Bryant Preferredt Series Installation Instructions Manual page 39

Option 33 — Single or Two- Piece Installation
This configuration allows the thermostat to compensate for the amount of heat
generated by the thermostat electronics to allow more accurate sensing of the
temperature sensor. The amount of heat compensation will be different between
single installation and two- piece installation.
Range: 1P or 2P
1P — The installation is single piece.
2P — The installation is two separate pieces.
Default is 2P.
Option 41 — Variable Speed Blower
This selection allows the installer to select between a single speed or variable motor.
Off - The system has a single speed (PSC) blower.
On - The system has a variable speed blower.
Factory default is OF (Off)
Option 44 — Super Comfort Heat
This option is only available on heat pump units HP (HP, H2) when Option 41
(Variable Speed Blower) is set to On and the system has a valid OAT sensor.
OF (Off) - Comfort Heat is off
On - Comfort Heat feature is on.
If the outdoor air temperature is between 12 to 40_F (- 11 to 4_C) and the
compressor is running in heating, then the fan output is turned off. This will signal
the variable speed blower to reduce the air speed. The fan output is turned off even
if the user has the fan selection set to continuous fan. The fan output will be turned
back on in this temperature range if the maximum capacity of auxiliary heat is on
due to system demand (auxiliary heat on in response to a defrost signal shouldn't
cause the fan to turn back on).
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