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Old 07-02-2013, 06:31 PM   #16
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Identifying proper rotation of squirrel cage wheel


NASA?

always wanted to see the equipment in mines and mills and we have lots up North here and in Ontario etc. Friend of mine was in Thompson/ INCO but I did not get up there in time.

Had a 200 hp 3 ph motor with Star Delta starter on a blower for a office tower. wheel was 10 ft in diameter and had 20 ft long belts. scared the heck out of yah when that starter was not setup properly. and a 1000 ton centrivac chiller. lots of interesting stuff mankind has invented.

the good ole days, strong like bull, removed lots of boilers, oil tanks, cast iron heat exchangers from oil furnaces in war time homes. now I just use the ole brain instead.

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Old 07-02-2013, 06:35 PM   #17
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Identifying proper rotation of squirrel cage wheel


Justplum...thanks for suggesting I look closer.....I saw the first animation...in the link and stopped there...but when you read down further....you find the description of the 3 types...

Learn something every day...

I stand corrected............

And Yuri...not NASA....that is the tool for the Boeing 787 front fuselage...

That autoclave is 30' in dia....the door weighs about 40 tons...
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Old 07-02-2013, 07:26 PM   #18
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Identifying proper rotation of squirrel cage wheel


if the filter gets saturated the squirrel is next then the coil...major bucks and forget the operation it is shot all of these dirt catches cause icing..right out to the compressor....
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Old 07-02-2013, 07:43 PM   #19
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Identifying proper rotation of squirrel cage wheel


Luv those pics ddawg, yepper.

Thx biggles- is that a residential blower wheel? If so, do you know how long it took to get that way?
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Old 07-03-2013, 09:13 AM   #20
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Identifying proper rotation of squirrel cage wheel


that could be a year or so with pets and carpets in the house the coil was packed above the fan section ....large tonnage residential unit.the real kick in the buuutt... is if the A coil is dripping water right on top of a heat exchanger with a furnace and A coil system air handler.that heat EX will rot out in one summer season,and leak carbon monox into the space in the winter...

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Old 07-03-2013, 11:24 AM   #21
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Identifying proper rotation of squirrel cage wheel


Sounds like a very expensive (not to mention dangerous) kick in the butt! Thx for that tip (and pic).

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Old 07-04-2013, 08:01 AM   #22
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Identifying proper rotation of squirrel cage wheel


I have reinstalled a few cages backwards in my time and they still blow air, just not as much. After a couple of times you make a better effort to pay attention to what you are doing.

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