24
220-240V~
50Hz
L1/L2/L3
N
Coil of
3 phase
AC contactor
Coil of
3 phase
AC contactor
Fig. 8-20 Wiring of water pump and pipeline auxiliary heater
and
ac light of the state of compressor(only for
KEM-90 DRS5 KH
and
KEM-180 DRS5 KH
)
When the water pump and auxiliary heater are added externally,
a 3-phase contactor must be used for control. The model of
contactor is subject to the power of water pump and heater
power. The contactor coil is controlled by the main control board.
See the figure below for coil wiring. For specific wiring, see
chapter 8.4.14 .
The user can connect an ac light to monitor the state of
compressor.When the compressor is operating,the light will be
powered on.
The wiring of water pump and pipeline auxiliary heater and ac light
of the state of compressor is as follows.
The wired controller
communication
Uint communication
XT2
Fig. 8-18 Wiring of unit communication and
the wired controller communication
As shown in the figure below, For
KEM-90 DRS5 KH
and
KEM-180 DRS5 KH
: the uint communication signal wire is
connected to the terminal block XT2 at 5(X), 6(Y) and 7(E),
and
the wired controller signal wire is connected at 8(X), 9(Y)
and
10(E) inside the electric control box. For specific wiring,
see
chapter 8.4.14
Max voltage:240VAC
Max current:5A
NOTE
Please use the round-type terminal with correct specifications to
connect the power cord.
CN26(Main board)
HEAT1 HEAT2 COM
CN33(Main board)
COMP-STATE
CN25(Main board)
PUMP
Fig. 8-19 Wiring of water pump and pipeline auxiliary heater
and
ac light of the state of compressor(only for
KEM-75 DRS5 KH
and
KEM-140 DRS5 KH
)
0# electric
control box
“ON/OFF” port
ON
Power (DC 12V) Main control board is provided
0# electric
control box
“ON/OFF” port
OFF
Power (DC 12V) Main control board is provided
Fig. 8-21-1 Wiring of “ON/OFF ” weak electric port
220-240V~
50Hz
L1/L2/L3
N
Coil of
3 phase
AC contactor
Coil of
3 phase
AC contactor
Max voltage:240VAC
Max current:5A
CN119(Slave board)
HEAT1
CN121(Slave board)
COMP-STATE
CN123(Slave board)
PUMP
HEAT2
8.4.9 Wiring of “ON/OFF” weak electric port
The remote function of “ON/OFF” must be set by DIP switch .The
remote function of “ON/OFF” is effective when S1-1 or S5-3 is
chosen ON, at the same time, the wired controller is out of control.
Corresponding parallel connect the “ON/OFF” port of the main
unit’s electric control box,then, connect the “ON/OFF” signal
(provide by user) to the “ON/OFF” port of main unit as follows.
The remote function of “ON/OFF” must be DIP switch set.
Wiring method:
KEM-75 DRS5 KH
8L-B and
KEM-140 DRS5 KH
:Shorting the
terminal block CN137 at slave board inside the electric control box
to enable the remote function of “ON/OFF” .
For
KEM-90 DRS5 KH
and
KEM-180 DRS5 KH
: Shorting the
terminal block XT2 at 15 and 24 inside the electric control box to
enable the remote function of “ON/OFF” .
The wired controller
communication
Uint communication
CN22(main board)
8.4.8 Function of terminals
As shown in the figure below, For For
KEM-75 DRS5 KH
and
KEM-140 DRS5 KH
,the uint communication signal wire and the
wired controller signal wire is connected to the terminal block
CN22 at XYE on main board inside the electric control box. For
specific wiring, see chapter 8.4.14
NOTE
For
KEM-180 DRS5 KH
, Model A is connected to Model B, Model B is
connected to Model A in the next uint. For specific connection, see
chapter 8.4.14.
CN27(Main board)
SV1
Brown
Black
Blue
NO NC N
