You can set up overrides for a set point load in a boiler. For example, building managers may want to
set up overrides in the system so that domestic hot water is set up to heat the water to 140° C at night
to kill bacteria in the water. Alternatively, home owners may want to set up a DHWoverride so that the
water is extra hot for the morning.
To set up a temperature override for a DHW load:
1.
Go to > User Settings > Overrides.
Each load can have two automated (override) programs for each day of the week: Prog 1 and
Prog 2. Each program includes one override temperature that can be applied during two
separate programmable time periods, for example, in the morning and in the evening.
2. Tap the Edit button for the DHW load (the system is programmed to heat the DHW to 125 ° C).
3. Tap either Prog 1 or Prog 2 next to a day of the week, for example Monday.
Each period is defined by a start and an end time in 24-hour clock format. If the programmed
times overlap, Prog 1 will supersede Prog 2.
4.
Tap the DHW Tank Setpoint value > On the number pad, enter a temperature value, for
example, 140° C > OK.
5. In the Start Time 1 field, tap 0:00 > Enter the hour and minutes, using the 24- hour format (e.g.,
01:00) > OK > OK to confirm.
6. In the End Timefield, tap 0:00 > Enter the hour and minutes, using the 24- hour format (e.g.,
04:00) > OK > OK to confirm.
7. Tap the Save button to save the settings in the selected program.
8. (Optional) Repeat steps 3-7 to configure program settings for the other days of the week.
9. When you have finished entering the necessary settings for the required program(s), tap the
Back button.
Temperature Override programming can be enabled or disabled for each load independently,
without affecting the temperature and time settings for each day of the week.
10. Tap the Enable box next to a load with a temperature override, so that it has a check mark in
the box.
11. Tap the Save button, and then tap the Back button to return to the Overrides screen.
12. Now, when you want to set the override, check the Enable box next to the DHW load that has
the override set up > Save.
Based on the programmed settings above, the system begin heating the DHW at 01:00 am to 140° C,
and will end at 04:00 am, and revert to heating the DHW at 125° C. This will continue every Monday
during the night until you uncheck the "Enable" box.
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