82
1.4
FUNCTIONAL DIAGRAM (fig. 2)
KEY
1 Fan
2 Limit thermostat
3
Primary exchanger
4
Gas valve
5
D.H.W. exchanger
6 Aqua Guard Filter System
7 C.H. flow sensor (SM)
8 Safety thermostat 100°C
9 Diverter valve
10 Pump high efficiency
11 C.H return sensor (SR)
12 D.H.W. sensor (SS/SB)
13 D.H.W. flowmeter
14 Hot water inlet filter
15 Loading
16 3 BAR safety valve
17 Pressure transducer
19 Boiler discharge
20 Expansion vessel
21 Condensate drain tap
23 D.H.W. cock (optional)
24 Gas cock (optional)
25 C.H. flow cock (optional)
26 C.H. return cock (optional)
CONNECTIONS
R C.H. return
M C.H. flow
G Gas connection
E D.H.W. inlet
U D.H.W. outlet
S3 Condensation outlet
Fig. 2
MURELLE HM 25 T - 35 T ErP
MURELLE HM 25 - 30 - 35 ErP
NOT PROVIDED