Features and technical data
Installation, use and maintenance manual – Caldaia 55.1 and 100.2 Tech
11
1
Figure 1.7
Caldaia 100.2 internal components
1
Flue saf
et
y ther
mal fuse
2
Sla
ve unit hea
t ex
changer
3
Bur
ner unit
4
Flame det
ec
tor
5
Hea
ting r
etur
n pr
obe
6
Blo
w
er
7
M
odula
ting cir
cula
tor
8
Gas v
alv
e
9
Air v
en
t v
alv
e
10
Syst
em dr
ain tap
11
Hea
ting deliv
er
y pr
obe
12
Saf
et
y ther
mosta
t
13
Ig
nition elec
trode
14
Air in
take pipe
15
Ig
nition tr
ansf
or
mer
16
Ven
tur
i
17
Condensa
te dr
ain hose
18
W
at
er pr
essur
e swit
ch
19
M
anif
old pr
obe
20
M
ast
er unit hea
t ex
changer
21
Condensa
te dr
ain siphon
22
Syst
em dr
ain tap
23
Expansion tank
24
INAIL appr
ov
ed saf
et
y v
alv
e
25
Inspec
tion w
ell
26
Gas shut
-off v
alv
e sensing bulb ther
mo
w
ell
27
INAIL appr
ov
ed manual r
eset lock ther
mosta
t
28
INAIL appr
ov
ed maximum pr
essur
e lock swit
ch
29
INAIL appr
ov
ed minimum pr
essur
e lock swit
ch
30
Pr
essur
e gauge c
onnec
tion tap with t
est flange and shock absor
ber
pipe
31
INAIL
-c
omplian
t pr
essur
e gauge
32
In-line shut
-off v
alv
e
33
Syst
em deliv
er
y c
onnec
tion
34
Syst
em r
etur
n c
onnec
tion
35
Deliv
er
y manif
old
36
Retur
n manif
old
37
Gas manif
old
38
M
ast
er c
on
trol panel
39
Sla
ve c
on
trol panel
40
Flue gas manif
old
41
Elec
trical c
onnec
tion t
er
minal
42
In
teg
ra
ted flue gas check v
alv
e
9
11 12
13
6
19
1
2
3
4
8 8
14
13
4
20
11 12
9
1
36
37
39
38
34
32
33
25 26
32
24
28
29
30
31
15
17
5
7
6
16
14
14
18
22
22
21
17
2
10
9 1
23
28 40
41
25
32
32
40
40
15
27
35
42
42