Sime 8103296, User, Installation And Servicing Instructions

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66
EN
5.8 Main hydraulic circuits
DUETTO HE 25 EV
16
17
15
3
1
9
6
14
7
13
13
5
10
14
12
11
8
2
4
R
E
U
M
Sc
DUETTO HE 35 EV
16
17
15
3
1
9
6
14
7
13
13
5
10
14
12
11
8
2
4
R
E
U
M
Sc
KEY:
1
Thermal unit body
2
System filling valve
3
Safety valve (VS)
4
Automatic bleed valve
5
Expansion vessel (VE)
6
Diesel burner (BR)
7
High-efficiency system pump
8
Pressure gauge
9
System discharge valve
10
System water pressure switch
11
Hot water pressure switch
12
Instantaneous calorifier
13
Check valve
14
Manual relief valve
15
High-efficiency calorifier pump
16
Stainless steel post-condenser
17
Condensate siphon outlet
M
System delivery
R
System return
E Hot water inlet
U
Hot water outlet
Sc
Condensate outlet
Fig. 21