GENERAL
7
1
2
5
7
10
6
12
11
9
3
4
8
13
14
7
15
16
18
20
21
22
23
17
19
1 - Insulation
2 - Domestic cold water inlet
3 - Inertial storage cylinder
4 - Bottom coil
5 - Temperature sensor socket
6 - Sleeve for electric heating element (not sup-
plied)
7 - Boiler temperature sensor socket
8 - Top coil
9 - Storage cylinder temperature gauge
10 - Domestic hot water outlet
11 - DHW coil
12 - Vent valve fitting
13 - Inlet from boiler
14 - Inlet from 2nd boiler
15 - Central heating outlet
16 - Return to 2nd boiler
17 - Inlet from solar collector
18 - 50° C water return
19 - Return to solar collector
20 - Inlet from condensing boiler / 50° C
water return
21 - Solar controller temperature sensor
socket
22 - Return to condensing boiler / Filling
23 - 30° C water return / Drain
Design
DESIGN
