14
Installation
3
3
3.2.5 Solar 2 storages / valves
Sensor side
max. 12V
Danger!
Caution
Mains side
230VAC
3.2 Electrical connection
(continued)
Brief description:
Function
∆
T R1 (10.6) switches pump
at relais R1.
Function priority (10.15) switches
valve at relais R2.
Function Tset S3 (10.7) switches Ad-
ditional heating at relais R3.
Low voltage
max. 12VAC/DC
connection in the left-hand terminal
compartment!
Terminal: Connection
for:
S1 Sensor1
Collector
S2
Sensor 2 Storage1 low
S3
Sensor 3 (Thermostat)
S4
Sensor 4 Storage 2 low
S5 Sensor
5
(optional)
S6
Sensor 6 (optional,
see 11.5)
+
not used
-
jumper terminal
block-
Connection of sensor earths (S1-S6)
via terminal block sensor-
The polarity of the sensors is freely
selectable.
Mains voltages
230VAC 50-60Hz
Connection in the right-hand terminal
compartment!
Terminal: Connection
for:
R1
Pump L (speed)
N
Pump N
L
Mains phase conductor L
N
Mains neutral conductor N
R2 Valve
L
N
Valve N
R3 Thermostat
L
N
Thermostat N
Actuating direction of valve:
R2 on/valve on =
fl
ow through 2nd
storage
The PE protective conductor must be
connected to the PE metal terminal
block!
Caution
Relais R1: Only for speed
control of standard pumps,
minimum load 20 VA
