18
Diagram 96: Automatic boiler, heating circuit (
with electrothermal mixer
),
burner demand
Warning!
This diagram is not suitable for 3-point mixer motors!
If no room sensor is used, the room influence
RI
in the menu
MIXER
must be set to
zero
and
the sensor
S1
set to
a fixed value (e.g. 20°C)
.
A3 = Burner
demand
A1 = Electro-
thermal mixer
Required settings:
Basic control level:
Time,
Operating mode (preferably
AUTO
) Set room temperature for lowering mode
RTL
Set room temperature for normal operation
RTN
Time program
for normal operation and burner demand (time program 1-4)
Parameter menu:
Program number
PR
min1
… boiler
S4
A2
min2
… boiler
S4
A3
diff2
… boiler
S4
– NP
A3
Heat curve
TEMP
or
R RISE
Flow maximum and minimum temperature
PRE
max,
PRE
min)
Parameter frost protection mode (
OTF
,
RTF
)
Menu Men
MIXER
(Room influence etc.) and
PUMP
(Switch off conditions)
PSC
(Pump speed control) settings:
AC I3
,
DVA = PN
if necessary, readjustment of the values
PRO
,
INT
and
DIF
A2 off
S4 < min1
A2 on
Switch-off condition
PUMP
.
A2 off
Burner demand
A3
Heating active
and
S4 < min2
or
Heating active
and
S4 < NP + diff2
(NP = set flow temperature)