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Please change the slide switch setting before input power supply.
The slide switch setting table of this product is shown in Table 2.4. In addition, according to the using situation on the spot,
sometimes it may need to change factory setting.
2.5 Power Supply Input
When setting the slide switch, please refer to the following procedures.
(1) Turn off the power supply of the product, open the top cover.
(2) Change switch setting.
(3) Complete installation, wiring connection, by end of switch setting, close the top cover, tighten and fix the screws, please
complete the following operation, then input power supply.
※
Please connect to the power supply of all connected air conditioner group.
※
Carry out test run for all air conditioners, ensure that all air conditioners can work properly.
※
Please input main power supply.
※
Please input the power supply of the machine.
POWER lights up.
After about 10s, start the connection confirmation of the air conditioner.
During the air conditioner connection process, EUN lights up constantly.
※
It takes about 20 minutes the longest to complete the connection (according to actual connection quantity of the air
conditioner), when the product enters normal running air conditioner, RUN light flashes in 1Hz.
See lights status and light content at normal control (normal) and abnormal shown in below Table 2.5.
Table 2.5 Lighting condition table of each light
Name of light
State
Lighting condition
Condition of lighting off
POWER
Power supply
·Turn on power supply
·Cut off power supply
RUN
Connection
confirmation state
·Constant lighting up during connection
confirmation
·Flash in 1Hz in normal control
H-NET
H-NET
communication
state
·In the circumstance of receiving data in
H-NET
·In the circumstance of sending data in
H-NET
·In the circumstance of not
receiving data in H-NET
·In the circumstance of not sending
data in H-NET
Modbus
/BACnet
Modbus TCP
communication
state
·Light up when it’s connected to Modbus
TCP
· Flash when data has been received on
Modbus TCP
·In the circumstance of not
receiving data in Modbus TCP
WIFI
WIFI
communication
state
·Light up when it’s connected to WIFI
·Flash when data has been received on WIFI
·In the circumstance of not
receiving data on WIFI
RS-485
Modbus RTU
communication
state
·In the circumstance of receiving data in
Modbus RTU
·In the circumstance of sending data in
Modbus RTU
·In the circumstance of not
receiving data in Modbus RTU
·In the circumstance of not sending
data in Modbus RTU
2 Installation construction