Fujitsu VRF Air Conditioners - Operation / Reliability

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Outdoor unit operates over an outdoor temperature range of 52°C to -5°C for cooling and 21°C to -15°C for heating.

Oil Control

Automatically returns the lubricating oil to the compressor so that there is no lack of oil in the compressor.

• Periodically returns the oil separated by the oil separator to the compressor
• Periodically recovers the oil that flowed into the piping and indoor unit to the compressor

Anti-freeze Function (selectable mode)

When the indoor temperature drops, heating operation starts automatically to prevent freezing of water pipes and other parts. When the indoor temperature falls to 5°C, heating operation starts automatically and when the indoor temperature reaches 8°C, heating operation stops automatically. This operation is repeated to prevent freezing.

Recovery Operation

 
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