Carrier A07049 Installation Instructions Manual page 27

OF (off) - - function is disabled. Auxiliary heat is allowed to operate whenever
sufficient demand for heat is available.
5- -55_F - - Outdoor temperature above which the auxiliary heat is not allowed to
operate (unless MODE is set to Emergency Heat).
Default is OF (off).
Option 10 — Reversing Valve
This selection is only available on heat pump systems. "O" terminal can be
configured to be energized in either heating mode or in cooling mode, depending
on heat pump operation. "O" is used to describe a heat pump system that
energizes its reversing valve in cooling. "B" is used to describe a heat pump
system that energized its reversing valve in heating.
H — Reversing valve output (O/W2/B) is energized when HEAT mode is
selected.
C — Reversing valve output (O/W2/B) is energized when COOL mode is
selected.
Default is C.
Option 11 — Deadband Setting Between Heat & Cool
This option is not available on Heat Only and Cool Only systems. This selection
is to allow the installer to choose how much differential exists between the
heating and cooling setpoints. Allowable selections are 1- -6.
Default is 2.
Option 12 — Smart Recovery
Smart Recovery OF (off) means setpoints change precisely at setback recovery
time. Thirty, 60, or 90 selects the number of minutes recovery starts before
programmed recovery time. Recovery takes place smoothly during the selected
recovery time, ending at the recovery time and temperature which is
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