170
DC Inverter Multi
VRF Service Manual
1�3 Number of indoor units display
Access method: Short press SW10 (KEY1) twice within 2 seconds to enter into “Indoor Unit Number Detection”
mode;
Operation state: The LED6-LED1 display the binary value of the number of indoor units, maximum up to 63 sets
(bright, bright, bright, bright, bright, bright).
When the number of indoor unit is “0”: The LED6-LED1 display the adaptor board communication error code:
(bright, blink, dark, blink, blink, dark)
Exit method: Short press SW10 (KEY1) twice within 2 seconds to exit to normal mode;
Number of indoor units
Lamp display
LED6
LED5
LED4 LED3 LED2 LED1
1
●
●
● ● ● ○
2
●
●
● ● ○ ●
3
●
●
● ● ○ ○
4
●
●
● ○ ● ●
5
●
●
● ○ ● ○
6
●
●
● ○ ○ ●
: : : : : : :
: : : : : : :
62
○
○
○ ○ ○ ●
63
○
○
○ ○ ○ ○
Legend: bright ○; dark ●; blink
1�4 When the patching board is not communicated with indoor unit, if the complete unit stops, the address code of
patch board and “E6” will be displayed alternately (as shown in Fig 1), and that is normal condition�
The patching board is not communicated with indoor unit（Fig 1）
If the complete unit is running, the address code of patch board and “E6” will be displayed alternately (as shown in
Fig 2), and that is normal condition.
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