Recycle Guard Question & Answer
ve money versus the cost of professional a/c leak repairs.
The odds of a contaminated vehicle visiting your shop are increasing daily.
Q. My machine has a built-in filter. Why do I need this extra filter?
A. Most built in filters are too far down in the recovery machines refrigerant flow path. Sealant can damage solenoid valves,
pressure sensing devices, and hoses before reaching the built-in filter. The Recycle Guard unit removes these contaminants
before they can damage any valves or other devices in your recovery machine. Additionally, the filters built into current
recovery equipment are made to trap solid debris. Most were designed to an SAE specification that was created years ago
and did not require sealant protection.
Q. Do all sealants and seal conditioners damage my recovery equipment?
A. Yes. Both the seal sweller and leak-stop type sealants and seal conditioners have potential to clog your refrigerant recovery
hoses and cause solenoid valves to fail.
Q. I haven't seen any sealants in my area, how much of this stuff is actually being used?
A. Sealant and seal swellers are included with refrigerant sold in small cans for charging a/c systems. There are millions of
applications sold each year in every state and province. Visit any large chain stores that sell auto parts and see how much
shelf space refrigerant in small cans occupy. If that much sealant is being sold, how many contaminated vehicles may be
headed to your service bays?
Q. Where is the Recycle Guard placed in relation to the refrigerant recovery machine?
A. Recycle Guard is connected to the a/c service hoses in series between the vehicle and your recovery machine.
Q. How does Recycle Guard work?
A. Refrigerant converts to a gaseous vapor at a very low temperature. Sealants, dyes, lubricant, and other contaminants
remain a liquid at typical under-hood temperatures. When the refrigerant mixture enters the Recycle Guard chamber, the
refrigerant boils off and exits to your recovery machine. The sealants, dyes, lubricant, or other contaminants remain in the
canister.
Q. What is the purpose of the knob?
A. The knob is a control valve that allows the operator to conveniently switch between recovery and charging operation
without having to disconnect Recycle Guard and reconnect service hoses. A clockwise turn of the knob switches Recycle
Guard into recovery mode. Contaminants and refrigerant enter Recycle Guards filtration system and go to the recovery
machine. A counterclockwise turn of the knob switches Recycle Guard into recharge mode. This allows clean refrigerant
to bypass Recycle Guards filters and go to the car.
Q. What happens if I forget to close the valve before I recharge the vehicle?
A. No refrigerant will flow through the unit back to the car. There is a check valve in the Recycle Guard unit that prevents
refrigerant flow if the control valve is not fully closed.
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Q. What happens to the sealant, dye, and lubricant trapped by the Recycle Guard Unit?
A. The sealants, dyes, lubricant, and other contaminants enter the Recycle Guard Unit and are separated from the refrigerant.
All contaminants collect at the bottom of the unit. After recovery, the operator then drains the contaminants using the drain
valve.
Q. How often should I drain the oil, debris, and other contaminants?
A. Drain all contaminants after each recovery operation. Measure the amount of lubricant removed so that lubricant can be
added back to the vehicle.
Q. Do I still have to drain the oil from my recovery station?
A. Draining all oil from the recovery station is not necessary after using Recycle Guard. No lubricant or other liquid will enter
the recovery machine from the Recycle Guard Unit. For a short period of time residual oil left in the tubing from previous
recoveries, before Recycle Guard use, will collect in the recovery machine separator. After several recoveries using
Recycle Guard, there will not be any more accumulation of oil in the recovery machine.
Q. How do I handle any air that may remain in the Recycle Guard canister after it is opened for cleaning?
A. Air is separated and removed from the refrigerant stream by the recovery machine. Each a/c refrigerant recovery machine
is required by SAE standard to purge air from the system as part of recovery operation. In some machines the air purge
function is automatic, while in others it is a manual feature. The relevant SAE standards are J-2210 for R134a and J-1991
for R-12.
During vacuum and re-charge operation, the technician puts Recycle Guard in bypass mode (by turning the Control Knob
counterclockwise until it seats). In bypass mode, nothing in the Recycle Guard canister -- including air, sealant, dye,
lubricant, or other contaminants -- will pass back to the vehicle or the recovery machine.
Q. Why is the Recycle Guard canister so large?
A. The Recycle Guard unit can hold 16 ounces of liquid. The canister is designed to be this size to handle the refrigerant
expansion as it converts from a liquid to a vapor without significantly slowing recovery operations.
Q. What happens if we flood the Recycle Guard with more than 16 ounces?
A. The Recycle Guard two-stage filtration system will still separate the sealants, dyes, lubricants, and other contaminants.
However, flooding the unit will slightly slow down recovery.
Q. Are the Recycle Guard filters replaceable?
A. Yes. Both the primary and secondary filters in the Recycle Guard unit are easily replaceable. Replacement filters are
available wherever Recycle Guard is sold.
Q. Are Recycle Guard filters difficult to change?
A. Both filters can be changed in five minutes. Filter replacement procedures are included in the Recycle Guard use
instructions.
Q. How often do the Recycle Guard filters need to be replaced?
A. The Recycle Guard filters provide good service for approximately 30 hours of refrigerant recovery operations. The
Recycle Guard filtration system should be changed after 30 hours of recovery/charging operation, or when recovery rate of
youre a/c service slows significantly. Both filters should be replaced at the same time.
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Q. How do I mount Recycle Guard on my machine?
A. Recycle Guard must be mounted or used VERTICALLY. Attach the universal hanger to Recycle Guard using the two
screws provided. Hang Recycle Guard within reach of your a/c service hoses and recovery machine. Alternately, you may
wrap a metal band around the Recycle Guard unit and bolt it onto your recovery machine for a permanent placement.
Q. Why should I recover using Recycle Guard from the Low Side of the a/c system?
A. Recycle Guard will work with refrigerant in either a gas or liquid state. However, an excessive amount of refrigerant
entering the Recycle Guard unit in a liquid state will increase recovery time. Optimum results occur when refrigerant is
being recovered while in the gas state. It is therefore recommended to connect Recycle Guard to vehicle ports which carry
refrigerant in a gaseous state - such as the Low Side and/or the High Side Gas ports.
Q. What happens if I install the Recycle Guard on the High Side?
A. The Recycle Guard still work if installed on the High Side. However, it will take more time to evaporate because the
refrigerant comes out of the High Side at more of a liquid state.
Q. Does Recycle Guard work on my R-12 unit?
A. The standard Recycle Guard Unit comes with ½ Acme fittings for R-134a service hoses. However, units with fittings for
R-12 service hoses can be special ordered from your supplier.
Q. How do I know this will work?
A. The Recycle Guard has been tested and validated by most recycling machine manufacturers.
Q. Does Recycle Guard void the warranty on my recovery machine?
A. As part of the validation process, recovery equipment manufacturers have certified that recycle guard does nothing that
would void the warranty on their equipment.
Q. Does the Recycle Guard slow down or affect the operation of my recovery station?
A. There may be a slight slowdown in the recovery process with certain machines. The recovery machine itself, the number
of completed recoveries on the filter, the ambient temperature, and other variables affect recovery time. We have not had
any complaints that Recycle Guard has significantly slowed the recovery process when the use instructions are followed
properly.
Q. What happens if the Recycle Guard clogs up? Does that harm my equipment?
A. The Recycle Guard does not stop working and will not harm your equipment. It will continue to recover refrigerant but at a
significantly slower rate.
Q. How does Recycle Guard connect to my recovery equipment?
A. You will need an extra a/c service hose with ½ Acme female fittings.
Q. How do I know how many Recycle Guards to use with my recovery machine?
A. The general rule to determine how many Recycle Guard units an A/C machine should have follows.
1. Machines with an external gauge set will generally require 1 RG.
2. Machines with built-in (internal) gauges should have 2. The red and blue service hoses on these machines connect
directly from the car to the machine with no gauge set between the machine and car.