4.3 Plumbing circuit
278
27
20
44
95
241
42
5
Sealed chamber
7
Gas inlet
8
DHW outlet
9
DHW inlet
10
System delivery
11
System return
14
Safety valve
16
Fan
20
Burner assembly
27
Copper exchanger for heating and hot water
29
Fume outlet manifold
32
Heating circulating pump
36
Automatic air vent
42
DHW temperature sensor
43
Air pressure switch
60
All manuals and user guides at all-guides.com
29
5
10
8
fig. 29 - Plumbing circuit
cod. 3540G180 - 02/2008 (Rev. 00)
187
-
+
7
9
11
44
Gas valve
56
Expansion tank
74
System filling cock
81
Ignition and detection electrode
95
Diverter valve
114 Water pressure switch
136 Flowmeter
187 Fume baffle
241 Automatic bypass
278 Double sensor (Safety + Heating)
NINFA 32 MCS
43
16
56
81
114
36
14
32
74
136
GB