Vemer CHRONOS Series User Manual page 56

) and summer-cooling ( ).
For further information about the operating mode see the chapter "Regulation
types" on page 27.
(only for heating mode)
Reg 0) or
proportional (rEg P).
For further information about regulation type see the chapter "Regulation
types" on page 27.
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CHRONOS Programmable Thermostat User Manual