Kitchen Exhaust Fan on Roof - Coach 1482 - Printable Version

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+--- Thread: Kitchen Exhaust Fan on Roof - Coach 1482 (/showthread.php?tid=7537)

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Kitchen Exhaust Fan on Roof - Coach 1482 - hypoxia - 08-27-2023

The Kitchen exhaust fan is an Evans Tempcon HV-207321 mounted on the roof and the Evans HV210022 motor was seized.  The fan sucks air from above the refrigerator.  Unfortunately it is always venting and is mounted beside a sewer vent.  There are times the sewer gas comes down the vent which makes it imperative the fan must work.  Evans Tempcon apparently sold out and that assembly wasn't available.  I removed the motor which turned out to be a Unimotor HV033106. I searched and found a Unimotor 35576 at AutoZone listed as a Four Seasons 35576.  The dimensions are slightly different but I was able to make it fit.
                   

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RE: Kitchen Exhaust Fan on Roof - Coach 1482 - hypoxia - 10-21-2025

When we used either of the bathroom Fantastic Vents it sucked in sewer odor through the kitchen exhaust vent.  The kitchen exhaust vent doesn't have a damper on it and vents directly above the refrigerator.  The kitchen vent also had debris entering through the slots which ends up on top of the refrigerator.  I cleaned the refrigerator and added a screen to the vent to help keep debris out.  I mounted a piece of polyethylene plastic between the sewer vent and the kitchen exhaust vent (see photo) which seems to have cured the odor problem.
   

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RE: Kitchen Exhaust Fan on Roof - Coach 1482 - Jack Houpe - 10-22-2025

Jim now thats a perplexing problem, way to close to the vent in my opinion. You might have to put a 90 on it and run it away from the fan for a couple feet.

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