Space heating and cooling

Automatic temperature and humidity regulation – Hot-air furnace – Air and fire control

Reexamination Certificate

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Details

C237S019000, C237S00800C

Reexamination Certificate

active

11067999

ABSTRACT:
An air handler operates alternately in (a) a heating state at times when air in a space in a building is at an actual temperature that is insufficient relative to a set temperature and (b) a non-heating state at times when the air in the space is at an actual temperature that is sufficient relative to a set temperature, and at least sometimes during the non-heating state, delivering heated air to the space.

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