 |
| OEM's and field
installers should always conduct a PDL test before charging a system with refrigerant. Nitrogen pressurization to 300 psi reveals a cracked receiver seam indicated by white micro foam. |
|
|
| OEM's and field
installers should always conduct a PDL test before charging a system with refrigerant. Nitrogen pressurization to 300 psi reveals a cracked receiver seam indicated by white micro foam. |
We are all intuitively equipped with basic leak
detection tools. With our ears we can hear large leaks.
With our nose, we can smell certain gases.
With our fingers, we can feel for oil residue which surrounds
many leaks sites.
But the best leak confirmation comes by sight. The verification
of a leak by watching
bubbles or foam actively brew at the point of leakage.
This manual describes a systematic method of search using common
leak detection tools.
 |
(1) An electronic halogen
instrument having a sensitivity of at least 0.50 oz./yr. (2) Our BIG BLU Bubble/Foam Promoter. (3) An inspection mirror. (4) A light source. The electronic sensor shall be used as a screening tool to "sniff" which component is emitting gas. BIG BLU will be used to spray coat ALL surfaces of the target component. We shall then observe for any bubble/foam emissions, using when necessary, an inspection mirror to view blind sides and a light source for illuminating dark areas. |
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