5.2 Testing the Installation
1. Install the PREDATAIR with ventilation that seems reasonable
for the application. Use maximum ventilation for high duty cycle,
high ambient temperature applications. Somewhat less
ventilation may be acceptable for low duty cycle, low ambient
temperature applications.
2. Temporarily mount a thermometer 5 to 10 feet away from the
vehicle (this is ambient temperature, T
1
).
3. Temporarily mount a second thermometer (Figure 11) 2 inches
away from where the air will enter the cooler (T
2
).
2”
Thermometer - T2
Figure 11 – Analyzing temperatures
4. Install a 1/2 inch or greater ball valve in the outlet of the receiver
or use a test tool (Figure 12).
5. Drill an orifice in a plug and install it in the ball valve (see Table 3
for orifice sizes).
6. Fill the receiver with compressed air to a nominal 150 psi.
7. Open the ball valve fully and allow air to escape through the plug
with the drilled orifice.
8. Leave the ball valve fully open for the duration of the test.
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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