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heater will be completely separate
from the unit for field supplied
electric heat.
Note: When the unit has boilerless
control, the electric heat is
not used as supplemental
electric heat, but as a primary
heat.
Hot Gas Reheat (option)
With the reheat option, the return-air
from the space is conditioned by the
air-to-refrigerant coil, then reheated
by the reheat coil to control not only
the space temperature, but to also
reduce the relative humidity of the
space. When operating in the reheat
mode (meaning the sensible
temperature has been met in the
space), the humidistat signals the
reheat relay coil to energize, allowing
the high pressure refrigerant gas to
flow from the compressor through
the reheat valve, into the reversing
valve, or reheat coil for
dehumidification.
A switching relay has been provided
for the reheat application to adjust
the blower motor from normal
operation to low speed when the hot
gas reheat is energized (for 1/2
through 5 ton equipment only).
Note: A high static blower motor is
required to support the hot
gas reheat option for the 1/2
through 5 ton equipment.
Note: Units containing the hot gas
reheat option should not be
used as a make-up air unit.
Note: Water regulating valves
should not be used with the
hot gas reheat option. Trane
places a thermal expansion
valve on all WSHPs as well as
GSHPs to regulate refrigerant
flow vs. water flow to the
unit.
WSHP-SVX01E-EN
General Information
7
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