101 degree heat & 30 amp air-conditioning
We are setting in a RV park where the temps today reached 102. The RV park didn't have any 50 amp sites available, so we are set on 30 amp. Had Air set on 76 degrees and current temp in MH is about ...
Forum Discussion
What some posters are saying above that a properly operating air conditioner will only cool 15-20 degrees cooler than the outside temperatures is NOT CORRECT. This misconception of how an air conditioner cools comes up all the time in the forums and can really lead RV owners astray.
A properly operating air conditioning system will cool 15-20 (or even slightly more) degrees cooler than it's INTAKE AIR TEMPERATURE.
An air conditioning system's intake air comes from inside the RV (it recirculates air only, and hence should not be taking in any "new hot outside air" at all). What this means is: If your air conditioner(s) have adequate cooling (BTU) capacity for the size of your RV versus how well insulated the RV is versus how hot it is outside - then the longer the air conditioner(s) is(are) running, the cooler and cooler it will get inside the RV (all the way down to whatever you set the thermostat to) because as the interior air cools - the air conditioner(s)'s output air will follow this right on down always staying 15-20 (or even slightly more) degrees cooler than the air coming into it from the constantly cooling RV's interior air.
The cause of the OP's situation was simple - not enough total air conditioning BTU capacity operating at the time for their rig's size and insulation versus the outside temperature. This is assuming the the air conditioners did not have any air intake "leaks" such that they were getting hot outside air mixed in with the intake air that was supposed to be coming only from the the RV's interior.
For maximum versatility, buyers of RV's that anticipate that they may sometimes be caught camping in hot temeratures should look for a small as they can tolerate and well insulated RV with a large as possible BTU capacity air conditioning system. Again for maximum versatility, this should include both the hookup capacity and generator capacity to power the total installed air conditioning BTU cooling capacity.
A properly operating air conditioning system will cool 15-20 (or even slightly more) degrees cooler than it's INTAKE AIR TEMPERATURE.
An air conditioning system's intake air comes from inside the RV (it recirculates air only, and hence should not be taking in any "new hot outside air" at all). What this means is: If your air conditioner(s) have adequate cooling (BTU) capacity for the size of your RV versus how well insulated the RV is versus how hot it is outside - then the longer the air conditioner(s) is(are) running, the cooler and cooler it will get inside the RV (all the way down to whatever you set the thermostat to) because as the interior air cools - the air conditioner(s)'s output air will follow this right on down always staying 15-20 (or even slightly more) degrees cooler than the air coming into it from the constantly cooling RV's interior air.
The cause of the OP's situation was simple - not enough total air conditioning BTU capacity operating at the time for their rig's size and insulation versus the outside temperature. This is assuming the the air conditioners did not have any air intake "leaks" such that they were getting hot outside air mixed in with the intake air that was supposed to be coming only from the the RV's interior.
For maximum versatility, buyers of RV's that anticipate that they may sometimes be caught camping in hot temeratures should look for a small as they can tolerate and well insulated RV with a large as possible BTU capacity air conditioning system. Again for maximum versatility, this should include both the hookup capacity and generator capacity to power the total installed air conditioning BTU cooling capacity.
