Installation
Electrical Terminals
Low voltages
max. 24 VAC / DC
Mains voltages
230 VAC 50 - 60 Hz
Terminal:
Connection for:
S1
Outdoor sensor
S1
Outdoor sensor (GND)
S2
Flow temperature sensor
S2
Flow temperature sensor (GND)
S3
Room sensor (RC21)
S3
Sensor ground (GND-RC21)
V1
0-10V output; heat request Install additional relais
(item number 77502) if request is done via a normally
open contact.
-
GND for heat request
S4
Remote control (RC21)
+ clemp /
voltage output
24 V/DC voltage output for external devices
Max. load by external devices 24V / 2W
Terminal:
Connection for:
N
Pump
R1
Pump
N
Mains phase conductor
L
Mains phase conductor
N
Neutral Mixer
R2
Mixer open
R3|
not used 230 V
R3
Mixer close
The PE protective conductor must be connected to the
PE metal terminal block!
On the control board
CAN
To connect several controllers with each other using a
CAN cable. Terminate the CAN Bus on both ends
using resistors, with the assignment of the CAN bus
connectors being arbitrary!
At R3I are permanently 230v when the relay is inactive. Wrong wiring can damage the connected components.
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