6.6.5
Connection options for the standard PCB
Connection options for the standard control PCB
The standard PCB can be found in the connection box. Various thermo
stats and regulators can be connected to the standard PCB.
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
,
and
.
Connecting a PWM system pump
A PWM system pump can be connected to the boiler and can be control
led in a modulating way from the boiler
1. Connect the PWM pump to the PWM terminals of the connector.
Note
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 boil
er is also suitable for a power stealing thermostat.
1. In the case of a room thermostat: install the thermostat in a refer
ence room.
2. Connect the two-wire cable of the thermostat to the On/Off OT termi
nals of the connector.
Connecting an outside sensor
An outside sensor can be connected to the Tout terminals of the connec
tor. In the case of an on/off thermostat, the boiler will control the tempera
ture with the set point from the internal heating curve.
1. Connect the two-wire cable to the Tout terminals of the connector.
Important
An OpenTherm regulator can also use this outside sensor. In that
case, the desired heating curve must be set on the regulator.
Fig.24
Standard PCB
AD-3000672-02
Pump
N L
+
0
+
0
0-10
PWM
Tout
OT
BL
RL
On/off
Fig.25
System pump
AD-0000662-01
Pump
N L
+
0
+
0
0-10
PWM
Tout
OT
BL
RL
On/off
Fig.26
PWM system pump
AD-0000654-01
Pump
N L
+
0
+
0
0-10
PWM
Tout
OT
BL
RL
On/off
Fig.27
On/off thermostat
AD-0000657-01
Pump
N L
+
0
+
0
0-10
PWM
Tout
OT
BL
RL
On/off
Tk
Fig.28
Outside sensor
AD-0000658-01
Pump
N L
+
0
+
0
0-10
PWM
Tout
OT
BL
RL
On/off
6 Installation
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