Domestic Hot Water Heat Pump Service Manual
10
4.2
Schematic
=
Sch
em
atic
show
s all
available
options
conn
ec
te
d
to t
h
e
DHWHP
P
C
B
. I
n
reality
it
is n
ot p
os
sible
to c
onn
ec
t
th
e
so
lar t
h
erm
al
p
an
el
/
circu
it
at
th
e
same
tim
e
as t
h
e
u
n
d
erflo
or
h
eat
ing
c
ircu
it.
It
is only
p
os
sible
to c
onn
ec
t
one
of
th
ese
options
to t
h
e
DHWHP
at
an
y
one
tim
e
=
Sch
em
atic
show
s all
available
options
conn
ec
te
d
to t
h
e
DHWHP
P
C
B
. Th
ese
options
are
only
available
wi
th
th
e
d
elu
xe
m
odel
DHWHP
u
n
its on
ly.
BLU
B (D
-)
L N
L
N
0V
0V
L
L
0V
0~10V
Input
BT3
EB
1
0V
0V
0V
FM
BT2
BT1
0V
0V
L
N
PE
2
3
0
V
AC
~
5
0
Hz
0V
A (D+
)
0V B
LU
0~10V
P
WM
YEL
H
ig
h pre
ss
ur
e
s
wi
tch.
C
om
pr
e
ss
or
STO
P
whe
n
P
d
≥
2.0M
P
a
Sol
e
noi
d
val
ve
.
Sol
e
noi
d
O
N
fo
r 2
m
in
be
fo
re
com
pr
e
ss
or
st
arts
and duri
ng
sy
st
e
m
de
fros
t
BR
N
BLK
N
B
LU
B
LK
B
R
N
BR
N
BLU
#1
En
er
gy
M
eter
C
om
m
uni
cat
ion
to
/ from
powe
r
gr
id
SG
2
SG
1
0V
0V
#2
#2
Modbus
comm
unicat
ion
Inv
e
rt
e
r
#2
Sol
ar
PV
BT4
#1
#1
#2
BT5
U
nde
r
fl
oor
he
at
ing
or
C
ool
ing
R
oom
te
m
pe
rat
ur
e
U
nde
r
fl
oor he
at
ing
ci
rcui
t
#2
Sol
ar
Ther
m
al
BT5
#1