How cold is your AC?

[BillK]

On our past trip our ac at the events was blowing just above 60 degrees, the camper stayed a little over 70? Is that pretty typical of travel trailers?

[bigmurph]

How hot was the air outside? His much humidity? Are your filters clean? Can you measure the air going into the a.c. unit?

[Rdeejr]

When temps above 90, I use the duct bypass on both units and dump air into the rooms. This cools off rooms and cycles the units. Otherwise the units run all the time and don’t cool.

[bplantcjf]

I have heard that the air coming out of the A/C should be 15-18 degrees colder then the air going in. In real hot weather it is hard for the camper A/C to keep it cool.

[5picker]

Originally Posted by BillK

On our past trip our ac at the events was blowing just above 60 degrees, the camper stayed a little over 70? Is that pretty typical of travel trailers?

BillK... If you have a temp delta of about 15º of the air going in to air coming out, you are doing good. These boxes are poorly insulated and hard to cool.

Suggestions... run the unit on high.
Use the 'dump' feature to get a head start on cooling the room. ('dump' meaning open the sliding vents on the A/C unit's inside cover)
Start the unit earlier in the day. It is easier to keep it cooler than trying to cool down a hot box.

[hankpac]

RV Roof air are only capable of reducing the inside temp about 20 degrees from outside ambient. If it is 100 degrees outside expect no better than 80 inside. Especially if you are parked in the sun. I have two roof Airs, one in the garage, and if I really need it to cool down, I run both, with the sliding door open between compartments. I can get it to about 72 in full sun.

[Witch Doctor]

Originally Posted by bplantcjf

I have heard that the air coming out of the A/C should be 15-18 degrees colder then the air going in. In real hot weather it is hard for the camper A/C to keep it cool.

You are 100% correct, they will not do any better then that when it is 90 degrees outside, did HVAC for along time...

[BillK]

Originally Posted by 5picker

First off... BillK's and weatherguru1's issues are completely different.

BillK is refering to a roof mounted A/C unit and weatherguru1 is talking about a factory chassis, in-dash A/C system.

BillK... If you have a temp delta of about 15º of the air going in to air coming out, you are doing good. These boxes are poorly insulated and hard to cool.

Suggestions... run the unit on high.
Use the 'dump' feature to get a head start on cooling the room. ('dump' meaning open the sliding vents on the A/C unit's inside cover)
Start the unit earlier in the day. It is easier to keep it cooler than trying to cool down a hot box.

weatherguru1... 39º air at the vents in a motorhome is wishful thinking at best.

This is the roof mounted unit in my wildwood 201bhxl. Outside temp was about 90*. I was just curious what normal it. My F150 will blow 45* from the vents all day long regardless of temp. My home unit gets my house to 68 with out issue. I understand there are a lot of factors, I was just curious what the norm was

[clayart]

Originally Posted by BillK

On our past trip our ac at the events was blowing just above 60 degrees, the camper stayed a little over 70? Is that pretty typical of travel trailers?

Aside from he fact that camper boxes are hard to cool in very hot weather, the draw of electricity tends to cause low electric power on the post especially at dinner time because of heavy power usage. We have often had to shut our AC off when the power went down to around 100. We were afraid of damaging our compressor. Many campgrounds cannot handle today’s draw of electricity by campers.

[rockfordroo]

Originally Posted by BillK

This is the roof mounted unit in my wildwood 201bhxl. Outside temp was about 90*. I was just curious what normal it. My F150 will blow 45* from the vents all day long regardless of temp. My home unit gets my house to 68 with out issue. I understand there are a lot of factors, I was just curious what the norm was

BillK, you might want to check this thread:

http://www.forestriverforums.com/for...-ac-42280.html

[Dave Lyon]

To the OP - for whatever reason my ac works fantastic and I have a hybrid. When setting up I turn the AC on high and leave the door open for a couple of minutes, it blows out the hot air.

A couple of years ago it was 90 degrees F and sunny and we left the trailer for several hours and when we returned, I could've hung meat in the trailer.....it was 65 degrees inside. I had to increase the heat.

I have no problem /concerns with the performance of my AC unit.

[Vince and Charlette]

We’re currently camping in Arkansas where it’s 95 outside with a relative humidity just about as high. (No one over 40 is outside.) We’ve got a new 2018 Berkshire with two A/Cs. Lowest we’ve seen in living room is 76 and 78 in bedroom. (That’s after “pre-cooling” it in the morning and keeping the shades down.) As with some other newer models, there is no opening to blow air directly into room. Of course, “suffering “ is a relative term!

[Witch Doctor]

Your really doing kinda good in those conditions.

Originally Posted by Vince and Charlette

We’re currently camping in Arkansas where it’s 95 outside with a relative humidity just about as high. (No one over 40 is outside.) We’ve got a new 2018 Berkshire with two A/Cs. Lowest we’ve seen in living room is 76 and 78 in bedroom. (That’s after “pre-cooling” it in the morning and keeping the shades down.) As with some other newer models, there is no opening to blow air directly into room. Of course, “suffering “ is a relative term!

Sent from my SM-N920V using Tapatalk

[BillK]

Originally Posted by Vince and Charlette

We’re currently camping in Arkansas where it’s 95 outside with a relative humidity just about as high. (No one over 40 is outside.) We’ve got a new 2018 Berkshire with two A/Cs. Lowest we’ve seen in living room is 76 and 78 in bedroom. (That’s after “pre-cooling” it in the morning and keeping the shades down.) As with some other newer models, there is no opening to blow air directly into room. Of course, “suffering “ is a relative term!

Yikes.. I guess I’m doing pretty well..

[JohnnyT]

We cut short a trip at a lake in OK where it was 98 outside each day. Our 2016 832OKBS with 2 AC units could not keep the internal temp below 85. At night it would freeze us but after about noon, it became unbearable. It makes me wonder if my units are low on freon or if these stock AC units just suck. We've done no weather proofing at all so maybe that would help. Until we get this resolved, no camping when it's over 90!

[rockfordroo]

Originally Posted by JohnnyT

We cut short a trip at a lake in OK where it was 98 outside each day. Our 2016 832OKBS with 2 AC units could not keep the internal temp below 85. At night it would freeze us but after about noon, it became unbearable. It makes me wonder if my units are low on freon or if these stock AC units just suck. We've done no weather proofing at all so maybe that would help. Until we get this resolved, no camping when it's over 90!

See Post #10 for improving your AC.

[RnRushin]

May want to have an HVAC repairman check the unit. Using a digital probe thermometer the air coming out my vents was around 60 deg F. The infrared temp guns are not that great for checking AC out put. A probe is best and leave for a minute or two to get an accurate reading. I use a digital meat probe.

With an outside temp in upper 90s camper inside temp would be 78-80 with AC running set on 76-78 and unit did not cycle. Last year with same outside temps AC would cycle. My HVAC repairman installed a tap and found it was low on coolant. He recharged and now AC works great. After the recharge the best reading I got from a vent was was around 49 deg now averaging around 53-54 from the vent with thermostat set at 78 and outside temp in upper 90's. 32' with two AC units, but with only the main AC running while parked at home using a 30 amp and unit still cycles on and off during day.