© 2010 D 270 - 08/10
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Outdoor
Current outdoor air temperature as measured by the
outdoor sensor.
-76 to 149°F
(-60 to 65°C)
Room
Current room air temperature as measured by the indoor
sensor.
This item is only available when an indoor sensor is connected to
the control.
23 to 113°F
(-5 to 45°C)
Boiler Supply
Current boiler supply water temperature as measured
by the boiler supply sensor.
-22 to 266°F
(-30 to 130°C)
Boiler Target
Boiler target temperature is the temperature the
control is currently trying to maintain at the boiler supply sensor
+/- ½ of the differential.
– – –, 35 to 230°F
(– – –, 2 to 110°C)
B3
Boiler Modulation
Current percent modulation of the boiler’s burner.
0 to 100%
Boiler Hours
The total running time of the boiler since this item
was last cleared. To clear this item, press the and button
simultaneously while viewing this item.
0 to 1999 hr
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Description
Range
Section
Installer
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