VIAIR 444C Dual - Manual (Page 5)

COMPRESSOR APPLICATION GUIDE
To ensure that you get the highest level of satisfaction from your compressor’s performance, refer to
information below:
VIAIR COMPRESSOR REFERENCE CHART
COMPRESSOR SERIES DUTY CYCLE WORKING PRESSURE
100 SERIES 15% 130 PSI
200 SERIES 20% 150 PSI
215 SERIES 17% 150 PSI
225 SERIES 20% 150 PSI
265 SERIES 22% 150 PSI
275 SERIES 25% 150 PSI
280 SERIES 30% 150 PSI
325 SERIES 33% 150 PSI
350 SERIES 100% 150 PSI
380 SERIES 100% 200 PSI
400 SERIES 33% 150 PSI
450 SERIES 100% 150 PSI
480 SERIES 100% 200 PSI
490 SERIES 40% 150 PSI
490 SERIES 100% 175 PSI
ABOUT COMPRESSOR DUTY CYCLE:
Compressor Duty Cycle refers to amount of time a compressor can be operated in a given time
period, at 100 PSI and at a standard ambient temperature of 72°F.
Duty Cycle is commonly expressed in percentile as:
Compressor on Time/ (Compressor on Time + Off Time) %
As an example, a compressor that is rated for 25% duty cycle means that compressor can be
operated at:
100 PSI @ 72°F for 10 Minutes ON and 30 Minutes OFF
10 Min. On / (10 Min. On + 30 Min. Off) = 10 Min. / 40 Min.
=25% Duty Cycle
DUTY CYCLE REFERENCE CHART
DUTY CYCLE @100PSI / 72°F MINUTES ON / OFF
15% 6 Min. On / 34 Min. Off
20% 8 Min. On / 32 Min. Off
25% 10 Min. On / 30 Min. Off
30% 13 Min. On / 30 Min. Off
33% 15 Min. On / 30 Min. Off
100% Continuous Duty
ABOUT RATED WORKING PRESSURE:
To ensure trouble free service life of your compressor, always operate compressor within rated
working pressure of the compressor. Never use a pressure switch with a higher cut-off pressure
than compressor’s rated working pressure.
USER MANUAL
444C DUAL PERFORMANCE VALUE PACK