Riello 7200 Kombi Plus, Installation, Operation And Maintenance Manual

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11
gENERAL
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EXAMPLE 3: Water circuit with biomass fuelled boiler
1 Pressure reducer-stabiliser
2 Ball valve with sampling cock
3 Sand filter
4 Water softener
5 Bypass pipe (normally closed)
6 Polyphosphate dosing unit
(DHW)
7 Sanitary water meter
8 Non-return valve
9 Mains water inlet
10 Filter and valve drain
11 Resin wash drain
12 Overflow drain
13 Filter and valve drain
14 Manual bleed valve
15 Solar collector
16 Solar circuit disconnect valve
17 Safety tank
18 Solar module with solar
controller
19 7200 Kombi Plus
20 Solar circuit expansion vessel
21 DHW user
22 Isolating valve
23 Thermostatic mixer valve
24 Safety valve
25 Bleed valve
26 DHW circuit expansion vessel
27 Filter
28 Laddomat 21
29 Thermal drain valve
30 Biomass fuelled boiler
31 Distribution manifold
32 MIX module
33 Thermostatic valve
34 Detent
35 Distribution manifold
36 Condensate outlet
37 DHW circulation module
38 Motorised diverter valve
(stratification control)
35
M
ix
1/ 2"
1/ 2"
1/ 2"
1/2"
1/ 2"
1/
2" 1/
2"
1/2"
35
1/2"
1/ 2"
1/2 " 1/2 " 1/2 " 1/2 "
1/2"
AB
A B
1/2"
1/2"
1"
1"
1/
2"
1/ 2"
1/ 2"
1/2"
0
20
40 60 80
100
120 °C
FE
RT
0
8 10
2 4 6
°C
120 100 80
60 40 20 0
+
+ -
-
+
+ -
-
0
20
40 60 80
100
120 °C
FE
RT
0
8 10
2 4 6
°C
120 100 80
60 40 20 0
+
+ -
-
+
+ -
-
1
2
3
4
2
5
6
7
8
8
9
10
11
12
13
0 10
20 30 40
50
60
70
80 90 100 110
0
10 20 30 40 50
60
70
80 90 100 110
14
16
17
18
19
20
15
15
15
22
23
27
31
33
34
22
22
22
22 22
24
24
25
25
26
26
32
32
22
25
25
21
21
25
22
22
22 22 22 22
37
8
8
38
36
28
29
30
22
25