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What is the preffered instrument for detecting small leaks ?
Electronic leak detectors,One of the advantages of electronic leak detectors over other leak detection methods is higher sensitivity
What is an inert gas typically used in leak detection ?
To locate a leak on an empty system under the new EPA regulations,the system should be pressurized with an inert gas(
DRY NITROGEN
)
What is typically indicated by a dehydrated system failing to hold a vacum?
To pull a vacum the system is first pulled down to approximately 29in.Hg and valved off.Any leak within the evacuated appliance will cause
the system pressure to rise eventually reaching 0 psig.
Author
blackcat
ID
212704
Card Set
HVAC CORE EPA
Description
Hvac FlashCards
Updated
2013-04-13T01:08:42Z
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