JUN-AIR JAir Dental Compressed Air System User Manual

Page 13

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JUN-AIR Dental Compressed Air System User Guide

CI-101A (Rev B)

SYSTEM CHECKS AND TESTS

Make sure everything is connected properly .
1 . Check that the intake filter(s) and tubing are fully

seated into the hose barb fittings and the air
outlet shut-off valve is closed .

2 . Turn power on .

The compressor system should run and the storage
tank will begin to pressurize .

NOTE: Access to the compressor ON/OFF
switches is achieved by removing the electrical
cover .

WARNING: Always turn off compressor
and remove power when removing
electrical cover.

3 . Check the incoming line voltage . It should be a

minimum of 208 volts and should not exceed
253 volts . This voltage should remain within
this range while compressor system is running .
If voltage does not remain within the specified
range, install an appropriate buck-boost
transformer and check to make sure the correct
main circuit breaker and wire size gauge are
being used .

NOTES
• Compressor system will shut-off automatically

when gauge registers approximately 100 PSI .

• Monitor system pressure gauge when testing for

leaks .

• You may use soapy water to check for any

pressure leaks .

• Contact authorized dealer technical service for

recommended buck-boost transformer if voltage
is outside of limits .

4 . Open the air outlet valve slowly and allow air to

flow into the operatory air system .

5 . Allow office line to pressurize until the system

shuts off . Check system pressure gauge
reading .

NOTE: When the system shuts off, the solenoid
valve attached to the coalescing filter will purge the
air from the system along with any moisture and
foreign material in the filter bowl .

6 . Check gauge reading after 20 minutes .

NOTE: If the system pressure gauge drops more
than 5 psi, an air leak exists. Locate the leak(s) and
repair .

System Size

Number of
compressors

Pump-up time 0 psi to
100 psi (seconds)

Recovery time 80 psi to
100 psi (seconds)

JAir 3

less than 160

less than 50

JAir 5

less than 110

less than 30

JAir 7

less than 160

less than 50

NOTE: If external intake filters are used recovery and pump-up times may vary.

Equipment Alert: Verify all leaks are sealed.
Air leaks are main cause of premature
compressor failures.

WARNING: The ON/OFF compressor switches
control only the second circuit power. The
main power source must be turned off to
remove all the power in the control box. The
circuit breaker panel is the main power
disconnect.