EN
31
Preset scheme
S1
Solar panels probe
S2
Domestic hot water tank probe
OUT1 Output for PSO solar pump
2 .14 .1 External air sensor
The solar group, to be ordered separately, consists of:
1. solar control unit;
2. boiler probes and panel probe to be positioned in the panel
by the installer;
3. 24 L solar expansion vessel;
4. adjustable thermostatic mixing valve from 35 to 65 ° C, to be
calibrated by the installer;
5. solar circuit charging unit;
6. solar circuit circulation pump.
Solar control unit
This device is a control unit for solar thermal panel systems.
On the backlit LCD display it is possible to view the configuration
of the hydraulic diagram of the plant, the status of the outputs,
the status of the probes and other numerous information and
data.
The control unit automatically manages the outputs and inputs
related to the type of system set according to the following logic:
– The PSO pump is activated with S1 - S2> 8 ° C.
– The PSO pump is switched off with S1 - S2 <4 ° C.
Solar pump PSO
On the front part of the pump body there is a regulator that al-
lows to select the head according to the actual solar system re-
quirement as shown in the figure on the side
The setting of the head value of the solar pump PSO must be car-
ried out, with the solar system working, all the distribution valves
open and the users switched on, verifying that the temperature
difference is congruent with the project.
Flow chart / head of solar circuit pump
PSO
II
I
III
Min.
0
0,5
1,0
1,5
2,0
2,5
3,0
0
1
2
3
4
5
6
0
10
20
30
40
50
60
800
1
/min
2390
1
/min
3400
1
/min
4300
1
/min
Hst (kPa)
H (m)
Q (m³/ h)
max.
Содержание PDC FLOOR 12T
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