e t I
m
1
S
2
3
4
5
6
7
M
Outside circulation pump
8
9
1
0
1
1
1
2
13
Booster heater control cable
14
15
Power supply cable for unit
16
Power supply cable for solar
17
Power supply cable for mixing
18
19
outside circulation pump
Power supply cable for DHW
20
21
22
Backup heater control cable
(a) Minimum cable section AWG18 (0.75 mm
(b) The temperature sensor cable are delivered with the unit
Equipment must be grounded.
All high-voltage external loads, if it is metal or a grounded port, must be grounded.
All external loads current is needed less than 1.5A, if the loads current is greater than 1.5A,Single external load current is needed less than
0.2A, if the single load current is greater than 0.2A, the load must be controlled through AC contactor.
D
s e
r c
p i
o i t
n
o
r a l
e
n
r e
y g
i k
s t
g i
n
a
c l
a
b
e l
U
s
r e
n i
e t
f r
c a
e
c
a
b
e l
R
o
o
m
h t
r e
m
s o
a t
c t
a
b
e l
B
i o
r e l
c
o
t n
o r
c l
a
b
e l
T
h
r e
m
t s i
r o
c
a
b
e l
S
o
r a l
p
u
m
p
c
o
t n
o r
p l
u
m
p
x i
n i
g
p
u
m
p
c
o
t n
o r
c l
a
b
e l
control cable
D
H
W
p
u
m
p
c
o
t n
o r
c l
a
b
e l
2
w -
y a
v
l a
e v
c
o
t n
o r
c l
a
b
e l
3
w -
y a
v
l a
e v
c
o
t n
o r
c l
a
b
e l
T
h
r e
m
t s i
r o
c
a
b
e l
Power supply cable for
booster heater
Power supply cable for
backup heater
pump
pump
Power supply cable for
pump
Thermistor cable
)
2
Required number of
A
C
D /
C
conductors
A
C
2
A
C
5
A
C
2
r o
/
2
D
C
2
/
2
/
2
A
C
2
A
C
2
A
C
2
A
C
2
r o
D
C
2
A
C
2
A
C
2
2+GND 1-phase
AC
3-phase
2+GND 1-phase
AC
3-phase
A
C
2
A
C
2
A
C
2
A
C
2
A
C
2
A
C
2
24
Maximum running current
2
0
0
m
A
2
0
0
m
A
3
2
0
0
m
( A
) a
2
0
0
m
A
2
0
0
m
A
2
0
0
m
A
2
0
0
m
A
2
0
0
m
( A
) a
2
0
0
m
( A
) a
2
0
0
m
( A
) a
3
2
0
0
m
( A
) a
(
) b
2
0
0
m
( A
) a
2
0
0
m
( A
) a
3+GND
31A 1-phase
15A 3-phase
3+GND
14A 1-phase
6A 3-phase
2
0
0
m
( A
) a
2
0
0
m
( A
) a
2
0
0
m
( A
) a
2
0
0
m
( A
) a
2
0
0
m
( A
) a
2
0
0
m
( A
) a
V.1