Compressor application guide – VIAIR 444C Dual User Manual

Page 5

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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

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