Promax RG5410A-EXTREME, User'S Operating Manual, Page: 9 / 133

Advanced Test Products RG5410A-EXTREME
7
RG5410A-EXTREME REFRIGERANT RECOVERY
ADDITIONAL INFORMATION
To achieve the deepest final vacuum, use the tank cooling method to lower the head
pressure on the recovery tank. Repeat as necessary to achieve the desired vacuum
level.
NOTE: If there is no liquid in the recovery tank, then the cooling method will not work. In
this case, use an empty tank that has been fully evacuated to achieve the final vacuum
level required.
To maximize recovery rates use the shortest possible length of 3/8” or larger hose. A
hose no longer than 3’0” is recommend. Always remove all unnecessary hose core
depressors and Schrader valves from port connections (using the proper valve core
tool) for maximum throughput. Deformed rubber seals and core depressors in hoses
and faulty or unnecessary Schrader valves can restrict flow by up to 90%.
If the tank pressure exceeds 31,5 bar, use the tank cooling procedure to reduce the
tank pressure. When recovering large amounts of liquid, use the “PUSH/PULL” method
of recovery (see diagram below).
CAUTION: When using the “PUSH/PULL” method, you must use a scale to prevent
overfilling the storage tank. Once the “PUSH/PULL” siphon is started, it can continue
and overfill the storage tank even if the tank is equipped with a float level sensor. The
siphon can continue even when the machine is turned off. You must manually close the
valves on the tank and the unit to prevent overfilling the recovery tank.
SET-UP DIAGRAM FOR TANK PRE OR SUB COOLING
PROCEDURE
INPUT
OUTPUT
VAPOR LIQUID
To start you must have a minimum of
2,5 kg of liquid refrigerant in the tank.
Throttle the output valve so that the
output pressure is 7 bar (100 psi)
greater than the input pressure, but
never more than 31,5 bar (450 psi).
Run until the tank is cold.