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12.6 Electrical wiring diagram solar heating system
Cable colors: Components: Controller connections:
1 Brown AA Control J12 Connection of combined Q/
T sensor (1-2-3-4)
2 Blue BB
[VAC]
Solar heating system pump
(modulating) (230 VAC)
3 Green J13 Connection of temperature sensor
S
1
(2-4)
4 Black BB
[PWM]
Solar heating system pump
(modulating) (PWM-signal)
5 White J14 Connection of temperature sensor
S
2
(2-4) and temperature sensor
S
3
(1-3)
6 Grey/Beige CC Temperature sensor
(S
1
- solar collector)
7 Green
8 Yellow DD Temperature sensor (S
2
- tank) J16 Connection of BUS-link
communication
EE Combined Q/T sensor
(incl. temperature sensor S
4–
solar collector return)
Terminal strip connections: J18 Connection of PWM-signal solar
heating system pump
A
Earth
N Neutral FF Communication between the
water heater controller and the
solar heating system controller
(BUS-link)
L Live input of controller F2 Fuse (T 3.15A - 250 V)
L
3
Live input for the solar heating
system modulating pump
PWM+ PWM+ control signal for
controlling solar heating system
modulating pump
GG Temperature sensor
(S
3
- top of storage tank)
PWM- PWM- control signal for
controlling solar heating system
modulating pump
K Double-pole isolator
0311753_SGS_28-120_II_UKUK_V2.0 , 2017-05-03 119
119


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