18
2.12. W
ATER
C
IRCUIT
D
IAGRAM
AB
C
D E
2
3
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
4
1
20
L
EGEND
:
1
-
Fan
2
-
Burner
3
-
Ignition/detection electrode
4
-
Air release valve
5
-
Main heat exchanger
6
-
Central heating flow temperature probe
7
-
Condensate Trap
8
-
Gas valve
9
-
Pressure gauge
10 -
Safety valve
11 -
Secondary heat exchanger
12 -
Domestic hot water temperature probe
13 -
Drain valve
14 -
Domestic hot water flow switch
15 -
Motorised valve
16 -
Automatic By-pass
17 -
Circulation pump with automatic
air release valve
18 -
Expansion vessel
19 -
Central heating return temperature probe
20 -
Air pressure switch
F
IG
. 2.14
27/32 MFFI
Содержание 47-116-09
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