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6.
SCHEMATIC DIAGRAM - SYSTEM FOR HEATING AND DOMESTIC HOT WATER
the choice and installation of the system components is up to the installer, who must operate according to good practice and the current
legislation. systems with antifreeze require the use of backflow preventers. Remember that the diagram in Fig. 19 is a schematic diagram.
in case of different systems, please contact our After-sales service which will provide all the elements you require.
24
23
10
9
22
19
8
T3
1
5
5
11
Legend
T1
Heating delivery
T2
High temperature return
T3
low temperature return
T4
expansion vessel connection
1
Heat generator
2
Burner complete with shutoff and control valves
3
Hot water tank
4
system manifolds
5
disconnecting valves
6
Circulating pump
7
non-return valves
8
system expansion vessel
9
Automatic vent valve
10
safety valve
11
softener filter
12
system loading
13
Fuel shutoff valve
66
en
5
7
6
5
4a
5
26
25
19
27
T2
T4
T1
cod. 30902850 - Rev. 04 - 10/2019
TP3 COND 65 ÷ 1000
5
6
5
5
4b
5
6
20
A.C.
2
A.C.
13
15
28
29
13 14 16 17
15
Fig. 19
14
Gas pressure stabilizer
15
Manual shutoff valve
16
Gas filter
17
Vibration-damping coupling
18
pump
19
pressure gauge
20
safety thermostat
21
Control thermostat
22
3-way valve
23
Manual reset pressure switch
24
Flow switch
25
Control thermostat
26
Manual reset thermostat
27
temperature test well
28
oil supply
29
Gas supply
20
19
7
3
21
10
7
5
19
AC
18
RC
15
AF
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