Nextteq Standard Airtec Regulator Kit - Manual (Page 20)

PACKING LIST SECTION II: Airtec Kit Components
20 NEXTTEQ LLC (Rev. 2) 4/09
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3.3 COMPRESSOR SYSTEMS
The Airtec Kit may also be used for monitoring compressed breathing air systems. See
Figure 3 (page 15). The Airtec System should be placed as close as possible to the
respirator hookup. The line pressure must be above 50 psig in order for the flow meter to
work properly. The test procedure is the same as that for bottled air outlined in Section
3.2 (page 18).
To use the Airtec System with a compressed air system, prepare an adapter as outlined
below in a or b.
a) In the sample line near the respirator hookup install a valve and a CGA 346
connection. The connection may be obtained from your local compressed gas
supplier. It is the type used on breathing air bottles.
b) Prepare a quick disconnect adapter in the following manner. Obtain a CGA 346
bottle connection from your local compressed gas supplier. Attach it in a leak-
tight manner to a quick disconnect fitting from one of your respirators. Your
Airtec System may now be connected directly into your respirator hookup.
Warnings
Take precautions against water entry into the regulator. Use line pressure to blow the connector
out prior to regulator hookup.
Be sure that the weight of the Airtec regulator/flow meter is properly supported during testing.
Be sure that the adapters are leak tight and capable of handling line pressure.
Federal Register 29 CFR Part 1910.134 (d) (2) (ii) states that breathing air systems employing
an oil-lubricated compressor must employ a carbon monoxide alarm, a high temperature alarm,
or both. The Airtec System does NOT substitute for a CO or a high temperature alarm. (If only a
high temperature alarm is used, frequent CO testing is required. The Airtec System is suitable
for such testing.)
Filtration systems utilized in purifying air from oil-lubricated compressors employ a
catalyst to convert CO to CO
2
. Note the following items:
a) The catalyst is ruined if contacted by water and will no longer be effective.
b) If CO levels increase sharply between tests, this could be an indication of CO
intrusion or production in the compressor.
Warning
Most CO intrusion into compressed breathing air systems is caused by a CO source near the
compressor inlet. Never operate motorized vehicles near the inlet of a breathing air compressor!
SECTION III: Testing Procedure