19
Please use the round-type terminal with correct
specifications to connect the power cord.
NOTE
8.4.8 Function of terminals
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.
CN22 (main board)
Uint
communication
The wired
controller
communication
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.
L1/L2/L3
N
0-10
V
CN119 (Slave board)
HEAT2
HEAT1 COMP-STATE NO NC COM CN108 (Slave board)
GND
CN121 (Slave board) CN125 (Slave board)
Coil of 3 phase
AC contactor
220-240V~
50Hz
Max voltage:240VAC
Max current:5A
Pump
inverter
3-way
valve
Fig. 8-11 Wiring of pipeline auxiliary heater and
ac light of the
state of compressor (65KW and 110KW)
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” .
0# electric
control box
“ON/OFF” port
Power (DC 12V)
Main control board is
provided
ON
OFF
Power (DC 12V)
Main control board is
provided
0# electric
control box
“ON/OFF” port
Fig. 8-12 Wiring of “ON/OFF ” weak electric port
8.4.10 Wiring of “HEAT/COOL” 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
Power (DC 12V)
Main control board is
provided
HEA
T
COOL
Power (DC 12V)
Main control board is
provided
0# electric control box
“HEAT/COOL” port
Fig. 8-13 Wiring of “HEAT/ COOL” weak electric port
Summary of Contents for KEM-HT-65 DRS5
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