18
P5. Optimise On (Pre-Heat)
1.
Press
or
to select program 5:
SELECT
RETURN
5 OPTIMISE ON
CURRENT 000 MINS
When programming a
Variable Pre-Heat
period (Optimum On) the first switch
on time (P2) should be set to the buildings occupation time. If a
variable pre-
heat
period is
not
required, then the first switch on time must allow for a
sufficient warm-up period before occupation time.
When selected, the full programmed
variable pre-heat
period will occur at 0ºC
external temperature. At temperatures above 0ºC the system will calculate the
required
pre-heat
time.
Note:
To assure adequate temperatures are achieved by occupation time
the maximum
pre-heat
period must satisfy the building’s thermal
characteristics.
If Optimum On is not required then set to 000 mins.
UP/DN TO CHANGE
CURRENT 000 MINS
2.
Press
to
display:
P
PROGRAM
3.
Press
or
to set the required number of minutes.
SELECT
RETURN
4.
Press
to
confirm
program
changes and return to main menu.
E
ENTER
