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Category: Daikin

Daikin

Daikin VRV – Actuation of HPS in Heating Operation

Posted on July 19, 2021 by Jack
Daikin

Daikin VRV – Actuation of Freeze-up Prevention Control of Indoor Unit Malfunction Tree Analysis

Posted on July 19, 2021 by Jack
Daikin

Daikin VRV – Verification of D-III NET Transmission Waveform

Posted on July 19, 2021 by Jack

When the waveform as shown below appears in measuring of transmission waveform, transmission malfunction may probably be caused. Above abnormal waveforms are generated due to…

Daikin

Daikin VRV – Check on Outdoor Fan Motor

Posted on July 19, 2021July 19, 2021 by Jack

Check 1 Check on connector of fan motor (power supply cable) (1) Turn OFF the power supply. Check on resistance balance and short-circuiting between phases…

Daikin

Daikin VRV – Structure and Operation of Two-way Solenoid Valve

Posted on July 19, 2021 by Jack

In heating operation, when each standard speed outdoor unit does not operate, the two-way solenoid valve stops each gas pipe. This valve is external equalizing…

Daikin

Daikin VRV – Structure and Operation of Solenoid Valve

Posted on June 9, 2021 by Jack

Liquid Injection In order to prevent overheating operation of compressor, refrigerant is injected to compressor suction port from liquid line reducing pressure through capillary tube.…

Daikin

Daikin VRV – Structure and Movements of Four-way Valve

Posted on June 9, 2021 by Jack

Four way valve is a representative valve which is used for heat pump type air conditioner. This valve functions to selection flow direction of superheated…

Daikin

Daikin VRV – Structure and Operation of Electronic Expansion Valve

Posted on June 8, 2021June 8, 2021 by Jack

For VRV system, EBM type linear control valve is employed to use as an electronic expansion valve for superheated degree control or subcooled degree control.…

Daikin

Daikin VRV – Pressure Sensor

Posted on June 8, 2021June 8, 2021 by Jack

Voltage Measuring Point When the color of harness is not as mentioned above, find the measuring point by following procedure. 1. Black is GND. 2.…

Daikin

Daikin VRV – Thermistor Temperature · Resistance Characteristic

Posted on June 8, 2021June 8, 2021 by Jack

Unit: k? Thermisitor Temperature °C A B C D –10 112.0 — — 48.48 –8 100.4 — — 43.92 –6 90.2 88.0 866.8 39.84 –4…

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