6
Water circuit
WATER CIRCUIT
1
Solar collector
2
Storage cylinder
3
Collector probe
4
Disconnect valves
5
Non-return valve
6
Temperature gauge
7
Vent valve
8
Safety valve
9
Pressure gauge
10
Drain
11
Expansion vessel
12
Pump
13
Flow regulator
14
Flow meter
15
Vent cock
16
Manual bleed valve (acces-
sory)
17
Plugs
18
Heat transfer fluid recovery
M
Collector outlet
R
Collector return
3
1
1
R
M
°C
M
4
4
4
9
8
11
10
13
14
2
6
12
Water control system
5
7
15
16
17
17
18
b
If copper pipes are used, joints must be hot brazed.
b
We recommend the use of stainless steel pipes spe-
cially made for solar collectors for the outlet, return
and probe pipes. The probe cable should be of the
shielded type.
b
Do not use plastic or multistrate pipes. Operating
temperature can exceed 180°C.
b
Pipe lagging must be able to resist high temperatures
(180°C).
Pressure drop in solar collectors (*)
Pressure drop (mbar)
Flow rate (l/h)
15
12,5
10
7,5
5
2,5
0
0
50
100
150
200
250
300
350
400
(*) With antifreeze-water mix of 33,3% / 66,7% and heat transfer medium temperature = 20°C.
Summary of Contents for SCF-20N
Page 1: ...SOLAR COLLECTOR SCF 20N INSTALLATION MANUAL SOLAR ...
Page 11: ...11 ...
