Robinair RG3000 Refrigerant Recovery Machine - Manual (Page 9)

9
Type of Cylinder
Use only authorized, refillable, refrigerant storage
cylinders. Federal regulations require refrigerant
to be transported only in containers meeting DOT
specs. 4BW or 4BA.
NEVER use a standard disposable 30 lb.
(13.6 kg) cylinder (the type of container in which
new refrigerant is sold) to recover refrigerant.
Working Pressure
Recovery cylinders are designed for different
working pressures. PROMAX strongly recommends
the use of 400 psi (27.6 bar) cylinders.
WARNING: To prevent personal injury, do
not exceed the rated working pressure of the
cylinder. At minimum, the RG3000 requires the
use of a 350 psi (24.1 bar) recovery cylinder.
NOTE: The use of a 400 psi (27.6 bar) cylinder is
mandatory when recovering R-410A refrigerant.
Refer to the Parts and Accessories section of this
manual for more information.
If you expect temperatures in excess of 135º F
(57° C), consult the refrigerant supplier.
Capacity
Safety codes state that closed cylinders should
not be filled with liquid over 80% of volume. (The
remaining 20% is called head pressure room.)
Do not exceed 80% of cylinder capacity. PROMAX
recommends the use of the TIF9010A Refrigerant
Scale for monitoring cylinder capacity.
Refrigerants
Cylinders and filter / driers should each be
designated for only one type of refrigerant.
If you must use a cylinder previously used for
a different refrigerant, prepare the cylinder by
completely emptying it, perform an evacuation,
purge it using dry nitrogen, and then perform
another evacuation.
Storage
Store refrigerant cylinders in a cool, dry place.
Leakage
Some cylinders have valves that were not correctly
seated when manufactured. Keeping caps on the
valves will guard against refrigerant leakage.
WARNING : To prevent personal injury, never transport an overfilled cylinder.
Refrigerant expands when it gets warm and may cause an overfilled cylinder to explode.
Storage Cylinder Temperature 60°F 70°F 100°F 130°F 150°F
15.6°C 21.1°C 37.8°C 54.4°C 65.6°C
STARTING WITH CYLINDER
80% BY VOLUME
Space Occupied by Liquid 80% 81% 83% 90% 94%
STARTING WITH CYLINDER
90% BY VOLUME
Space Occupied by Liquid 90% 92% 96% 100%
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