Burnham K2WT Residential Installation, Operating And Service Instructions page 120

XII. Operation
F. Changing Adjustable Parameters (continued)
"Press"
Factory Setting Range / Choices
Never,
Any Demand,
Central Heat,
No Priority,
Central Heat,
Central Heat,
Optional Priority
Optional Priority
Central Heat Only,
Optional Priority:
Never
Any Demand,
Any Demand
Header Sensor
Demand,
CH, Off for DHW
Never,
Primary Loop
Piped IWH
Primary
Loop Pipe Boiler Piped IWH
IWH
Auxiliary Heat
Loop:
120
button to access the following parameters:
System Pump run pump for:
Activates the system pump output according to selected function.
Never:
Any Demand:
Central Heat, No Priority:
Central heat, Optional
Priority:
Central Heat Only,
Optional Priority:
heat.
Boiler Pump run pump for:
Activates the boiler pump output according to selected function.
Never:
Any Demand:
Header Sensor Demand: Pump Runs when boiler is firing and when there is DHW
CH, Off for DHW:
Domestic Pump run pump for:
Activates the Domestic pump output according to selected function.
Never:
Primary Loop Piped IWH: Pump Runs during domestic hot water call for
Boiler Piped IWH:
Auxiliary Heat Loop:
Parameter and Description
Pump is disabled and not shown on status screen.
Pump Runs during any call for heat.
Pump Runs during central heat, auxiliary 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.
Pump Runs during central heat, auxiliary 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.
Pump runs during central heat and frost protection call for
Pump does not start for Auxiliary Heat or DHW call for heat.
The pump will be forced off when DHW priority is active. This
option allows the system pump output to be used as a zone
pump.
Pump is disabled and not shown on status screen.
Pump Runs during any call for heat.
demand. Selected when Header Sensor is selected as
modulation sensor and boiler is a stand alone boiler.
Pump runs during central heat, auxiliary heat and frost
protection call for heat and will be forced off if there is a DHW
call for heat and DHW priority is active.
Pump is disabled and not shown on status screen.
heat. Domestic Hot Water Priority enable/disable
does not affect pump operation.
Pump runs during DHW demand. Pump is forced off during
central heat demand when 1) DHW priority is disabled or 2)
DHW priority is enabled and DHW demand has remained on for
longer than Priority Time.
Pump runs during Auxiliary Heat and frost protection call for
heat. Pump does not start for Central Heat or DHW call for
heat. The pump will be forced off when DHW priority is active.
This allows the DHW pump output to be used as a zone pump.
107672-03 - 5/18