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Old 06-25-2018, 08:53 PM   #1
WDW
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AC auto or low?

Traveling in the HOT. South. Do you keep your AC on auto and continuous run it or place it on auto?
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Old 06-25-2018, 08:58 PM   #2
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Of the 2 choices i'd go with Auto
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Old 06-25-2018, 09:32 PM   #3
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We do auto.
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Old 06-25-2018, 09:44 PM   #4
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If it is humid outside keep it on High. This will keep the coils from freezing up.
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Old 06-25-2018, 09:51 PM   #5
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A/C FAN in Auto


Thermostat set to COOL and temp setting where you want temp to be


A/C Unit comes on and runs until temp set point is reached.......if it is reached otherwise A/C Unit RUNS
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Old 06-25-2018, 10:04 PM   #6
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Put ac in occupied area on auto and set second ac in normally unoccupied area on high fan. This all assumes you have a ducted system but will keep noise down but always circulate air for better comfort.
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Old 06-26-2018, 12:44 AM   #7
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I was leaving both on low fan and 24x7 to keep it cool, thinking Auto was harder on the equipment but now Iím wondering.....
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Old 06-26-2018, 01:44 AM   #8
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I was leaving both on low fan and 24x7 to keep it cool, thinking Auto was harder on the equipment but now I’m wondering.....
On my system the only difference between 'On' and 'Auto' is that when On the fan runs constantly. The compressor still turns on and off as cooling is needed, but the fan runs always. So you're not necessarily COOLING 24x7, you're just moving air 24x7.

Again, on mine, High and Low determine fan speed, not how much the compressor runs. I always run it on High to reduce the chance of freezing the coils.

On Auto it works just like the AC at home. Everything turns on when cooling is needed, everything turns off when the set point is reached.

In the main living area and during the day I run both ACs on Auto.
At night I switch the bedroom AC to On so that the fan runs all night. We like both the fan noise and the constant air movement. The compressor still cycles on and off as cooling is required.
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Old 06-26-2018, 04:49 AM   #9
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On my system the only difference between 'On' and 'Auto' is that when On the fan runs constantly. The compressor still turns on and off as cooling is needed, but the fan runs always. So you're not necessarily COOLING 24x7, you're just moving air 24x7.

Again, on mine, High and Low determine fan speed, not how much the compressor runs. I always run it on High to reduce the chance of freezing the coils.

On Auto it works just like the AC at home. Everything turns on when cooling is needed, everything turns off when the set point is reached.

In the main living area and during the day I run both ACs on Auto.
At night I switch the bedroom AC to On so that the fan runs all night. We like both the fan noise and the constant air movement. The compressor still cycles on and off as cooling is required.
Fan speed IS the only difference between High and Low.

Fan running constant or cycling with the compressor IS the only difference between Fan and Auto.

Air conditioner compressors are single speed, on or off devices. When cooling is needed the compressor is ON. When the compressor is ON, the fan must be running to move air past the coils.
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Old 06-26-2018, 06:04 AM   #10
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When it is hot here in AZ. I run it in the ON position on the front unit to keep air moving. Otherwise the front of the coach gets too warm before the thermostat in the middle of the coach turn the a/c back on. Sometimes when really hot I will run the bedroom a/c in the ON position and set a fan on the bed blowing out the door to help the front of the coach stay cool.
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Old 06-26-2018, 07:47 AM   #11
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Fan speed IS the only difference between High and Low.

Fan running constant or cycling with the compressor IS the only difference between Fan and Auto.

Air conditioner compressors are single speed, on or off devices. When cooling is needed the compressor is ON. When the compressor is ON, the fan must be running to move air past the coils.
This is exactly how they should work. However, when mine is on automatic, the fan will slow down on it's own to low once it is 1 degree from the set point and then cycle on and off when needed. If we need air to be moved when the A/C's are off we simply run a small fan in back room and aim it up front.
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Old 06-26-2018, 09:44 AM   #12
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Originally Posted by Ssowers View Post
Put ac in occupied area on auto and set second ac in normally unoccupied area on high fan. This all assumes you have a ducted system but will keep noise down but always circulate air for better comfort.
Hi ! Welcome to IRV2! We're sure glad you joined the gang!

Noticed you are new and wanted to say hello.

I like your suggestion for A/C operation!

Good luck, happy trails, and God bless!
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Old 06-26-2018, 09:52 AM   #13
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What he said:



Quote:
Originally Posted by twinboat View Post
Fan speed IS the only difference between High and Low.

Fan running constant or cycling with the compressor IS the only difference between Fan and Auto.

Air conditioner compressors are single speed, on or off devices. When cooling is needed the compressor is ON. When the compressor is ON, the fan must be running to move air past the coils.
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Old 06-26-2018, 10:39 AM   #14
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One thing to remember about the fan is that it cools the compressor and condenser as well. Cooling the condenser will reduce the high pressure side of the system making it easier on the compressor when it starts. A compressor needs all the help it can get in high heat conditions.
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