Technical data

Programming
56 POTTERTON COMMERCIAL
120-393 632.4 04.08 Fh
as a flow setpoint. The maximum value will be set under prog. no.
5975.
Specified capacity: The existing voltage signal or current signal
will be transferred to the controller and converted into a percent
value, which gives the relative boiler capacity. The threshold, from
which the existing signal is supposed to activate the capacity spe-
cification, will be set under prog. no. 5976. Due to this, the mini-
mum value of the signal is set at the same time. If the signal is of
the size of the value set in prog. no. 5976, the boiler is operated
at minimum relative capacity; at the maximum value of the signal,
the control is at maximum relative boiler capacity. If the signal is
below the set value, the specified capacity is not activated, i.e.
the burner will be switched off.
Pump pressureless header: This function enables a control of the
boiler at flow temperature after the hydraulic bypass. For this, a
Fig. 16: Heat request (examples)
100
temperature
Fig. 17: Specified capacity (examples)
relative power