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STAGING
Proportional & Integral & Derivative (PID) staging to are not used in this application.
STAGE DELAY (STG DLY)
STAGE DELAY (STG DLY) is not used in this application.
BOILER MASS (BOIL MASS)
The boiler mass setting allows the installer to adjust the control to the thermal mass of different types of heat sources used.
The boiler mass setting automatically determines the minimum on time and minimum off time of the burner. A higher thermal
mass setting provides slower cycling, while a lower thermal mass provides faster cycling.
FIRE DELAY (DLY)
The Fire Delay is the delay time that may occur between the time that the control closes the Stage 1 contact and when the
burner fires. This delay is usually the result of a burner pre-purge or other forms of time delay built into the burner's
safety circuits.
BOILER MINIMUM (BOIL MIN)
The BOIL MIN setting is the lowest water temperature that the control is allowed to use as a boiler target temperature.
During mild conditions, if the control calculates a boiler target temperature that is below the BOIL MIN setting, the boiler target
temperature is adjusted to at least the BOIL MIN setting. During this condition, if the boiler is operating, the MIN segment turns
on in the LCD while the boiler target temperature or boiler operating sensor temperature is viewed. If the installed boiler is
designed for condensing or low temperature operation, set the BOIL MIN adjustment to OFF.
BOILER MAXIMUM (BOIL MAX)
The BOIL MAX setting is the highest water temperature that the control
is allowed to use as a boiler target temperature. If the control does
target BOIL MAX, and the temperature at the boiler outlet sensor is near
the BOIL MAX temperature, the MAX segment turns on in the LCD while
the boiler target, boiler inlet, boiler outlet or boiler supply temperature
is viewed.
BOILER TARGET TEMPERATURE (BOIL TARGET)
The boiler target temperature is determined from the mode of operation and the type of demand applied. The control displays
the temperature that it is currently trying to maintain at the operating sensor as BOIL TARGET in the View menu. The operat-
ing sensor for modes 1, 3 and 5 is the boiler outlet sensor, and the operating sensor for modes 2, 4 and 6 is the boiler supply
sensor. If the control does not presently have a requirement for heat, it displays "– – – " in the LCD. There is no boiler target
temperature generated in Mode 7.
BOIL
BOIL
MIN
MIN
WWSD
WWSD
Decreasing Outdoor Temperature
Model SF-10 Control Instructions Manual
BOIL MAX
BOIL MAX
7
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