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Tag Archives: RV roof ac

Simple Ways to Keep the Air in Your RV Clean

06 Wednesday Nov 2019

Posted by Coach-Net in RV Information

≈ 3 Comments

Tags

Air Vent, RV, RV cleaning tips, RV roof ac, RV roof air conditioner, RVing

Simple Ways to Keep the Air in Your RV Clean

With more than 141 million Americans breathing unhealthy air every single day, it’s clear that pollution has become a nationwide issue. With that said, it’s more important than ever that we keep the air in our RV’s as clean and pure as possible in order to protect against illness. No matter where you’re heading, keeping the air clean when on the road doesn’t have to be difficult – especially with these simple methods.

Avoiding mold

Along with dust and the dreaded pet dander, mold spores and growth can also prevent the air in your RV from being the cleanest. One of the best things you can do is to to avoid mold altogether, as it can easily trigger allergies and other respiratory issues – not to mention make your RV smell unpleasant. For that reason, proper ventilation is a must in order to prevent the creation of a damp environment that mold thrives in. In an RV, this means opening windows, using an air purifier, and even running the air conditioner, which can work to remove water-soluble air contaminants.

Natural remedies

RV PlantsWhile air purifiers can do the job, other natural remedies may work just as well. For example, bringing houseplants into the space can be an excellent all-natural way of boosting the air quality in your RV. In fact, using indoor plants offers benefits that you can’t get with other store-bought systems. For example, not only can plants absorb pollutants, but they may also be able to restore the air quality as well. Going with a natural remedy for controlling the air quality in your RV can bring other benefits too, as they can be a more cost-effective alternative to other indoor air quality systems on the market since only simple upkeep is needed – and they make a great ornamental piece.

Keeping pollution out

It’s important to realize that keeping pollutants out of your RV can play a key role in keeping the air clean. Smoking, for instance, can pose a major threat to the air quality in your RV. In fact, cigarette smoke produces a shocking 10 times more air pollution than that of diesel exhaust. That said, if you smoke, you’re better off lighting up elsewhere – especially when cigarette smoke has the potential to cling to furniture, fabrics, and other fixtures in your RV. However, cigarette smoke isn’t the only preventable pollutant to the air quality in an RV, as cleaning products may also be harmful.

Hazardous Cleaning Material

Harsh cleaning products may do their job well, though can leave behind a strong odor and varying consequences in regards to air quality. Chemical exposure from such products – even aerosol air fresheners – can cause a wide variety of health issues like eye and respiratory irritation, especially when used in a small space like an RV. To avoid these effects, using all-natural cleaning products while keeping your RV properly ventilated can provide a practical solution.

With pollution being a major factor in health and wellness, keeping the air clean in your RV is an absolute must, especially if you spend a lot of time in it. For that reason, taking the proper precautions, such as avoiding mold and the use of harsh cleaning products, you can ensure that the air quality in your RV is as clean and pure as possible.


About the author: Ali Walker

RV ProtectAww Shucks!


Linda S. ~ “This was such a pleasurable experience! Such an easy process and everyone was so helpful! Thank you!”

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RV Air Conditioning Tips

19 Wednesday Sep 2018

Posted by Coach-Net in Tech Tips

≈ 5 Comments

Tags

RV AC, RV air conditioner, RV roof ac, RV roof air conditioner, RV tech tip, RV tech tips, RV Tips, tech tip, tips, Travel Tips

RV Air ConditioningThere are some tips and tricks to making your roof AC run more efficiently and provide a cooler interior climate.

Become Familiar With Your Roof AC

The first thing to do is become familiar with how the roof AC operates and what you can expect.  Most RVers think the roof AC uses a coolant such as Freon to “dump” cold air into the rig but this is not the case.  The roof AC operates very similar to your absorption refrigerator and actually draws heat from interior air through the evaporator at the front of the unit.  Warm and humid interior air is drawn up to the roof AC through the return air vent, passes over the evaporator coil and heat and moisture is extracted from it.

If you were to take the cover off the roof AC unit and the evaporator shield you would see the evaporator fins getting very wet immediately and the moisture forming at the bottom on the drip pan.  The compressor does just that – compresses the coolant and pushes or pulls it through tubes known as the low side and high side which changes it from a liquid to a vapor.  This in turn draws moisture and heat in the evaporator and the air is then circulated back into the rig just behind the evaporator coil by the blower fan.

Evaporator

Evaporator

Blower Fan

Blower Fan

Compressor or Pump

Compressor or Pump

The coolant passes through the back condenser fins where the blower motor draws exterior air in and over the coils with the Freon.

Condenser

Condenser

With an understanding of how the system works, it’s important for owners to do a little bit of maintenance so there is proper air flow, sufficient amperage, and no air leaks in the system.

Proper Air Flow

The return air coming from the inside to the evaporator will have a filter. Roof-mounted units with the conditioned air coming directly out of the bottom will have the filter designed into the ceiling shroud.

AC Filter (non ducted)

AC Filter (non ducted)

Units with ducted air vents in the ceiling will have a grill on the ceiling.

AC Filter (ducted)

AC Filter (ducted)

These filters should be cleaned at least once a year and typically more depending on usage and how much dust might be in the air.  Most dealers indicate a dirty filter is over 50% of the issues with a roof AC cooling inefficiency!

Next, make sure the vents are open and operating properly on a ducted roof AC system.  Closed vents will restrict air flow, causing high amp draw and condensation.

  • Check and clean the condensor and evaporator coil every year.
  • Dust, pet hair, and even body powders can get pulled into the return air and clog the coils.
  • There are specific cleaners for the evaporator and condensor coils that should be used each year.
  • Since the evaporator coil is in the front and goes directly to the opening for cool air to the rig, you will need to do a low pressure clean and have a plastic sheet over the blower fan return to keep moisture from entering the rig.
  • Do not use high pressure water as it will not only make a mess, but will damage the coils.
  • Once the coils are clean, make sure they are straight and will allow good air flow.  There are even brushes or combs available to help straighten the fins on the coils.
  • Typically the evaporator coils do not get damaged, rather clogged, however the condenser coils are exposed to the outside and can get hail damage or even tree branches.

Proper Amperage

The roof AC and several other appliances run on 120-volt power which is supplied from the shoreline connection or a generator to the distribution center.  Most RV owners take it for granted that the campground connection is a 30 amp 120-volt power system and they will have no problems just like they did at home.  Unfortunately, the campground source is not as reliable as a residential system and can have severe power loss situations.  If the power drops below 110-volts, the roof AC unit will not be able to function at 100% capacity and even though you hear the fans running and other components, it will not be able to draw the heat out and efficiently cool the unit.   This is why a Surge Guard protection unit is a good idea as it will monitor the incoming voltage.

Air Leaks

Your roof AC unit is mounted with a gasket between the unit an the roof typically with 4 spring loaded fasteners that should be checked for specific torque or tightness every year.  You should be able to find the torque specs in the roof AC owner’s manual however a good hand tightening should be good.  If the gasket is not tight, you will get hot moist outside air coming into the unit and rig which will make it difficult to condidtion the exiting air.  Also, check to make sure you are not getting hot and moist outside air from vents, windows, and event roof ducting.  Seal all the leaks during hot and humid conditions and your roof AC will work more efficiently.

The roof AC can only cool the return air from the inside down about 20 degrees, so if the inside of your rig is 100 degrees, you will only get 80 degrees air back inside!  So the key is to try and keep the inside air temperature as low as possible so the roof AC can run more efficiently.

About the author:

Dave Solberg: Managing Editor, RV Repair Club

For the last 25 years, Dave has conducted RV maintenance and safety seminars, developed dealer and owner training programs, written RV safety and handyman articles, authored an RV handbook reference guide and logged over 100,000 miles on the road in an RV.

RV Repair ClubRV Repair Club is your go-to online resource for enthusiasts who want quality RV maintenance, repair, and upgrade information – a community where passionate RVers can come together to gather knowledge and share their experiences.

Learn more about RV Repair Club.

RV ProtectAww Shucks!

Brett P. ~ “So glad we decided to get Coach-net. First trip in the RV and needed it. Coach-net was a life saver.”

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