RV AC units - Questions
I have a KZ Spree 240bhs, about 24' long box that has 1 13500btu AC unit on top. Any time it gets over 85 degrees, this unit essentially fails to cool the camper to an acceptable, comfortable temperat...
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I have to laugh every time I see a post with someone saying that an RV ac unit should see 15-20 degree delta.
That delta will be after hours of running when it has reached its max heat it can remove.
I could run out to my trailer with 90 F inside and in 3 minutes it will be blowing 40ish.
Auto ac, which I have worked on for 1/4 century also sees huge deltas in temps. Limiting factor is the low side cut out cycling switch, usually set to a psi setting that correlates to about 38F depending on which refrigerant used.
Plus a car ac is about 5 hp or 4000 watts. That is nearly 3x 13,500 units.
I installed an adjustable switch in my Tahoe (cuts out at a lower psi) and it will blow 26 F while cruising down the freeway. Just have to be careful during humid months or adjust a few psi higher to avoid freeze ups.
That delta will be after hours of running when it has reached its max heat it can remove.
I could run out to my trailer with 90 F inside and in 3 minutes it will be blowing 40ish.
Auto ac, which I have worked on for 1/4 century also sees huge deltas in temps. Limiting factor is the low side cut out cycling switch, usually set to a psi setting that correlates to about 38F depending on which refrigerant used.
Plus a car ac is about 5 hp or 4000 watts. That is nearly 3x 13,500 units.
I installed an adjustable switch in my Tahoe (cuts out at a lower psi) and it will blow 26 F while cruising down the freeway. Just have to be careful during humid months or adjust a few psi higher to avoid freeze ups.
