Service manual EKCO.L2N
26
6.4. Universal wiring diagram 230/400V~ ver.2.
Pic.22. 4-14,4 kW 230/400V~ ver.2 (date of production after 17-11-2010).
N
G1
L1
G2
L2
G3
L3
PSK.P5
1
G1
2
1
G2
2
G3
1
2
ZTD
LB
LA
N
L
Pompa
N
ZM
Ciś.
Twyj
.
Twej
.
Q
L
N
ZG
ZM
PSK.P5
L
N
M1
P
T2
T1
Q
Kp
Kd
NA
RP
L
Zas.
N
U
V
W
W
T
-3
N
PE
U
N
Tzas
NTC
LA
LB
ZTD
N
Power
supply
230V
N~
BK
RP
NC
NC
F1
F2
T1
-
return
temperature
sensor
MSK
-MSK
board
ZM
-power
board
Q
-
flow
sensor
Z
G
-
heating
box
K
p
-
front
cover
M
1
-
circulating
pump
XP
-
terminal
strip
LPE
F1
-
WT
-3
cut-out
T2
-
flow
temperature
sensor
Kd
-
bottom
cover
BK
-
boiler
lock
(always
closed)
RP
-room
thermostat
(or
jumper)
ZTD
-three-way
valwe
Tzas
-DHW
temperature
sensor
or
DHW
thermostat
connection
F2
-pump
fuse
P.
-
pressure
sensor
The
sec
ond
version
allo
w
s y
ou
to
configur
e
the
installa
tion
for
one
or
thr
ee
-phase
po
w
er
. B
oiler
is
configur
at
ed
for
a
single
phase
by
fac
tor
y.
T
o
connec
t
boiler
to
thr
ee
-phase
installa
tion
should
be
remo
ved
wir
e
on
pr
imar
y
side
W
T-3,
and
and
connec
t supply
wir
e
(U
,V
,W
) t
o tha
t plac
e.
