Centralized Controller; Function; Operation View - Gree DC Inverter Multi VRF Service Manual

DC INVERTER MULTI VRF
electromagnetic interference.
1. Keep the signal lines or wirings (communication) of region controller or wired controller at least 20
cm from the power cords or connecting lines between indoors and outdoors to prevent abnormal
communication.
2. Shielding twisted pair line must be adopted as signal line or wiring (communication) once the unit
is installed in the place where there is serious electromagnetic interference.

6 CENTRALIZED CONTROLLER

6.1 Function

Main characteristics of Centralized Controller:
A set of Centralized Controller can control 64 communication modules and can connect to as
much as 1024 indoor units. It can conduct individual control with any separated area or unified
control. It can monitor or control On/Off, Mode, Temperature setting and Timer On/Off of indoor
unit etc.
It can realize the central, single or select control to all indoor units.
It can organize several indoor units into groups as you desired and conduct unified
control—Group select control.
Error contents are shown by codes. Corresponding communication module numbers of the indoor
units with error contents would blink for rapid inspection and repair (There is sound warning for a
few errors).
Timer function. Every indoor unit can set Timer On/Off time by central, single or select control.
Both Timer On time and Timer Off time can be set at the same time, and it is available to set the
timer to which day among the 7 days from Sunday to Saturday works.
Clock function displays in year, month, day, hour, minute and week, and the clock can be
manually adjusted.
Indoor and outdoor units online auto detect, display and working state indication.
Self-inspection function is remained.
Centralized Controller and several communication modules formed communication net, the length
of communication wire of the net can be as long as 1km (without using communication repeaters).

6.2 Operation View

(Fig.6.2)
CONTROL
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