7
ENGLISH
S5 S4 S3 S2 S1
R3
PELV
R3I R2 R1
L
N
-
V1
CAN CAN
VFS2
VFS1
V2
S6
+
Max. low voltage 12 VAC / DC
Terminal:
Connection for:
S1
Recirculation
S2
Cold water sensor
S3
Primary flow rate (optional)
S4
Storage cylinder top sensor
S5
V1
Primary pump PWM signal
V2
0-10V/PWM signal (optional)
S6
Primary return (optional)
-
Cold water draw-off sensor
VFS2
optional
Power terminals 230 VAC 50-60 Hz
Terminal:
Connection for:
L
Mains power, phase L
N
Mains power, N
R1
Primary circuit pump
R2
Relay 2 (recirculation)
R3
Relay 3 (normally open)
R3I
Relay 3 (normally open)
The earth wire must be connected to the metallic PE
terminal!
SENSOR SIDE
max. 12V
POWER SIDE
230 VAC
ELECTRICAL WIRING DIAGRAM
Relay connections vary depending on what additional functions are selected.
The polarity of the temperature sensors is irrelevant. The common wire should be connected to the bottom (-) terminal strip.
Connect sensor S1 to the terminals on the left.
Connect the pump to the electronic controller terminals on the right.
