USER INSTRUCTIONS
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25
FAN COIL WITH ON-OFF SPEED CONTROL
The operating principle involves activating/deactivating the fan coil speeds on the basis of
the difference between the fixed set-point and the detected temperature, using independent
1-bit communication objects to manage the individual speeds.
The figures below refer to the control of the speeds of a fan coil with three operating stages
for heating and air-conditioning. The charts show that each stage has a hysteresis cycle, and
each speed is associated with two thresholds that determine its activation and deactivation.
valve OFF
valve ON
1heat
2heat
3heat
set point
fan OFF
H
EATING
valve
3cond
valve
2cond
1cond
valve ON
valve OFF
fan OFF
set point
A
IR
-
CONDITIONING
Содержание Chorus GW 10 764
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