Gree U-MATCH GFH09K3CI, Service Manual

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A/A DC INVERTER U-MATCH AIR CONDITIONERS CONTROL
37
Caution:
During connection of wirings, pay special attention to the following items to avoid interference of electromagnetism
to unit and even failure of it.
1. To ensure normal communication of the unit, signal line and wiring (communication) of wired controller should be
separate from power cord and indoor/outdoor connection lines. The distance between them should be kept 20cm
in min.
2. If the unit is installed at the place where there is interference of electromagnetism, signal line and wiring
(communication) of wired controller must be shielded by twisted pair lines.
4.3.2 Project Debugging
Enquiry of wired controller’s address: Press
Function
and
Mode
buttons at the same time for 5s under off state
of the unit, and then LCD displays wired controller’s address number.
Setting of wired controller’s address: Press
Function
and
Mode
buttons at the same time for 5s.In this case,
LCD displays address number. Then press ▲ or ▼ button to adjust address (address no.:1-16) .After that, press
Enter/cancel
button to confirm.
Addresses of the wired controller are used for centralized control of wired controller. Enquiry and setting of
wired controller’s address is shown as Fig.4.3.4 below:
Fig.4.3.4: Enquiry and Setting of Wired Controller’s Address