16
2-13
2.6 ELECTRICAL CONNECTION FOR
PLUS BOILER AND PHOTOVOLTAIC
SYSTEM.
Ke
y:
A3
-
In
te
gr
at
ed P
.C.B
.
B2
-
D
HW p
ro
be
K1
-
D
om
es
tic h
ot w
at
er u
na
bl
in
g r
ela
y
R1
-
Re
sis
ta
nc
e (2.2 KΩ)
Ke
y:
A3
-
In
te
gr
at
ed P
.C.B
.
B2
-
D
HW p
ro
be
N.B
. W
ith t
hi
s co
nfigura
tio
n t
he b
oi
ler c
an s
ho
w a
n
er
ro
r o
n t
he do
m
es
tic p
ro
be
Po
we
r s
up
ply
230 V
ac
50H
z
Po
we
r s
up
ply
230 V
ac
50H
z
PV f
un
ctio
n
co
nt
ro
l
PV f
un
ctio
n
co
nt
ro
l
Bo
iler
Bo
iler
