7
2.3 Circuit Diagrams
Figure 4: Typical domestic circuit diagram
Solar Collector
Dual-line
Pump Station
Pressure Relief
Discharge
Solar
Expansion Vessel
Motorised Valve
(if required)
Drain Cock
(at lowest point)
DHW
Storage Cylinder
Solar Coil
Boiler Coil
(if applicable)
T3
T2
T1
T1
T2
T3
Solar Sensors
refer to instructions for
Solar System Controller
M
F
L
O
W
R
E
T
U
R
N
F
L
O
W
R
E
T
U
R
N
