Daikin VRV Inverter K Series Manual page 141

SI-05C.BOOK Page 127 Monday, November 6, 2000 4:13 PM
SiE-05C
∗20 PI control
∗21 Discharge temperature protection
∗22 Fan control during low temperature protection
∗23 Compressor protection
∗24 PI control
Troubleshooting Inverter K Series
Controls ON/OFF of the standard compressor and inverter output frequency so that suction
pressure is the optimal value.
If Tc is less than 26.1˚C for 30 continuous seconds, fan speed changes as follows: H + ON / H +
OFF / L + OFF. When Tc becomes greater than 52.4˚C, fan speed returns to H + ON.
1. Protection control is triggered when secondary inverter current exceeds set current.
2. Protection control is triggered by discharge temperature.
3. Protection control is triggered when the heating load is small and the saturation temperature
corresponding to suction pressure is high.
4. Protection control is triggered when saturation temperature corresponding to suction pressure is low.
Controls ON/OFF of the standard compressor and inverter output frequency so that discharge pressure is
the optimal value.
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Operation Flowcharts
127