14
Fig 3.2.10 “Solar 2 Storage tank/valve”
Terminal connection diagram,
program 9
Low voltage
max. 12VAC/DC connec-
tion in the left-hand terminal compart-
ment!
Terminal: Connection
for:
S1 (2x)
Sensor 1 collector
S2 (2x)
Sensor 2 storage tank 1
S3 (2x)
Sensor 3 storage tank 2
Sensor side
max. 12V
Danger
Caution
Mains side
115VAC
Caution
The polarity of the sensors is freely
selectable.
Mains voltages
115VAC 50-60Hz
Connection in the right-hand terminal
compartment!
Terminal: Connection
for:
L
Mains phase conductor L
N
Mains neutral conductor N
R1
Pump L (speed)
N
Pump N
R2
Change-over valve L
N
Change-over valve N
The PE protective conductor must be
connected to the PE metal terminal block!
Relay R1: For speed control of standard
pumps, minimum load 20VA
Actuating direction of valve:
R2 on/valve on = charge to sen-
sor 3 (storage tank 2)
Terminal connection diagram,
program 10
Fig. 3.2.11 “Solar 2 storage tank/2 pu.”
Low voltage
max. 12VAC/DC connec-
tion in the left-hand terminal compart-
ment!
Terminal: Connection
for:
S1 (2x)
Sensor 1 collector
S2 (2x)
Sensor 2 storage tank 1
S3 (2x)
Sensor 3 storage tank 2
The polarity of the sensors is freely
selectable.
Caution
Relay R1: Only for speed control
of standard pumps, minimum
load 20VA
Mains voltages
115VAC 50-60Hz
Connection in the right-hand terminal
compartment!
Terminal: Connection
for:
L
Mains phase conductor L
N
Mains neutral conductor N
R1 Pump
(St.1) L (speed)
N
Pump (storage tank 1) N
R2
Pump (storage tank 2) L
N
Pump (storage tank 2) N
The PE protective conductor must be
connected to the PE metal terminal block!
Sensor side
max. 12V
Danger
Caution
Mains side
115VAC
3.2 Electrical connection
(continued)
Installation
3
3