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7
WATER CIRCUIT
TYPICAL WATER SYSTEM SCHEMATIC
Solar regulator
Solar collector
1
Collector temperature sensor socket
2
Manual bleed valve
3
Vent cock
4
Vent valve
5
Pressure gauge
6
Safety valve
7
Drain
8
Expansion vessel
9
Disconnect valves
10
Temperature gauge
11
Flow regulator
12
Flow meter
13
Pressure reducer
14
Water softener filter
15
Non-return valve
16
Thermostatic mixer valve
17
Solar storage cylinder
18
DHW recirculation temperature sensor
19
Domestic hot water outlet
UAC
Domestic cold water inlet
EAF
b
storage cylinders are delivered without a boiler heating pump. A suitably rated pump must be
B
IDRA MS
provided and installed separately. Flow rate from the solar collector circuit depends on the type and number of
collectors installed. For further information, consult the manual for the collectors.
b
The domestic hot water system MUST INCLUDE an expansion vessel, safety valve, automatic vent valve and
storage cylinder drain cock.
b
Safety valves must be connected to a suitable collection and drain system. The manufacturer declines all
responsibility for damage caused by water escaping from safety valves.
b
The choice of system components and the method of their installation are left up to the heating engineer installing
the system. Installers must use their expertise to ensure proper installation and functioning in conformity to all
applicable legislation.
b
Circuits filled with anti-freeze must be fitted with water disconnectors.
4
3
M
SCo
2
UAC
17
19
10
PR
16
10
SB1
10
14
15
10
10
7
9
8
Collector outlet
M
Collector return
R
DHW recirculation pump
PR
Solar collector circuit pump
PS
Storage cylinder bottom temperature sensor
SB1
Collector probe
SCo
Note! The above schematic is purely indicative.
R
1
1
10
11
16
12
13
Water control system
10
EAF
5
7
6
8
M
9
°C
PS
10
10
7
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