TSBC Instruction Manual Page 34 of 48
Configuration & Tuning
Setup Menu (Continued)
No. Range / Choices Parameter and Description
61 0 to 10000
Mixing Valve P
Proportional Gain value for boiler Inlet temperature sensor control mode.
A larger gain value results in tighter, more active, PID control. Gain is the
primary PID modulation rate tuning adjustment and provides the
immediate mixing valve modulation response.
Pick a gain based on the desired initial response. The mixing valve can
oscillate if the Proportional Gain is too large.
62 0 to 10000
Mixing Valve I
Integral gain value for boiler inlet temperature sensor control mode. A
smaller 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 Mixing Valve P, select the corresponding (from
table on previous page) Integral value. The mixing valve can oscillate if
the Integral time is too small.
63 0 to 10000
Mixing Valve D
The Derivative gain value for boiler inlet temperature sensor control mode.
A larger Derivative gain value produces a larger PID output contribution
proportional to the rate of change of the error (Setpoint – Boiler Inlet
Temperature). When set equal to zero it has no effect on the output.
64 0 to 10000
Max Delta T P
Proportional Gain value for boiler differential (boiler outlet minus inlet
temperature sensor) temperature control mode. Refer to Local PID P for
explanation.
65 0 to 10000
Max Delta T I
Integral Gain value for boiler differential (boiler outlet minus inlet
temperature sensor) temperature control mode. Refer to Local PID I for
explanation.
66 0 to 10000
Max Delta T D
Derivative Gain Term for boiler differential (boiler outlet minus inlet
temperature sensor) temperature control mode. Refer to Local PID D for
explanation.
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