Cornwell Tools RAC34288 Le manuel du propriétaire

Marque: Cornwell Tools

Modèle: RAC34288

Taper: Le manuel du propriétaire

Operating Manual for

Model 34288

Recovery, Recycling, Recharging Unit

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 unit damage; IMPORTANT means you may risk unit damage; and NOTEs and OPERATING TIPS provide

clarity and helpful information. These safety messages cover situations ROBINAIR is aware of. ROBINAIR cannot know, evaluate,

and advise you as to all possible hazards. You must verify that conditions and procedures do not jeopardize your personal safety.

DISCLAIMER: 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.

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 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.

– Si el operador no puede leer las instrucciones, 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 les instructions, 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 personal injury or death. Do not recover refrigerants into nonrefillable

containers; use only federally authorized refillable 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. 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 mechanical ventilation that

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

resuming service.

DO NOT USE AN EXTENSION CORD. An extension cord may overheat and cause fire. If you must use an

extension cord, use the shortest possible cord with a minimum size of 14 AWG.

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.

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.

USE THIS UNIT WITH R-134a REFRIGERANT ONLY. The unit is designed to recover, recycle, and recharge

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.

HIGH VOLTAGE ELECTRICITY INSIDE THE UNIT HAS A RISK OF ELECTRICAL SHOCK. Exposure may

cause personal injury. Disconnect the power before servicing the unit.

WARNINGS

Model 34288

Recovery, Recycling, & Recharging Unit

OPERATING NOTE: At temperatures exceeding 120° F / 49° C, wait 10 minutes between recovery jobs.

543175 Rev. B, October 18, 2007

Table of Contents

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Keypad Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Menu Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

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

Unpack the Accessory Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Power Up the Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Select a Language . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Select Operating Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Set Tank Fill Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Add Oil to the Vacuum Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Fill the Internal Storage Vessel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Recover Refrigerant from a Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Evacuate the A/C System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Recharge the A/C System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Electrical Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Manually Fill the Internal Storage Vessel (ISV) . . . . . . . . . . . . . . . . . . 12

Replace the Filter-Drier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Check Remaining Filter Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Change the Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Adjust Tank Fill Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Check for Leaks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Change Vacuum Pump Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Scale Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Tank Recertification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Spanish Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

French Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Inside Front Cover

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

IMPORTANT: To comply with federal law governing A/C system service, you must complete and

mail the MVAC Certification Form included in the accessory kit. Technicians using this equipment

must be certified under EPA Section 609 (Environmental Protection Agency). For more information,

read the MACS information included in the accessory kit, or visit the MACS website at www.macsw.org.

To validate the warranty provided by SPX Robinair, complete the warranty card included in the

accessory kit, and mail it within ten days from the purchase date of the unit.

Introduction

Robinair No. 34288 is used on R-134a vehicles and is designed to be compatible with existing service

equipment and standard service procedures. Model No. 34288 is a UL-listed, single-pass system that

meets SAE specifications for recycled refrigerant. Follow the SAE-J2211 recommended service

procedure for the containment of R-134a.

The unit includes a 1.5 cfm (42 l/m) Robinair high vacuum pump for fast, thorough evacuation. The

compressor pulls the A/C system to 0 psig, then works in series with the vacuum pump to achieve highly

efficient recovery and immediate recharge. If the system is not opened for service, there is no need to pull

additional vacuum. If the system is opened for service, use the unit’s vacuum cycle to remove air and

moisture from the A/C system. (We recommend a minimum 15-minute vacuum, or follow the vehicle

manufacturer’s specs.) Note: R-134a systems require special oils. Refer to the A/C system manufacturer’s

service manual for oil specifications.

Technical Specifications

Voltage . . . . . . . . . . . . . . . . . . . . . . . . . 115V, 60 Hz

Operating Range . . . . 50° to 120° F (11° to 49° C)

Filter-Drier . . . . . . . . . . . . . . .43 cu. in. spin-on type

Pump Free-Air Displacement

. . . 1.5 cfm (42 l/m)

Dimensions . . . . . . . . . . . . . 49" H x 34" W x 23" D

. . . . . . . . . . . . . . . . . (124.5 cm x 86.4 cm x 58.4 cm)

Digital Display: visual

interface between operator

and machine.

Main Power Switch: supplies

electrical power to unit.

Manifold Gauges:

connect to vehicle A/C system;

show system’s low-side and

high-side pressure.

Tool Storage Area

(additional storage

on back side for

extra filter-driers and

oil bottles).

Panel Valves:

direct system’s low-side

and high-side pressure.

Power Cord

543175 Rev. B, October 18, 2007

Introduction

Keypad Functions

START /

YES START / YES begins or resumes a

function, or answers a query.

STOP / NO terminates or pauses a

function, or answers a query.

MENU displays the selection menu.

ARROWS are used for scrolling

through menu items.

RECOVER activates the recovery

sequence.

VACUUM activates the vacuum

sequence.

CHARGE charges the vehicle A/C

system with a programmed amount of

refrigerant.

RECOVER

STOP /

VACUUM

CHARGE

Keypad

Glossary

A/C System : The vehicle air conditioning system being serviced.

Internal Storage Vessel : The refillable refrigerant storage vessel

designed specifically for this unit; 30 lb. (14 kg).

Source Tank : A disposable tank of new refrigerant used to refill

the internal storage vessel; not included.

Unit : Model No. 34288.

When the unit is not performing a function,

pressing the UP or DOWN arrow key

adjusts contrast on the digital display.

START /

YES STOP /

RECOVER

VACUUM

CHARGE

Menu Functions

1. Press the MENU button on the keypad.

2. Press the UP or DOWN arrow key to scroll

through the menu choices shown on the second

line of the display :

SELECT LANGUAGE

SERVICE MENU

CALIBRATION CHECK

ADJUST TANK FILL LVL

MANUAL REFILL

REFRIG MANAGEMENT

MAINTAIN FILTER

MAINTAIN VACUUM OIL

SELECT UNITS

VERSION X.XX

3. Press START / YES to make a choice from

the menu. Press STOP / NO to pause during

any process, and STOP / NO a second time to

exit a process.

Introduction

Menu Choice: Select Language

Operator may choose to have prompts displayed in one of

three languages: English, Spanish, or French.

Menu Choice: Service Menu

For Robinair service center use only.

Menu Choice: Calibration Check

Use to verify internal scale calibration. Refer to instructions

in Maintenance section under Scale Calibration Check.

Menu Choice: Adjust Tank Fill Lvl

During the tank refill process, the unit stops refilling when

it reaches the pre-set amount of refrigerant in the internal

storage vessel (default is 15 lbs.). This value may be

adjusted up or down to suit the user’s needs. Refer to

instructions outlined in the Maintenance section under

Adjust Tank Fill Level.

Menu Choice: Manual Refill

Use to transfer refrigerant from the source tank to the

internal storage vessel (ISV). Refer to instructions outlined

in the Maintenance section under Manually Fill the ISV.

Menu Choice: Refrig Management

Displays the amount of refrigerant recovered, charged,

and replenished (for the life of the unit), and filtered

(since the last filter change).

Menu Choice: Maintain Filter

The filter-drier removes acid, particulates, and moisture

from the refrigerant. To meet SAE J-2788 requirements,

it is mandatory to replace the filter-drier after 150 lbs.

(68 kg) of refrigerant has been filtered. This menu item

shows how much refrigerant has been filtered since the

last filter change, and allows the user to reset the value

once a filter change is complete. A code, which appears on

the filter, must be entered into the unit to ensure compliance

with SAE J-2788. Refer to the instructions outlined in the

Maintenance section under Replace the Filter-Drier.

Menu Choice: Maintain Vacuum Oil

For maximum vacuum pump performance, change

vacuum pump oil after every 10 hours of operation. This

menu item displays how long the vacuum pump has

operated since the last oil change, and allows the user to

reset the value once an oil change is complete. Refer to

the instructions outlined in the Maintenance section

under Change Vacuum Pump Oil.

Menu Choice: Select Units

The operator may choose to have test results displayed in

Imperial (lb.), Imperial (lb. and oz.), or Metric (kg).

Menu Choice: Version X.XX

Displays the revision level of the software in the unit.

Arrow

Keys

Start / Yes

Button Stop / No

Button

START /

YES STOP /

RECOVER

VACUUM

CHARGE

543175 Rev. B, October 18, 2007

Setup

Unpack the Accessory Kit

Unpack the accessory kit from the bag, and remove the

plastic packaging. The kit consists of

•Low-side tank adapter.

•Calibration weight.

•Vacuum pump oil, oil filler cap, and tube.

•Plastic pouch containing a warranty card (to be

completed and mailed), applicable MSDS sheets, a

service center listing, and an envelope of Mobile Air

Conditioning Society (MACS) information.

Important: You must complete and mail the

MVAC Certification Form, and your technicians

must be certified with the Environmental

Protection Agency (EPA) to operate this

equipment.

Power Up the Unit

1. Unwind the power cord from the handle, and plug it

into a correct voltage outlet. See Figure 1.

2. Turn on the main power switch. The first time the

unit is powered up, it displays the initial setup mode.

Select a Language – English

Seleccionar Idioma – Espanol

Selection Langue – Francais

The operator may choose to have prompts displayed in

one of three languages: English, Spanish, or French.

Use the UP or DOWN arrow key to toggle through

the choices for English, Spanish, or French.

Press START / YES to select the displayed language.

Select Operating Units

The operator may choose to have test results displayed

in Imperial (lb., or lb. and oz.) or Metric (kg) units.

1. Use the UP or DOWN arrow key to toggle through

choices for IMPERIAL UNITS or METRIC UNITS.

2. Press START / YES to select the displayed

operating unit choice.

IMPORTANT :

R-134a systems have

special fittings (per SAE specifications)

to avoid cross-contamination with R-12

systems. DO NOT adapt your unit for a

different refrigerant — system failure

will result.

Power

Cord

Main

Power Switch

Figure 1

Set Tank Fill Level

The operator may either accept the unit’s pre-set default

weight of 15 lbs. (6.8 kg) of refrigerant stored in the

internal storage vessel (ISV), or change the amount to

accommodate the application.

The unit displays

LEVEL: 15.00 LBS.

ENTER TANK FILL LVL

LIMIT: 4 TO 20 LBS.

PRESS START / YES TO SAVE

1. Press START / YES to accept the default amount,

or use the arrow keys to enter a desired amount and

press START / YES.

Add Oil to the Vacuum Pump

IMPORTANT: The vacuum pump is shipped

without oil in the reservoir. Failure to add oil to

the vacuum pump will damage the pump.

The unit displays

ADD 5 OZ OF NEW OIL

TO VACUUM PUMP

START TO CONTINUE

1. Remove the brass plug from the vacuum pump oil

fill port. See Figure 2.

Attach the flexible tube/cap to the oil bottle; pour

only five (5) ounces of vacuum pump oil into the fill

port. Note: You will top off the oil in the next step as

the vacuum pump is running.

3. Press and release the START / YES key. While the

vacuum pump is running, slowly add oil until the

level rises to the center of the reservoir’s sight glass.

4. Press the STOP / NO key to stop the vacuum pump,

and install the brass plug in the fill port.

5. Press START / YES to continue.

Setup

Figure 2

CAUTION: The unit is programmed

to run the setup procedure as outlined

here. To prevent personal injury, do

NOT operate the unit at any other time

without the brass plug installed,

because the vacuum pump is

pressurized during normal operation

Sight Glass

Fill Port

Sight

Glass

Fill Port

Vacuum Pump

543175 Rev. B, October 18, 2007

Setup

Fill the Internal Storage Vessel (ISV)

Press START / YES, and the unit automatically

runs a 5-minute vacuum to clear all internal air.

Note: The “burping” noise heard during this

process indicates air is being purged from the

system—this is normal.

2. After the vacuum pump shuts off, attach the

low-side tank adapter to the liquid valve on

the tank. Attach the low-side service hose to

this adapter. See Figure 3.

3. Open the source tank valve and the low-side

panel valve. See Figure 4.

4. Install the source tank, and secure it to the unit

(using the tank strap) in such a way that liquid

refrigerant is supplied to the connection.

5. Press START / YES to begin filling the

internal storage vessel. Add at least 8 lbs.

(3.6 kg) of refrigerant to ensure enough

refrigerant is available for charging.

This process takes 15–20 minutes. The unit

stops when a sufficient amount of refrigerant

has been transferred to the internal tank, or

when the source tank is empty.

Press STOP / NO to pause. Press STOP /

NO again to exit, or START / YES to

resume.

6. When the fill process is complete, press

STOP / NO to exit. The unit is ready for

operation.

Note: There is no need to calibrate the scale; it is

calibrated at the factory.

Figure 3

Power

Cord

Source

Tank

Strap

Low- and

High-Side

Hoses

Low- and

High-Side

Panel Valves

Figure 4

Hose

Storage

Fittings

Operating Instructions

Recover Refrigerant from a Vehicle

1. Empty the oil drain bottle located on the right-hand

side of the unit, if necessary, or make note of the

current oil level. See Figure 5.

2. Connect the high- and low-side hoses to the vehicle

A/C system.

3. Open the coupler valves on the hoses.

4. Open the high- and low-side panel valves on the

control panel.

5. Press the RECOVER button.

Note: The clicking noise heard during the recovery

process indicates the solenoid is opening and closing —

this is normal.

6. When the system has recovered to 0 psi, the vacuum

pump starts and runs until recovery is complete. The

unit then goes into an automatic oil drain—this may

require 90 seconds to complete.

7. After the oil drain is complete, the display shows

RECOVER COMPLETE

RECOVERED XX.XX LBS. (X.XX KG)

CHECK OIL BOTTLE

Note: The displayed recovered weight can vary,

depending on ambient conditions, and should not be

used as an indicator of scale accuracy.

8. Check the oil drain bottle, and note the amount of oil

that was removed from the A/C system. This is the

amount of new oil that must be charged into the A/C

system after evacuation is complete.

Dispose of used oil according to local, state, and

federal regulations.

Recovery is complete. You are now ready to either

advance to the charge process, or to make repairs to the

A/C system followed by the evacuation process.

Oil Drain

Bottle

Figure 5

Operating Tips

After the RECOVER function is selected :

•If system pressure is below 10 psi, the display

readsLOW RECOVER PRESSURE

CHECK CONNECTIONS

until pressure increases, or the START / YES

button is pressed. Verify the high- and low-side

hoses are connected and coupler valves are

open. Press STOP / NO to exit.

•If 100 lbs. (45 kg) or more of refrigerant has

been recovered since the last filter-drier change,

the display reads

FILTER WEIGHT XXX LB (XX KG)

To meet SAE J-2788 requirements, it is

mandatory to replace the filter-drier after

150 lbs. (68 kg) of refrigerant has been

filtered. The unit gives a warning to replace the

filter when filter weight reaches 100 lbs.; when

filter weight reaches 150 lbs., the unit locks

out and ceases to operate. Refer to

instructions outlined in the Maintenance section

under Replace the Filter-Drier.

•

If the unit has refrigerant in its low-side plumbing,

it begins a clearing process and displays

RECOVER IN PROGRESS

CLEARING

If you wish to skip the clearing operation,

or stop the clearing prematurely, press

START / YES.

543175 Rev. B, October 18, 2007

Evacuate the A/C System

1. Ensure service hoses are connected, and coupler

valves are OPEN.

2. Press VACUUM.

Press START / YES to accept the default evacuation

time of 10 minutes, or enter the desired vacuum time

using the number keys, and press START / YES.

IMPORTANT: The unit pulls a vacuum on the

vehicle A/C system to remove air and boil off

moisture that may be present in the system.

Evacuate the system for at least 10 minutes,

or follow the A/C system manufacturer’s

specifications, to ensure adequate moisture

and contaminant removal.

4. The unit evacuates the A/C system and stops when

the specified amount of time has elapsed.

Press STOP / NO to pause the process. Press

START / YES to resume, or STOP / NO again

to exit.

You are now ready to replenish the A/C system with

new oil, if necessary, or to recharge the system with

refrigerant.

Operating Instructions

Operating Tips

•If the vacuum pump has run for 10 or more

hours without an oil change, the unit displays

VACUUM OIL TIME XX:XX

CHANGE OIL NOW?

Refer to instructions outlined in the

Maintenance section under Change Vacuum

Pump Oil.

•Before the unit begins evacuating the A/C

system, it checks for any pressure in the

system that might damage the vacuum pump.

If pressure is detected, the unit displays

PRESSURE EXISTS

PRESS ANY KEY TO EXIT

Press any key to exit, and recover refrigerant

before proceeding.

Recharge the A/C System

Press CHARGE. Open the appropriate panel valve(s),

depending on where the system should be charged –

high-side, low-side, or both.

2. Press

CHARGE

again to change the units of

measure. Accept the default weight by pressing

START / YES, or use the arrow keys to scroll to the

correct amount, and press START / YES.

The display reads

CHARGE IN PROGRESS / DO NOT DISTURB

X.XX LBS. (X.XX KG)

Moving or bumping the unit at this point may result

in an incorrect reading.

Note:

•During a charge cycle, if the unit fails to transfer

refrigerant due to low tank pressure, the charge

process is automatically interrupted and the unit

operates in a mode to build tank pressure. Once tank

pressure is sufficient, the unit automatically

completes the charge.

•When the charge cycle gets close to the weight

entered in Step 2, the unit slows down. It’ll charge,

settle, charge again, settle, etc.

4. When the charge is complete, the display reads

CHARGED XXX LBS (KG)

PRESS START TO EQUALIZE HOSES

The user must equalize pressure in the service hoses

to ensure all liquid refrigerant trapped in the hoses is

transferred to the vehicle A/C system for an accurate

charge. Press START / YES to equalize hoses.

5. Close the high-side coupler valve. The display reads

DISCONNECT HS HOSE

OPEN PANEL VALVES

AND START A/C MAX

START TO CONTINUE

The high-side hose must be removed from the

vehicle, and the low-side hose must stay

connected to the vehicle with the low-side

coupler open.

Operating Instructions

Operating Tips

•After selecting the CHARGE function and

entering a desired weight, if the weight

entered will leave less than 3 lbs. (1.36 kg) of

refrigerant in the internal tank after charge,

the charge function will not start. The display

reads

INSUFFICIENT REFRIG.

PRESS ANY KEY TO EXIT

Refer to the Maintenance section of this

manual for instructions to Manually Refill the

Internal Storage Vessel (ISV).

•If the weight entered is more than the

refrigerant available in the internal tank, the

charge function will not start. The display

reads

INSUFFICIENT REFRIG.

PRESS ANY KEY TO EXIT

Refer to the Maintenance section of this

manual for instructions to Manually Refill the

Internal Storage Vessel (ISV).

543175 Rev. B, October 18, 2007

Operating Instructions

Recharge the A/C System contd.

6. Open both panel valves.

7. Place the vehicle gear selector in park or neutral,

with the emergency brake ON.

Start the vehicle. The A/C system should be set at

maximum.

9. Press START / YES. The display reads

EQUALIZING HOSES

REMOVE LS HOSE WHEN

HS + LS ARE < 40 PSI

PLEASE WAIT

This allows the vehicle’s compressor to pull

refrigerant into the A/C system. When both gauges

read below 40 psi, close both panel valves and the

low-side coupler valve. The display reads

DISCONNECT LOW SIDE HOSE

START TO CONTINUE

Close the low-side coupler valve. Remove the service

hoses from the A/C system.

IMPORTANT: If the low-side or high-side

coupler valves are left open, the system will

pull the refrigerant back out of the vehicle.

11.

Shut OFF the vehicle.

12.

Press

START / YES to begin clearing the hoses.

CLEARING HOSES

PLEASE WAIT

When the hoses are cleared, the display reads

CHARGE COMPLETE

CHARGED XX.XX LBS

ANY KEY EXITS

The A/C system is now ready for use.

WARNING: To prevent personal injury,

•

Verify the vehicle is in park or neutral

with the emergency brake ON before

starting the engine.

•

Never run a vehicle without adequate

ventilation in the work area.

Maintenance

General Maintenance

1. On a regular basis, wipe off the unit using a clean

cloth to remove grease and dirt.

Periodically check internal components for leaks; over

time, fittings can loosen as the unit is moved. Open the

door panel, and trace lines using a leak detector.

Check connections on the back of the unit. Tighten

any loose fittings or connections you may find.

Electrical Protection

The unit is equipped with a 15 amp circuit breaker on

the back panel. See Figure 6. If the breaker trips, its

button will pop out. A tripped circuit breaker will cause

the unit to lose all power.

Press the circuit breaker button to reset.

Manually Fill the

Internal Storage Vessel (ISV)

This menu item is used to transfer refrigerant from a

source tank to the internal storage vessel.

1. Press Menu, and use arrow keys to select MANUAL

REFILL. Press START / YES. The unit displays

CONNECT SOURCE TANK

TO LS SERVICE HOSE

OPEN LS PANEL VALVE

START TO BEGIN

2. Connect the low-side tank adapter to the liquid valve

on the tank. Connect the low-side service hose to this

tank adapter. Open the low-side panel valve.

3. Install the source tank, and secure it to the unit with

the source tank strap in such a way that liquid

refrigerant is supplied to the connection.

4. Press START / YES to begin. The display shows

TANK FILL IN PROGRESS

TRANSFER XX LBS

5. The unit automatically stops when the preset tank fill

level is reached, or press STOP / NO to exit.

Figure 7

Side View

Circuit

Breaker

Figure 6

Back View

MAIN POWER

BREAKER

Power

Cord

Source

Tank

Strap

Low- and

High-Side

Hoses

543175 Rev. B, October 18, 2007

Replace the Filter-Drier

The filter-drier is designed to trap acid and particulates,

and to remove water from refrigerant. To meet the

SAE J-2788 mandate for adequate moisture and

contaminant removal, the filter-drier must be replaced

after 150 lbs. (68 kg) of refrigerant has been filtered.

Therefore, you no longer have a choice—the

filter-drier must be replaced. The unit gives a

warning when 100 lbs. of the filter capacity has been

used; the unit locks down when the 150 lb. filter

capacity has been reached and will no longer

function. For this reason, always have a spare Robinair

No. 34724 filter-drier on hand.

Check Remaining Filter Capacity

1. Press MENU.

2. Use the arrow keys to scroll through the menu to

MAINTAIN FILTER, and press START / YES.

The unit displays

XXX LBS FILTERED

RECOVER LOCKOUT IN XXX LBS

REPLACE FILTER NOW?

PRESS STOP TO EXIT

3. Press STOP / NO to exit.

Change the Filter

1. Press MENU.

2. Use the arrow keys to scroll through the menu to

MAINTAIN FILTER, and press START / YES.

The unit displays

XXX LBS FILTERED

RECOVER LOCKOUT IN XXX LBS

REPLACE FILTER NOW?

PRESS STOP TO EXIT

3. Press START / YES to proceed.

4. If there is pressure in the filter, the unit begins a

clearing process. When complete, the display reads

ENTER 10 DIGIT SERIAL NUMBER. Use the

arrow keys to enter the serial number that appears on

the new filter-drier, and press START / YES.

Maintenance

IMPORTANT: Use only authentic Robinair

No. 34724 filter-driers in this machine.

All performance tests and claims are

based on using this specific filter-drier.

And only the Robinair No. 34724 filter-

drier includes the code necessary to

make the unit operable again.

Enter the Serial No. for a New Filter-Drier

Use an arrow key to change the selected digit to

the corresponding number or letter in the serial

number. When the correct letter or number is

displayed, press START / YES to select it and

move to the next digit. Repeat this process until

the entire serial number has been entered, and

press START / YES.

Operating Tips

5. The display reads PLEASE REPLACE FILTER.

Open the rear door of the unit and unscrew the old

filter. See Figure 8.

Look at the new filter—verify both o-rings are

lubricated and correctly located in the grooves. See

Figure 9. Thread the new filter into place. Press

START / YES.

Note: If the display shows SERIAL NUMBER ERROR,

the serial number is invalid or the filter-drier has

already been used in this unit.

7. Close the door. Press STOP / NO to exit. The filter-

drier replacement is now complete.

Replace the Filter-Drier contd.

Maintenance

Filter-Drier

Rear View

(without shroud)

Adjust Tank Fill Level

When connected to a refrigerant source, the unit

maintains a default value of 15 lbs. of refrigerant in the

internal storage vessel. This value may be adjusted up

or down to suit the application.

1. Press MENU.

2. Use the arrow keys to scroll through the menu to

ADJUST TANK FILL LVL, and press START /

YES. The unit displays

LEVEL: 15.00 LBS.

ENTER TANK FILL LVL

LIMIT: 4 TO 20 LBS.

PRESS START / YES TO SAVE

3. Use the arrow keys to enter a value between 4 lbs.

and 20 lbs., and press START / YES.

Figure 8

O-rings

Figure 9

Check for Leaks

Check the unit for leaks every three months, or as

specified by law in your jurisdiction.

1. Turn off MAIN POWER, and disconnect the power

cord from the outlet.

Open the rear door; remove top cover and front panel.

Use a leak detector to probe all connections for

refrigerant leaks. Tighten fittings if a leak is indicated.

4. Reassemble the body panels, and close the rear door.

Inspect the unit periodically for leaks.

The manufacturer does not reimburse

for lost refrigerant.

543175 Rev. B, October 18, 2007

Change Vacuum Pump Oil

For maximum vacuum pump performance, change the

vacuum pump oil after every 10 hours of operation. (The

unit will display a prompt after 10 hours of operation.)

1. Press MENU. Use the arrow keys to select

MAINTAIN VACUUM OIL, and press START /

YES. The display shows how long the vacuum pump

has operated since the last oil change:

PUMP OIL TIME X:XX

TIME REMAINING X:XX

CHANGE OIL?

2. Press START / YES. The display shows VACUUM

OIL CHANGE TIME 2:00, and counts down to zero.

Allow the vacuum pump to run until it automatically

stops. The display then shows DRAIN OLD OIL

AND ADD 5 OZ NEW OIL.

3. Refer to Figure 10, and remove the brass plug from

the vacuum pump’s oil fill port. (The pump drains

faster when vented.)

Remove the oil drain fitting cap, and drain the oil into

a suitable container for disposal. Replace the cap.

Attach the flexible tube and cap to the oil bottle; pour

five (5) ounces of vacuum pump oil into the fill port.

6. Press START / YES. The display shows FILL

PUMP TO CENTER OF SIGHT GLASS, and the

vacuum pump starts. While the vacuum pump is

running, slowly add oil until the level rises to the

center of the reservoir’s sight glass.

7. Press STOP / NO. The counter resets to zero after a

vacuum pump oil change has been completed.

8. Replace the brass plug on the fill port. Press STOP /

NO to exit to the Main Menu.

CAUTION: To prevent personal injury, do

NOT operate the unit at any time without the

brass plug installed, because the vacuum

pump is pressurized during normal operation.

Review the laws in your jurisdiction to

determine the correct disposal

procedure for pump oil. It is the

responsibility of the user to determine

if a material is a hazardous waste at

the time of disposal. Ensure you are in

compliance with all applicable laws

and regulations.

Maintenance

Oil Drain Fitting

Oil Fill Port

Sight Glass

Figure 10

Repl.

Component Part No.

Filter-Drier 34724

Service Coupler Set

(high- and low-side couplers) 18192

Service Hose Set

(high- and low-side hoses) 34722

Vacuum Pump Oil

(case of 12 quarts) 13203

Vacuum Pump Oil

(case of 4 gallons) 13204

Maintenance Kit 13172

Vinyl Dust Cover (optional) 17492

Replacement Parts

Maintenance

Scale Calibration

The calibration check is used to ensure the unit’s internal

scale is always calibrated. During this test, use only the

calibration weight that is provided with the unit.

1. Press Menu.

2. Use the arrow keys to scroll to CALIBRATION

CHECK.

3. Refer to Figure 11, and verify the magnet on the

bottom of the unit is clean. Press START / YES.

4. The display reads

ATTACH THE WEIGHT TO THE BOTTOM OF THE

MACHINE

PRESS START TO CONTINUE

5. Attach the weight provided to the magnet on the

bottom of the unit. Press START / YES.

Magnet

•If the display shows CALIBRATION APPROVED, the scale is in calibration. Press any key to exit.

•If the display shows CALIBRATION REJECT, the scale is out of calibration. Call your local service

center for assistance.

•If the display shows CALIBRATION ERROR 1, verify the calibration weight is correctly attached to

the magnet, and verify the magnet is clean with nothing attached to it. If that does not correct the

problem, call your local service center for assistance.

Tank Recertification

The internal storage vessel (ISV) in this unit is a DOT-

approved tank that carries a date code. ISVs must be

recertified every five years.

To determine the date code of the ISV in your Robinair

unit, remove the front panel of the unit. It should be

possible to read the date code stamped on the ISV.

If the date code reads beyond the five-year limit, contact

a Robinair service center for assistance.

Rev. November 1, 2005

This product is warranted to be free from

defects in workmanship, materials, and

components for a period of one year from date

of purchase. All parts and labor required to

repair defective products covered under the

warranty will be at no charge. The following

restrictions apply:

1. The limited warranty applies to the original

purchaser only.

2. The warranty applies to the product in

normal usage situations only, as described

in the Operating Manual. The product must

be serviced and maintained as specified.

3. If the product fails, it will be repaired or

replaced at the option of the manufacturer.

4. Transportation charges for warranty service

will be reimbursed by the factory upon

verification of the warranty claim and

submission of a freight bill for normal

ground service. Approval from the

manufacturer must be obtained prior to

shipping to an authorized service center.

5. Warranty service claims are subject to

authorized inspection for product defect(s).

6. The manufacturer shall not be responsible

for any additional costs associated with a

product failure including, but not limited to,

loss of work time, loss of refrigerant, cross-

contamination of refrigerant, and unautho-

rized shipping and/or labor charges.

7. All warranty service claims must be made

within the specified warranty period. Proof-

of-purchase date must be supplied to the

manufacturer.

8. Use of recovery/recycling equipment with

unauthorized refrigerants or sealants will

void warranty.

•Authorized refrigerants are listed on the

equipment or are available through the

Technical Service Department.

•The manufacturer prohibits the use of

the recovery/recycling equipment on air

conditioning (A/C) systems containing

leak sealants, either of a seal-swelling or

aerobic nature.

This Limited Warranty

does NOT apply if:

•The product, or product part, is broken by

accident.

•The product is misused, tampered with, or

modified.

•The product is used for recovering or

recycling any substance other than the

specified refrigerant type. This includes, but

is not limited to, materials and chemicals

used to seal leaks in A/C systems.

Robinair

Limited Warranty Statement Declaración de garantía

limitada Robinair

Revisión del 1 de noviembre de 2005

Se garantiza que este producto no posee

defectos de mano de obra, materiales y

componentes por el período de un año a partir

de la fecha de compra. Todas las partes y mano

de obra requerida para reparar los productos

con defecto cubiertos bajo la garantía no

tendrán costo. Aplican las siguientes

restricciones:

1. La garantía limitada aplica al comprador

original únicamente.

2. La garantía aplica al producto en

situaciones de uso normal únicamente,

como lo indica el Manual de

funcionamiento. Al producto se le debe dar

servicio y mantenimiento como se

especifica.

3. Si falla el producto, se debe reparar o

reemplazar a discreción del fabricante.

4. Los cargos de transporte de servicio de

garantía serán reembolsados por la fábrica

al verificar el reclamo de garantía y

presentar una boleta de flete por servicio

terrestre regular. Se debe obtener la

aprobación del fabricante antes de hacer el

envío a un centro de servicio autorizado.

5. Los reclamos de servicio de garantía están

sujetos a inspección de defectos del

producto.

6. El fabricante no será responsable de los

costos adicionales relacionados con fallas

en el producto, que incluyen pero no se

limitan a, tiempo improductivo, pérdida de

refrigerante, contaminación de refrigerante

y envío no autorizado o cargos por mano de

obra.

7. Todo reclamo de servicio de garantía se

debe hacer dentro del período de garantía

establecido. Se debe proporcionar la fecha

de la prueba de compra al fabricante.

8. El uso de equipo de recuperación/reciclaje

con refrigerantes o selladores no

autorizados anula la garantía.

•Los refrigerantes autorizados se indican

en el equipo o están disponibles a través

del Departamento de servicio técnico.

•El fabricante prohíbe el uso de equipo de

recuperación/reciclaje en sistemas de

aire acondicionado (A/C) con fugas de

sellador, ya sea porque un sello se infla

o es de naturaleza aeróbica.

Esta garantía limitada NO aplica si:

•El producto, o parte de éste, se rompe

accidentalmente.

•El producto se usa incorrectamente, se

adultera o modifica.

•El producto se usa para recuperar o reciclar

cualquier sustancia que sea diferente al tipo

de refrigerante establecido. Esto incluye,

pero no se limita a materiales y productos

químicos utilizados para sellar fugas en

sistemas de A/C.

Énoncé de la garantie limitée

de Robinair

Révisée le 1er novembre 2005

Ce produit est couvert contre les défauts de

matériau, de fabrication et de composant

pendant un an à compter de la date d’achat.

Toutes les pièces et la main-d’œuvre

nécessaires aux réparations sous garantie sont

sans frais. Toutefois, les restrictions suivantes

s’appliquent :

1. La garantie limitée s’applique uniquement à

l’acheteur initial.

2. La garantie s’applique uniquement au

produit utilisé dans des conditions de

fonctionnement normales conformément au

manuel d’utilisation. Il doit être réparé et

entretenu conformément aux spécifications.

Si le produit subit une défaillance, il sera

réparé ou remplacé à la discrétion du fabricant.

4. Les frais de transport pour les réparations

sous garantie sont remboursés par l’usine

après l’évaluation de la réclamation au titre

de la garantie et après la soumission d’une

facture de transport terrestre standard.

L’approbation du fabricant est requise avant

l’expédition du produit à un atelier de

réparation autorisé.

5. Les réclamations au titre de la garantie sont

sujettes à l’inspection du produit défectueux

par un personnel autorisé.

Le fabricant ne peut être tenu responsable pour

tout coût supplémentaire lié à la défaillance du

produit incluant, sans toutefois s’y limiter, les

interruptions de fonctionnement, la perte de

liquide frigorigène, la contamination des

liquides frigorigènes et l’expédition et/ou les

frais de main-d’œuvre soumis par des ateliers

non autorisés.

7. Toute réclamation pour des réparations au

titre de la garantie doit être soumise durant

la période de garantie. Une preuve d’achat

doit être fournie au fabricant.

L’utilisation d’un appareil de récupération et

de recyclage avec du liquide frigorigène ou

des scellants non spécifiés annule la garantie.

•

Les liquides frigorigènes autorisés sont

indiqués sur l’appareil, ou ils peuvent

être obtenus auprès du Service technique.

•

Le fabricant interdit l’utilisation d’un

appareil de récupération et de recyclage

dans les systèmes de climatisation contenant

des colmatants pour fuites, que ce soient des

scellants à dilatation ou aérobiques.

Cette garantie limitée NE s’applique

PAS si le produit :

•ou une partie du produit a été endommagé

par un accident.

•a été utilisé de façon inadéquate, ou qu’il a

été altéré ou modifié.

•est utilisé pour la récupération et le

recyclage de substances autres que le type

de liquide frigorigène spécifié. Ces

substances comprennent, sans toutefois s’y

limiter, les matériaux et les produits

chimiques utilisés pour colmater les fuites

des systèmes de climatisation.

Visit our web site at www.robinair.com or call our toll-free

Technical Support Line at 800-822-5561

in the continental U.S. or Canada.

In all other locations, contact your local distributor. To help us serve you better, please be prepared to provide

the model number, serial number, and date of purchase of your unit.To validate your warranty, complete the

warranty card attached to the unit, and return it within ten days from date of purchase.

NATIONWIDE NETWORK OF AUTHORIZED SERVICE CENTERS

If your unit needs repair or replacement parts, contact the service center in your area. For help in locating a

service center, call the toll-free technical support line or visit www.robinair.com.

Visite nuestro sitio web en www.robinair.com o llame sin costo a

la línea de Asistencia técnica al 800-822-5561

en EE.UU. continental o Canadá.

En todas las demás ubicaciones, comuníquese con su distribuidor local. Para ayudarnos a servirle mejor, tenga a mano el

número de modelo, número de serie y fecha de compra de su unidad. Para validar la garantía, complete la tarjeta de

garantía anexa a su unidad y devuélvala dentro de los diez días siguientes a la fecha de compra.

RED NACIONAL DE CENTROS DE SERVICIO AUTORIZADOS

Si su unidad necesita reparaciones o partes de reemplazo, comuníquese con el centro de servicio de su área. Para

obtener ayuda para ubicar un centro de servicio, llame sin costo a la línea de asistencia técnica o visite www.robinair.com.

Visitez notre site Web à www.robinair.com ou appelez sans frais

le soutien technique au 800-822-5561

sur le territoire continental des États-Unis ou au Canada.

Pour tout autre endroit, communiquez avec votre distributeur local. Afin de nous aider à mieux vous servir, soyez prêt à

nous donner le numéro de modèle, le numéro de série et la date de l’achat de votre unité. Afin de valider votre garantie,

remplissez la carte de garantie jointe à votre système et retournez-la dans les dix jours de la date d’achat.

RÉSEAU NATIONAL DES CENTRES DE SERVICE AUTORISÉS

Si votre unité a besoin d’être réparée ou à besoin de pièces de remplacement, communiquez avec le centre de service de

votre région. Pour vous aider à localiser un centre de service, appelez sans frais la ligne de soutien technique ou visitez le

www.robinair.com.

The Robinair 34288 unit is designed to meet all applicable agency certifications, including Underwriter's Laboratories, Inc., SAE

Standards, and CUL. Certain state and local jurisdictions dictate that using this equipment to sell refrigerant by weight may not be

permitted. We recommend charging for any A/C service by the job performed. This weight scale provides a means of metering the

amount of refrigerant needed for optimum A/C system performance as recommended by OEM manufacturers

La unidad Robinair 34288 está diseñada para cumplir con todas las certificaciones de agencia aplicables, incluyendo

Underwriter’s Laboratories, Inc., Estándares SAE y CUL. Ciertas jurisdicciones estatales y locales prescriben que el uso de este

equipo para vender refrigerante por peso es posible que no sea permitido. Recomendamos que se cobre el trabajo realizado por

dar servicio al aire acondicionado. Esta escala de peso proporciona un medio para medir la cantidad de refrigerante que se

necesita para el rendimiento óptimo del sistema de aire acondicionado, tal como lo recomiendan los fabricantes OEM.

Le modèle 34288 a été conçu pour répondre aux certifications applicables de la Underwriter’s Laboratories, Inc., aux normes SAE

et CUL. Certains endroits dictent l’utilisation de cet équipement et il peut arriver que la vente de fluide frigorigène en fonction du

poids puisse être interdite. Nous vous recommandons de facturer les services de climatisation en fonction du travail effectué. Ce

poids de tarification permet de calculer la quantité de fluide frigorigène nécessaire pour un rendement optimum de la climatisation,

tel qu’il est recommandé par les fabricants de l’équipement d’origine.

Due to ongoing product improvements, we reserve the right to change design, specifications, and materials without notice.

Debido a las constantes mejoras del producto, nos reservamos el derecho de cambiar diseño, especificaciones y materiales sin aviso.

En raison des améliorations constantes apportées à nos produits, nous nous réservons le droit de changer de concept, de spécifications et de matériaux sans préavis.

SPX Corporation

655 Eisenhower Drive

Owatonna, MN 55060-0995 USA

Tech Services: 1-800-822-5561

Fax: 1-412-690-2001

Customer Service: 1-800-533-6127

Fax: 1-800-322-2890

Web site: www.robinair.com

Cornwell Tools RAC34288 Le manuel du propriétaire

Marque: Cornwell Tools

Modèle: RAC34288

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