Braeburn Premier 5050 User manual

5050
OWNERS MANUAL
Premier Series
7-Day Programmable
Single Stage Heat / Cool
Digital Thermostat
Compatible with low voltage single stage gas,
oil or electric heating or cooling systems,
including single stage heat pumps. This
thermostat can also be used on 250mv to
750mv millivolt heating only systems.
Do not use this thermostat on applications
with voltages above 30 Volts AC.
READ ALL INSTRUCTIONS BEFORE PROCEEDING
© 2004 Braeburn Systems LLC All Rights Reserved. Pub. No. 5050-100-002
Store this
booklet for
future reference
Braeburn Systems LLC, as an Energy Star partner
has determined that this product meets the Energy
Star Guidelines developed by the U.S. Environmental
Protection Agency & the U.S. Department of Energy
for maximum energy efficiency.
WARRANTY
YEAR
LIMITED
CONTENTS
WARNING!
Quick Reference Contents Guide
Important Safety Information
FEATURES
SPECIFICATIONS
INSTALLATION
Replacing Existing Thermostat
Installing Your New Thermostat
TESTING YOUR NEW THERMOSTAT
PROGRAMMING
Default Thermostat Settings
Setting Current Time of Day and Day of Week
Setting Temperature Differential and Residual
Cooling Fan Feature
Setting Temperature Differential
Setting Residual Cooling Fan Feature
Setting Your Energy Saving Programs
Tips Before Starting
Using Quick Program Groups
or Individual Day Programming
Entering Your Program
ADDITIONAL OPERATION FEATURES
Review Set Temperature
Temporary Program Override
Permanent Hold (Vacation) Mode
High Temperature Safety Switch
Low Temperature "Freeze" Protection
Compressor Protection
Changing Fahrenheit (˚F) to Celsius (˚C)
Low Battery Detection and Replacement
Replacing the Batteries
Resetting Thermostat
TROUBLESHOOTING
WIRING DIAGRAMS
1
2
3
4
5
6
7
8
5.1
3.1
3.2
5.2
5.3
5.4
6.1
6.2
6.3
6.4
6.5
6.6
6.7
6.8
6.9
5.3.1
5.3.2
5.4.1
5.4.2
5.4.3
6.8.1
• Always turn off power to the air conditioning or heating system prior to installing,
removing, cleaning or servicing thermostat.
• Read this manual thoroughly prior to installing, programming or operating this
thermostat.
• This thermostat is designed for use with a 24 Volt AC low voltage single stage gas
oil or electric heating or cooling system. This thermostat can also be used on
250mv to 750mv millivolt heating only systems.
• Do not use this thermostat on applications with voltages higher than 30 Volts AC.
• This thermostat requires two (2) properly installed "AA" alkaline batteries to
provide power for the thermostat to properly control the system operation.
• The system must have 24 Volt AC power present for proper system operation and
control.
• Wiring must conform to all building codes and ordinances as required by local
and national code authorities having jurisdiction.
• Do not short (or jumper) across terminals on the gas valve or at the heating or
cooling system control board to test the thermostat installation. This could
damage the thermostat and void the warranty.
• Do not select COOL mode of operation if the outside temperature is below 50˚ F
(10˚ C). This could possibly damage the controlled cooling system and may cause
personal injury.
• This thermostat should only be used as described in this
manual. Any other use is not recommended and will void the warranty.
1

FEATURES
SPECIFICATIONS
1
2
2
• Contemporary Styling with Large LCD Display
• 7 Day Programming Flexibility
• Battery Powered (2 "AA" Alkaline batteries included)
• Relay Outputs for Maximum Compatibility
• LCD Display Backlight
• Easy Access Front Battery Door
• Pre-Programmed for Quick Installation
• Meets Title 24 and Energy Star®Energy Saving Guidelines
• Vacation "HOLD" Mode
• Compressor Short Cycle Protection
• Adjustable Temperature Differential
• Residual Cooling Fan Delay
• Low battery Indication
• Quick Wiring Terminal Block
• High Temperature Safety Switch
• Low Temperature "Freeze" Protection
INSTALLATION
3
3.1 Replacing Existing Thermostat
1. Always turn off power to the air conditioning or heating system prior to removing existing
thermostat.
2. Remove the cover of your old thermostat and locate the wire terminals. Do not remove
wires from terminals yet.
3. Using small pieces of masking tape label wires prior to removal from terminals. Use the
chart below to determine the new terminal designations for your new thermostat.
• Electrical Rating: 24 Volt AC (18-30 Volt AC)
2 amp maximum load per terminal
4 amp total maximum load (all terminals)
• Control Range: 45˚ - 90˚ F (7˚ - 32˚ C)
• Accuracy: +/- 1˚ F (+/- .5˚ C)
• DC Power: 3.0 Volt DC (2 AA Alkaline batteries included)
• Compatibility: Compatible with low voltage single stage gas, oil or electric
heating or cooling systems, including single stage heat pumps.
This thermostat can also be used on 250mv to 750mv millivolt
heating only systems.
• Terminations: Rc, Rh, G, W, Y, B, O
Old Terminal from New Terminal for
Existing Thermostat New Thermostat Terminal Description
V or Rc Rc Cooling Transformer
M, 4, Rh, or R Rh Heating Transformer
G or F G Fan Control
H, W or 4 W Heating Control
Y Y Cooling Control
B B Reversing Valve (Heating)
O O Reversing Valve (Cooling)
C None (Cap the Wire) 24 Volt AC, Transformer Common
3
3INSTALLATION
4. After labeling and removing all wires from terminals, unscrew the existing thermostat
mounting base from wall. Make sure to secure wires to prevent them from slipping
back into the hole in the wall.
NOTE: This thermostat is designed for use with a 24-Volt AC low voltage single
stage gas, oil or electric heating or cooling systems, including single stage heat
pumps. This thermostat can also be used on 250mv to 750mv millivolt heating only
systems. Do not use this thermostat on applications with voltages above 30 Volts AC.
3.2 Installing Your New Thermostat
NOTE: If you are installing this thermostat in a new installation be sure to locate
the thermostat 4 to 5 feet above the floor in accordance with applicable building
codes. Make sure to install the thermostat in a location that provides good airflow
characteristics and avoid areas behind doors, near corners, air vents, direct sunlight
or near any heat generating device. Installation in any of these areas could impact
thermostat performance.
1. Always turn off power to the air conditioning or heating system prior to installing your
new thermostat.
2. Place system switch on front of thermostat to OFF position.
3. Place fan control switch on front of thermostat to AUTO position.
4. Remove front of thermostat body from rear body by pressing release latch on bottom
of front body.
5. Place the thermostat rear body (mounting plate) against wall in the desired
thermostat location.
6. Guide thermostat wires through center hole in rear body. Continue to hold rear body
against wall.
7. Mark placement of mounting holes as appropriate and drill using a 3/16" drill bit.
8. Gently tap supplied plastic anchors into the holes in the wall.
cont.
Illustration of round and rectangular
mechanical thermostat exploded
views.

4
INSTALLATION
3
3.2 Installing Your New Thermostat cont.
TESTING YOUR
NEW THERMOSTAT
4
NOTE: Test your thermostat prior to programming any user settings. Pressing the
RESET button will erase any user entries for time of day, day of week, option settings
and programming if previously programmed. This will return all user settings and
return them to their default values. Remember, this will erase all programs entered
by the user.
WARNING!
Read Before Testing
• Do not short (or jumper) across terminals on the gas valve or at the heating or cooling
system control board to test the thermostat installation. This could damage the
thermostat and void the warranty.
• Do not select COOL mode of operation if the outside temperature is below 50˚ F (10˚ C).
This could possibly damage the controlled cooling system & may cause personal injury.
• This thermostat includes an automatic compressor protection feature to avoid potential
damage to the cooling system from short cycling. This thermostat automatically provides
a 5-minute delay after turning off the cooling system output to protect the compressor.
This protection is also present in the heat mode of operation on single stage heat pump
systems to protect the compressor.
cont.
9. Place the thermostat rear body (mounting plate) against the wall in the desired location
making sure the mounting holes are aligned as appropriate and the thermostat wires
are properly inserting through opening in middle of rear body.
10. Fasten the rear body (mounting plate) to wall using supplied screws.
11. Connect wires to quick wiring terminal block as appropriate using the new terminal
designations. Refer to Wiring Diagram section of this manual if required for assistance.
12. Make sure all of the wire connections are secure and are not touching any other
terminal to prevent electrical shorts and potential damage to the thermostat.
13. Turn the front thermostat body over exposing the rear view of the circuit board.
14. Locate the internal fan option switch, HG (Gas) / HE (Elec) on the circuit board. This
switch controls the heating system fan delay. Select gas for gas or oil fired systems.
This will allow the furnace to run for a few seconds before initiating the fan. Select
electric for systems with electric furnace elements that require the fan to come on
immediately.
15. Using your fingers, gently flip the switch towards the HG (Gas) or HE (Elec) selection
which indicates the low voltage heating system the thermostat will control.
16. Locate the internal NORM / HP switch on the circuit board. This switch configures the
thermostat for normal (NORM) heating and cooling systems or heat pump (HP) systems.
17. Using your fingers, gently flip the switch towards the NORM or HP selection which
indicates the low voltage heating system the thermostat will control.
18. Attach front body of thermostat to rear body of thermostat being careful to align the
terminal pins on the front body with the terminal block on the rear body.
19. Open front thermostat door and open battery compartment door.
20. Install two new "AA" alkaline batteries into battery compartment. Make sure to locate
the positive (+) ends of the batteries and match them with the positive (+) terminals
located in the battery compartment.
NOTE: If you installed the batteries prior to accomplishing steps 14 thru 17 then you will
need to reset the thermostat to register your thermostat switch configurations prior to
programming. Gently press the RESET button on the front of the thermostat using a paper
clip or a small pencil tip.
21. Close battery compartment.
22. Restore system power so you can test installation.
5
1. Place the system switch in the HEAT position.
2. Press the button on the keypad until the setpoint temperature setting is a minimum of 3
degrees higher than the current room temperature. The heating system should start within
several seconds.The fan may not turn on immediately due to the heating system built-in fan
delay.
PROGRAMMING
5
5.1 Default Thermostat Settings
5.2 Setting Current Time of Day and Day of Week
1. When in normal operating mode, press DAY/TIME
keypad button. LCD display will be cleared except
for the time, am/pm indicator and the day of the
week. The hour portion of the time will flash.
NOTE: It is important for you to set the current time of day (note AM/PM indicator in
display), and the current day of week correctly to avoid problems with program execution.
Function Status After Reset
Operation Mode Normal Operating Mode
Temperature Hold Permanent and Temporary Hold Cleared
Clock 12:00 pm, Monday
Room Temperature 70˚ F (21.0˚ C), to be renewed within
5 seconds
Setpoint Temperature According to system switch:
62˚ F (17.0˚ C) for Heat or Off,
85˚ F (29.0˚ C) for Cool
Temperature Scale ˚F or ˚C dependent on switch setting
Operating Program DAY program, Monday
Low Battery Warning Off, to be renewed within 5 seconds
Temperature Differential 1˚ F (0.5˚ C)
Residual Cooling 60 Seconds
Short Cycle Protection Timer Reset
Output Relays Off
2. Press the or buttons to set the current hour.
3. Press DAY/TIME button again, the minute portion
of the time will flash.
4. Press the or buttons to set the current minute.
5. Press DAY/TIME button again, the day of the week indicator will flash.
6. Press the or buttons to set the current day of the week.
7. Press DAY/TIME button again and the thermostat will return to normal operating mode.
TESTING YOUR
NEW THERMOSTAT
4cont.
3. Place the system switch in the OFF position. The heating system should stop within several
seconds. On single stage heat pump systems you must wait 5 minutes for the automatic
compressor short cycle protection period to expire, or press the RESET button to bypass this
feature for initial testing purposes. Pressing the RESET button will erase any user entries for time
of day, day of week, option settings and programming if previously programmed.
4. Place the system switch in the COOL position.
5. Press the button on the keypad until the setpoint temperature is a minimum of 3 degrees lower
than the current room temperature.
6. The cooling system should start within several seconds. Place the system switch in the OFF
position. The cooling system should stop within 90 seconds (dependent on the setting of the
Residual Cooling Fan Feature).
7. Place the fan switch in the ON position. The system blower should start.
8. Place the fan switch in the AUTO position. The system blower should stop.

6
PROGRAMMING cont.
5
5.2 Setting Current Time of Day and Day of Week cont.
5.3 Setting Temperature Differential and Residual
Cooling Fan Feature
Setting Temperature Differential
NOTE: The temperature differential settings are the same for both the heating and
cooling systems.
NOTE: If you do not desire to change the residual cooling fan feature setting you can
wait 15 seconds and the thermostat will automatically return to the normal operating
mode. Otherwise, you can press RESUME button again and proceed to the residual
cooling fan feature setting - refer to step 4 below. Pressing the RESUME button twice
will skip the residual cooling fan feature setting and automatically return you to normal
operating mode.
The default settings for the temperature differential and residual cooling fan delay settings
are compatible with most systems and applications. This is normally set at time of installation
and usually does not require any modification under normal operating conditions. If you feel
that your system is turning on too often, or you wish to change the fan delay settings, simply
follow the instructions below.
5.3.1
1. In normal operating mode, press & hold RESUME
button for 4 seconds. LCD display will show
"SPN x˚", where "x" equals the ˚F / ˚C differential
setting. This is the current temperature
differential setting.
The default setting is 1˚ F (0.5˚ C). The room temperature must change 1˚ F (0.5˚ C) from the
setpoint temperature before the thermostat will initiate the system in heating or cooling.
2. Press the or buttons to set the first stage
differential to your desired setting of 1˚, 2˚,
or 3˚ F (0.5˚, 1.0˚, or 1.5˚ C).
Setting Residual Cooling Fan Feature
5.3.2
The default setting is 60 seconds. During the COOL mode of normal operation the fan will stay
on for 60 seconds after the cooling system has satisfied the setpoint temperature and has
turned off the compressor.This allows the system to provide higher efficiency during cooling
operation.
3. Press RESUME button again and the LCD display
will show "FAN xx˚", where "xx" equals the fan
delay time in seconds during the cooling mode of
operation.
4. Press the or buttons to set the residual
cooling fan delay to your desired setting of 0
(disabled), 30, 60, or 90 seconds.
5. Press RESUME button again to return to normal operating mode or wait 15 seconds and
the thermostat will automatically return to normal operating mode.
NOTE: The thermostat will return to normal operating mode automatically after 15
seconds if no key is pressed. It will also return to normal operating mode immediately if
the RESUME button is pressed.
7
PROGRAMMING cont.
5
5.4 Setting Your Energy Saving Programs
Tips Before Starting
5.4.1
• It is important for you to set the current time of day (note AM/PM indicator in display), and the current day
of week correctly to avoid problems with program execution. This must be done prior to entering any
program settings.
• Both the heating and cooling programs use the same setpoint times, but allow different setpoint temperatures.
• This thermostat is pre-programmed with setpoint times and temperatures recommended by the U.S.
Environmental Protection Agency & the U.S. Department of Energy in their Energy Star program. These
settings provide efficient energy savings during normal heating and cooling modes of operation. Review
these time and temperature settings prior to establishing your personal program settings to maximize
your savings, & minimize programming requirements.
• Make sure you place the system switch in the HEAT or COOL modes of operation as appropriate.
The thermostat will not allow you to enter a program in the OFF position.
• When you place the system switch in the COOL,OFF, or HEAT modes of operation, the appropriate
indicator will also appear in the LCD display when the system is running.
• When you place the system switch in the OFF mode the display will indicate OFF.
5.4.2 Using Quick Program Groups or Individual Day Programming
Whole Week –
allows you to program all seven days (M, TU, W, TH, F, SA, SU will show in display) at the same
time. Then you can use individual day programming to fine tune your program for the few
setpoint times or temperatures that you may wish to change.
Weekday –
allows you to program all the weekdays (M, TU, W, TH, F will show in display) at the same
time. Then go to Weekend group mode to finish programming your weekend setpoint times
and temperatures. Individual day programming can be used to fine tune your settings to
match your daily needs.
Once you enter program mode, you can select the Quick Program Group or Individual Day
Programs as you desire.
See Entering Your Program section
You can select one of three Quick Program Groups or Individual Day programming to allow
you to change the daily setpoint times and temperatures to meet your individual schedule
needs. The Quick Program Groups can be used to set the main portion of your schedule,
allowing you to later modify specific days of the week as required using the Individual Day
programming capabilities.
Daily HeatCool
Setpoint TimeTemperatureTemperature
MORN6:00am70˚F(21.0˚C)78˚F(26.0˚C)
DAY8:00 am62˚F(17.0˚C)85˚F(29.0˚C)
EVE6:00 pm70˚F(21.0˚C)78˚F(26.0˚C)
NIGHT10:00pm62˚F(17.0˚C)82˚F(28.0˚C)
NOTE: To erase all entered programs, current time of day, day of week and other
user settings, gently press RESET button using a paper clip or a small pencil tip. This
will return all Thermostat settings to their default values. Remember, this will erase all
programs entered by the user.
5.3 Setting Temperature Differential and Residual
Cooling Fan Feature cont.
Setting Residual Cooling Fan Feature cont.
5.3.2
5.4.3

8
PROGRAMMING cont.
5
5.4 Setting Your Energy Saving Programs cont..
5.4.2 Using Quick Program Groups or Individual Day Programming cont..
9
PROGRAMMING
CONTINUES ON PAGE
5
5.4.3 Entering Your Program
Weekend –
allows you to program the weekend days (SA, SU will show in the display) at the same time.
Again, individual day programming can be used to change specific setpoint times or
temperatures.
Individual Days –
allows you to program each day of the week individually to give you the greatest schedule
flexibility. Often used to fine tune programming after initially programming the thermostat
using Whole Week, Weekday or Weekend groups.
1. Place the system switch in the HEAT mode of operation. The display will show HEAT.
2. Press PROG button to enter Program setting
mode. MORN setpoint of the Whole Week Quick
Program Group will be displayed. The display will
show M, TU, W, TH, F, SA, SU to indicating the
whole week is being programmed. The hour
portion of the setpoint time and the AM/PM
indicator will be flashing.
IMPORTANT NOTE! When in group
selection, the thermostat will check if all of the
days of that group have the same program
setpoint times and temperatures. If so, the
time and temperature of the individual setpoint
(MORN,DAY,EVE,NIGHT) will be displayed.
Otherwise, the individual setpoint time and
temperature will be blanked. User is allowed to change the daily programs for this
setpoint time and temperature by pressing the or buttons. This will reset all the
daily programs of the group for that specific individual setpoint (MORN, DAY, EVE,
NIGHT) time and temperature to the startup default for that setpoint. Continued
pressing of the or buttons by the user will change setpoint time and temperature
settings as desired.
3. If you desire to use a different Quick Program Group or Individual Day program mode you
can change by pressing the DAY/TIME button to select another group in the following
sequence, Whole Week - Weekday - Weekend - Monday - Tuesday - Wednesday -
Thursday - Friday - Saturday - Sunday - Whole Week.
4. Once you have finished your Quick Program Group or Individual Day selection. Press the
or buttons to change the time to the desired hour in one hour increments, press PROG
button. The minute portion of the setpoint time will begin flashing.
5. Press the or buttons to change the time to the desired minute in 10-minute
increments, press PROG button. The SET TEMP will begin flashing.
6. Press the or buttons to change the setpoint temperature to the desired setting in 1˚ F
increments (0.5˚ C), press PROG button. The thermostat will now display the DAY setpoint
time and temperature. Again, you will see the hour portion of the setpoint time and the
AM/PM indicator will be flashing.
7. Follow steps 4 through 6 to set the setpoint times and temperatures for the DAY,EVE and
NIGHT setpoints for the Quick Program Group or Individual Day selection for the HEAT mode.
PROGRAMMING cont.
5
5.4 Setting Your Energy Saving Programs cont.
NOTE: To erase all entered programs, current time of day, day of week and other user
settings, gently press RESET button using a paper clip or a small pencil tip. This will return
all Thermostat settings to their default values.
9
6.1 Review Set Temperature
6.2 Temporary Program Override
6.3 Permanent Hold (Vacation) Mode
1. Press and hold or buttons. The current
setpoint temperature will be displayed in the place
of the current room temperature, and the indicator
SET TEMP will be displayed.
2. The display will return to normal operating mode
when the or buttons are released. Continuing
to hold the or buttons for 3 seconds or longer will allow the user to temporarily
override the current programmed setpoint (See Temporary Program Override).
1. Press and hold or buttons for 3 seconds. The
entire display will flash once and the SET TEMP
indicator will be flashing. Release the or
buttons and press the or buttons again as
desired to adjust the set temperature.
2. The display will return to normal operating mode
after 15 seconds or you can press RESUME button.
3. The program indicator (MORN, DAY, EVE OR NIGHT) will be flashing in the display
indicating that a Temporary Program Override is in effect. The Temporary Program
Override will reset when the next setpoint time occurs.
1. Press the HOLD button to permanently bypass the
program schedule. The current setpoint
temperature will be held permanently and HOLD
and TEMP will show in the display.
2. Press the HOLD button again to return the
thermostat to normal program operation.
3. You can view or change your setpoint at any time using the or buttons
(see Review Set Temperature or Temporary Program Override).
ADDITIONAL
OPERATION FEATURES
6
8. Place the system switch in the COOL mode of operation. The display will show COOL.
Follow steps 2 through 6 to program the setpoint times and temperatures for the Quick
Program Group or Individual Day selection for the COOL mode.
9. Repeat steps 3 through 8 for additional Quick Program Groups or Individual Day
programming as required.

10
NOTE: The installer can reset the thermostat and bypass the compressor protection
features by pressing the RESET button. This will erase all entered programs, current
time of day, day of week and other user settings and should only be used during
installation for testing purposes or to reset a thermostat to regain normal operation.
This will return all Thermostat settings to their default values. The user will have to
re-program all of the erased settings.
6.5 Low Temperature "Freeze" Protection
6.6 Compressor Protection
6.7 Changing Fahrenheit (°F) to Celsius (°C)
This thermostat includes an automatic compressor protection feature to avoid potential
damage to the cooling system from short cycling. This thermostat automatically provides a
5-minute delay after turning off the cooling system output to protect the compressor. This
protection is also present in the heat mode of operation on single stage heat pump systems
to protect the compressor.
6.4 High Temperature Safety Switch
While the thermostat is in the HEAT mode of operation (selector switch in the HEAT position),
the thermostat will mechanically turn-off if the room temperature raises higher than 99˚F
(37˚ C). There is also a software feature that will automatically turn-off the thermostat in
HEAT mode if the temperature raises higher than 93˚ F (34˚ C).
WARNING!
Read BEFORE proceeding
Press RESET button using a paper clip or a small pencil tip. This will reset the
thermostat and return all settings to their default values. Verify your thermostat is
controlling your system, see Testing Your New Thermostat. If the problems still persist,
call a professional service technician immediately to verify proper system operation.
WARNING!
Read BEFORE proceeding
Replace the batteries immediately and verify that the thermostat is properly controlling
the heating system by testing the thermostat operation (See Testing Your New
Thermostat). If the problem persists, call a professional service technician immediately
to verify proper system operation.
1. Release the front thermostat body from the rear thermostat body by pressing the release
latch on the bottom of the thermostat.
2. Gently separate the two thermostat halves and turn the front thermostat body over exposing
the rear view of the circuit board.
3. Locate the internal ˚F / ˚C switch on the circuit board.
ADDITIONAL
OPERATION FEATURES
6cont.
While the thermostat is in the HEAT mode of operation, on standard heating (non-heat pump) applications, the
thermostat will mechanically initiate a call for heat if the room temperature drops to less than 41°F (5°C). The
system selector switch must be in the HEAT position for this feature to be active. This feature will allow the
thermostat to initiate a call for heat on standard heating (non-heat pump) applications, to provide a minimum
amount of heat, even if the batteries are dead or missing. This feature is only active on standard heating
(non-heat pump) applications and is not available on single stage heat pump applications.
11
NOTE: Resetting the thermostat by pressing the RESET button will erase all entered
programs, current time of day, day of week and other user settings.
This will return all Thermostat settings to their default values. Changing ˚F / ˚C temperature
scale default should be done prior to installation and before any programming to avoid loss
during reset step.
This thermostat requires two (2) properly installed "AA" alkaline batteries to provide
power for the thermostat to properly control the system operation. The system must
have 24 Volt AC power present for proper system operation and control.
This thermostat is equipped with a low battery detection feature that constantly monitors the
batteries during normal operating mode to determine whether they have sufficient power to
provide proper operation.
When this feature determines that the battery status is low, a low battery indicator will appear
in the display. It is recommended that the batteries be replaced immediately to maintain
system operation and program settings.
6.7 Changing Fahrenheit (°F) to Celsius (°C) cont.
6.9 Resetting Thermostat
6.8 Low Battery Detection and Replacement
Replacing the Batteries
6.8.1
1. Open front thermostat door and locate the battery compartment door.
2. Gently remove the two "AA" alkaline batteries located in the battery compartment.
3. Install two new "AA" alkaline batteries into battery compartment. Make sure to match the
positive(+)ends of the batteries with the positive(+)terminals located in the batter compartment.
4. Close battery compartment and verify that the low battery indicator does not appear
in the display.
The Reset feature allows the user to completely reset the thermostat to register new manual
switch settings.
1. To erase all entered programs, current time of day, day of week and other user settings,
gently press RESET button using a paper clip or a small pencil tip.
2. This will return all Thermostat settings to their default values and register all new manual
switch settings for proper operation.
ADDITIONAL
OPERATION FEATURES
6cont.
4. Using your fingers, gently flip the switch towards the preferred temperature ˚F / ˚C scale.
5. Re-attach the front thermostat body by locating the top mounting lugs and swinging the
thermostat down until the release latch locks.
6. Press the RESET button on the front of the thermostat using a paper clip or a small pencil tip.
This will register the new temperature scale default.

12
TROUBLESHOOTING
7
SYMPTOM POTENTIAL SOLUTION
Verify your program setpoint time entries. The heating and
cooling programs utilize the same setpoint times, but have
individual setpoint temperatures for the MORN,DAY,EVE and
NIGHT setpoints. See Setting Your Energy Saving Program
section of this manual.
Thermostat Program has been temporarily overridden and
program indicator is flashing in display. Wait until next setpoint
and the temporary override will expire or change the setpoint
manually for comfort.
Thermostat program is in Permanent Hold (Vacation) Mode and
HOLD and TEMP is showing in display. Press HOLD button to
release permanent hold and return the thermostat to normal
program operation.
Thermostat turns
heating or cooling
system on too often
or not often enough.
Increase or decrease temperature differential setting as
appropriate to provide the desired performance level. See
Setting Temperature Differential and Residual Cooling Fan
Feature section of this manual.
Thermostat does not
turn on heating or
cooling system.
Check to see if OFF is shown in display. This indicates that the
system is turned off at the thermostat. Move the system
selector switch to the HEAT or COOL position. After the
compressor short cycle protection 5-minute period expires the
system should start within a minutes time.
Compressor protection features may be in effect due to
compressor short cycle conditions, power outages or rolling
blackouts. See Compressor Protection Feature section for full
explanation of this feature.
Heating or cooling system may be malfunctioning. Call a
professional service technician to verify system operation.
Thermostat turns on
heating instead of
cooling.
Check thermostat wiring to make sure that the heating and
cooling stages are connected to the correct terminals on the
wiring terminal block. See Installation and Wiring Diagrams
sections of this manual.
Thermostat turns on
cooling instead of
heating.
Check thermostat wiring to make sure that the heating and
cooling stages are connected to the correct terminals on the
wiring terminal block. See Installation and Wiring Diagrams
sections of this manual.
Thermostat will not
follow program
setpoints.
Check current time of day, day of week program settings. Make
sure to verify AM/PM indicator is accurately displaying desired
time settings. See Setting Current Time of Day and Day of Week
section of this manual.
Check to see if OFF is shown in display. This indicates that the
system is turned off at the thermostat. Move the system
selector switch to the HEAT or COOL position. After the
compressor short cycle protection 5-minute period expires the
system should start within several seconds.
Low battery indicator
is shown in
thermostat display.
Replace batteries immediately to maintain proper system
operation. See Low Battery Detection and Replacement
section of this manual.
OFF is shown in
thermostat display
and heating or
cooling system will
not start.
This indicates that the system is turned off at the thermostat.
The thermostat must be in HEAT or COOL modes of operation to
control the heating or cooling system. Move the system selector
switch to the HEAT or COOL position.
Thermostat display
is blank.
It is possible that the batteries are drained and not providing
power for the thermostat to control the system. Replace
batteries immediately to maintain proper system operation. See
Low Battery Detection and Replacement section of this manual.
If you replace the batteries and the display does not appear, call
a professional service technician to verify thermostat and
system performance.
13
SYMPTOM POTENTIAL SOLUTION
LO is shown in the
thermostat display
where the room
temperature is
normally displayed.
The temperature sensed by the thermostat is lower than the 40˚
F (5˚ C) lower limit of the thermostats display range. The display
will return to normal after the sensed temperature rises within
the 40˚ to 99˚ F (5˚ to 37˚ C) display range. If the temperature in
the controlled space seems to be normal, wait for the
thermostat to acclimate to the correct room temperature. If the
room seems to be colder than usual, turn on the heating system
to raise the temperature as needed for comfort within the room.
This condition could occur from the system being turned off
during a cold weather period or upon installation when the
thermostat has been stored for a long period of time in a cold
vehicle or location prior to being installed. The thermostat
should be allowed to warm up prior to installation to allow
proper heating control once installed.
HI is shown in the
thermostat display
where the room
temperature is
normally displayed.
The temperature sensed by the thermostat is higher than the
99˚ F (37˚ C) upper limit of the thermostats display range. The
display will return to normal after the sensed temperature
lowers within the 40˚ to 99˚ F (5˚ to 37˚ C) display range. Turn on
the cooling system or use other methods to lower the
temperature accordingly.
This condition could occur from the system being turned off
during an exceptionally warm period or upon installation when
the thermostat has been stored for a long period of time in a
warm vehicle or location prior to being installed. The thermostat
is equipped with a mechanical high temperature safety switch
that will turn off the system should the temperature exceed 99˚
F (37˚ C).
TROUBLESHOOTING
7cont.

14
SYMPTOM POTENTIAL SOLUTION
Thermostat will not
allow me to program
a setpoint
temperature higher
than 90˚ F (32˚ C).
This is above the normal thermostat temperature setting range
of 45˚ to 90˚ F (7˚ to 32˚ C).
Thermostat will not
allow me to program
a setpoint
temperature lower
than 45˚ F (7˚ C).
This is below the normal thermostat temperature setting range
of 45˚ to 90˚ F (7˚ to 32˚ C).
Fan continues to run
all the time whether
the system is on or
off.
Check that the fan control switch is in the AUTO position. This
will allow the fan to run only when the heating or cooling system
is turned on and running.
Check thermostat wiring to make sure that the fan control
wiring is connected to the correct terminals on the wiring
terminal block. See Installation and Wiring Diagrams sections
of this manual.
Fan continues to run
in cooling mode when
the system has
turned off.
The Residual Cooling Fan Control Feature can allow up to a 90
second fan delay after cooling system shutdown for energy
efficiency gains. The default setting is 60 seconds. This can be
changed to disable this feature or shorten the time period if
desired. See Setting Residual Cooling Fan Feature section of
this manual.
The room is too
warm or too cold.
See Review Set Temperature section of this manual to verify the
current setpoint and make any modifications that are necessary.
TROUBLESHOOTING
7cont.
15
WIRING DIAGRAMS
8
Rc Rh G
Factory Installed
Jumper
Factory Installed
Jumper
Typical 4-Wire Single Transformer Heating and Cooling System
W Y B O
Heat
Control
Fan
Control
Cool
Control
24 Volt AC
Transformer
120
Volt AC
Hot Side
Transformer
Rc Rh G
Typical 3-Wire Heating System with Fan Control
W Y B O
Heat
Control
Fan
Control
24 Volt AC
Transformer
120
Volt AC
Hot Side
Transformer
Typical 2-Wire 24 Volt AC or 250mV - 750mV Millivolt Heating Systems
Rc Rh G W Y B O
Remove
Factory Installed
Jumper Heat
Control
24 Volt AC
Transformer
or Thermopile
120
Volt AC
Hot Side
Transformer

16
WIRING DIAGRAMS
8cont.
Rc Rh G
Remove
Factory Installed
Jumper
Typical 5-Wire Two Transformer Heating and Cooling System
W Y B O
Heat
Control
Fan
Control
Cool
Control
Cool 24 VAC
Transformer
Heat 24 VAC
Transformer
120
Volt AC
120
Volt AC
Hot Side
Heat
Transformer
Hot Side
Cool
Transformer
Rc Rh G
Factory Installed
Jumper
Typical Single Stage Heat Pump Reversing Valve Active in Cooling
W Y B O
Fan
Control
Compressor
Control
Reversing
Valve
24 Volt AC
Transformer
120
Volt AC
Hot Side
Transformer
Rc Rh G
Factory Installed
Jumper
Typical Single Stage Heat Pump Reversing Valve Active in Heating
W Y B O
Fan
Control
Compressor
Control
Reversing
Valve
24 Volt AC
Transformer
120
Volt AC
Hot Side
Transformer
Braeburn Systems LLC warrants each new Braeburn thermostat
against any defects that are due to faulty material or
workmanship for a period of two years after the original date of
purchase by a professional service technician. This warranty
and our liability does not apply to batteries, nor does it include
damage to merchandise or the thermostat resulting from accident, alteration, neglect, misuse,
improper installation or any other failure to follow Braeburn installation and operating
instructions.
Braeburn Systems LLC agrees to repair or replace at its option any Braeburn thermostat
under warranty provided it is returned postage prepaid to our warranty facility in a padded
carton within the warranty period, with proof of the original date of purchase and a brief
description of the malfunction. This limited warranty does not include the cost of removal or
re-installation.
WARRANTY
YEAR
LIMITED
This warranty gives you specific legal rights and you may also have other rights that vary from
state to state or province to province. Answers to any questions regarding our limited
warranty may be obtained by writing our corporate offices.
Braeburn Systems LLC
2215 Cornell Avenue • Montgomery, IL 60538
Technical Assistance: www.braeburnonline.com
866-268-5599
© 2004 Braeburn Systems LLC All Rights Reserved.
Warranty Facility:
Braeburn Systems LLC
Attn: Warranty Department
2215 Cornell Avenue
Montgomery, IL 60538