Robinair RG3000 User Manual
Refrigerant Recovery Machine
by Robinair
®
®
RG3000
Operating Manual
Manuel d’utilisation
Manual de operaciones
Safety PrecautionS
WARNING : TO PREVENT PERSONAL INJURY AND / OR EQUIPMENT DAMAGE,
ALLOW ONLY QUALIFIED PERSONNEL TO OPERATE THIS UNIT. Before operating the unit,
read and follow the instructions and warnings in this manual. The operator must be familiar with air
conditioning and refrigeration systems, refrigerants, and the dangers of pressurized components. If
the operator cannot read this manual, operating instructions and safety precautions must be read and
discussed in the operator’s native language.
PRESSURIZED TANK CONTAINS LIQUID REFRIGERANT. Do not overll storage vessels, because
overfilling may cause explosion and personal injury or death. Do not recover refrigerants into
nonrellable containers; use only federally authorized rellable containers (DOT spec. 4BW or 4BA).
HOSES MAY CONTAIN LIQUID REFRIGERANT UNDER PRESSURE. Contact with refrigerant may
cause personal injury. Wear protective equipment, including safety goggles and protective gloves.
Disconnect hoses using extreme caution.
AVOID BREATHING A/C REFRIGERANT AND LUBRICANT VAPOR OR MIST. Exposure may
irritate eyes, nose, and throat. To remove refrigerant from the A/C systen, use only equipment certied
for the type of refrigerant being removed. Use the unit in locations with mechanical ventilation that
provides at least four air changes per hour. If accidental system discharge occurs, ventilate the work
area before resuming service.
TO REDUCE THE RISK OF FIRE, USE THE SHORTEST POSSIBLE EXTENSION CORD WITH A
MINIMUM SIZE OF 14 AWG. Using an undersized extension cord may result in electrical equipment
failure.
TO REDUCE THE RISK OF FIRE, do not use the unit in the vicinity of spilled or open containers of
gasoline or other ammable substances.
CAUTION – DO NOT PRESSURE TEST OR LEAK TEST EQUIPMENT OR VEHICLE AIR
CONDITIONING SYSTEMS WITH COMPRESSED AIR. Some mixtures of air and refrigerant have
been shown to be combustible at elevated pressures. These mixtures, if ignited, may cause injury or
property damage.
DO NOT MIX REFRIGERANT TYPES THROUGH A SYSTEM OR IN THE SAME CONTAINER.
Mixing of refrigerants causes severe damage to the unit and the system being serviced.
HIGH VOLTAGE ELECTRICITY INSIDE THE UNIT HAS A RISK OF ELECTRICAL SHOCK. Exposure
may cause personal injury. Disconnect power before servicing the unit.
Additional health and safety information may be obtained from
refrigerant and lubricant manufacturers.
Explanation of SafEty Signal WordS
WARNING : Indicates a potentially hazardous situation which, if not avoided, could result in death or
serious injury.
CAUTION : Indicates a potentially hazardous situation which, if not avoided, may result in minor or
moderate injury.
CAUTION : Used without the safety alert symbol indicates a potentially hazardous situation which, if not
avoided, may result in property damage.
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table of contentS
Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Explanation of Safety Signal Words . . . . . . . . . . . . . . . . . . . . . . . . .2
Understanding Refrigerant Recovery . . . . . . . . . . . . . . . . . . . . . . . . 4
Standard Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Recovery Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Operating Instructions for Bulk Liquid Systems . . . . . . . . . . . . . . . . . . . 7
Push – Pull Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Liquid Recovery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Vapor Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Purge Non-Condensable Gas from a Storage Cylinder . . . . . . . . . . . . . . .8
Recovery Cylinder Information. . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Replacement Parts, Rebuild Kits, & Accessories . . . . . . . . . . . . . . . . . 11
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Installation of the Filter and Filter / Drier . . . . . . . . . . . . . . . . . . 12
Burned-out System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Spanish
French
Warranty Statement . . . . . . . . . . . . . . . . . . . . . . . .Inside Back Cover
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underStanding refrigerant recovery
NOTE: Throughout this operating manual the term
“unit” is used when referring to the RG3000 refrigerant
recovery machine.
Refrigerant recovery is the process of taking refrigerant
out of a system and storing it in a cylinder. The following
information is critical to achieving the best refrigerant
recovery results.
Refrigerant
Identify the refrigerant type and quantity in the system to
be serviced.
The unit is approved for use with the following category
III, IV, and V refrigerants (per ARI-740) :
R-12, R-22, R-134a, R-401a, R-401b,R-401c, R-402a,
R-402b, R-404a, R-406a, R-407a, R-407b, R-407c,
R-407d, R-408a, R-409a, R-410a, R-411a, R-411b,
R-412a, R-500, R-502, R-507 R-509
Filters and Filter / Driers
CAUTION : Filters prevent contamination from
entering the unit, which reduces the risk of damage
to the unit and the system being serviced.
The unit is shipped with a lter screen installed behind
the inlet tting. Promax strongly recommends that a
clean lter screen be used for every service job. Failure
to use a lter screen will invalidate your warranty.
The unit is also shipped with (1) lter / drier (Part No.
100343) for use at the inlet tting. However, if there is a
need to recover multiple, different refrigerants using this
unit, a separate lter / drier must be labeled and used for
each individual type of refrigerant.
Valves
WARNING : To prevent personal injury, open
service and cylinder valves SLOWLY to allow
rapid shut-off of gas flow if necessary. Once it is
determined there is no danger, the valves may be
opened fully.
Isolate large amounts of refrigerant and close valves
after use, so if a leak should develop anywhere in the
system, refrigerant will not escape to the atmosphere.
Hoses
Hoses must be equipped with low-loss ttings and have
pressure ratings appropriate for the refrigerant in the
system being serviced.
Shut-off Switch
This unit has an internal, high-pressure, shut-off switch.
If system pressure rises above 550 psi, the unit shuts
off. The shut-off switch automatically resets itself after
pressure drops below 400 psi.
WARNING : The internal pressure shut-off
switch does NOT prevent cylinder overfill. If the
system shuts off automatically and is connected
to a cylinder, the cylinder may be dangerously
overfilled. Take immediate measures to relieve the
high pressure and / or cylinder overfill situation, or
personal injury may result.
Push / Pull Procedure
When recovering large amounts of liquid (over 15 lbs.),
use the Push / Pull method described in this manual.
Maximum Vacuum and Recovery Rates
To achieve the deepest nal vacuum, use an evacuated
recovery cylinder. To maximize recovery rates :
Use the shortest possible length of 3/8 in. or larger
•
hose. (A hose no longer than 3 feet is recommended.)
Remove unnecessary hose core depressors, and
•
remove Schrader valves from port connections.
Deformed rubber seals and core depressors in hoses,
as well as faulty or unnecessary Schrader valves, can
restrict ow.
Maintenance
CAUTION : Keep all connections to the refrigeration
system dry and clean. Damage will occur if moisture
is allowed to enter the system.
Storage Cylinders
WARNING : A storage cylinder is full when it
reaches 80% volume. DO NOT OVERFILL. Due to
liquid expansion, the cylinder could explode if filled
to more than 80% volume, possibly causing personal
injury and equipment damage. Use a scale, such as
TIF9010A, to avoid overfilling the storage cylinder.
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Standard oPerating inStructionS
Manifold
Gauge Set
System Being
Serviced
Vapor
Sight
Glass
Filter / Drier
Liquid
Scale
Inlet
Fitting
Outlet
Fitting
Liquid Port
Recovery
Cylinder
The following instructions are for a standard or
“common” recovery procedure.
Setup Procedure
1. Place the unit on a at, level surface.
2. Verify a clean lter screen is installed behind
the inlet tting.
3. Connect a hose from the outlet tting of the
unit to the liquid port on the recovery cylinder.
4. Connect a hose from the inlet tting of the unit
to the output port of a manifold gauge set.
Promax recommends using a sight glass and a
lter / drier in this line.
5. Connect a hose from the liquid (low pressure)
side of the manifold gauge set to the liquid side
of the system being serviced.
6. Connect a hose from the vapor (high) side of
the manifold gauge set to the vapor side of the
system being serviced.
7. Verify the inlet and outlet valves on the unit are
closed.
8. Place the recovery cylinder on a scale (such as
TIF9010A) to avoid overlling the cylinder.
WARNING : A storage cylinder is full when
it reaches 80% volume. DO NOT OVERFILL. Due
to liquid expansion, the cylinder could explode
if lled to more than 80% volume, possibly
causing personal injury and equipment damage.
Tech Tips
The unit will perform at its peak when voltage
entering the machine (while operating) is between
115 —122 VAC.
Lower supply voltages may result in difculty
starting under high head pressure, reduced
performance, and / or motor overheating.
Use an outlet that does not have other applicances
(such as lights, machines, etc.) plugged into it.
Do not use an extension cord unless needed. If
an extension cord is used, it must be 14 AWG
minimum and as short as possible to reduce
voltage drops.
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