115
107774-01- 9/17
XIII. Operation F. Changing Adjustable Parameters (continued)
“Press” button to adjust the system pump operation:
Factory Setting Range / Choices Parameter and Description
Central Heat,
No Priority
Central Heat,
No Priority,
Central Heat,
Optional Priority
System Pump run pump for:
Activates the system pump output according to selected function.
Central Heat, No Priority: Pump Runs during central heat, auxiliary heat and frost
protection call for heat. Pump does not start for a DHW call for
heat, but will run during Domestic Hot Water Priority if there is
also a call for space heat.
Central heat, Optional Pump Runs during central heat, auxiliary heat and frost
Priority: protection call for heat. Pump does not start for a DHW call for
heat and will be forced off if there is a DHW call for heat and
Domestic Hot Water Priority is active.
To Next Page
