Sinclair SDV 6 User & Installation Manual page 18

There should not be more than one schedule act at the same
time. Otherwise, a conflict may occur.
Complete the date setting before the first schedule setting.
Delayed off
This function is only effective after the schedule is enabled. After
delayed off is set, the air conditioner will delay its shutdown in
accordance with the set delay based on the original schedule power-off
time.
Delayed off is one-off. After executing a power-off delay act,
you have to set another delayed off act to execute such
function again.
CAUTION
CAUTION
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