Boiler Control Instruction & Operation Manual, Rev 1
Page
43
of 64
Setup & Tuning
Parameter Adjustment
Lead L
ag
Master Continued
Factory
Setting
Range /
Choices
Parameter and Description
187 (ºF) 50 to 190 (ºF)
Lead Lag Outdoor Boost Maximum Off Point
Maximum value the setpoint can reach due to boost function. Should be set to match
Central Heat Setpoint.
22
0 to 400
Lead Lag Proportional Rate (Modulation page)
Proportional Gain value for Sequencer control modes. A larger gain value results in
tighter, more active, PID control. Gain is the primary PID modulation rate tuning
adjustment and provides the immediate modulation rate response. Pick a gain based
on the desired initial response. The burner modulation rate can oscillate if the
Proportional Gain is too large.
7
0 to 400
Lead Lag Integral Rate (Modulation page)
Integral gain value For Sequencer control Modes. A larger value makes the Integral ramp
in less time (i.e., faster). Integral is a secondary PID modulation rate tuning adjustment
that ramps the output over time (typically minutes). Based on the selected Local PID P,
select the corresponding (from above table) Integral value. Repeats per minute between
0.5 and 2.0 are typical. The burner modulation rate can oscillate if
the Integral time is too large.
