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AlThumbs

07:55AM | 11/21/05
Member Since: 09/06/05
5 lifetime posts
Bvelectrical
I have a Dayton Split Phase Fan/Blower Motor that keeps shutting down because of heat from an outside source.

Anybody know what steps I need to take to disconnect the thermal protection?


Billhart

03:42AM | 11/22/05
Member Since: 04/25/05
1915 lifetime posts
The problem is that the motor and insulation is getting too hot.

It does not matter to the insulation WHY it is getting too hot.

I dont' know any of the details, but it sounds like you need to modify the "system" to remove the heat or to move the motor away from the heat. Or get a motor rated for the application.


AlThumbs

07:54AM | 11/22/05
Member Since: 09/06/05
5 lifetime posts
Thanks for your response.

The real problem is as follows. This fall I added an outdoor wood furnance water-to-air heat exchanger to my existing forced air oil furnance system.

Unfortunately, the plenum of my existing furnace is too small to accomodate the heat exchanger of my wood furnance add-on.

I was told of similiar applications where this problem was solved by putting the heat exchanger in the cold air return.

Not the ideal solution, but one that had worked for others.

So my blower is now pulling warm air through it and pushing this air on into the plenum for distribution through the house. It works okay for short runs, but if it is required to run continuously for an hour or so; the exterior heat causes the blower motor to shut down.

I have looked for a blower motor with the same installation characteristics but a higher thermal rating; but was unable to find one.

Now I am looking for alternative solutions. One of which is too "disconnect the thermal protection" since the heat is not being caused by ampherage of the motor, but by an outside source. Again not an ideal solution, but where trying to work with what we got.

Revising the plenum at this stage is not an option, so I am looking for reasonable alternatives that can keep me burning wood this winter while I consider my options for next year - during the summer.

Any ideas out there would be greatly appreciated!

Thanks
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