Lync AEGIS
5: ELECTRIC CONNECTIONS
L-OMM-012_A
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4/20/2022
Technical Support • (800) 433-5654 • Mon-Fri, 8 am - 5 pm EST
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5.
ELECTRIC CONNECTIONS
5.1. Overview
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The electrical connections must comply with the information shown on the wiring diagram
attached to the unit and the regulations in force in the place of installation.
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The installer must connect the grounding cable using the relevant PE clamp on the earth
bar situated in the electric control board.
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Verify that the power supply voltage corresponds to the nominal data of the unit (voltage,
number of phases, frequency) stated on the plate on the machine.
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The power supply voltage must not undergo variations over ±5% and the unbalance
between the phases must always be less than 2%.
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Check that the line is connected with the correct phase sequence.
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To feed in the electrical cables, use the phase sequence. The power cord is fed through
the bottom part of the electric control board.
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The control circuit power supply derives from the power line via a transformer situated in
the electric control board. The control circuit is protected by relevant fuses.
I M P O R T A N T
Use power cable fixing systems that resist abrasion and twisting stress.
Make sure there is no voltage present before performing any operation on electric parts.
The section of the cable and the line protections must comply with that indicated in the wiring
diagram and the relevant table attached to the unit.
The resistances must be powered at least 12 hours before the initial startup during cold
weather conditions to allow the compressor oil to come up to temperature, and takes place
automatically when the master switch is closed. In warmer conditions this time may be
shorter.
The unit must operate with those limits; failure to do so will immediately void the warranty.
5.2. Fan Speed Controller
The unit comes equipped standard with a fan speed control device. This enables the unit to
operate at elevated ambient air temperatures by reducing the air flow rate to the evaporator and
remain within the operating envelope.
This device can also be used to reduce the sound emissions of the unit when the external air
temperature tends to decrease (e.g. during the night).
This control is calibrated and inspected in the factory.
If further fan speed control is required, or higher pressures are required for ducting the unit
exhaust, electrically commutated (EC) fans are available as a factory option.
W A R N I N G
Do not modify speed control calibrations. If this is required, please contact the manufacturer.
