Vmac PREDATAIR60 - Page 32

VMAC – Vehicle Mounted Air Compressors
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32
T
max
Duty Cycle
1 Speed 2 Speed
10%
150°F (66°C) 160°F (71°C)
20%
143°F (62°C) 151°F (66°C)
30%
135°F (57°C)` 142°F (61°C)
40%
128°F (53°C) 133°F (56°C)
50%
121°F (49°C) 124°F (51°C)
60%
114°F (46°C) 115°F (46°C)
70%
107°F (42°C) 107°F (42°C)
80%
99°F (37°C) 99°F (37°C)
90%
89°F (32°C) 89°F (32°C)
100%
85°F (29°C) 85°F (29°C)
Table 4 – Determining Temperature T
MAX
Table 5 shows a sample analysis using Form 3.
Measures for correcting inadequate ventilation include:
• reduce GPM and repeat the test
• improve ventilation or install an electric circulation fan to
• promote exchange of enclosure air with ambient air and
• repeat the test
• place a sticker near the compressor switch stating: “Reduce
• compressed air usage when outside air temperature is
• greater than x°F (y°C). For example 85°F (29°C) from the
example analysis.