Haier AB242ACBEA Service Manual page 38

Preparation before installing convertible type unit
Before installation of convertible type unit, please confirm which type will be selected: in
the ceiling or on the floor.
There is a dial switch K1 on the PCB, if you select D, that means the installation is in the
ceiling. If you select L, that means installation position is on the floor.
D
L
K1
In the ceiling mode, there will a 4 degrees temperature compensation in heating mode.
Because in heating mode, the warm air will rise and stay in higher position. If there is not
temperature compensation, when the set temperature has arrived, it may happen that the
air in higher position has become the set temperature, but the air in lower position has not
arrived the set temperature.
There is no different for the operation of swing and the heating capacity.