Orbis Chronos Manual Del Usuario página 61

iii. the month (1...12)
iv. the hour
6. Once all parameters are set, to exit and to go back to the programming menu, press for
a short time the key
To exit and to go back to the normal operation press for a long time the key
for the time-out expiration (30 seconds about).
The Chronos has got 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
where SET represents the setpoint and DIFF the hysteresis (useful to avoid continuous
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.
This regulation requires to specify two parameters:
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
.
REGULATION TYPE
cooling mode
relay ON
relay OFF
SET
Temperature
increasing
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CHRONOS Programmable Thermostat User Manual
or wait
SET SET+DIFF