FULTON Vantage VTG 2000 - Lead; Lag Configuration 3

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 Lead / Lag Configuration 3
Figure 24 – Lead / Lag Screens Page 3
 Modulation at Next Stage CV: Defines the firing rate of the boiler before each consecutive stage. For
example if the Modulation at Next Stage CV is 20% when the lead boiler is running then the ModSync will
allow it to run up to a 20% firing rate before when it brings on the lag 1 boiler.
 1
st
Lag Stage Start CV: Defines the CV (as generated by the PID) that enables the lag 1 boiler. This will
also determine the point at which the lead boiler will be at the Modulation at Next Stage firing rate %.
 1
st
Lag Stage Stop CV: Defines the CV (as generated by the PID) that disables the lag 1 boiler.
 Additional Lag Enabled CV: Additional CV percentage that is added to the 1
sst
lag stage start CV and 1
st
lag
stage stop CV for each additional boiler.
Boiler Position
Lead
Lag 1
Lag 2
Lag 3
Lag 4
Start CV:
0%
20%
30%
40%
50%
Stop CV:
0%
10%
20%
30%
40%
Example start and stop CV percentages based on the settings in Figure 24