Optimisation - Honeywell Y9520Z Sundial RF2 Pack 5 User Manual

e. Press to move to the next parameter available for editing.
f. Keep pressing
buttons to change the parameter value.
g. Any parameter changes that have been confirmed with the
saved and used.
To Exit Installer Mode:
h. You can exit Installer Mode at any time by moving the slider to the next position
and then back again to RUN.
Note: Installer Mode will exit automatically after 10 minutes if the slider is not
moved.

Optimisation

The Optimisation features are explained on page 5. Parameters 9, 10, and 11 are
used to enable or disable and set these features to suit your requirements. You can
set Optimum Start, Delayed Start, or Optimum Stop, and you can also set a limit to
the Optimum Start time of 1, 2, or 3 hours.
Note: a radiator symbol
The diagrams below illustrate how Optimisation works.
Optimum Start
Optimum Start
ON
OFF
Comfort
temperature
0500 0600
Delayed Start
Programmed Time
ON
OFF
Comfort
temperature
0500 0600
to step around the list of parameters, and use
will flash to indicate Optimisation is taking place.
Programmed Time
Temperature
0700 Time
Delayed Start
Temperature
0700 Time
FINE TUNING YOUR ST9520C
Optimum Stop
Optimum Stop Programmed Time
ON
OFF
2100 2200 2300
or
button will be
Temperature
Time
17