EPSILON-CF IOM.pdf - Industrial Air

7. START-UP
7.1 PRELIMINARY CHECKS
– Check that the electrical connections have been made correctly, and that all terminals are well tightened.
– Check that the voltage on the RST terminals is 400 V ± 5% (or the unit’s rated value, in the event of units
supplied to run on non-standard power supplies). If the mains voltage is subject to frequent fluctuations,
consult our Engineering Department to discuss the necessary protection systems.
– Check that the display shows the gas pressure in the refrigerant circuit.
– Inspect the unit for refrigerant leaks using a leak detector if necessary.
– Check that the crankcase heaters are correctly supplied with power.
Significant leakage of R407C refrigerant in the gaseous state will
alter the percentages of the remaining mixture with consequent
fall-off of performance.
The heaters must be connected at least 12 hours before starting
the unit; the heaters are automatically connected when the main
disconnect switch is set to the ON position.
– Verify that heaters are working correctly: after the warm up period the crankcase must be warm to the touch
and must have at least a temperature 10 - 15 °C higher than ambient temperature.
– Check that all hydraulic connections are correctly installed and all indications on unit labels are observed.
– Check that the hydraulic system has been vent to eliminate any air remaining; charge it gradually and open
the vent devices on the upper part, provided at the care of the installer together with an expansion tank of
a proper size.
Warning: before starting up the unit check that all the closing panels
are in position and secured with the relative screws.
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