GE TBG440ANDR, Техническое руководство по обслуживанию

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Page 31
VIII. MAINTENANCE OF ENVIRONMENTAL PROTECTION REFRIGERATOR
8.1 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.
8.2 FEATURES AND CAUTIONS OF HFC-
134A SYSTEM
8.2.1 Cautions for Changing Freon (CFC-12
→ → → → →
HFC-134a)
i. It is absolutely banned to use the
freon containing flurochloromethane
(freon), including the use of 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 parties,
the drying agent will be different).
iii. If 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).