It concerns me that a device such as this would have its safety dependent on
lubrication. One would expect that it may be infrequently serviced as a
result of being in an attic. Additionally, thermal cutouts for these
applications should be not be designed to allow them to be defeated.
-----Original Message-----
From: Lacey,Scott [mailto:[email protected]]
Sent: Thursday, March 30, 2000 11:48 AM
To: '[email protected]'
Cc: '[email protected]'
Subject: RE: Fires from Electric Fans
Mr. Wiederhold,
About a year and a half ago, I installed a whole-house fan
for a relative.
The unit was clearly labeled "inspect and lubricate
annually". In addition,
there was a warning marked on the motor end bell about not
attempting to
defeat the thermal cutout . Most locked rotor situations
with fans occur
from a lubrication failure. I have actually seen people try
to wedge the
thermal cutout reset button to prevent operation while
troubleshooting. Not
a safe practice at all.
Scott Lacey
Test engineer
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