Overview of Primary Product

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Control Operation
The boiler control features four push buttons at the
bottom of the display to select and adjust parameters.
Tool Button
Use the Tool button to access fields to configure the
boiler operating parameters in relation to the type of
heating system using the boiler.
– and + Buttons
The – and + buttons select an item or adjust a value.
Light Bulb Button
The Light Bulb button allows the display to illuminate
in one of the following two modes:
1. A period of 10 seconds each time a button is
pressed, or
2. Continuous illumination
Press the Light Bulb button
to change the mode
of activation.
Adjustment Procedure
For proper operation, select the boiler operating
parameters to tell the boiler which type of application
it will operate to properly meet performance
expectations.
1. Press the Tool button
for two (2) seconds
and release. A selection menu will appear.
2. Make a selection with the – and + buttons.
3. To switch to the next menu, press the Tool button.
After setting the parameters, the controller will
automatically return to normal view but the user can
change the target temperature without having to go
through all the menus.
Note: If the buttons remain untouched for a period
of 10 seconds, the controller will register the value
of the selection made and return to the normal
operating display.
Note: In case of a power failure, all parameters will
be restored as they were before the failure.
Target Temperature Fine Adjustments
Pressing the – and + buttons can offset the
programmed target temperature without going
through the Tool menus. When pressing the – and +
buttons, the value “0” will appear and blink to show
a “0” offset value from the original settings. Press the
+ or – buttons to change the offset value +/-10°F
from the original settings on the adjustment menus.
The new value will blink for five (5) seconds and the
display will return to the standard view, showing the
new target temperature. After this adjustment, when
pressing the – and + buttons, the display will show the
value of the previous offset.
Boost System Operation
The boiler control incorporates a unique feature that
allows the target boiler temperature to automatically
increase when the room thermostat cannot be
satisfied within a pre-determined period (15 minutes
for cast-iron radiator and baseboard applications;
20 minutes for radiant heating applications).
Note: This pre-determined period cannot be
changed.
Some examples include:
• A return to normal heat load after low-demand
periods during sunny days.
• Long periods without heating requiring higher
boiler temperatures to recuperate.
• Return to normal room temperature after night
set back periods.
The boiler control will engage the Boost program
when the heat demand on the TT terminals has been
maintained for a pre-determined period according
to the type of application selected. Once the
pre-determined time period is reached, the Boost
icon (up arrow) will appear on the display and the
boiler target temperature will start increasing very
slowly over a pre-determined period and up to a
pre-calculated maximum value until the heat demand
applied on the TT terminals has been completed.
On a new heat demand, the previous Boost period
is forgotten and the boiler target returns to its
original settings. If the system is in Boost quite often,
the boiler target parameter established during the
setup procedure is too low for the heating system
application. To increase the boiler target temperature,
press the + button or reset the operating parameters
using the Tool menus.