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XI. SPECIAL EDITION ON MAINTENANCE OF ENVIRONMENTAL PROTECTION
REFRIGERATOR
11.1 SYNOPSIS
Freon is a usable scientific substance being used
in the freezing system and heat-insulating material
of refrigerator, which is inflammable completely
without direct harm to human body. Despite its
contribution to modern civilization, however the part
being used in the cleanser, aerosol spray, and
refrigerator will destroy the ozone layer. Till the end
of 1995, the production of such kind of freon was
suspended and then it was replaced by the one
which brings lesser influence to the ozone layer.
11.2 FEATURES AND CAUTIONS OF HFC-
134A SYSTEM
11.2.1
Cautions for changing freon (CFC-
12R
→
→
→
→
→
HFC-134a)
i.
It is absolutely banned to use the freon
containing flurochloromethane (freon),
including the use for cleaning.
ii.
HFC-134a cannot be used together with
the dryer using CFC-12. Instead, it must
be exclusively used (by changing to
smaller freon particles, the drying agent
will be different).
iii. It cannot be used together with the
existing leakage detector (CFC-12,
CFC-22) (because the original leakage
detector was operated by using
flurochloromethane (freon) to detect, but
not the case with HFC-134a)
iv.
Repairing tools exclusively for HFC-
134a must be used.
In the existing tools, rubber material
(sealing material) tends to expand with
the result of weaker tension. Please use
the special tool based on the
instructions (changes existed with the
rubber sealing material).
Summary of Contents for PTV15SAMR
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