Quote:
Originally Posted by Fordguy64
ok another update. ive manage to get all of the fans working. 2 run on 120v and the other one runs on 24vdc.
but i have a question that i came up with when i was looking for fans. (didnt find any good cheap ones) i have an old 10seer 2.5 ton condenser that i had thought about running one of the 1 ton units with it but with out a condenser fan? basically the idea was to just have the large surface area to dispers the hot or cold?
stupid idea? just trying to thing outside the box..
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It will work if there is enough surface area and natural convection. It will work even better if the fan was slowly moving. To experiment with the airflow, grab a 3 dollar light dimmer from your favorite home improvement store and wire it to the fan like it is a light to be dimmed. If you wanted to be savvy, a thermostat could be rigged in the same spot to do the deed.
This approach would only work in cooling mode. Your sweet spot would exist below a certain condenser temp where fan power to cool the condenser is less than the added load on the compressor. Sort of the opposite of a "low ambient" control for walk-in coolers.
In heating mode, below a certain temperature you want to run the fan all the time. If the outdoor hx is large, you may get down in the 30's before the thing starts making frost. A TXV really helps in these conditions.