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heat loss curve or the higher the operating efficiency. The closer a selected setting is to G, the steeper the
heat loss curve or the lower overall heat pump system efficiency. If knob is turned to “full” the WF II
will automatically put all stages of electric to full capacity.
COMMENT:
When using with non-heat pump and OT sensing, this dial is also involved with a
temperature ramp-up function. In order to provide maximum electric heat efficiency it is still
desirable to use a setting which provides ramp-up. However, instead of working with settings B
and C common with heat pumps it may be okay to work with C or D for straight resistance.
Heat Loss Curve
Within the “brain” of the WarmFlo controller is a relationship of supply temperature (ST) to outdoor
temperature (OT) measurement. As it gets colder outside, the higher needed the supply temperature in
order to properly overcome the heat loss within the structure. This is the diagonal line between 67°
outdoor and maximum Btuh (heat loss) at the coldest outdoor temperature. The slope of this line or the
exact warm air position at the coldest temperature is established by the “efficiency” adjustment knob or
dial.
Factory set per table and chip on order sheet.
