Not the same model but ours handles the AZ heat fine with the standard two 15K A/Cs as long as you don't let it get real hot inside before you turn the air on. We don't have much humidity but we do have plenty of 105-115 days.
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Zack and Donna plus Millie and Ranger
2018 3160RL
"Life is too short to stay indoors, enjoy the ride!"
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