24
S
ch
ema
tic
el
ectr
ical
co
n
n
ecti
o
n
to
th
e
regu
lat
o
r:
Pan
el
–
co
n
tro
l p
an
el
an
d
add
it
io
n
al
ro
o
m
p
an
el
e
co
S
TE
R20
0
/e
co
S
TE
R
TOUC
H
,
λ
–
L
amb
d
a
mo
d
u
le
,
B
-
mo
d
u
le
t
o
su
p
p
o
rt
add
it
io
n
al
h
eat
in
g
ci
rcu
it
s,
BT
–
b
o
ile
r
te
mp
.
sen
so
r
ty
p
e
C
T4,
F
S
–
f
u
el
f
ee
d
er
te
mp
erat
u
re
sen
so
r
ty
p
e
C
T4,
C
W
U
–
H
UW
t
emp
.
sen
so
r
ty
p
e
C
T4,
RS
–
b
o
ile
r
re
tu
rn
w
at
er
te
m
p
erat
u
re
sen
so
r
ty
p
e
C
T4,
M1
/
M2
–
mi
xe
r
te
mp
.
sen
so
r
ty
p
e
C
T4,
BH
–
u
p
p
er
b
u
ff
er
te
mp
.
sen
so
r
ty
p
e
C
T4,
BL
–
l
o
w
er
b
u
ff
er
te
mp
.
sen
so
r
ty
p
e
C
T4,
WS
–
w
eat
h
er
te
mp
.
sen
so
r
ty
p
e
C
T6
-P,
FT
–
e
xh
a
u
st
t
emp
.
sen
so
r
ty
p
e
C
TS
2
,
TR
–
u
n
iv
ersal
b
o
ile
r
th
ermo
st
at
(
NO
-NC
),
H
–
o
u
tp
u
t
to
co
n
tr
o
l
th
e
si
g
n
al
in
g
al
arms
o
r
re
serve
b
o
ile
r,
RE
–
re
lay
(
1
2
V
,
ma
x.
8
0
mA
),
DS
-
i
n
p
u
t
to
t
h
e
se
n
so
r
o
p
en
in
g
o
f
fu
el
tan
k
fl
ap o
r
d
o
o
r,
R
PM
–
i
n
p
u
t
to
t
h
e
RP
M
sen
so
r.
L
N
PE
-
p
o
w
er
su
p
p
ly
2
3
0
V
~
,
GR
–
g
ro
u
n
d
st
ri
p
,
S
TB
–
sa
fe
ty
t
emp
erat
u
re
l
imi
te
r,
PO
–
mai
n
f
u
el
f
ee
d
er
,
W
-
f
an
,
PM
–
ci
rcu
lat
io
n
p
u
mp
,
P
CO
–
b
o
ile
r
p
u
mp
o
r
lo
ad
in
g
b
u
ff
er
p
u
mp
,
IG
–
i
n
g
it
io
n
,
P
CW
–
H
UW
p
u
mp
,
SM
1
/
S
M2
–
mi
xe
r
servo
,
PM
1
/
PM2
–
mi
xe
r
p
u
mp
,
C
PU
–
co
n
tro
lli
n
g
Summary of Contents for ecoMAX 860P
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Page 7: ...INSTRUCTION MANUAL ecoMAX 860P...
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Page 17: ...17 INSTALLATION AND SERVICE SETTINGS ecoMAX 860P...
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