Power Supply Of Electrical Heaters - Daikin EWYD-BZ Series Installation, Maintenance & Operation Manual

thus the unbalance percentage is

392 387

x 100 , 1 29 % below the maximum allowed (3%)
387

Power supply of electrical heaters

Each compressor comes with an electrical heater located at the bottom of the compressor. Its purpose is to warm up the
lubricating oil and thus avoid the mixing of refrigerant fluid within.
It is therefore necessary to ensure that the heaters are powered at least 24 hours before the planned start-up time. To
ensure that they are activated, it is sufficient to keep the machine on by closing the general disconnecting switch Q10.
The microprocessor, however, has a series of sensors that prevent the compressor from being started up when the oil
temperature is not at least 5°C above the saturation temperature corresponding to the current pressure.
Keep the Q0, Q1, Q2, Q3 and Q12 switches in the Off (or 0) position until the machine is to be started up.
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