Promax RG6000 Operating Manual

Refrigerant Recovery Machine

TM

RG6000

Operating Manual

Manuel d’utilisation
Bedienungsanleitung
Manual de operaciones

1

Sa f e t y Pr e c a u t i o n S

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 overll storage vessels, because
overlling may cause explosion and personal injury or death. Do not recover refrigerants into nonrell­able containers; use only federally authorized rellable 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.

DO NOT BREATHE REFRIGERANT AND LUBRICANT VAPOR OR MIST. Exposure may cause
personal injury, especially to the eyes, nose, throat, and lungs. Use the unit in locations with mechani-

cal ventilation that provides at least four air changes per hour. If accidental system discharge occurs,
ventilate the work area before resuming service.

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.

DO NOT USE COMPRESSED AIR TO PRESSURE TEST OR LEAK TEST THE UNIT OR AIR
CONDITIONING SYSTEM. Some mixtures of air and R-134a refrigerant are combustible at elevated

pressures. These mixtures are potentially dangerous and may result in re or explosion causing per­sonal injury or property damage.

DO NOT MIX REFRIGERANT TYPES THROUGH A SYSTEM OR IN THE SAME CONTAINER. Mix-
ing of refrigerants will cause 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.

Ex p l a n a t i o n o f Sa f E t y Si g n a l Wo r d S

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.

2

ta b l e o f co n t e n t S

Understanding Refrigerant Recovery . . . . . . . . . . . . . . . . . . . . . . . .4

Standard Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Recovery Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Purge the RG6000 Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . 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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Rebuild Kits and Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Installation of the Filter and Filter / Drier . . . . . . . . . . . . . . . . . . 13

Burned-out System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Explanation of Safety Signal Words . . . . . . . . . . . . . . . . . . . . . . . . .2

Warranty Statement . . . . . . . . . . . . . . . . . . . . . . . .Inside Back Cover

3

un d e r S t a n d i n g re f r i g e r a n t re c o v e r y

Refrigerant recovery is the processs 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 RG6000 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 RG6000 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.

Promax also strongly recommends using a lter / drier
(part no. 100343; not provided) at the inlet tting. Each
in-line lter / drier must be labeled and used for only one

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.

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 the TIF9010A, to avoid overfilling the storage
cylinder.

Promax recommends using the optional 80% Capacity
Shutoff Kit (p/n SK-5001) with this unit. After the kit is

installed and used with a recovery cylinder having an

internal oat switch, the unit automatically shuts down
when the cylinder is 80% full. (Your unit is pre-wired at
the factory for this kit.)

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" 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.

If you are certain the refrigerant in the system being

•

serviced is clean or new, the lter screen may be
removed from the inlet tting.

Purge the RG6000 during the end of the vapor

•

recovery phase, especially when recovering large
amounts of vapor. Purge again after the recovery
process is complete and the desired vacuum has been

achieved. Refer to “Purge the RG6000 Unit” at the end

of the Standard Operating Instructions section.

Maintenance

CAUTION :
system dry and clean. Damage will occur if moisture
is allowed to enter the system.

Keep all connections to the refrigeration

4

St a n d a r d oP e r a t i n g in S t r u c t i o n S

Sight

Glass

Manifold

Gauge Set

System Being

Serviced

Liquid

Vapor

The following instructions are for a standard or

“common” recovery procedure.

Setup Procedure

1. Place the RG6000 unit on a at, level surface.

2. Verify a clean lter screen is installed behind
the inlet tting.

Inlet

Fitting

Filter / Drier

Scale

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.

Recovery

Cylinder

Outlet

Fitting

Liquid Port

Float Switch

Connection

(RG6000-KT only)

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.

RG6000-KT only: Attach tank connection

harness (No. 549977) to oat switch

connection on the recovery cylinder.

7. Verify the inlet and outlet valves on the

RG6000 unit are closed.

8. Place the recovery cylinder on a scale (such as
TIF9010A) to avoid overlling the cylinder.

Tech Tips

The RG6000 will perform at its peak when voltage
entering the machine (while operating) is between
115V AC and 122V AC. Lower supply voltages
may result in difculty 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.

5