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Simultaneous Mode Lockout
Simultaneous Mode Lockout occurs when indoor units connected to the same Condenser call for
different modes (Cooling/Heating)
FAN
SPEED
TEMP
• If indoor units started later are operated in different mode from earlier one, LCD will
display 'CH07'.
• If 'CH07' is displayed, please change the mode.
• Different mode operation is not error.
1
2
3
OPER
MODE
If one indoor unit operate heating mode while
several indoor units are operating cooling
mode, outdoor segment and cooling segment
are blinking like display on the left.
=> It means operation of cooling mode in
outdoor unit.
If one indoor unit operate cooling or
dehumidification mode while several indoor
units are operating heating mode, outdoor
segment and cooling segment are blinking.
=> It means operation of heating mode in
outdoor unit.
If pressing
button, indoor unit
automatically runs at the mode that different
indoor units are running after about 5
seconds and operates.
Operating Introductions
Owner's Manual 15
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