2.1.5 Boiler enable contact
When commissioning the boiler using the settings wizard, the boiler release contact function (“
How is the
boiler release contact on the core module being used?
”) is called up to enable the optional
analysis of an external floating release or start contact. The following functions are possible depending on the
setting and electrical connection:
Connection position
Setting
Description
6,3
A
T
sw +
gr -
IN
+24V
grün-gelb
rot +
blau -
ws 13VDC
NZ
COM
PZ
S
HE-
HE+
ZU
AUF
P2
5V/P3
ZU
AUF
P2
5V/P3
ws 13VDC
KM-35
(Betriebssignal)
KM-02
(Bus)
KM-01
(Bus)
KM-04
(COM 2)
KM-06
(Breitbandsonde)
KM-09
(Verriegelung)
KM-10
(STB)
KM-11
(NOT-HALT)
KM-07
(siehe Tabelle ...)
KM-08
(siehe Tabelle ...)
KM-05
(COM 1)
KM-03
(Bus)
KM-36
(Optionsmodul)
L
N
PE
PE
PE
KM-34
(Heizkreispumpe 0
oder Brennerrelais)
KM-33
(Heizkreispumpe 1)
KM-32
(Heizkreispumpe 2)
KM-31
(Mischer 1)
KM-30
(Mischer 2)
KM-29
(Netz)
KM-28
(Pumpe 1)
KM-27
(Saugzug)
FRKEM29
L1
N
N
L
N
L
N
L
N
LV
LV
L
Sig
+5V
N
L
N
AUF
ZU
N
AUF
ZU
KM-26
(PWM / 0-10V Pumpe 1)
KM-25
(Kesselfühler)
KM-24
(Rücklauf
fühler)
KM-23
(V
orlauf
fühler 1)
KM-22
(V
orlauf
fühler 2)
KM-21
(Raumfühler 1)
KM-20
(Raumfühler 2)
KM-19
(Außenfühler)
KM-18
(Fühler 1)
KM-17
(Fühler 2)
KM-16
(Türkontaktschalter)
KM-15
(Abgasfühler)
KM-14
(Kesselfreigabe)
KM-13
(Lambdasonde)
KM-12
(Durchflussmesser)
not in use
No effect on boiler operation (contact must not be clamped/
bridged).
Release/disable boiler
As long as the boiler release contact is closed, the boiler controller
operates according to the specified parameters (mode, time
window, etc.). If the boiler release contact is opened, the boiler is
no longer released and follows the shutdown procedure. As long as
the boiler release contact is open, heating requirements are
ignored. (e.g. flue gas thermostat of a supply boiler, house
distribution box).
Extra heating
As long as the boiler release contact is open, the boiler controller
operates according to the specified parameters. If the boiler release
contact is closed, the boiler starts in continuous load operation (e.g.
heat requirements of a heating fan).
2.1.6 Connecting a circulating pump to the core module
Different types of wiring must be implemented depending on the type of pump:
High efficiency pump with control line (PWM / 0-10V)
On high efficiency pumps with an additional wired control line, the speed control is implemented via the
additional connection for the PWM or 0-10V signal.
FRKEM29
P
u
m
p
e
1
N
PE
L
LV
N
N
e
tz
PE
L
AO-P1
PWM
0-10V
❒ Connect the power supply for the high efficiency pump to output “Pump 1” of the core module
❒ Connect the PWM cable of the high efficiency pump to the corresponding “PWM / 0-10V” port
➥ Make sure that the cables are configured correctly (polarity) in accordance with the connection diagram
of the pump!
❒ Set control of the pump in the relevant menu to “Field pump / PWM” or “Field pump / 0-10V”
2
Power connection and wiring
Core module and connection options
10
Froling GesmbH | A-4710 Grieskirchen, Industriestraße 12 | www.froeling.com
