19
8.4.8 Function of terminals
Please use the round-type terminal with correct specifications to
connect the power cord.
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. 8-12 Wiring of “ON/OFF ” weak electric port
The remote function of “HEAT/COOL” must be set by DIP
switch.The remote function “HEAT/COOL” is effective when
S1-1or S5-3 is chosen ON, at the same time, the wire controller
is out of control.
Corresponding parallel connect the “HEAT/COOL” port of the
main unit’s electric control box,then, connect the “ON/OFF” signal
(provide by user) to the “HEAT/COOL” port of main unit as
follows.
Wiring method:
For 65KW and 110KW:Shorting the terminal block CN138 at
slave board inside the electric control box to enable the remote
function of “HEAT/COOL”.
0# electric
control box
“HEAT/COOL” port
COOL
Power (DC 12V)
Main control board is provided
8.4.10 Wiring of “HEAT/COOL” weak electric port
0# electric
control box
“HEAT/COOL” port
HEAT
Power (DC 12V)
Main control board is provided
Fig. 8-13 Wiring of “HEAT/ COOL” weak electric port
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:
For 65KW and 110KW:Shorting the terminal block CN138 at slave
board inside the electric control box to enable the remote function
of “ON/OFF” .
The wired controller
communication
Uint communication
CN22(main board)
As shown in the figure below, For 65KWand 110KW,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.
When the auxiliary heater are added externally, a 3-phase
contactor must be used for control. The model of contactor is
subject to the power of 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 pipeline auxiliary heater and ac light of the state of
compressor is as follows.
Fig. 8-11 Wiring of pipeline auxiliary heater and
ac light of
the state of compressor(65KW and 110KW)
220-240V~
50Hz
L1/L2/L3
N
Coil of
3 phase
AC contactor
Max voltage:240VAC
Max current:5A
CN119(Slave board)
HEAT1
CN121(Slave board)
COMP-STATE
HEAT2
CN108(Slave board)
GND
0-10V
Pump
inverter
NOTE
CN125(Slave board)
NO NC COM
3-way
valve
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