104
XII. Operation (continued)
“Press”
button to access the following parameters:
Factory Setting Range / Choices Parameter and Description
Any Demand
Never,
Any Demand,
Central heat, No Priority,
Central Heat, Optional Priority
System Pump run pump for:
Activates the system pump output according to selected function.
Never: Pump is disabled and not shown on status screen.
Any Demand: Pump Runs during any call for heat.
Central Heat, No Priority: Pump Runs during central heat and frost protection
call for heat. Pump does not start for a DHW call for
heat and continues to run during Domestic Hot Water
Priority.
Central heat, Optional Priority: Pump Runs during central heat and frost 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.
Any Demand Any Demand,
Central heat, off DHW demand
Boiler Pump run pump for:
Activates the boiler pump output according to selected function.
Any Demand: Pump Runs during any call for heat.
Central heat, off DHW demand: Pump Runs during central heat and frost 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.
Primary
Loop Pipe
IWH
Never,
Primary Loop Piped IWH,
Boiler Piped IWH
Domestic Pump run pump for:
Activates the Domestic pump output according to selected function
Never: Pump is disabled and not shown on status screen.
Primary Loop Piped IWH: Pump Runs during domestic hot water call for heat.
Domestic Hot Water Priority enable/disable does not
affect pump operation.
Boiler Piped IWH: Pump Runs during domestic hot water call for heat.
Pump is forced off during a central heat call for heat
when Domestic Hot Water Priority “disabled” is
selected and when Domestic Hot Water Priority
“enable” has been selected and the DWH call for heat
has remained on for longer than 1 hour (priority
protection time).
Refer to “Example Pump Parameter selections:’ on the next pages for additional pump setup information.
“Press”
button to access the following parameters:
Factory Setting Range / Choices Parameter and Description
Contractor Name User dened Contractor Name
Address User dened Contractor Address
Phone User dened Contractor Phone
E. Adjusting Parameters (continued)