This video is a 3D animation showing how to use the full line of Refrigeration Technologies Viper products to clean HVAC equipment safely and effectively.
Before you start using any of the Viper cleaning products, shut the power off and confirm that it is off with a voltmeter. You'll also want to lay down drop cloths to protect the work area and avoid causing damage to the customer's property. Then, inspect the entire system's overall condition and cleanliness; look for oil spotting as well, which may indicate a leak. Cleanliness is a crucial part of optimal system operation, as soil buildup can cause poor airflow and a myriad of other problems.
The Refrigeration Technologies Viper product line includes evaporator coil cleaner (a self-rinse solution for cleaning evaporator coils in place), condenser coil cleaner (for cleaning condenser coils and blower wheels that have been pulled), and a brightener for exceptionally heavy soil buildup on outdoor coils. Each main cleaning solution also comes in a highly concentrated venom pack.
All liquid cleaners (except the EVAP+ gallon jug) have a dilution ratio that you must use to mix the cleaner with water before applying it to the HVAC equipment. The EVAP+ gallon jug can be applied directly into the pump sprayer. Most Refrigeration Technologies Viper products can be applied to the HVAC equipment in a traditional pump sprayer or with a foam gun that connects to a hose.
When using a pump sprayer, you will need to dilute the cleaner with water. To dilute the cleaner, add both numbers of the dilution ratio and divide that sum into the volume (in ounces, up to the fill line). The quotient represents the amount of cleaner you will add to the pump sprayer, and you will fill the pump sprayer up to the fill line with water to get your proper mixture. If using the foam gun, you will turn the dial on the center to determine how heavy or light you want your cleaning will be.
When cleaning the evaporator coil in place, try to expose as much of the coil as possible to get the most access. Remove solid debris from the surface of the coil using a soft-bristle brush before applying the chemical cleaner. It's also a good idea to clean out the drain line and leave a wet/dry vacuum connected while you clean the evaporator coil. Add EVAP+ to the pump sprayer directly or apply and dilute the evaporator Venom Pack. Spray the coil with the cleaner and let it sit for several minutes. In many cases, you don't need to rinse the Viper evaporator coil cleaners.
On dirtier evaporator coils, you may consider using the Viper aerosol can. You would apply the aerosol foam from bottom to top in a zigzag pattern and let it dwell on the coil for several minutes. Then, you may rinse it off with water. Clean excess foam and soil with a wet/dry vacuum, rags, or a soft brush.
After cleaning the evaporator coil, you may apply Viper Pan & Drain Treatment to the drain pan and bottom row of the evaporator coil to keep sludge from building up in the drain.
You'll typically use the foam gun outdoors with the condenser/Heavy Duty or Brite cleaners. Add the Viper cleaner to the foam gun, set your dilution ratio on the dial, and apply foam liberally to the condenser or blower wheel. Allow the foam to dwell for 5-10 minutes and then rinse it off thoroughly.
When cleaning heavily soiled condensers, remove the guard completely and start removing some of the surface soil with a soft brush. Before applying chemical cleaner, rinse the coil with water from inside to outside. When applying foam to the condenser, work from the inside out and build foam from the bottom up. Allow the foam to dwell for 5-10 minutes and then rinse it off.
When you have finished, reassemble the equipment and test it safely. Be sure to let components dry before you test anything.
Learn more about Refrigeration Technologies Viper product line at https://www.refrigtech.com/.
Read all the tech tips, take the quizzes, and find our handy calculators at https://www.hvacrschool.com/.

In this video we're going to show the full line of refrigeration technologies, viper products and how to do some of the most common cleaning tasks using them first shut off power to the equipment and ensure that it's off using a voltmeter protect the work area to ensure That you're not going to cause any damage, inspect the equipment in component cleanliness and condition. This includes the blower wheel, the evaporator coil and the condenser coil pay attention to any signs of oil spotting which may indicate refrigerant leak points blower, wheel. Cleanliness is critical for system airflow and proper operation. A dirty evaporator coil causes low suction pressure and can result in freezing.

It also decreases system performance. A dirty condenser coil drives up head pressure, increasing compression ratio and decreasing system performance within the refrigeration technologies, viper line. We have the standard gallon jugs, as well as the more concentrated venom packs, evap plus and the evaporator coil. Venom pack are specifically designed for cleaning evaporator coils, as well as inside the cabinet, with the components still in place.

The condenser coil venom pack and viper heavy duty are designed for more intensive outdoor cleaning, specifically condenser coils, but we also use them with blower wheels that we've pulled out for cleaning the more aggressive brightening cleaners are used only in cases where the soil buildup is extreme. When using these cleaners check the specific dilution instructions, the evap plus cleaner in the gallon jug does not require dilution and can be poured straight into a pump sprayer, whereas the more concentrated evaporator cleaner and the venom pack does require appropriate dilution. Refrigeration technologies, viper products have two primary delivery methods: a pump sprayer or a foam gun connected to a hose check carefully for dilution instructions. You'll notice that the viper hd gallon jug gives separate dilution, instructions for heavy duty, medium duty, light duty and non-rinsing.

Here we're going to show you how to dilute viper hd for medium duty, cleaning, first you're going to need to know the fill volume in the case of this refrigeration technologies pump sprayer, it takes 37 ounces to fill to the line we've created this pump sprayer guide That shows what medium duty dilution is, in this case, it's 3.4 ounces. In order to properly use a dilution ratio, you must first add the ratio numbers together and divide the sum into the pump sprayer fill volume, which is 37 ounces. In this case, dividing 37 by 11 gives us approximately 3.4 ounces, which is the total fill amount for the chemical pour that fill amount into the pump sprayer and then fill the sprayer with water up to the fill line when using the viper foam gun. That's connected to the hose, you can simply add the cleaner directly to the gun and select the proper setting on the gun for appropriate dilution.

Here's our viper foam gun guide for each of the cleaners when cleaning the evaporator coil in place, open it up, so that you can gain access to as much of the coil as possible. In some cases you can remove the triangular panel at the front of the coil to access the underside. In other cases, you may be able to gain access from underneath we recommend using a soft bristle brush to clean as much of the solid debris as possible before beginning with chemical cleaners. We also suggest cleaning the drain line first and leaving a wet dry vacuum connected during cleaning to remove the cleaner and suds that are rinsing off the coil.
In the case shown for evaporator in-place cleaning, you can choose the evaporator venom pack cleaner or evap plus, as we mentioned before, evap plus does not require dilution and can be poured directly into the pump sprayer in the case of the venom pack. You would add only two to three ounces of the concentrate to the pump sprayer and then fill the sprayer with water up to the fill line. Spray down, the coil completely allow the cleaner to remain on the coil for several minutes before rinsing. However, it's worth noting that you are not required to rinse the evaporator.

If you use one of the viper evaporator cleaners appropriately diluted for coils that are dirtier, we suggest using the viper aerosol. Can the aerosol can is a high foaming cleaner and you spray the pin spray of the aerosol can into the coil and allow it to work from outside to inside, in most cases allow the foam to dwell on the coil for 5 to 10 minutes and then Rinse as required, it's a good idea to have rags and a wet dry vacuum nearby to be prepared to clean off any foam and soil that begins to form on the coil. A soft bristle brush is also handy, viper, pan and drain treatment after you've completed cleaning and rinsing the coil, as required, use, viper, pan and drain treatment across the pan and the bottom row of the coil. Now, let's show how to clean a blower wheel, that's been removed.

Here we show the hose connected foam gun to apply foam liberally to the blower wheel, give the foam a few minutes to dwell and then rinse thoroughly to finish cleaning the blower wheel repeat as necessary when cleaning a very soiled condenser coil. It's best to remove the guard completely and remove any of the surface debris with a soft brush, especially in cases when you're dealing with cottonwood dryer lint or in some cases, animal hair. First pre-rinse, the coil from inside to outside next choose your cleaner. You can use either the condenser coil venom pack, viper heavy duty or viper brightener cleaner dilute, as recommended work from the inside out.

Generally speaking, build foam from the bottom up make sure to work foam in between all the rows and rinse completely. When done finally reassemble. The equipment and test safely, if any of the components are still wet, ensure that they fully dry before completing your testing. As you can see, the viper cleaning line, including the gallon jugs and the venom packs, as well as the aerosol coil cleaning spray and the pan and drain treatment, create a full line of hvac cleaning chemicals that are both safe and effective.
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