OUTDOOR UNITS
TC-16001-rev.5
2-25
(2) P2: High Pressure Increase Protection Control
High Pressure Protection Control is performed in order to prevent activation of a protection device
caused by a high pressure increase during an abnormality and to protect the compressor from an
excessive increase of discharge pressure.
< Details of Control >
Pd: Detected Value of High Pressure Sensor [psi (MPa)]
(3) P3: Inverter Current Protection Control
Inverter Current Protection Control is performed in order to prevent an inverter trip caused by an
increase of inverter secondary current value.
< Details of Control >
Iinv: Detected Value of Inverter Secondary Current Sensor [A]
< 1Ph 208/230V >
Model I1 I2 I3 I4 I5
(H,Y,C)VAHP036~060B21S 20.0 19.0 21.5 20.5 22.5
Normal Operation
Frequency Forced Decrease
(2.0Hz/sec.)
Prohibition of Frequency Increase
(Except Frequency Decrease Only)
Iinv > I1 (A)
Abnormal Stoppage
(Stoppage Cause d1-17)
Iinv > I3 (A)
Iinv < I4 (A)
Iinv < I2 (A)
Iinv > I5 (A)
for 30 sec.
Pd > 508psi (3.50MPa) Pd < 479psi (3.30MPa)
Pd > 515psi (3.55MPa) Pd < 508psi (3.50MPa)
Pd > 551psi (3.80MPa) for 2 sec.
Normal Operation
Frequency Forced Decrease
(1.5Hz/sec.)
Prohibition of Frequency Increase
(Except Frequency Decrease Only)
Abnormal Stoppage
(Stoppage Cause d1-13)
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