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Default Programmable thermostat terminology

Different sources define "setpoint" differently so I'll ask he

Is the HEAT setpoint the temperature the furnace turns on, turns off or the desired room temperature?

Is the COOL setpoint the temperature the A/C turns on, turns off or the desired room temperature?


Also, what does "DEADBAND" mean?
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Default Programmable thermostat terminology

On Friday, December 8, 2017 at 2:38:10 PM UTC-5, condo owner wrote:
Different sources define "setpoint" differently so I'll ask he

Is the HEAT setpoint the temperature the furnace turns on, turns off or the desired room temperature?


I'd say it's the desired room temp which should be within a band of
maybe less than 1 deg +/- of where it turns on and off. Exactly how
far the other points are depends on the thermostat and with some,
you can change it.




Is the COOL setpoint the temperature the A/C turns on, turns off or the desired room temperature?



Same


Also, what does "DEADBAND" mean?


Not sure, but maybe it's when you have a thermostat that will automatically
switch from heating to cooling and vice-versa, where the deadband is the
temp it has to exceed in the other direction before it will switch.
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Default Programmable thermostat terminology

On 12/8/2017 1:38 PM, condo owner wrote:
Different sources define "setpoint" differently so I'll ask he

Is the HEAT setpoint the temperature the furnace turns on, turns off or the desired room temperature?

Is the COOL setpoint the temperature the A/C turns on, turns off or the desired room temperature?


Also, what does "DEADBAND" mean?


The Setpoint is the temperature you want to maintain.

The Deadband is the band of temperatures around the set point where
nothing will happen. If the set point is 70 degrees and the dead band
is 2 degrees then as the room is cooling the Heater will not turn
on until the temperature drops to 69 degrees. then it will run until the
temperature rises to 71 degrees. If the room is warming the AC will
not turn on until the temperature rises to 71 degrees and will not
turn off until it drops to 69 degrees.

The actual way it works is more complex than this, but that is the
essence of Deadband.

Bill
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