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Installation and Debugging
6. After finishing the wiring work of communication bus, perform the connection between
detector bus and communication bus: multiple detectors are parallel connected with
communication bus; all the A interfaces (including central controller or weekly timer)
are in the same bus; all the B interfaces (including central controller or weekly timer)
are in the other same bus; A interface wire and B interface wire at the end of the
communication bus is respectively connected a 100 metal film precise resistor; the
communication bus shielded wire is single point grounded in the middle part; the total
length of communication bus is limited in 1000m.
7. After finishing installation and connection of detector, perform central controller or
weekly timer connection with communication bus: central controller or weekly timer
connects with communication bus by RS-485 interface 2-core screw fixed terminals (A,
B); the connecting position is in the middle part of communication bus and near the
grounded point of its shielded wire.
8. Powered on debug: after powered on, the central controller will circularly monitor
the detectors and air conditioners in the communication bus. After searching a period
of time, the unit number shall expectedly display. If abnormal, perform check and debug.
9. After finishing debugging of central controller, powered on weekly timer. If at this
time appears disorderly communication, please check the address setting of weekly timer
and central controller. If communication normal, perform clock calibration and timing
setting. After the timing function achieves, finally perform Holiday function checking.
10. After debugging, record the debugging process, and after training the personnel,
deliver the engineering.
11. Setting of central controller's dial-code switch: if the dial-code switch is in OFF
position, indicates 0; if in ON position,
indicates 1. For the address number
setting, please refer to the
following table:
Note: D1, D2 not used
No.
D3, D4
1
0 0
2
0 1
3
1 0
4
1 1
17
Address
F F H
F E H
F D H
F C H
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