Filter
Top Products
Heat
pump
systems usually
have a supplemental,
"second stage" heating
system that operates only
when necessary. This heat
pump thermostat is designed
to minimize more expensive
second-stage operation,
indicated
bv
the areen
AUX
light on yo& swiching
subbase.
operates continuously
during
the recovery period. This may
appear to waste energy, but actually is more efficient.
Multiple
ON-OFF
cycles are neither necessary
to
achieve
cornfort, nor are they as efficient for heat pump systems. By
reducing the number of cycles,
you
reduce the strain on
your system and extend equipment life.
With this thermostat, you will notice that your compressor
6
MILD
WEATHER
OUTDOORS
INDOORS
AUXILIARY
HEATING
ELEMENT
OFF
INDOOR
AIR
0.
:
..
HEAT
TRANSFER MS06LI
In
mild weather, viflually
all
of the demand for heal
in
buildings
can be met
by
the heat
pump
compressor. This "First Stage"
process of moving heat indoors is very economical.
AS
the
air becomes colder outside, the first stage may be unable to
deliver enough heat to maintain the desired comfort level
in the building.
SEVERE WEATHER
OUTDOORS
INDOORS
AUXILIARY
HEATING
ELEMENT
ON
INDOOR
AIR
-
US078
During
high
heat demand, the thermostat will call for additional
"Second Slage"power from the auxiliary heat system. This
auxiliary heat
is
commonly electric "resistance" heat and is
two
to three times more expensive to operate than the compressor.
If
you have specific questions concerning the the operation of
your heat pump, please contact the equipment manufacturer.
7