (up
to the maximum hold time speci ed in
Service Menu 395).
2. Press Cool ▲/ ▼to select a Cool
Setpoint.
3. Press Heat ▲/ ▼to select a Heat
Setpoint.
4. Press ▲/ ▼to adjust time (in 15-minute
increments) override remains in effect.
5. Press Done to save changes and exit.
Note: Override remains ( ashing) in
effect until the time period ends.
Note: Press Cancel to exit Override.
PROGRAM OVERRIDEPROGRAM OVERRIDEPROGRAM OVERRIDE
PRESS TOUCHSCREEN TO BEGIN
Note: Available setpoints are determined
by the system mode selected (see “Select
system mode”) .
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Note: The installer setup can limit override
to 1, 2, 3, or 4 hours beyond current time.
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Example shows how to select a Cool Setpoint that
lasts until 12:30 pm in System Auto mode.

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If thermostat is model T12532-IAQ, a humidity
sensor is present, which allows user to set
dehumidify and humidify control setpoints.
1. Press lower left and lower right keypad
area to activate Service Menus.
2. Press Cool ▲/ ▼for Service Menu
490.
3. Select appropriate option to enable
Dehumidify, Humidify, or both (1, 2 ,or 3).
4. Press Done to return to Home Display.
5. Press Humidity key to set Dehumidify
Setpoint. Beside “dE” Press ▲/ ▼to
select desired Dehumidify Setpoint.
6. Press Humidity key to view Humidify
Setpoint. Next to “hu” Press ▲/ ▼to
select desired Humidify Setpoint.
7. Press Done to save and exit.
Note: Instruction assumes humidity sensor
is installed and is enabled (see Service
Menu 490). Integrated sensors (not
included) must be ordered separately.
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SELECT HUMIDITY SETPOINTS SELECT HUMIDITY SETPOINTS SELECT HUMIDITY SETPOINTS
PRESS TOUCHSCREEN TO BEGIN
Adjust the Dehumidification Setpoint by pressing the
arrow keys.
Press the Humidity key to switch between
Dehumidification and Humidification Setpoint.