Infrico EVV Series, Руководство по обслуживанию и установке

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2.- Air or other non-condensable gases in system.
3.- Clogged condenser (air-cooled)
4.- Defective condenser fan motor.
5.- Unit location too hot.
6.- Restriction in expansion valve, strainer or drier.
7.- Discharge valve partially closed.
8.- Restriction in discharge line.
Compressor short cycles
1.- Control differential set too close.
2.- Refrigerant undercharge, check pressure control.
3.- Refrigerant overcharge.
4.- Discharge valve leaking.
5.- Cutting out on high pressure control, if used.
6.- Cutting out on overload protector because if tight bearings struck
piston, high head pressure or restricted air-cooled condenser.
Running cycles too long, or unit
operates continuously
1.- Insufficient refrigerant charge.
2.- Dirty or restricted condenser.
3.- Unit location too hot.
4.- Control contacts stuck.
5.- Air or other non-condensable gases in system.
6.- Expansion valve plugged or defective.
7.- Fixture doors left open too long.
8.- Insufficient, defective or water-logged insulation.
9.- Evaporated oil logged.
Noisy unit
1.- Compressor oil charge low.
2.- Fan cable on condenser or evaporator bent causing vibrations.
3.- Bearing on evaporator or condenser motors lose or worn.
4.- Tube rattles.
5.- Lose parts on condensing unit.
6.- Case is not level.
Distinguished customer, we inform you of the rules on management of guarantees granted
by our company to your products:
13 WARRANTY MANAGEMENT