7
5. Press ENTER again to exit the program-
ming menu. The programmable thermostat
operating mode previously interrupted will be
resumed.
Summer/Winter selection
To shift from the Summer opera-
tion (heating system) to the Sum-
mer operation (cooling system),
and vice versa, keep the Sum-
mer/Winter button depressed for
at least 4 seconds. The selected
operation will be shown on the
display by means of the “Winter”
or “Summer” icons.
Winter
Summer
Operating modes
The CH150/151/152 programmable thermo-
stat features four different operating modes:
Manual, Automatic, Holiday and Jolly (in addi-
tion to the OFF function).
“Manual” operating mode
With the Manual operating mode, the program-
mable thermostat adjusts the operation of the
heating or cooling system in order to always
keep the same temperature. To select “Manu-
al”, press MAN.
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