When the exhaust is open the air coming from the ac is cooler than it is when the exhaust is closed.
Wall mounted ac exhaust closed or open.
This maintains a good balance of new air but also keeps the unit from working too hard.
Pulling on the damper opens the vent while pushing it in closes it.
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Depending on the make and model of the ac the control may be a button sliding lever or pull out lever.
Step 3 press the control button slide the lever or pull the lever to open the vent.
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Grounded three prong power cord.
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Thomas here from smart air.
Personally i don t see why they.
Open draws in some outside air.
I was living in china and concerned about what the air was doing to my health so i started building diy air purifiers and doing air quality tests in china.
Closed just recirculates inside air.
Favorite answer if some one has smoked inside the a c room you open the exhaust to let the smoke be exhaust out of the room gradually or to remove any oder smell.
Christopher powell jul 22 2017 11.
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Also called the damper switch the vent in older windows and wall mounted ac units look like a tiny black knobs in the air inlet grill from where cold air is being blown into the room.
Locate the open close vent control.
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Comfort zone 16 in.
Newer models will just have a button in place of the damper labeled as exhaust.
Usually the idea setting is half open half closed for recirc outside air.
They tried to keep their mixing boxes so they would pull half half.
After the smell or the smoke is.
This was from a friend who used to design hvac systems for large buildings.