16
Correct
Wrong
8.5.7 Requirements for power cord connection
L1 L2 L3 N
L1
L2 L3
N
L1 L2 L3 N
L1
L2 L3
N
Fig. 8-11 Requirements for power cord connection
8.5.8 Function of terminals
The wired controller
communication
Uint communication
XT2
Fig. 8-12 Wiring of unit communication and
the wired controller communication
220-240V~
50Hz
L1/L2/L3
N
Coil of
3 phase
AC contactor
HEAT1
PUMP
COM
N
XT1
Coil of
3 phase
AC contactor
8.5.9 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 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: Shorting the terminal block XT2 at 15 and 24
inside the electric control box to enable the remote function of
“ON/OFF” .
Fig. 8-13 Wiring of water pump and pipeline auxiliary heater
and
ac light of the state of compressor
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 8.5.13 .
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.
As shown in the figure below, 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 8.5.13.
Max voltage:240VAC
Max current:5A
COMP-STATE
NOTE
Please use the round-type terminal with correct specifications to
connect the power cord.
20
Содержание SCV EB Series
Страница 1: ...AIR COOLED CHILLER UNIT INSTALLATION AND USER MANUAL SCV XXX B AIR CONDITIONING...
Страница 2: ...Original instructions...
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Страница 50: ...NOTE 44...
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Страница 52: ...0 1 234 56 0 7 8 234 0 9 1 7 1 0 6 16 3 5 9 4 260 88 4 260 88 08 88 688 0 4 08 4 6 4A8 60 B...