STEP 1
Definitions
Interval: The
interval is the number of fifteen (15) minute periods that ThermGuard
will wait between turning on the fan.
Duration: The
duration is number of minutes that the fan will be turned on.
STEP 2
ThermGuard Familiarization |
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On the ThermGuard there are the following
items: |
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A red LED indicator labeled
Duration. |
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A green LED indicator labeled
Interval.
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A programming button. |
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An ON/OFF switch. |
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Two wires coming from the top
of the unit. |
STEP 3 Turn on ThermGuard
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Once ThermGuard is
installed, turn the ON/OFF switch to the ON position. ThermGuard will
start by repeating the last programmed state. It will first blink the
green LED to represent the number of fifteen minute periods
between turning on the fan. This time period is also known as the interval.
It will then blink the red LED to represent the number of minutes that
the fan will be on. This time period is also known as the duration. |
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Once the program has
been displayed as described above, ThermGuard will begin to time the number of
fifteen minute periods last programmed, or interval.
When it has completed counting the interval, it will turn on your fan for the
number of minutes, or duration, last programmed. ThermGuard comes
pre-programmed for an interval of two fifteen minute periods or ½ an hour and a duration of five minutes. This
means that when ThermGuard is first turned on, it will turn on your fan for
five minutes every ½ hour. |
STEP
4 Changing the Program
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To
program press and hold the program until the green LED lights up (about 3
seconds). This is your signal that ThermGuard is ready to accept the
interval programming. If you hold the button down too long and the red
LED lights up, just release the button and wait about three seconds.
ThermGuard will restart by repeating the last program and be ready for another
try. |
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Once the green LED
lights up, release the button momentarily. To program the interval you want ThermGuard to wait before turning on your heating
system, simply press the button for the number of fifteen minute periods you
want to wait. In other words, press the button four times to set ThermGuard
for a one-hour interval. The maximum interval is 96 presses, or
24 hours. Once you have tapped in the interval, release the button
until the red LED lights up. This is your signal that ThermGuard is ready to
accept duration programming. |
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When the red LED
lights up, tap in the number of minutes you would like ThermGuard to operate
your fan. The maximum duration is 24 taps, or 24
minutes. When you have tapped the button for the desired duration,
release the button and wait for ThermGuard to repeat your program back to you. |
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ThermGuard will
repeat the program back to you by blinking the green and red LEDs to
correspond with the number of fifteen minute periods and minutes you’ve chosen
for your interval and duration.
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STEP 5 Verify operation
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Once ThermGuard has been installed
and programmed, the proper operation can be verified without actually waiting
for the interval to go by. |
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Turn the ON/OFF switch to the OFF position. |
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Press and hold the programming button while moving the ON/OFF switch to the ON
position. Then, release the programming button. |
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ThermGuard will repeat the last program by flashing the green and red LEDs to
correspond with the interval and duration you’ve chosen. |
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The green LED will flash about once a second for a period of one minute.
After a minute, the red LED will flash once a second for a period of one
minute. This indicates that you are in the special verification mode. When
the red LED is flashing, ThermGuard should be circulating hot water. |
IMPORTANT
Verify that ThermGuard flashes the green and red LEDs for about
one minute each and repeats this cycle. If the green LED flashes for a minute
and the red LED does not flash for a minute (it may flash for a short period
of time), ThermGuard needs to be adjusted for your system. Turn off
ThermGuard and skip to step 6 to adjust ThermGuard’s settings to your system.
IMPORTANT
Go to your furnace and verify that there is no unusual rapid clicking
noises that may be coming from the fan relay. If there is a rapid clicking
noise ThermGuard needs to be adjusted to your system. Turn off ThermGuard and
skip to step 6 to adjust ThermGuard’s settings to your system.
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If
the fan is operating and there are no rapid clicking noises in the from the
furnace, then ThermGuard is working properly and you are done!
Congratulations, you have successfully installed your ThermGuard unit. |
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The last task is to ensure the existing thermostat functions properly.
Turn up the temperature on the thermostat and ensure the system operates.
When operation is verified, set the thermostat to the appropriate level for
your home. When the thermostat cycles your furnace, ThermGuard will
re-initiate the interval countdown once the furnace is turned off. In this way,
ThermGuard will not turn on the fan if the furnace has just been running. |
STEP 6 ThermGuard adjustment to your system
This step is called “ThermGuard adjustment”
and once ThermGuard is adjusted, it will not need to be adjusted again.
ThermGuard will retain the setting even if power is removed from the unit.
This step is only required if ThermGuard is not operating properly with the
factory settings and is usually only required when ThermGuard is connected to
some high-impedance input electrical modules.
There are four configurable power settings
for ThermGuard. These steps will try each setting as required until proper
operation is verified.
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Turn ThermGuard ON/OFF switch OFF then ON. |
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Press and hold the programming button for
about 6 seconds or until the RED (not green) LED lights up. |
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Release the button and tap it two times.
This configures ThermGuard to the second power setting. |
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Release the button and wait for ThermGuard
to repeat the last program by flashing the LEDs. |
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Repeat step 5 to verify operation. |
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If the operation is successful, you are
done. |
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If the operation fails turn the ThermGuard
ON/OFF switch OFF then ON. |
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Press and hold the programming button for
about 6 seconds or until the RED (not green) LED lights up. |
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Release the button and tap it three
times. This configures ThermGuard to the third power setting. |
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Release the button and wait for ThermGuard
to repeat the last program by flashing the LEDs. |
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Repeat step 5 to verify operation. |
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If the operation is successful, you are
done. |
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If the operation fails turn the ThermGuard
ON/OFF switch OFF then ON. |
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Press and hold the programming button for
about 6 seconds or until the RED (not green) LED lights up. |
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Release the button and tap it four times.
This configures ThermGuard to the fourth power setting. |
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Release the button and wait for ThermGuard
to repeat the last program by flashing the LEDs. |
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Repeat step 5 to verify operation. |
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If the operation is successful, you are
done. |
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If there is still a problem, please call
the Bear Mountain Design customer support (406) 587-2478. |
STEP 7 Choosing your Interval and Duration
Each home and situation is different and
this information is presented as an example. Bear Mountain Design has no way of
knowing every situation and therefore created ThermGuard as a user programmable
device. ThermGuard comes with a default interval
of 30 minutes and a default duration of five minutes. If your home needs
more heat distributed from your stove, you can decrease the interval to 15
minutes and increase the duration.
If at any time you wish to know the current
interval and duration settings, momentarily press the programming button the
ThermGuard will blink the LEDs corresponding to the current interval and
duration. ThermGuard will restart the interval timing in response to a button
press.
Tips and Suggestions
Multiple unit synchronization
If
multiple ThermGuard units are installed in one home, they can be synchronized so
that the boiler is heated only once for multiple heating loops. Simply switch
all the units off and turn them all back on within a minute of each other.
This step may need to be repeated occasionally since each time
one of the thermostats cycle, the ThermGuard attached to the thermostat will
restart it’s timing cycle.
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