Nuvair Voyager IV, Руководство пользователя и по обслуживанию, Страница: 10 / 40

Voyager IV Nitrox System
Nuvair www.nuvair.com
Page
10
6.0 Low Pressure Compressor Technical Data
Capacity and Power Consumption:
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Normal working pressure – 90-175 psi (6-12 bar)
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Capacity at normal working pressure – 60 CFM (1700 L/min)
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Shaft power at normal working pressure – 20 hp (15 kW)
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Maximum working pressure – 175 psi (12 bar)
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Minimum working pressure – 44 psi (3 bar)
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Idling shaft power consumption – 4.8 hp (3.6 kW)
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Transmission – Belt drive
Cooling:
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Allowed ambient temperature – 32-104°F (0-40°C)
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Compressed air temperature above cooling medium temperature – 50°F (10°C)
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Cooling air flow – 1692 CFM (0.8 m³/s)
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Maximum cooling air pressure drop – 0.12 in H
2
O (30 Pa)
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Cooling air temperature rise – 57°F (14°C)
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Oil cooler heat rejection – (12.2 kW)
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Aftercooler heat rejection – (1.7 kW)
3-Phase Motor Class F ODP and Electrical Values:
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Motor - F class, 20 hp (15 kW)
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Speed of rotation - 2930 RPM @ 50 Hz / 3450 RPM @ 60 Hz
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Motor Amperage
o
208 V / 60 Hz = 61 amps
o
230 V / 50 Hz = 57 amps
o
400 V / 50 Hz = 34 amps
o
460 V / 60 Hz = 29 amps
General Technical Data:
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Oil Capacity 4 L
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Maximum Oil Content in Air– 3 mg/m
3
Rotary screw compressors are continuous duty rated. They are not made to run for short intervals
or sit without use for long periods of time. The rotary screw compressor must be run for a
minimum of one continuous hour per week in tropical settings to insure moisture does not build
up in the compressor. The oil filter and oil/air separator must be changed every 2000 hours or a
minimum of once per year. In tropical conditions the oil should be checked every month for
moisture by draining a small amount off the bottom of the compressor into a clear glass. If
moisture is found it can be drained off and a visual inspection should be done on all filters
checking for rust or corrosion.