6.6.5
Connection options for the standard PCB
Standard PCB
The standard PCB can be found in the connection box. Various
thermostats and regulators can be connected to the standard PCB.
Depending on the boiler version chosen, the standard control PCB can be
equipped with additional control PCBs.
Connecting the system pump
1. Connect a system pump to the Pump terminals of the connector.
Important
The maximum power consumption is 300 VA.
The function of the system pump can be changed using parameters
PP015, PP016 and PP018.
Connecting a PWM system pump
A PWM system pump can be connected to the boiler and can be
controlled in a modulating way from the boiler
1. Connect the PWM pump to the PWM terminals of the connector.
Important
Contact us for more information.
Connecting the on/off thermostat
Tk On/off thermostat
The boiler is suitable for connection to a 2-wire on/off thermostat. The
boiler is also suitable for a power stealing thermostat.
1. In the case of a room thermostat: install the thermostat in a reference
room.
2. Connect the two-wire cable of the thermostat to the On/Off OT
terminals of the connector.
Connecting an outdoor sensor
An outdoor sensor can be connected to the Tout terminals of the
connector. In the case of an on/off thermostat, the boiler will control the
temperature with the set point from the internal heating curve.
Fig.36
Standard PCB
AD-3000672-02
Pump
N L
+
0
+
0
0-10
PWM
Tout
OT
BL
RL
On/off
Fig.37
System pump
AD-3001306-01
N
L
Fig.38
PWM system pump
AD-3001307-01
+
-
PWM
Fig.39
On/off thermostat
AD-3001308-01
OT
On/off
Tk
6 Installation
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