Document 5YB6K03gGn6doK0yoZvpkv50
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''October 8, 1968
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Mr, Ray Gingle Burny Bro3. -- 300 \U North Avenue Northlake, Illinois
Lear Hr, Gingle:
60164
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7 * ^Regarding my. visit last week to review the doughnut fryer
/ "7- installation, I would recommend that the following measures
- '.be taken to prevent re occurence of fluid degradation:
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1,. Have the system cleaned out completely by a company
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..similar to Dow Industrial Service, Chicago Heights.
' 72 do not believe that a simple flushing with tri- .
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: - chi oroe thylane will remove the contaminants'.
2.:'After replacenc-nt of the expansion tank vent piping,
. . 2 would suggest that an air* dryer be installed to
7 prevent the entry of moisture an the system "breaths".
Air dryers are available from the following companies:
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.. \ - ' ; Me Intire'
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.. . . , . 22 Akner Farkv;ay ' . 1
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-. 'Livingston, New Jersey . '
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C, lil Kemp Manufacturing Co
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7 ' '7 . 7 . Glen Burnic, Maryland 21C61 \
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7 ,-7.:7 Lsctro Dryer Division1 / 7 77
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' '* . ' v;Yv McGraw-Ldiccn Ccssoany, ' .
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7? 7 . P. 0, Box 1766 ' *
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Pittsburgh, Pennsylvania 15230
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\ 7 3* Insist that the maximum heat release control on the
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Vapor heater not be readjusted to bring the system up
. to temperature faster. ; ,
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dSVM 434954
STLCOPCB4088014
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' During our visit it-was foiind that the maximum heat /
/' i ; release control was defective as on one occasion the
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burner released to'-high fire at ambient temperature,
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r. : Kelcase to high fire with fluid at room temperature can 1
s result in overheating" and the formation of hydrogen
/ . . ' chloride gas. . In the presence .of moisture this will form
/ " . an acid and 'will attack the expansion tank and vent piping.
.A new control was installed and set to keep the burner
, at low fire until the fluid reaches 190J?. This should
. prevent the overheating of the fluid, and with the
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elimination of moisture by'the air dryer you should have
trouble free operation.
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, Should you have any questions, do not hesitate to
contact me
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Very truly yours. /
r
James J. Seder .
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Heat Transfer Specialist
Tnerninol *
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v J Mr. Henry Hartley , '
DCA .
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Ellicott City, dryland 210^3
\ DSW 434955
STLCOPCB4088015