emmeti CTTS RF User Manual page 60

setpoint value – band, the more the activation time will be predominant in comparison
with the deactivation time; on the contrary, the more the measured temperature is next
to the setpoint value + band, the more the deactivation time will be predominant in
comparison with the activation time).
Once regulation period is passed, the instrument compares again the environment
temperature with the setpoint and it updates the activation and deactivation times for
the new period.
The result of the proportional regulation is subordinated to the correct selection of the
parameters.
Select the value of the regulation type as follows:
• 10' for low thermal inertia systems (fan-coil)
• 20' for medium thermal inertia systems (aluminium radiators)
• 30' for medium thermal inertia systems (aluminium radiators)
Select the regulation band value as follows:
• broad band (5°C) for systems with high thermal gradient
• narrow band (0.5°C) for systems with low thermal gradient
Attention: in default status the instrument is configured to operate in on/
off with hysteresis set at 0.3°C. This configuration is suitable for the most
part of the situations and for this reason it's advisable to modify it only in
particular situations.
To modify the regulation type, hysteresis values (on/off regulation), band and To modify the regulation type, hysteresis values (on/off regulation), band and
period (proportional regulation) see "Regulation parameters" at page 18). period (proportional regulation) see "Regulation parameters" at page 18).
tP regulation
Note. This regulation should be used only if you are controlling a valve for
ACTVR RF radiators.
This type of regulation allows you to make the ACTVR RF valve work "by the opening
modulation". In this way, the valve opens in proportional mode according to the
difference between the set temperature (setpoint) and the detected temperature.
Selecting one of the other regulation types, the valve will not work in proportional
mode, but it will be completely open or completely closed according to the difference
between the set temperature and the detected temperature.
Emergency regulation (for heating mode only)
The instrument performs a regulation of emergency if an error occurs during the
CTTS RF Radiofrequency digital programmable thermostat User Manual
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