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1
1
33
37
34
29
2
2
2
37
34
37
34
32
22
23
38
24
21
9
30
33
30
33
30
36
35
20
25
26
27
31
4
4
5
17
13
7
11
18
14
8
12
15
30
M
M
16
30
28
10
AF
3
X
AC
P
P
T
G
SC
R
M
G
SC
R
M
G
SC
R
M
1
6
Y
Z
Ke
y:
1
- G
en
er
at
or
2
- IM
G B
US - RS485 C
on
ver
ter
3
- C
as
ca
de a
nd z
on
e r
eg
ul
at
or
4
- Z
on
e m
an
ager
5
- M
od
ul
at
in
g r
oo
m t
her
m
os
ta
t
6
- E
xt
er
na
l p
ro
be
7
- Z
on
e 1 t
em
per
at
ur
e p
ro
be (CMI-1)
8
- Z
on
e 2 t
em
per
at
ur
e p
ro
be (CMI-2)
9
- C
om
m
on fl
ow p
ro
be
10
-
St
or
age t
an
k u
ni
t t
em
per
at
ur
e p
ro
be
11
-
Z
on
e 1 m
ixi
ng v
alv
e (CMI-1)
12
-
Z
on
e 2 m
ixi
ng v
alv
e (CMI-2)
13
-
Z
on
e 1 c
en
tra
l h
ea
tin
g ci
rcu
it p
um
p (CMI-1)
14
-
Z
on
e 2 c
en
tra
l h
ea
tin
g ci
rcu
it p
um
p (CMI-2)
15
-
Z
on
e 3 d
ire
ct ci
rcu
it p
um
p (CD)
16
-
St
or
age t
an
k u
ni
t f
ee
di
ng p
um
p
17
-
Z
on
e 1 s
af
ety t
her
m
os
ta
t (CMI-1)
18
-
Z
on
e 2 s
af
ety t
her
m
os
ta
t (CMI-2)
H YDRAULIC DIAGRAM
N.B.:
the layout represented must be intended as an example of functioning. For correct system configuration follow the legal disposi-
tions in force.
2
20
-
Fu
el s
hu
t-o
ff v
alv
e b
ul
b
21
-
IN
AIL ty
pe-a
pp
ro
ve
d m
an
om
eter
-h
old
er c
oc
k
22
-
IN
AIL ty
pe-a
pp
ro
ve
d t
her
m
om
eter
23
-
IN
AIL ty
pe-a
pp
ro
ve
d m
an
ua
l r
ea
rm p
res
su
re s
wi
tch
24
-
IN
AIL ty
pe-a
pp
ro
ve
d m
an
ua
l r
ea
rm t
her
m
os
ta
t
25
-
A
tta
ch
m
en
t f
or exp
ans
io
n v
ess
el
26
-
Exp
ans
io
n
ve
sse
l
27
-
M
an
ifo
ld/m
ix
er
28
-
Ext
er
na
l s
to
ra
ge t
an
k u
ni
t
29
-
Fu
el s
hu
t-o
ff v
alv
e
30
-
N
on r
etu
rn v
alv
e
31
-
Sl
ur
ry c
oll
ec
tio
n s
ys
tem fi
lter
3
2
- M
ano
met
er
po
cket
33
-
Sys
tem s
hu
t-o
ff v
alv
e
34
-
Th
re
e-w
ay d
ra
in
in
g v
alv
e
35
-
D
am
per
co
il
36
-
IN
AIL ty
pe-a
pp
ro
ve
d m
an
om
eter
37
-
IN
AIL ty
pe-a
pp
ro
ve
d 2.7 b
ar s
af
ety v
alv
e
38
-
M
in
im
um m
an
ua
l r
es
et p
re
ssu
re s
wi
tch IN
AIL
X
-
Z
on
e 1 (CM|1)
Y
- Z
on
e 2 (CM|2)
Z
- Z
on
e 3 (CD)