2020 grey wolf TH poor AC

wa8yxm wrote:
Many RVs simply do not have enough A/C.. But when you say you checked topside. Did you remove the covers and look at the FAN side of the evaporator coils.

Most A/Cs blow air through the condenser so any "Crud" that builds up on the condenser is hidden where you can't see it.

Colemans Suck. so you can easily see that they need cleaning. and it's easier to do.

It was clean, fins good , temp sensor good.

Many RVs simply do not have enough A/C.. But when you say you checked topside. Did you remove the covers and look at the FAN side of the evaporator coils.

Most A/Cs blow air through the condenser so any "Crud" that builds up on the condenser is hidden where you can't see it.

Colemans Suck. so you can easily see that they need cleaning. and it's easier to do.

Hond099

First thing I'd do is in the morning set the thermostat at 70-72. If you set it a 79, by the time it comes on trailer walls, interior air etc. is already hot and trying to bring it down is very hard If you can start the morning at 70 or so the AC will start working against a low temp and be able to hold it longer before it starts to rise.

Now where we are it usually cools off to at least low 70's at night, often the mid 60's. so the trailer outside and inside is cooled down by morning. And then the sun has to heat everything back up, helps on the AC load. if we were where it only got to the 80's at night, I suspect we'd have a hard time getting the trailer to the low 70's by morning and it would heat up quick.

My take is that many of the larger trailers are shipped with inadequate AC units. 20ft one AC fine, 30 ft, one AC unit, southern temps day and night..... another story.

Dometic

ktmrfs wrote:

dougrainer wrote:
1. Length of RV and do you have slideouts and how many
2. 50 amp or 30 amp shore power
3. Ducted or non ducted AC plenum system
4. BTU of roof unit. It is either 13,500 0r 15,000. Brand and Model of AC unit if you do not know BTU.
5. I assume 1 AC unit and not 2. Doug

any of the above can have a big influence on cooling. Our trailer is a 32 ft with dual slides, lots of windows. As delivered AC was not even marginal, worse than that. Things we did
a) took down the ac cover inside the trailer and used metal duct tape to seal up all the air cracks- there were lots
b) took down all the ceiling vents and used metal tape to seal the vent ducting to the ceiling material so air didn't deflect into the ceiling instead of the trailer
c) added more ceiling vents. easy to do, most ducted systems have two duct runners that extend a long ways, just cut holes in ceiling to mount additional ducts.
d) after the last duct block off the rest of the deuct with insulation/foam pad or something

Even with all this once the temps are in the high 90's in the day, we turn on the AC early in the morning, set it to around 70F and let it rip. by early afternoon inisde temmps start to rise and it will be high 70's by evening if we try to cool the whole trailer. close off bedroom vents and close bedroom door helps.

One time we were in the sun with temps at 105F and the trailer rose to over 80F by late afternoon.

Next step I did and am seeing what happens today with temps to hit 100 is install the RV airflow system. first indications are it boosted airflow noticeably. We shall see this afternoon what the temps do, but it is 92F outside now and the trailer and I set the thermostat to 72 this morning and it's still 72 at 1pm with it 92 outside.

Will see how this holds.

Wish I could hold 80, more like 90 and stat set at 79

Y-Guy wrote:
Hondo99 I'm going to move this post to the Tech Issues forum as I think you'll get more assistance. Sharing the brand and model of your A/C unit will probably be helpful as well as the size of your Grey Wolf.

Thank you!

Has ducted work with vent in bedroom that thing hardly blows air ??

On 30 amp

I’ve check unit on roof it’s clean.I’ll probably call service tech to come out .
Temp coming out ac is 70 degrees, I know this unit wasn’t right since I bought it in May!
I don’t have time to hook up and drop at dealer I work on the road, it’s only 1 unit and grey wolf is 30foot
????

dougrainer wrote:
1. Length of RV and do you have slideouts and how many
2. 50 amp or 30 amp shore power
3. Ducted or non ducted AC plenum system
4. BTU of roof unit. It is either 13,500 0r 15,000. Brand and Model of AC unit if you do not know BTU.
5. I assume 1 AC unit and not 2. Doug

any of the above can have a big influence on cooling. Our trailer is a 32 ft with dual slides, lots of windows. As delivered AC was not even marginal, worse than that. Things we did
a) took down the ac cover inside the trailer and used metal duct tape to seal up all the air cracks- there were lots
b) took down all the ceiling vents and used metal tape to seal the vent ducting to the ceiling material so air didn't deflect into the ceiling instead of the trailer
c) added more ceiling vents. easy to do, most ducted systems have two duct runners that extend a long ways, just cut holes in ceiling to mount additional ducts.
d) after the last duct block off the rest of the deuct with insulation/foam pad or something

Even with all this once the temps are in the high 90's in the day, we turn on the AC early in the morning, set it to around 70F and let it rip. by early afternoon inisde temmps start to rise and it will be high 70's by evening if we try to cool the whole trailer. close off bedroom vents and close bedroom door helps.

One time we were in the sun with temps at 105F and the trailer rose to over 80F by late afternoon and kept going up till about 7pm.

Next step I did and am seeing what happens today with temps to hit 100 is install the RV airflow system. first indications are it boosted airflow noticeably. We shall see this afternoon what the temps do, but it is 92F outside now and the trailer and I set the thermostat to 72 this morning and it's still 72 at 1pm with it 92 outside.

It hit 100 about 3pm, 5:30 still 100. temp inside rose to 77 at 5:30, Trailer is sitting on concrete not gravel like most campsites, but hasn't been in direct sun all the time, but trailer is aimed north-south so awing side is getting direct west sun.

We shall see what time it gets back down to 72 inside.