About Advanced Features & Operation
DEADBAND OPERATION - Controls up to two Heat and two Cool stages
(please see the diagram below).
And
The
2nd Stage
of heat or cool is turned on when:
(
A
) The 1st Stage has been on for a minimum of
two minutes
.
(
B
) The temperature spread from the setpoint is equal to or greater
than:
the setpoint plus the 1st stage deadband (step #7, page 11),
plus the 2nd stage deadband.
This 2nd stage deadband is fixed at
two degrees and is not adjustable.
The
1st Stage
of heat or cool is turned on when:
(
A
) The temperature spread from the setpoint is equal to or greater
than:
the setpoint plus the 1st stage deadband (step #7, page 11).
This 1st stage deadband is adjustable from 1-6 degrees and the
default is two degrees.
The above figure assumes the minimum on time for the prior stage
has been met to allow the next stage to turn on, once the deadbands
have been exceeded.
Heat
Setpoint
Cool
Setpoint
Deadband
Deadband
Deadband
Deadband
db 1
db 1
db 2
db 2
(adj. 1-6 )
(adj. 1-6 )
1st Stage
turn on
2nd Stage
turn on
1st Stage
turn on
2nd Stage
turn on
Heating
Cooling
TEMPERATURE
DECREASE
INCREASE
(non-adj. 2 )
(non-adj. 2 )
ELECTRIC HEAT - Selecting Electric Heat
(
the thermostat to turn on the fan immediately any time there is a heat
demand. Since most gas furnaces control the fan, this feature should be
off unless it is necessary for the thermostat to energize the fan with first
stage heat.
step #6, page 11)
, will cause
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