Refrigerator 3:00 refers to the normal operation of thermal
electric refrigerator (the back condenser) cooling network for the
purposes of the various parts of normal temperature, that is the
hottest in the upper part of the condenser, its temperature should
be 55-60 around the middle part of the condenser temperature is 45
degrees, but in the bottom should be close to room temperature can
be slightly higher in the maintenance within the community
fluoridation for just after the refrigerator is usually based on
these three points are high or low temperature heat to to determine
the number by adding the amount of fluorine gas.
How to solve the internal leakage of the refrigerator, why it is
difficult to fix it?
Refrigeration internal leakage at less than (their performance in
the first part of the fault has been described), for general
maintenance must first identify the leakage point, which is often
the most troublesome. For example: fluoride mouth leak (rarely),
the door seal leaking pipes except Lu (a lot), evaporator (ie
freezers) to wear or corrosion microporous (many), but also because
the refrigerator is not within the cooling pipe are in the external
exposure, so we can observe only the outside exposure of this small
part buried in the little house on a good solution. As in the past
are "on the back of big cut" operation, but now the high cost of
repairs, and no one to do so. The currently used simple easy
maintenance methods, such as changing evaporator, or in cabinets
row of tubes.
What is pressure? What gas to fight? Inner leakage always where how
to do?
Refrigerator leak inside the general needs of the system pressure
within the observation, in principle, to use nitrogen gas pressure
for (because of dry nitrogen-free water) other oxygen, and air all
have water, (water access, and refrigerators fluorine refrigerant
within the system agent mixture can reduce the insulation,
corrosion of piping systems, but now the door where there is any
fix nitrogen ah? generally with another into the air compressor,
pressure, piping material depending on the size of copper,
aluminum, alloy, usually 12 -16 a pressure, (principle requires
packing a 24-hour) re-use of listening, watching, wiping Feizao Mo
observation, and so on. As the door closed a lot of bending the
pipeline is the most frequent bending point of corrosion and
leakage, so When found, the regular maintenance staff simply remove
the "gate closed except exposed pipe" this part of the further
suppression and observation.
If the evaporator (ie, freezing room) need to be replaced within a
drain on the evaporator, but also in the freezer room within the
semi-circular brass plate on behalf of the road, you can also buy
the whole "aluminum composite plate evaporator" Xiang into the
original frozen interior.
Refrigerators with refrigerant cost? The number of injection
quantity? Toxic do? Explosion do?
Refrigerator is generally within the refrigerant R12 and its
mixture with the other family R134, are generally injected as a
range of about 150-200 grams.
Refrigerant R12, etc. about 20 yuan a kilogram (which can be
irrigated five refrigerators use).
* * There is also a refrigerant known as "R600" (the so-called pure
green refrigerants). And R12 (R12 non-combustible non-explosive)
are completely different!
