FULTON Vantage VTG Series Installation And Operation Manual page 114


Temp Deviation: How much the boiler's outlet temperature needs to decrees before the boiler's outlet
monitoring condition is satisfied. For example if the boiler goes into outlet monitoring mode at 150°F and
the Temp Deviation is 10°F then when the boiler's outlet temperature drops below 140°F the boiler's
outlet monitoring is satisfied and the boiler's firing rate will go back to normal.
System and Scaling Screen 3

The System and Scaling Screen 3 provides access to optional features available to the ModSync SE.

Outdoor Reset: Enables the outdoor air temperature sensor and allows access to the outdoor reset
screens and settings.

Return Sensor: Enables the Return Sensor Monitoring.

Isolation Valves: Enables Isolation Valve Control for the boilers. If isolation valves are enables then boiler
pumps are automatically disabled as the ModSync SE uses the same outputs for both functions.

Boiler Pumps: Enables the Boiler Pump control for the boilers. If Boiler Pumps are enabled then isolation
valves are automatically disables as the ModSync SE uses the same outputs for both functions.

Valve/Pump Proving: Enables the Valve/Pump proving function. When the ModSync enables the boilers
Isolation valve or Boiler Pump, the ModSync will wait for a status input from the valve or pump to indicate
that the valve is open or the pump is running before enabling the boiler. An adjustable time delay will be
added that if the status is not made in the selected time frame the boiler will be placed in alarm and a
different boiler will be enabled.

Interface Selection: Allows the selection of the boiler type. Used if boilers are added/removed or
changed after the ModSync has been installed.
Questions? Call (315) 298-8510, or visit us online at www.fulton.com
Figure 10 – System and Scaling Screen 10
23