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Terms
Auto-Changeover: A mode in which the thermostat will turn on the heating or cooling based on room
temperature demand.
Cool Setpoint: The warmest temperature that the space should rise to before cooling is turned on (without
regard to deadband).
Deadband: The number of degrees the thermostat will wait, once a setpoint has been reached, before energizing
heating or cooling.
Dehumidify: To reduce the amount of moisture in the air.
Differential: The forced temperature difference between the heat setpoint and the cool setpoint.
Heat Setpoint: The coolest temperature that the space should drop to before heating is turned on
(without regard to deadband).
Humidify: To increase the amount of moisture in the air.
Icon: The word or symbol that appears on the thermostat display.
Mode: The current operating condition of the thermostat (i.e. Off, Heat, Cool, Auto, Program On).
Override: During programmed unoccupied periods, pressing the Override button will force the thermostat into
occupied settings. During programmed occupied periods, pressing the Override button will force the thermostat into
unoccpied settings.
Programmable Thermostat: A thermostat that has the capability of running Time Period Programming.
Reheat: Running the cooling and 2nd stage strip heaters at the same time in order to dehumidify the air without
significantly cooling down the room temperature.
Temperature Swing: Same as Deadband.
Time Period Programming: A program that allows the thermostat to automatically adjust the heat setpoint
and/or the cool setpoint based on the time of the day.
PSP4272C User Manual.indd 6PSP4272C User Manual.indd 6 6/9/21 11:05 AM6/9/21 11:05 AM
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