Vemer Dafne User Manual page 38

6. Once all parameters are set, to exit and go back to the programming menu, press for a
short time the key
To exit and go back to the normal operation press for a long time the key
the time-out expiration (30 seconds about).
The programmable thermostats of Dafne series have two types of regulation:
During on/off regulation the programmable thermostat measures once a minute the
environment temperature and it carries out the regulation on the basis of the following
logic:
heating mode
relay ON
relay OFF
SET-DIFF
Temperature
increasing
switches on/switches off dangerous for the system in proximity to the reaching of the
setpoint).
In heating mode, the on/off regulation is available and also the proportional regulation
which in some systems allows a more precise regulation to obtain a constant
temperature.
proportional regulation. The band is centered on the setpoint and it can have values
between 0.5°C and 5°C; outside these values the heating will be
always on (if setpoint-band > environment temperature) or
always off (if setpoint + band < measured temperature).
.
SET
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Dafne programmable thermostat, user's manual
cooling mode
relay ON
relay OFF
SET
Temperature
increasing
or wait for
SET+DIFF