Daikin E-Series Service Manual page 74

SiENBE18-621
ΔD Control
Receiving the capacity request signal from the indoor unit, the outdoor unit corrects its target
pressure for capacity control.
Controls ΔD signal from indoor unit as follows.
UP control :
Down control: When the down command come from all indoor units among thermostat-ON
Keep control: Except for the above
About detail of ΔD signal, refer to P80
Cooling Operation
TeS = TeS initial value + KTe2
KTe2 : Correction value by ΔD signal in cooling.
Function
When the UP command come from more than one indoor unit among
thermostat-ON indoor units.
indoor units.
During compressor frequency PI
control (KTe2 = 0)
Δ D control
□
KTe2 = KTe2 0.5
Up control by Δ D signal
continues 120 sec.
KTe2 = 0
(without correction)
Not during compressor frequency PI
control
Keep the current KTe2
Down control by Δ D signal
continues 120 sec.
Basic Control
KTe2 = KTe2 + 0.5
(Q0396)
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