194
• Communication LED
3U55S2SR2FA and 3U70S2SR2FA are with 3 green LED that means 3 indoor units, and 4U85S2SR2FA with 4
green LED means 4 indoor units. 5U105S2SS2FA with 5 green LED means 5 indoor units.If one LED keep lighting
that means the corresponding indoor unit has good communication with outdoor unit. If one LED is not lighting, that
means there is no communication between indoor and outdoor.
Notes:
1) When using this product, you need not to set the address. But the L/N wires between indoor & outdoor units
must be corresponded, or there will be communication failure.
2) Quiet Operation Setting. Set the DIP "8" to ON position of SW5, the system will run with lower noise, but the
max. capacity will also reduce slightly.
3) Do not change the settings of other switchs, wrong settings can make the system damage or other malfunctions.
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