Uniflair Amico Installation Manual
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Contents
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23MANUAL START UP AND SHUT DOWN OFTHE UNITWARNING! Check that the refrigerant circuit hasbeen filled.To start the unit proceed as follows:• access the electrical panel;• position the automatic switch of the auxiliary circuits to“l” (on);• position the automatic switches to “l” (on);• supply power to the unit by positioning the isolator switchD5 to “I”;• In units with a mains voltage of 400V/3N/50Hz, checkthat both the LED phase sequences RSF (D8) areswitched on; the green LED indicates the presence ofvoltage, the yellow LED indicates that the phasesequence is correct, in the event of phase sequenceerror invert 2 of the 3 supply voltages following theinstructions indicated in the paragraph “Electricalconnections” and resume the start-up procedure;D8L1 L2LEDLEDL312 14 11WARNING! During prolonged breaks aspontaneous migration of the refrigerant mayoccur in the casing of the compressor, which maycause foaming of the oil and consequent damageby the lack of lubrification. It is recommendedthat the main switch is not turned off duringweekly breaks.• wait at least 12 hours before start up so that the oil inthe compressors warms up sufficiently;• open the shut off valves of the refrigerating circuits;• check that the remote condensers are powered (on aircooled models);• check that the external dry coolers are powered andcheck the presence of the water flow for condensation(on water cooled models);• check that the tracts of siphoned corrugated pipe, bothinternal and external to the conditioner, have been filledwith water in the installation phase;• close the front panel;• wait for the oil in the compressors to heat (12 hours forcompressors equipped with heaters);• press the ENTER key (A6) of the user terminal; a slidingbar and a ventilator icon will appear on the display;• if an alarm is indicated, consult the user interface manualmP40;A2A4A5A6A7A1A3G 12DD7B/DD5OFFTo shut down the unit carry out the following procedure:WARNING! During prolonged breaks aspontaneous migration of the refrigerant mayoccur in the casing of the compressor, which maycause foaming of the oil and consequent damagebecause of the lack of lubrification. It isrecommended that the main switch is not turnedoff during weekly breaks.• on the first screen of the user terminal, press keys A5or A7 until the SWITCH OFF UNIT screen appears;• press the ENTER key to confirm;• the following icons will appearpress the ENTER to confirm. |
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