Lochinvar CP-M Series, Installation, Commissioning & Maintenance Instructions

Page: 44 / 94

44
11.6 CP-M+ WIRING DIAGRAM
FIGURE 11.2 WIRING DIAGRAM
K8
K0
K6
K7
K7
K7
K8
K7
K1
K1
ref.1
K2
K2
K2
only when unit is
cascaded
to
slave
boiler
to
master
boiler
Re
mo
te
tem
pe
rat
ur
e
s
et
po
in
t
or
bu
rne
r i
np
ut
s
ig
na
l
for
m
BMS
wa
ter
pr
essu
re
s
w
itch
C
a
lo
ri
fie
r
th
e
most
a
t
C
a
lo
ri
fi
e
r
s
e
n
s
o
r
1
0
K
E
x
te
rn
a
l
flo
w
s
e
n
so
r
1
0
K
O
u
td
o
o
r
s
e
n
s
o
r
1
2
K
connection
examples
POWER
SUPPLY
He
at
de
m
an
d
N.O.
F
la
me
o
n
N.O.
Lo
c
k
-ou
t
N.O.
K4
K4
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
K9
K9
K6
K2
K2
K6
K2
K6
K2 K8
K6
K3
K8
K4
K7
K1
K0
K6
K6
K8
K8
K0
K0
K3
K3
K5
K5
K6
K2
K10
K6
K2
FAN
FAN
internal
connections
internal
connections
connection
examples
fus
e 2
fus
e 1
F2 F1
ref.1
N.
C
.
N.C.
boiler casing
CN10
[cl
ose]
N
boiler pump
(pump1)
gas valve(s)
He
at
de
man
d
N
O
ionisation and/or ignition
CN8
ignition
transformer incl.
ionisation input.
T2
CN7
display
CN6
He
at
de
man
d
N
O
O
pe
nT
her
m
/
po
we
r
s
tea
ling
the
rm
ost
at
fan control
fan PWM
fan Hall
+24Vdc
-
siphon pressure switch (PSW)
clixon/maximum (S6/S7)
water thermostat 24vdc
return sensor ntc (S2) 10K
flow sensor ntc (S1) 10K
CN5 CN1 CN3
CN12
14 13 12
11
10
9 8
7 6 5 4 3 2 1
12
11
10
9
8
7
6
5
4
3
2
1
CN10
CN11
2
3
4
5
6
7
8
16
15
14
13
12
11
10
1
2
3
4
5
6 7
8
9
10
11
12
1 2 3 4 5 6 7
8 9
10
11
12 13 14
MA
IN
S
L
'
MA
IN
S
N
'
Loc
k-Ou
t NO
F
la
me
on
N
O
Loc
k-Ou
t NO
F
la
me
on
N
O
P
um
p
3,
N
'
P
um
p
3,
L
'
G
as
V
alve, N
'
G
as
V
alve, L
'
P
um
p
1,
L
'
P
um
p
1,
N
'
P
um
p
2
/
3-
way,
L'
(
N
O)
P
um
p
2
/
3-
w
ay,
N
'
[ope
n] 3-
wa
y
,
L
' (
N
C
)
out
Gnd
1
9
17
18
18
17
9
1 10
11
12
13
14
15
16
8
7
6
5
4
3
2
L N
Mains 230 VAC
L N
CH System
Pump P3
BURNER
BURNING
+ -
0 - 10
VDC
On/Off Stat
or
OpenTherm
Heating
Circuit
34 33 32 27 26 25 21 20 19 16 15 14 13 6 5 4 3 2 1
GENERAL
BLOCKING
22 23 24
HEAT
DEMAND
LOCK-OUT
N.O. N.O. N.O.
EXTERNAL
FLOW
SENSOR
CALORIFIER
SENSOR
or
THERMOSTAT
7 8 9 10 11 12
EXTERNAL
WPS
OUTDOOR
SENSOR
17 18
A B
CASCADE
CONNECTION
28 29 30 31
CN15
EMPTY
K8
K6
K8
K6
K3
L1 N L2
Divertor Valve Calorifier
by Calorifier Pump P2
K2
wire
bridge
External safety device:
- External flow switch
- Smoke detection
- Gas detection
- Ventilation fan
- Flue gas fan
- End switch motor actuated
flue gas valve
- Gas leakage tester
- etc
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
1
0
K
1
0
K
1
0
K
1
0
K10
K8 K8
Therm
.s
ta
t
2
3
0
v
Therm
.s
ta
t
2
3
0
v
pump
connector
flue sensor ntc (S5) 10K
water pressure sensor
(water pressure switch will
be mounted above 4 Bar)
+5V
out
Gnd
N.
C
.
rear wall thermal
fuse
K1
K1
(water pressure switch
connection) Not used
Model 60
has
no
th
e
rm
a
l
fu
se
and no t
herma
l
sw
it
ch
.
B
ot
h
c
on
ne
c
tio
ns
a
re
br
idg
ed
.
N.
C
.
burner door thermal
switch