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© 2010 D 265 - 07/10
Stand Alone
Advanced
External Input
Off
C.A.
Off
Alert
Fixed Lead
First On / Last Off
First On / First Off
Soft Stop
Rotate
Parallel
Installer
Exercise
Sequential
Stand Alone
Advanced
External Input
Off
C.A.
Off
Alert
Fixed Lead
First On / Last Off
First On / First Off
Soft Stop
Rotate
Parallel
Installer
Exercise
Sequential
Stand Alone
Advanced
External Input
Off
C.A.
Off
Alert
Fixed Lead
First On / Last Off
First On / First Off
Soft Stop
Rotate
Parallel
Installer
Exercise
Sequential
Stand Alone
Advanced
External Input
Off
C.A.
Off
Alert
Fixed Lead
First On / Last Off
First On / First Off
Soft Stop
Rotate
Parallel
Installer
Exercise
Sequential
Stand Alone
Advanced
External Input
Off
C.A.
Off
Alert
Fixed Lead
First On / Last Off
First On / First Off
Soft Stop
Rotate
Parallel
Installer
Exercise
Sequential
Stand Alone
Advanced
External Input
Off
C.A.
Off
Alert
Fixed Lead
First On / Last Off
First On / First Off
Soft Stop
Rotate
Parallel
Installer
Exercise
Sequential
Stand Alone
Advanced
External Input
Off
C.A.
Off
Alert
Fixed Lead
First On / Last Off
First On / First Off
Soft Stop
Rotate
Parallel
Installer
Exercise
Sequential
Alert / Combustion Air
The Alert / Combustion Air DIP switch selects whether a combustion
air damper or alert device is to be connected to the
C.A.
/
Alert
terminals (15 and 16).
Off / Exercise
The Off / Exercise DIP switch selects whether or not the control is to
exercise the primary pump and boiler pumps. If the DIP switch is set
to Exercise, the pumps are operated for 10 seconds after every three
days of inactivity.
Parallel / Sequential
The Parallel / Sequential DIP switch selects whether to modulate
the boilers using parallel modulation or sequential modulation when
operating multiple boilers.
Soft Stop / Off
The Soft Stop / Off DIP switch selects whether or not to provide
the boiler with a Soft Stop. If the switch is set Soft Stop, the control
modulates the burner down to minimum and holds it at the minimum
for an amount of time before shutting off the burner. If the switch is set
to Off, the control turns off the burner at the current firing rate once a
demand is removed.
Rotate / Off
The Rotate / Off DIP switch selects whether or not the control is to
provide Equal Run Time Rotation of the boilers. If the switch is set to
Rotate, the boilers will be rotated accordingly. If the switch is set to
Off, the firing sequence is fixed starting with Boiler
1 to Boiler
3.
Fixed Lead / Off
The Fixed Lead / Off DIP switch selects whether or not the first boiler
is to be included in the rotation sequence. If the DIP switch is set to
Fixed Lead, the first boiler is always the first to fire. This DIP switch is
only active when the Rotate / Off DIP switch is set to Rotate.
First On / Last On or First On / First Off
The First On / Last Off or First On / First Off DIP switch selects
whether the first boiler is the first to fire and the last to shut off or the
first to fire and the first to shut off. This DIP switch is only active when
the Rotate / Off DIP switch is set to Rotate and the Fixed Lead / Off
DIP switch is set to Fixed Lead.
