E93.1001EN.C Manual CD
+
37
only when unit is
cascaded
to
slave
boiler
to
master
boiler
connection
examples
POWER
SUPPLY
H
ea
t de
m
a
nd
N
.O
.
B
u
rn
e
r bur
ni
ng
N
.O
.
L
oc
k
-ou
t
N
.O
.
CN4
CN not used
10
9
8
1
2
4
3
5
6
7
1
2
4
3
5
6
7
6
5
3
4
2
1
K5
K9
K6
K2
K2
K6
K2
K6
K2
K8
K6
K3
K8
K4
K7
FAN
fus
e 2
fus
e 1
F2
F1
boiler casing
CN10
[c
lo
s
e
]
N
H
e
at
d
em
an
d N
O
CN8
ignition
transformer incl.
ionisation input.
T2
H
e
at
d
em
an
d N
O
CN5
CN1
CN3
M
A
IN
S
L'
M
A
INS
N'
Lo
c
k
-O
ut
N
O
F
lam
e on
N
O
Lo
c
k
-O
ut
N
O
F
lam
e on
N
O
P
um
p
3
, N
'
P
u
m
p
3,
L'
G
as
V
al
v
e
,
N
'
G
a
s
V
a
lv
e,
L'
P
u
m
p
1,
L'
P
um
p
1
, N
'
P
um
p 2 /
3-
w
a
y
,
L
' (
N
O
)
P
um
p 2 /
3
-w
a
y
,
N
'
[open]
3-
w
ay
, L
' (
N
C
)
L N
MAINS 230 VAC
BURNER
BURNING
34
33
32
27
26
25
21
20
19
22
23
24
HEAT
DEMAND
LOCK-OUT
N.O.
N.O.
N.O.
17
18
A B
CASCADE
CONNECTION
28
29
30
31
WIRING COLORS
K0=white
K6=blue
K1=yellow
K7=red
K2=brown
K8=black
K3=green
K9=purple
K4=grey
K10=yellow/green
K5=orange
K
10
K
10
K
10
K
10
K10
K8
K8
T
h
e
rm
.s
tat
230v
T
h
e
rm
.s
tat
230v
L N
CIRCULATION PUMP
P3
L1 N L2
DO NOT USE
When using a RCW controller:
Rewire terminal as shown
so CN5 7/8 are bridged.
external water heater
circulation pump
