Control
C - 4
3
4
5
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0
o
C3
o
C
ON
OFF
Thermostat signal
Controls the closing of the electronic valve, in order to make sure that it is not fully closed.
Initial step control
Control determined by ∆T
∆T control
Outlet temperature control
Minimum step control
When the thermostat is turned ON, for one minute it is fixed at 120 steps.
Set to 1-10 steps by fuzzy control depending upon the temperature difference
between the indoor intake and the outlet coil.
Proportional control depending upon the temperature difference
between the setting value and actual value of the indoor intake and outlet coil.
The electronic valve is adjusted when the intake temperature is near the setting
temperature, so that the outlet temperature is controlled to be as near as possible to
the target outflow temperature.
1. Operation control
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