PURPOSE
OF BLOG -
As
technicians that work on a highly sophisticated and complex
compressor, in the opinion of this blogger, we are severely
handicapped by the lack of really in depth information in the area
of determining causes of failures and indicators of potential
failures.
The
Danfoss Turbocor training course is aimed at how to locate, isolate
and repair a compressor failure. The Turbocor OEM manufacturer´s
training courses (such as Multistck, Smardt and Arctic) essentially
copy the Danfoss Turbocor training course (in fact, they use many of
the same visuals) with added information regarding each
manufacturer´s chiller control.
There
are two very important areas not addressed by any of these training
courses.
First
of all, and most important, any time there is a compressor failure,
all possible efforts must be made to determine why the failure
occurred. This is absolutely critical to prevent repeat failures.
These efforts include detailed review of the chiller controller
historical logs as well as the faults and events logs from the
compressor itself. I personally know of various installations with
multiple compressor failures where the cause of the failures has
never been addressed.
Secondly,
any time we have contractual responsibility for maintenance on a
chiller, we, as the responsible technicians, must continually review
the operation of the chiller using the same information indicated
above, looking for potential causes of future failures. This is
extremely important to protect the client against a potential
compressor failure.
In
my experience, the application engineers and technical support people
from Danfoss Turbocor and the various OEM manufacturers have
extensive levels of experience and are good reference sources.
However, they typically have a great deal of priorities occupying
their time and it is difficult to get real time help when you are in
the field working on a unit and need assistance. Added to this is
the fact that the most experienced engineers are the Danfoss Turbocor
application engineers and they are not directly available to the
technicians/ engineers working directly with the units. They are
only available to the application engineers of the OEMs.
The
information we need to properly support the Tubocor Compressor based
chillers in the field is only available through experience. There is
no reference manual that contains this information.
The
purpose of this blog is to begin to record this body of experience in
a manner that it is readily available directly to personnel working
directly with the Turbocor technology.
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