An insulated pipe being scanned for leakage. It is important that the insulating material
is not glued to the metal pipe and does not have any open gaps or tears.
The longer the tubing run between the
evaporator and condensing unit,
the greater the odds for defects.
Count on all possibilities whether it be a typical sight
glass-drier connection leak to a poor solder joint hidden under
pipe insulation.
1. The suction line can be screened by calibrating an
electronic to it's highest sensitivity.
2. Tuck the probe underneath the pipe insulation. Monitor
at ten minute intervals while the system is at rest and fully
pressurized to equalization. It may be necessary to insert the
probe at several downstream points.
An insulated pipe being scanned for
leakage. It is important that the insulating material
is not glued to the metal pipe and does not have any open gaps or
tears.
3. If a leak is sensed, strip off
insulation and apply BIG BLU to all pipe surfaces. If no leak was
positively screened, test liquid line.
4. The liquid line almost always has oil residue as the
result of leakage. Coat all suspected liquid line connections
with BIG BLU allowing sufficient time (10-15 minutes) for
micro-foam expansion.
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