Venstar T2300FS - Manual (Page 21)

About Advanced Features & Operation
CLOCK BACKUP - In the event of a power loss, the thermostat’s internal
clock will continue to keep proper time for a minimum of 48 hours without
external power or batteries.
DEADBAND OPERATION - Controls up to two Heat and two Cool stages
(please see the diagram on the next page).
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 16),
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 16),
This 1st stage deadband is adjustable from 1-6 degrees and the
default is two degrees.
88
88
88
unoccupied
Program
Fan On Service Filter
On
Am
Pm
C OOL
H EAT
Override
Locked
ONOFF
AUTO
Stop
Start
Setup SuMoTuWeThFrSa
123
I2:00
Page 20
OFF
o
Pm
I2:00
Mo
OFF
o
Pm
I2:00
Mo
o
CALIBRATION - Under normal circumstances it will not be necessary to
adjust the calibration of the temperature. If calibration is required,
please contact a trained HVAC technician to correctly perform the
following procedure.
Place the therm-
ostat in the OFF
mode.
Press
MODE button.
While holding the
MODE button,
press and hold the
DOWN button for
5 seconds. All icons
will appear on the display. and hold the
MODE
Press the MODE
button once. The
thermostat temp-
erature will be
displayed and
may be calibrated
using the UP or DOWN buttons.
After calibration is
complete, press
the MODE button
once to save
your changes and
return to normal operation.
MODE MODE