DEFAULT SETTINGS & MENU ITEM DESCRIPTIONS
HeatNet Control REV 1.38-1
Page 51
ADAPTIVE MOD
MOD MODE
ADAPTIVE
If MODulation MODE is set to ADAPTIVE on the Master
boiler, the Master lowers the system modulation rate of all
currently running boilers before a newly started boiler enters
the Main Valve state. Upon entering the Main Valve state of
a newly fired boiler, the Master waits the DELAY RELEASE
time before allowing the PID to resume modulation control.
With MOD MODE set to ORIG KN, The Master boiler keeps
firing at the current modulation rate when a new boiler is
added and lets the PID adjust modulation rate accordingly.
DROP DOWN
ON CALL
If drop down is set to ON PILOT and MOD MODE =
ADAPTIVE, and when a newly added boiler starts, the
system waits until it enters its PILOT state before bring the
system modulation down. This allows for the system to
prepare for the new energy that is to be introduced. If DROP
DOWN is set to immediately, the system modulation is
lowered as soon as the newly added boiler is called.
DELAY RELEASE
0s
Once the Main Valve opens on the newly added boiler and
the MOD MODE = ADAPTIVE the Master waits this amount
of time before releasing the PID to control modulation. This
allows for the newly added boiler to accumulate some soak
time.
FIRING MODE
MODE
TRUE
LOFO: Boilers are fired Last On, First Off starting with Lead
Boiler
FOFO: Boilers are fired First On, First Off
TRUE: Boilers are fired based on the runtime they report
back to the Master boiler. Boilers with the least runtime are
fired first and boilers with the most runtime are stopped first.
MIXED: Different types of boilers can be mixed in a system
and fired based on (2) Priority sets. Boilers are started and
stopped with in the Priority sets based on their runtime
hours.
MIN RUNTIME
10
(1-255)
When the firing rotation is based on runtime, this value
represents the interval in hours of runtime before rotation
occurs. Boiler to Boiler.
MIN OFF TIME
0
(0-10m)
This is the time in minutes that the boiler must remain OFF
before it can be fired again.
PREDICT START:
YES
YES/NO
YES: Predicts the boiler restart point in the heating band
while the temperature of the boiler is drifting down through
the band. The
purpose of this is to ensure the temperature remains in the temperature band. It also minimizes temper
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