5.3 Analyzing the Test Results
Copy and use Form 3 for the analysis.
T1 = ________ Current ambient temperature (Average from Form 1)
T2 = ________ Cooler intake temperature (Average from Form 1)
T3 = ________ Maximum expected ambient temperature that the truck will
see
Duty Cycle = _______% See Section 5.1
No. of speeds: 1 or 2 (Circle one)
Tmax = _______ See Table 4
Tx = T3+T2-T1 The expected cooler intake temperature at maximum
ambient temperature
Tx = ___+___-___ = _____
Tmax = _____ & Tx = ______ If Tmax is greater than or equal to Tx,
the ventilation is OK. If Tmax is less than Tx, more ventilation is required,
or the duty cycle must be reduced when the ambient air temperature is
greater than:
T3-(Tx-Tmax) = ____ - (____ - ____) = _____
Conclusion:
Form 3 – Ventilation Analysis
VMAC – Vehicle Mounted Air Compressors
Toll Free:
1-888-241-2289 Local: 1-250-740-3200
Fax: 1-250-740-3201
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