42
Multi VRF Indoor
Unit Service Manual
CONTROL
2 WIRELESS REMOTE CONTROLLER
This service manual contain two wireless remote controllers Y512 and YB1FA. Y512 is applicable to all
standing type.
2�1 Wireless Remote Controller Y512 (Standard)
Operation procedure
Normal procedure
1) Press the ON/OFF button after the unit is energized, then the unit starts operating.
2) Press MODE button to choose the desired operation mode.
3) Press FAN button to set the fan speed.
4) Press +/- button to set the
desired
temp.
Selectable procedure
5) Press SLEEP mode to set the sleep state.
6) Press TIMER OFF button to set the time.
NOTE!
After every indoor unit receives the TURN-OFF signal, the fan and electric expansion valve will continue
to work for 20-70 seconds to make use of the rest cool or rest heat, preparing for the next operation, which is
a normal phenomenon.
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