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2.3
Design
10
14
13
12
11
10
6
9*
8
7
6*
5
4
3
2
1
15 16
10
14
15 16
17
17
18
14
18
1 - Insulation
2 - Inertial storage cylinder
3 - Solar coil
4 - Return to boiler 1-2
19
5 - Sleeve for electric heating element
20
(not supplied)
6* - Outlet from boiler 2 (low temperature)
7 - Domestic hot water tank
21
8 - Temperature gauge
22
9* - Outlet from boiler 1 (high temperature)
10 - Magnesium anode
23
11 - Flange
24
12 - Cylinder cover
25
13 - Flange cover
14 - Domestic hot water recirculation
15 - Domestic hot water outlet
16 - Domestic cold water in
26
17 - Domestic hot water probe well
18 - Vent valve fitting
19 - Heating flow 1 (high temperature)
27
20 - Boiler probe well
21 - Heating return 1 (high temperature)
22 - Auxiliary probe well
23 - Solar collector outlet
24 - Heating flow 2 (low temperature)
25 - Solar collector return
26 - Solar controller probe well
27 - Heating return 2 (low temperature)
Inertial storage cylinder drain
28 - Flange insulation
(*) with internal deflector
13
28
11
Fig. 2.1
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