Prolon VC2000 Series - Page 95

Proportional Component
Integral Component
Zone Demand
Integral Time
Integral Component = x Proportional Component
Time Elapsed
30 minutes
Integral Component = x 50 %
15 minutes
Integral Component = 0.5 x 50 %
Integral Component = 25 %
Zone Demand = Proportional Component + Integral Component
Zone Demand = 50 % + 25 %
Zone Demand = 75 %
1/2 Proportional Band
Proportional Component = x 100 %
Heating Setpoint - Space Temperature
1/2 (4 °F)
Proportional Component = x 100 %
70 °F - 69 °F
2 °F
Proportional Component = x 100 % = 0.5 x 100 %
1 °F
Proportional Component = 50 %
After15minuteshaveelapsed,andthespacetemperaturehavingremainedat69ºF,thezonewillhavea75%heatingdemand.
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