Carrier TC-PHP01-BLK Installation Manual page 4

COMPATIBLE HEATING AND COOLING SYSTEMS
This thermostat works with many centralized residential heating and cooling
systems.
SConventional Heating and Cooling (AC): up to one stage of heating and
two stages of cooling
SHeat Pump (HP): up to three stages of heating and two stages of cooling
Heat pumps work to provide cooling in the summer but in the winter,
d
they do it in reverse, drawing their heat energy from the outside air.
SSystems with a Common (C) wire
Recommended to whenever possible
d
SSystems without a Common (C) wire
Two alkaline AA batteries required
d
This thermostat is not compatible with Duel Fuel or Geothermal
!
Systems. Review all documentation to ensure that you have
selected the appropriate model thermostat for your system.
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