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Thermostat
Communication objects and ETS parameters
Switching Time Between Speeds
This is the time you need to wait for the activation of the speed
after switching on the valve (allows the fan coil battery to
reach the correct temperature before circulating the air). This
parameter is also used between one speed change and another
to avoid continual speed switching near the thresholds.
Proportional fan coil operation
Proportional fan operation is similar to that of the three-speed
fan coil. When the valve is OFF the proportional speed is equal
to 0%; when the valve is ON the value of the proportional
speed depends on the difference between the setpoint and the
temperature measured in the room. The greater the difference,
the higher the set proportional value of the speed. When this
difference exceeds the value of the "Threshold for Speed at
100%" the proportional output of the fan is set to the highest
possible speed that is 100%; when the difference is minimal
the proportional speed is set to "Minimum Fan Speed". The
operation of the proportional fan, as for the three speeds, can be
set automatically or, in manual mode, to the value invoked by the
thermostat button or set by the object "Proportional (0-100%)
- Fan Inputs"
N.B.: Fore reasons tied to the safety of systems, if the
valve is active the user will be unable to set "OFF" from the
thermostat. It will therefore be necessary to turn off the valve
by setting the thermostat to another mode or by modifying its
setpoint.
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