Robinair 34134-2K User Manual
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Operating
M
anual
34134-2K—Refrigerant Recovery,
Recycling and Recharging Unit
for R-134a
34134-2K—Unidad de Recuperación,
Reciclado y Recarga para R-134a
(Page 21)
LISTED
SAFETY DEFINITIONS: Follow all WARNING, CAUTION, IMPORTANT, and NOTE messages in this manual. These
messages are defined as follows: WARNING means you may risk serious personal injury or death; CAUTION means
you may risk personal injury, property damage, or serious unit damage; IMPORTANT means you may risk unit damage;
and NOTEs provide clarity and helpful tips. These safety messages cover situations ROBINAIR is aware of. ROBINAIR
cannot know, evaluate, and advise you as to all possible hazards. You must make sure all conditions and procedures do
not jeopardize your personal safety.
COPYRIGHT: No part of this manual may be reproduced, stored in a retrieval system, or transmitted in any form or by
any means (electronic, mechanical, photocopy, recorded, or otherwise) without the prior written permission of ROBINAIR.
DISCLAIMER: All information, illustrations, and specifications contained in this manual are based on the latest
information available at the time of publication. The right is reserved to make changes at any time without obligation to
notify any person or organization of such revisions or changes. Further, ROBINAIR shall not be liable for errors contained
herein or for incidental or consequential damages (including lost profits) in connection with the furnishing, performance, or
use of this material. If necessary, obtain additional health and safety information from the appropriate government
agencies and the vehicle, refrigerant, and lubricant manufacturers.
Recycling Equipment Design
Certified by Underwriters
Laboratories Inc.® for
Compliance with SAE-J2210
(1991) for HFC-134a
80S2
Refrigerant Recovery,
Recycling and Recharging Station
Series: 34134-2K
Refrigerants: R-134a
WARNINGS
ALLOW ONLY QUALIFIED PERSONNEL TO OPERATE THE UNIT. Before operating the unit, read and follow
the instructions and warnings in this manual. The operator must be a certified technician and must be familiar with
air conditioning and refrigeration systems, refrigerants, and the dangers of pressurized components. If the
operator cannot read English, operating instructions and safety precautions must be read and discussed in the
operator’s native language.
Si el operador no puede leer el inglés, las instrucciones de operación y las precauciones de seguridad deberán
leerse y comentarse en el idioma nativo del operador.
Si l’utilisateur ne peut lire l’anglais, les instructions et les consignes de sécurité doivent lui être expliquées dans sa
langue maternelle.
PRESSURIZED TANK CONTAINS LIQUID REFRIGERANT. Do not overfill the internal storage vessel because
overfilling may cause explosion and serious personal injury or death. Do not recover or charge refrigerants into
non-refillable containers; use only federally authorized refillable containers.
ALL HOSES MAY CONTAIN LIQUID REFRIGERANT UNDER PRESSURE. Contact with refrigerant may cause
personal injury. Wear correct protective equipment, including safety goggles. Disconnect hoses with extreme
caution.
HIGH VOLTAGE ELECTRICITY INSIDE THE UNIT HAS A RISK OF ELECTRICAL SHOCK. Exposure may
cause personal injury. Refer to the instruction manual for correct procedure when disconnecting the power.
TO REDUCE THE RISK OF FIRE, do not use the unit in the vicinity of spilled or open containers of gasoline or
other flammable substances. An extension cord may overheat and cause fire. If an extension cord is needed, use
the shortest possible cord with a minimum size of No. 14 AWG.
DO NOT BREATH REFRIGERANT. Exposure may cause personal injury, especially to the eyes, nose, throat, and
lungs. Use this equipment in locations with mechanical ventilation that provides at least four air changes per hour
or locate the equipment at least 18 inches above the floor. If accidental system discharge occurs, ventilate the
work area before resuming service.
USE THE UNIT WITH ONLY R-134a REFRIGERANT. The unit is for recovering, recycling, and recharging only
R-134a refrigerant! Do not attempt to adapt the unit for another refrigerant. Do not mix refrigerant types through a
system or in the same container; mixing of refrigerants will cause severe damage to the unit and the vehicle air
conditioning system.
DO NOT USE COMPRESSED AIR TO PRESSURE TEST OR LEAK TEST THE UNIT OR VEHICLE 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 fire or explosion causing personal injury or property
damage.
Additional health and safety information may be obtained from refrigerant and lubricant manufacturers.
Table of Contents
Introduction ...........................................................................................................2
Glossary of Terms ........................................................................................... 2
Operating Tips ................................................................................................. 3
Using The Control Panel .................................................................................4
Component Location and Identification ........................................................... 5
Set-Up Instructions................................................................................................ 6
Installing the Tank ...........................................................................................6
Setting up the Unit ........................................................................................... 7
Adding Refrigerant to the Unit Tank ................................................................ 8
Operating Instructions ...........................................................................................9
Recovering Refrigerant ................................................................................... 9
English
Evacuating the A/C System ............................................................................ 9
Air Purge ....................................................................................................... 10
Recharging the A/C System .......................................................................... 10
Maintenance Instructions .................................................................................... 11
Checking and Calibrating the Scale ..............................................................11
Replacing the Filter-Drier .............................................................................. 12
Checking and Resetting Filter Capacity ........................................................ 13
Checking for Leaks ....................................................................................... 13
Choosing the Temperature Scale ................................................................. 13
Troubleshooting Tips........................................................................................... 14
Vacuum Flow Diagram ........................................................................................ 15
Recover Flow Diagram........................................................................................ 16
Charge Flow Diagram ......................................................................................... 17
Español
Replacement Parts.............................................................................................. 18
Limited Warranty .................................................................................................19
Pressure/Temperature Chart ..................................................... Inside Back Cover
34134-2K Recovery, Recycling and Recharging Unit
1
Introduction
This manual contains important safety procedures concerning the operation, use and maintenance of this product. Failure to follow the instructions
contained in this manual may result in serious injury. If you are unable to
understand any of the contents of this manual, please bring it to the
attention of your supervisor. Do not operate this equipment unless you have
read and understood the contents of this manual.
The 34134-2K Recovery, Recycling and Recharging unit is a one hook-up system
used for R-134a vehicles. This single-pass system is UL listed and meets the SAE
specifications for recycled refrigerant. It is also designed to be compatible with
existing service equipment and standard service procedures.
The 34134-2K is simple to operate and has many user-friendly features:
• Hose holder rack
• Large diameter wheels for easy relocation
• Plastic shroud that is resistant to abrasions and chemicals
• Handy manifold gauge set
GLOSSARY OF TERMS
A/C System The air conditioning system being serviced.
Unit The refrigerant recovery/recycling/recharging unit.
Unit Tank The refillable refrigerant tank included with this unit.
Source Tank A supply of refrigerant used to refill the unit tank.
2
© 2000 Robinair, SPX Corporation
Introduction
Low Side Gauge
Low Side Valve
(Blue)
Low Side Port
INST0488
OPERATING TIPS
Center Port
High Side Gauge
High Side Valve
(Red)
High Side Port
Follow the SAE-J2210 recommended service procedures for the containment
of R-134a.
R-134a systems require special oils in place of the mineral oil used with R-12
systems. Refer to the A/C system manufacturer’s service manuals for oil
specifications.
Change the filter-drier when the display shows “CHANGE FILTER.” Follow the
instructions for changing the filter-drier.
Wait 10 minutes between recovery jobs when temperatures exceed 120°F / 49°C.
CAUTION!
to avoid cross-contamination with R-12 systems. Do not attempt to adapt your
unit for another refrigerant type—system failure will result!
R-134a systems have special fittings (per SAE specifications)
34134-2K Recovery, Recycling and Recharging Unit
3
Introduction
USING THE CONTROL PANEL
The control panel has the following specific operating functions:
1. RECOVER/VACUUM Switch — Starts the recovery or vacuum process.
2. TARE Button — Zeros the display weight prior to recovery or charging.
3. LB/KG Button — Toggles between the weight measurement units.
4. CHARGE Button — Controls the charging process.
5. AIR PURGE Button — Controls the air purge process.
6. TEMPERATURE Display — Indicates tank temperature.
7. COMPRESSOR ON Light — Indicates compressor has started.
8. PRESSURE Gauge — Indicates the tank pressure.
9. CONTROL BOARD Display — Indicates refrigerant weight and error messages.
4
INST 0754
© 2000 Robinair, SPX Corporation
Introduction
COMPONENT LOCATION AND IDENTIFICATION
Rear ViewFront View
Power
Receptacle
Heater
Outlet
Heater
Circuit Breaker
Manifold valves
Access Port
Oil Drain Valve
Oil Drain Bottle
Scale Assembly
INST 0755
34134-2K Recovery, Recycling and Recharging Unit
INST 0756
5
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