If the house temperature is higher than the set Abs. maximum alarm, the control
computer will give a maximum temperature alarm.
The control computer gives a maximum temperature difference alarm if the house
temperature is above: Calculated Start temperature ventilation + Calculated
bandwidth + Max. difference alarm or Setpoint thermal control + Max. difference
alarm.
Calc. start temp. ventilation
Ventilation is maximum at
An alarm will occur if a temperature becomes higher than the maximum
alarm limit: 20 + 4 + 3 = 27°C.
On hot summer days the temperature in a section can be very high. This
can result in a maximum alarm or the difference alarm will have to be set
high. This is not desirable with lower temperatures; the maximum alarm
limit would then be unnecessarily high. In order to provide effective alarms
(max. difference alarm as small as possible) the computer increases the
alarm limit parallel to the outside temperature, as soon as this is higher than
the point at which ventilation is maximum.
Calc. start temp. ventilation:
Ventilation is maximum at:
An alarm will occur if a temperature becomes higher than the maximum
alarm limit: 25 + 3 = 28°C.
To Next Page
Loading...
Need help?
General
