Herz BioFire 500 - Page 53

Menu navigation and adjustment values
9
53
Term
Description
Unit
Displays the
requirement curve
.
Menu "Barrier times"
Barrier times
1
Time 1
1 - 2 times can be set. The second time can be added by the +. Example:
▪ time 1: 08:00 – 10:00
▪ time 2: 15:00 – 21:00
-
08:00 – 11:00
Setting up individual buffer tank loading times of every weekday, when it
will be not heated
-
By pressing the symbol Monday preset gets assigned to remaining
weekdays.
-
External requirement at digital input:
At a digital request the external set temperature gets transmitted as value to the heat supplier.
External requirement at analogue input:
At an analogue request a calculated (= linearly interpolated) temperature gets transmitted to the heat
supplier. For an understanding, fig 9.2 is to be used. The graph gets regulated by the parameters „analogue
must temperature 4 mA“ and „analogue must temperature 20 mA“.
For example, at an analogue request with a current signal of 12 mA, a temperature of 60 °C is registered at
the heat supplier, provided that the digital requirement (= external must temperature) is not higher.