Daikin ERAD 120E-SL, Инструкция по установке, эксплуатации и обслуживанию

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Unbalance %:
% _____ 100


x
V
V V
AVG
AVG MAX
AVG = Average
Example: the three phases measure respectively 383, 386 and 392 Volts, the average is:
383+386+392
=
387 Volts
3
thus the unbalance percentage is
% 29 , 1 100
387
387 392


x
below the maximum allowed (3%)
Electrical heater power supply
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 transmigration of refrigerant fluid within.
It is therefore necessary to ensure that the heaters are powered at least 24 hours before the planned startup 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 being started u p when the oil
temperature is not at least 5°C above the intake-pressure equivalent saturation temperature.
Keep the Q0, Q1 and Q12 switches in the Off (or 0) position until the machine is to be started up.