Sanyo CHX06052 - Manual (Page 165)

4-3
PCB and Functions
4
1. Outdoor Unit Control PCB
2. Functions (for CR-CHX06052)
CN51 2P plug (black): Automatic address setting pin
If the system address switch (S002: Factory setting is 0) is set to other than 0 (centralized
control), press this switch once to automatically set the address of the indoor unit to the
connected outdoor unit within the same system. While the automatic address setting is in
progress, 2 LEDs (red) on the outdoor unit control PCB blinks alternately. (The automatic
address operation will stop when this switch is pressed again.)
When other system in centralized control mode is in the progress of automatic address
setting, only the LED1 of the outdoor unit control PCB blinks and indicates that the
automatic address setting for other system is in progress. While other unit is in the progress
of automatic address setting, pressing S001 will disable the automatic address setting. •
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S002 Rotary switch (10 positions, black): Outdoor system address setting switch
The factory setting is 0 (1 system control), but it is necessary to set the address to each
system with the multiple system control or centralized control. (Fig. 4-1)
When system address is set to 0, automatic address will start simultaneously with power
activation, and it is not necessary to set the automatic address setting with SW01 switch
when there is only a single or simultaneously running multiple controls in a single system.
When multiple systems are operated in centralized control, maximum of 30 systems (up
to indoor unit 64 units) can be connected. When operated by group control or centralized
control, set the system address other than 0 (1 or more).
When the number of systems exceeds 9, you can set up to 30 systems by combining with
the dip switch S003. You can set up to 39, however control will be for 30 systems even if you
set more than 30. (For details, refer to Table 4-1.)
LED1 of the outdoor unit control PCB lights up and the warning “ ” is displayed in
remote control when the system addresses has overlapped (multiple equated addresses
exist). •
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S003 DIP switch (2P, blue): Switches for setting system address 10s digit and 20s digit
If 10 systems or more are set, the setting is made by a combination of this DIP switch and
S002.
If 10 - 19 systems are set, set switch 1P (10s digit) to ON.
If 20 - 29 systems are set, set switch 2P (20s digit) to ON, and set switch 1P (10s digit) to
OFF.
If 30 systems are set, set both switch 1P (10s digit) and switch 2P (20s digit) to ON. (For
details, refer to Table 4-1.) •
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CN14 2P plug (white): PCB inspection pin at the factory