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dougwalker

Why does window A/C have a bellows controlled drain valve?

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dougwalker   
dougwalker

LG thru-the-wall 1 ton A/C unit with heat... there's a drain valve in the rear corner of the pan, but why not just have a hole? The darn thing appears to be thermostatically controlled, here's it's part number:

5220A30006A

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jumptrout   
jumptrout

It is there because accumulated condensation assist in cooling the refrigerant lines for correct operation.

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dougwalker   
dougwalker

Oh, as much sense as that makes, then when does it ever open? I haven't seen it open yet, and there are no wires going to it...

It appears to have a bellows so it must be thermostatically controlled.

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nickfixit   
nickfixit

Maybe it drains when it gets cold, or when heat functions are selected. They would not want water to freeze in the pan, and the water would not aid the heat functions.

When in cooling mode, the condenser fan slings water onto the hot condenser thus aiding the heat dissapation.

Yes, I need spell check... but why itsn't there one in Windows 7, or IE, or AOL, or this forum?

Stupid brain lets me down

Edited by nickfixit
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dougwalker   
dougwalker

hmmm.... opens when cold? That's a twist. One of these days I'm going to pop one of these in the freezer and then hit it with a blow dryer just for poops n giggles. THANKS FOR SHARING!

Best regards ~

Doug

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DADoESTX   
DADoESTX

I do recall reading some tech info on a window unit of a brand I don't recall. A heat/cool unit, which had a condensate drain valve as NickFixIt suggests ... opens when cold so any standing water doesn't freeze and jam the condensor fan.

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