Specifications

15
14
13
'12
11
10
9
I
7
6
5
70
71
73
54
5:l
21
n
23
24
25
77
26
30
2A
n
31
58
/-ffi
61
7A
46
1
32
Fig.26
0t[|il[[|ll
1 service
cock
3
flow
switch
4 thermostatic
element
5
gas inlet
6 automatic
valve
7
pilot
adiustment
screw
I
switch
box/FFD
9 oush
button
start
10
pilot
valve
1 1
push button
stop
12
thermo-magnet
13
micro
switch
14
thermo-couple
15
pilot
burner
1 6 sensor
of
overheat
cut-off
device
17 main
heat
excnanger
18
air
venting
screw
19
expansionvesset
20
main
burner
21
gas
governor
..
22 main
burner
adjustment
screw
i3
double-stage
main
burner
valve
24
venturi
25
differential
valve
26
DC
solenoid
i8
expansion
vessel
pressure
control
29
pump
18