Operation Manual

Menu: Configuration
Programmable inputs explanatory
notes
0 Default, None
The "programmable input" function is
not used
1 Modem function active
when contact closed
The telephone remote switch (modem
function) is a central switching off or
transfer of the heating system to the
operating mode "Standby" or reduced t
2 Modem function active when
contact open
As 1, but the modem function is
activated when the phone switch
contact opens.
3 Warm air curtain function
The warm air curtain function causes
the boiler setpoint on parameter 2212
TKSmax to be set. In addition, a heat
demand for heating circuit 1 is set.
This function can be activated both in
summer and in winter..

The burner output modulation is
maintained

The drinking water priority is
maintained

The warm air curtain function is
active with a closed contact

A PWM pump control is not
affected
4 Preselected setpoint
(AGU 2511 and 2513 only)
The heat demand (temperature
requirement) is determined in this case
by an analogue signal. This can be
either a current signal (4...20 mA) or a
voltage signal (DC 0...10 V).
5
Preselected output
(AGU 2511 and 2513 only)
The relative boiler efficiency is
determined in this case by an
analogue signal.
6 Low loss header sensor input
This function allows boiler adjustment
to the flow temperature of the low loss
header. For this purpose, connect a
sensor to the clip-in function module
input, which must be placed on the
flow after the low loss header.
7 Check sign flue gas damper
When flue gas damper control is
active (programmable output), the
potable water flow switch is assigned
as input for flue gas damper feedback.
Alternatively, the feedback can also be
assigned to the programmable input.
8 Burner lock activated when
contact closed
The "burner lock" function is used for
the integration of alternative energy
sources (solid fuel, solar, etc.) needed
to inhibit the burner.
The "burner lock" function is used for
the integration of alternative energy
sources (solid fuel, solar, etc.) needed
to inhibit the burner.
9 Burner lock activated when
contact open
As 8 but the burner lock is activated
when the external contact opens.
10 Collector sensor (solar
Clip-In AGU 2530 only)
Using the collector sensor and an
additional storage tank sensor B3 or
B4, solar differential control can be
implemented.
11 Burner lock via temperature
sensor
The "burner lock via temperature
sensor" function is used for the
integration of alternative energy
sources (solid fuel, solar, etc.) needed
to inhibit the burner.
A temperature sensor detects the
temperature in the buffer storage
tank, and locks or releases the
burner as follows:
The burner is released when: Storage
tank sensor < boiler temperature
setpoint plus hysteresis
The burner is locked if: Storage
tank sensor < boiler temperature
setpoint minus hysteresis
40