How To Put Freon in RV Air Conditioner
An air conditioner in a RV uses refrigerant to chill air passing over an evaporator coil.
RV Air conditioning systems with low refrigerant levels need to have refrigerant added to operate at maximum efficiency.
Systems that still have some refrigerant in them can have the refrigerant level topped-off, while systems in need of recharging have leaked out all of their refrigerant.
Freon, DuPont's brand name for some types of refrigerant, has become the generic term for most types of refrigerant.
How to Put Freon in RV Air Conditioner
Identify correct refrigerant type as marked on air conditioning unit's specification tag
Identify the correct refrigerant type as marked on the air conditioning unit's specification tag. Use only the type of refrigerant labeled.
Remove air conditioner's cover
Remove the air conditioner's cover. They usually have four to six bolts found along a rib near the RV's roof. Use the correct size socket to remove the bolts. Lift the cover straight up to avoid damaging the condensing coil.
Remove RV air conditioner's refrigerant service port cap on suction side with an adjustable wrench
Remove the RV air conditioner's refrigerant service port cap on the suction side with an adjustable wrench.
The suction side has the large copper tube running from the compressor down into the RV, which eventually goes to the evaporator coil.
The smaller copper tube runs from the compressor to the exposed condensing coil.
Connect the suction side hose on a set of refrigeration manifold gauges to the service port.
The hose will screw onto the service port and release a needle valve in the port.
The suction side gauge, found on the left, has pressure and temperature readings for several different types of refrigerants.
Connect a bottle of the correct refrigerant to the middle hose on the refrigerant gauges.
Open the bottle's valve.
Purge the middle hose by quickly opening and closing the right hand valve on the manifold.
Connect the suction side hose on a set of refrigeration manifold gauges to the service port.
The hose will screw onto the service port and release a needle valve in the port.
The suction side gauge, found on the left, has pressure and temperature readings for several different types of refrigerants.
Connect a bottle of the correct refrigerant to the middle hose on the refrigerant gauges.
Open the bottle's valve.
Purge the middle hose by quickly opening and closing the right hand valve on the manifold.