EAS ELECTRIC ECRTH2 Manual De Instrucciones página 88

The operation mode can not be changed see cool MODE SETTING on
installation and ower's manual.
If you
Then the space operation mode is...
select...
Always heating mode
heat
Always cooling mode
cool
Automatically changed by the software based on the outdoor
temperature (and depending on installer settings of the
indoor temperature), and takes monthly restrictions into
A account.
Note: Automatic changeover is only possible under certain
auto
conditions.
See the FOR SERVICEMAN> AUTO MODE SETTING in
"Installation and ower's manual (M-thermal split indoor unit)".
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