Braeburn 5200 - Manual (Page 8)

Low Battery Detection
This thermostat requires two (2) new,
properly installed “AA” Alkaline batteries
to maintain the system clock and to provide
proper thermostat power when 24 volt AC
power fails or is not connected to the
thermostat. When the batteries start to become
too weak to provide proper operation, the
thermostat will begin to display a low battery indicator.
The low battery indicator is provided to inform the user when the batteries
require immediate attention. We recommend replacing the batteries as soon
as the low battery indicator appears. If the batteries are not replaced after
the low battery indicator first appears, the thermostat may not provide
proper heating or cooling system operation.
Even if the low battery indicator does not appear, the batteries should be replaced
at least once a year, or if you plan on leaving the premises for over a month.
This thermostat can be powered from 24 volts AC or battery power. To determine
if 24 volt AC power is connected to the thermostat, refer to the installation and
wiring diagram section. If you cannot determine how this thermostat is powered,
call a professional service technician to determine the type of installation and the
proper operation of your system.
Locking the Keypad
To prevent accidental or undesired
adjustment of the thermostat, the Keypad
Lock feature disables the operation of the
keypad except for the backlight key. In
order to lock the keypad, press and hold
Both and buttons together at the same
time for 5 seconds. The
LOCK segment in
the display will flash once per second. When LOCK appears continuously, release
both and buttons. The keypad is now locked.
To unlock the keypad, press and hold the and buttons together at the same
time for 1 second. The LOCK segment will disappear and the keypad will
become unlocked.
Adaptive Recovery Mode (ARM™)
In order to maximize comfort and energy efficiency, this thermostat is equipped
with an Adaptive Recovery Mode (ARM™). This feature minimizes the amount of
time required by heating or cooling system to reach the new set point after a
setback period is completed, and assures your desired temperature is achieved
at your set program times. This feature activates when recovering room
temperature from setback programs to comfort programs, so it will only take
place when the current (heating) program set point temperature is lower than the
upcoming program set point temperature, or the current (cooling) program set
point temperature is higher than the upcoming program set point temperature.During
ARM™, room temperature is recovered gradually by turning on the heating or
cooling before the end of the setback period. ARM™ does not operate when the
unit is in the HOLD mode, if the program is temporarily overridden, or if it has
been disabled in the Installer Settings.
Auxiliary Heat Fossil Fuel Option
This thermostat is equipped with an auxiliary heat option which is set at
installation for either an electric or fossil fuel (gas, oil or propane) auxiliary heat
source. For heat pump units with an electric auxiliary stage, both the first and
second stages of heating will run when a call for second stage heat is made.
For heat pump units with a fossil fuel auxiliary stage, the first stage will be locked
out one minute after a second stage heat call, and the second stage alone will
be used.
Compressor Protection
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 heat pump systems to protect the compressor. This delay
can be disabled in installer Option 8 (see section 3).
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 reprogram all of the erased settings.
Additional Operation Features
8
cont.
Additional Operation Features
8
cont.
Circulating Fan Mode–Fan Operation
AUTO: Fan operates as required by heating or cooling system.
:
When heating or cooling is not active, fan will run as needed to ensure
a 35% minimum run time.
ON: Fan will run at all times.
®
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