Gree XE73-44/E Owner's Manual page 25

Smart zone
controller
Fig. 26
shows the schematic diagram of control system connection. XE73-44/E can connect the smart
zone controller (integrated control system). "n" indicates the number of communication node address
(programmable wired controller XE73-44/E). The complete system is composed of the smart zone
controller, wired controller XE73-44/E and communication cable. The wired controller XE73-44/E can
support 16 communication node addresses at the most (n≤16).
Terminal A and terminal B of the smart zone controller are respectively connected to the corresponding
communication needle stand terminal of the #1wired controller by the communication cable; the other
needle stand of #1 wired controller is connected to the #2 wired controller through the telecommunication
cable and so forth until connect to the #n wired controller. Except the last wired controller in the control
system (only use CN2 or CN3, and the other one will not be connected), there's no the sequence and the
importance for the wired controller. The series number in the figure is only for the sake of clarity.
Fig. 27
shows schematic diagram of DIP switch. There is a 2-bit DIP switch on the main board of wired
controller XE73-44/E. As for the last #n wired controller in the control system, the 1-bit and the 2-bit of the
DIP switch should be manually pulled to position "on" and position "off" respectively. The DIP switches of
other wired controllers should be kept at the initial ex-factory status (1-bit and 2-bit are set at position "off").
CAUTION!
Please pay special attention to the followings during the connection to avoid the malfunction of
the air conditioning unit due to electromagnetic interference.
Separate the signal and communication lines of the wired controller from the power
.
①
Wired Controller XE73-44/E
Fig. 26
Fig. 27
22