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XII. Operation
F. Changing Adjustable Parameters (continued)
“Press”
button to access the following parameters:
Factory Setting
Range / Choices
Parameter and Description
Central Heat,
Optional Priority
Never,
Any Demand,
Central Heat,
No Priority,
Central Heat,
Optional Priority
Central Heat Only,
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, 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.
Central heat, Optional
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.
Central Heat Only,
Optional Priority: Pump runs during central heat and frost protection call for heat.
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.
Any Demand
Never
Any Demand,
Header Sensor
Demand,
CH, Off for DHW
Boiler Pump run pump for:
Activates the boiler 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.
Header Sensor Demand: Pump Runs when boiler is firing and when there is DHW
demand. Selected when Header Sensor is selected as
modulation sensor and boiler is a stand alone boiler.
CH, Off for DHW: 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.
Primary
Loop Pipe
IWH
Never,
Primary Loop
Piped IWH
Boiler Piped IWH
Auxiliary Heat
Loop:
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 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.
Auxiliary Heat Loop: 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.
Summary of Contents for ASPEN ASPN-320
Page 88: ...88 107750 01 9 17 Figure 10 4 Proper Installation of Header Sensor X Wiring continued ...
Page 89: ...89 107750 01 9 17 Figure 10 5 Internal Wiring Ladder Diagram X Wiring continued ...
Page 90: ...90 107750 01 9 17 X Wiring continued CONDENSATE FLOAT SWITCH ...
Page 91: ...91 107750 01 9 17 X Wiring continued Figure 10 6 Internal Wiring Connections Diagram ...
Page 100: ...100 107750 01 9 17 Operating Instructions XI Start Up and Checkout continued ...
Page 145: ...145 107750 01 9 17 XV Service Parts continued ...
Page 147: ...147 107750 01 9 17 XV Service Parts continued All Models ...
Page 149: ...149 107750 01 9 17 XV Service Parts continued All Models ...
Page 151: ...151 107750 01 9 17 XV Service Parts continued All models ...
Page 157: ...157 107750 01 9 17 ...
Page 158: ...158 107750 01 9 17 ...
Page 159: ...159 107750 01 9 17 ...
