Robinair AC1234-3, AC1234-3P Original Instructions Manual
Original Instructions
Original-Betriebsanleitung
Istruzioni originali
Instrucciones originales
Instruções Originais
Consignes originales
Model AC1234-3
Model AC1234-3P
Recover, Recycle, Recharge Machine
for R1234yf A/C Systems
Description: Recover, recycle, and recharge machine for use
with R1234yf equipped air conditioning systems.
PRODUCT INFORMATION
Record the serial number and year of manufacture of this unit for future reference. Refer to the
product identication label on the unit for information.
AC1234-3(P)
Serial Number: _______________________________Year of Manufacture: ____________
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.
Table of Contents
Safety Precautions ...........................................2
Introduction
Technical Specifications.....................................5
Features of the AC1234-3(P). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Control Panel Functions.....................................7
Setup Menu Functions......................................7
Initial Setup
Unpack the Machine .......................................9
Unpack the Accessory Kit ...................................9
Power Up the Machine......................................9
Select Language .........................................10
Select Units .............................................10
Set Date and Time........................................10
Edit Print Header .........................................10
Service Vacuum..........................................11
Tank Fill ................................................11
Unit Activation ...........................................13
Operating Instructions
Enter Service Data........................................14
Recover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Vacuum ................................................17
Flush Hoses.............................................18
Charge .................................................19
Automatic...............................................20
System Flush ............................................21
Maintenance
Schedule ...............................................23
Electrical Protection .......................................24
Lockout / Tag Out.........................................24
Load Language ..........................................24
Tank Fill ................................................25
Filter Maintenance ........................................26
Calibration Check ........................................28
Change Vacuum Pump Oil..................................29
Leak Check .............................................30
Oil Inject Adjust ..........................................31
Edit Print Header .........................................32
Replace Printer Paper .....................................32
Install a Printer...........................................33
Replacement Parts ..........................................34
Glossary ..................................................34
Troubleshooting Messages ...................................35
Storage and Transportation of Equipment.......................39
Disposal of Equipment.......................................40
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1
Safety Precautions
Explanation of Safety Signal Words Used in this Manual
The safety signal word designates the degree, or level, of hazard seriousness.
DANGER: Indicates an imminently hazardous situation which, if not avoided, will result in death or
serious injury.
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.
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.
Explanation of Safety Decals Used on the AC1234-3(P)
Carefully read the instructions.
Do not use in open air in case of rain or high humidity.
Wear gloves.
Wear protection goggles.
Alternating voltage.
Grounding protection.
Electrical shock hazard.
2
Safety Precautions
WARNING : To prevent personal injury,
ALLOW ONLY QUALIFIED PERSONNEL TO OPERATE THE MACHINE. Before operating the machine,
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.
USE THE AC1234-3(P) AS OUTLINED IN THIS MANUAL. Using the machine in a manner for which it was
not designed will compromise the machine and nullify the protections provided.
PRESSURIZED TANK CONTAINS LIQUID REFRIGERANT. Do not overfill the internal storage vessel (ISV),
because overfilling may cause explosion resulting in personal injury or death. Do not recover refrigerants
into nonrefillable containers; use only type-approved refillable containers that have pressure relief valves.
HOSES MAY CONTAIN LIQUID REFRIGERANT UNDER PRESSURE. Contact with refrigerant may
cause personal injury, including blindness and frozen skin. Wear protective equipment, including
goggles and gloves. Disconnect hoses using extreme caution. Ensure the phase has been completed
before disconnecting the machine to prevent the release of refrigeration to the atmosphere.
DO NOT BREATHE REFRIGERANT AND LUBRICANT VAPOR OR MIST. R1234yf reduces the oxygen
available for breathing, resulting in drowsiness and dizziness. Exposure to high concentrations of R1234yf
causes asphyxiation, injury to the eyes, nose, throat, and lungs, and can affect the central nervous system.
Use the machine in locations with mechanical ventilation that provides at least one air change per hour. If
accidental system discharge occurs, ventilate the work area before resuming service.
DO NOT DISPERSE REFRIGERANT INTO THE ENVIRONMENT. Such a precaution is necessary to prevent
the possible presence of refrigerant in the working environment.
TO REDUCE THE RISK OF FIRE, do not use the machine in the vicinity of spilled or open containers of
gasoline or other flammable substances.
TO REDUCE THE RISK OF FIRE, 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 machine in the vicinity of flames and hot surfaces.
Refrigerant can decompose at high temperatures and can free toxic substances to the environment which
can be noxious to the user.
TO REDUCE THE RISK OF FIRE, do not use the machine in environments containing explosive gases or
vapors.
TO REDUCE THE RISK OF FIRE, do not use this machine in ATEX classified zones or areas. Protect the
machine from conditions that may cause electrical failure or other hazards relating to ambient interaction.
DO NOT USE COMPRESSED AIR TO PRESSURE TEST OR LEAK TEST THE MACHINE OR VEHICLE
AIR CONDITIONING SYSTEM. Mixtures of air and R1234yf refrigerant can be combustible at elevated
pressures. These mixtures are potentially dangerous and may result in fire or explosion causing personal
injury and / or property damage.
HIGH VOLTAGE ELECTRICITY INSIDE THE MACHINE HAS A RISK OF ELECTRICAL SHOCK. Exposure
may cause personal injury. Disconnect the power before servicing the machine.
NEVER LEAVE THE MACHINE LIVE IF AN IMMEDIATE USE IS NOT SCHEDULED. Disconnect the
electrical supply before a long period of inactivity or before internal maintenance is performed. To ensure
that unauthorized personnel cannot run the machine, use the Lockout / Tag Out feature.
DO NOT MODIFY THE PRESSURE RELIEF VALVE OR CHANGE THE CONTROL SYSTEM SETTINGS.
Using the machine in a manner for which it was not designed will compromise the machine and nullify the
protections provided.
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Safety Precautions
CAUTION : To prevent equipment damage,
TO PREVENT CROSS-CONTAMINATION, USE THIS MACHINE WITH R1234YF REFRIGERANT ONLY.
The machine is equipped with special connectors to recover, recycle, and recharge only R1234yf refrigerant.
Do not attempt to adapt the machine 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 machine and the vehicle
air conditioning system.
DO NOT USE THIS MACHINE IN DIRECT SUNLIGHT. Position the machine far from heat sources, such as
direct sunlight which can cause excessive temperatures. The use of this machine under normal environmental
conditions (10°C to 50°C) keeps pressures under reasonable limits.
DO NOT USE THIS MACHINE OUTDOORS DURING RAIN OR HIGH HUMIDITY. Protect the machine from
conditions that may cause electrical failure or other hazards relating to ambient interaction.
DO NOT USE THIS MACHINE IN AREAS WHERE THERE IS A RISK OF EXPLOSION.
SET UP THE MACHINE ON AN EVEN SURFACE AND UNDER SUFFICIENT LIGHTING. LOCK THE
FRONT WHEELS, AND DO NOT SUBJECT THE MACHINE TO VIBRATION.
Further information regarding health and safety may be obtained from the refrigerant manufacturer.
WARNING: Warranty is not valid in all cases of improper use of the machine and if the
machine is not submitted to periodic ordinary and extraordinary maintenance (according to PED
directive 2014/68/EU) provided in this original instructions. The manufacturer therefore declines
all responsibilities for any damage resulting from not observing all the instructions and warnings
provided to the user regarding installation, use and maintenance.
Protective devices
Robinair No. AC1234-3(P) is equipped with the following protective devices :
• Over pressure valves.
• A maximum pressure switch stops the compressor when excessive pressure is sensed.
WARNING: Tampering with these protective devices could result in serious injury.
PED directive 2014/68/EU
The machine includes parts subject to PED EU directive 2014/68/EU, Pressure Equipment Directive.
PED directive regulates all the pressurized part defining for them categories based on volume-pressure
ratio and based on fluid refrigerant type. Those parts then have not to be anyhow modified nor removed.
Under the responsibility of the owner, the machine and parts falling in the scope of PED shall be checked
either during commissioning and periodically fulfilling local country regulations and norms. Parts in the
scope of PED are:
• Tank.
• Pressure relieve valve.
• High pressure switch.
• Recovery group.
• Piping.
Call Robinair service center to get technical specifications for each part listed.
4
The Robinair No. AC1234-3(P) machine is used
on R1234yf equipped vehicles and is designed to
be compatible with existing service equipment and
standard service procedures. This machine is a singlepass system (i.e. refrigerant flows through a filter
once) that meets specifications for recycled refrigerant.
Follow recommended service procedures for the
containment of R1234yf.
Note: R1234yf systems require special oils. Refer to
the A/C system manufacturer’s service manual for oil
specifications.
Technical Specifications
Introduction
Compressor ............................... 1/4 HP
Dimensions .................. 107 cm x 61 cm x 76 cm
Display ............... 3.94 x 6.34 cm VA graphical LCD
Filter .......................................150 kg
Humidity .........32.2°C (90°F), 80% RH non-condensing
Manometer ...............................Ø 63 mm
Maximum Pressure ...........................18 bar
Noise ...................................<70 dB(A)
Nominal Voltage ......................230V, 50/60 Hz
Oil Tank ....................................355 ml
Operating Temperature ................. 10°C to 50°C
Power Consumption ........................1100 VA
Pump Free-Air Displacement ....2.5 CFM (70 l/m) 50 Hz
Service Hoses ....................250 cm / SAE J2888
Tank Capacity ..................... 8.50 kg (18.74 lb.)
Weight ......................................67 kg
AC1234-3 shown
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5
Introduction
Features of the AC1234-3(P)
4
3
AC1234-3P
Shown
5
Item
2
6
7
1
8
9
No.
1 Oil Drain Bottle
2
Printer (AC1234-3P only)
Low-side (blue) and High-side (red)
3
Manifold Gauges and Panel Valves
4 Graphic Display and Keypad
USB and SD card Connections;
5
2224V
to main lines
6 Vacuum Pump Oil Sight Glass
7 Vacuum Pump Oil Drain Fitting
8 Wheel Lock
9 Vacuum Pump Oil Fill Cap and Port
Description
double insulation in respect
RMS
10
11
6
12
13
14
10 Oil Inject Bottle
11 Service Hoses
12 Power / Lockout / Tag Out Switch
13 Service Hose Storage Ports
14 Power Cord
Control Panel Functions
Introduction
ARROW UP moves selection of a menu item to the
previous item; turns up audio volume.
ARROW DOWN moves selection of a menu item to the
following item; turns down audio volume.
ARROW RIGHT scrolls to next screen; fast forwards
the video.
ARROW LEFT scrolls to previous screen; rewinds the
video.
F1 makes a selection or answers a query.
F2 makes a selection or answers a query.
HELP displays information related to the current
display.
MENU accesses additional functions and parameters.
AUTOMATIC activates a menu that helps
the user set up an automatic recover /
vacuum / leak test / charge sequence.
MENU
HELP
F2F1
AUTOMATIC
RECOVER
VACUUM
CHARGE
DATABASE
9
Control Panel Keypad
Setup Menu Functions
Access the following functions by pressing
the Menu key and selecting Setup.
Calibration Check
RECOVER activates the sequence to
recover refrigerant from the vehicle A/C
system.
VACUUM activates the sequence that pulls
a deep vacuum on the vehicle A/C system
to remove air and moisture.
CHARGE activates the sequence that
charges the vehicle A/C system with a
programmed amount of refrigerant.
DATABASE
supplies information regarding
charge capacity by vehicle model.
Use to verify internal scale calibration. Refer
to Calibration Check in the Maintenance
section of this user manual.
Edit Print Header
Programs information that will appear on the
printout each time a print function is used.
Filter Maintenance
The filter removes acid, particulates, and
moisture from the refrigerant. To meet
requirements, it is mandatory to replace the
filter after 150 kg (331 lbs.) of refrigerant
has been filtered.
This menu item displays the filter capacity
remaining until the machine locks down
and no longer functions. Refer to Filter
Maintenance in the Maintenance section.
Flush Hoses
Flushes residual oil from the machine’s
service hoses to prepare for service of next
vehicle.
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Introduction
Oil Inject Adjust
Variables affect the accuracy of oil injection. Use
this menu item to adjust the oil inject correction
factor when using very high or low viscosity oils,
or if the machine is operating in very high or low
ambient temperatures. Refer to Oil Inject Adjust
in the Maintenance section of the manual for
instructions.
Production Menu
For Robinair production use only.
Pump Maintenance
Displays the amount of time remaining until the
next vacuum pump oil change is needed. For
maximum vacuum pump performance, change
vacuum pump oil every time the filter is replaced.
Refer to the Change Vacuum Pump Oil in the
Maintenance section.
Refrigerant Management
Displays the amount of refrigerant recovered,
charged, and replenished (for the life of the
machine), and filtered since the last filter change.
Tank Fill
Use this Setup Menu item to transfer refrigerant
from a source tank to the ISV. The tank fill value
may be adjusted up or down to suit the user’s
needs. Refer to Tank Fill in the Maintenance
section.
Unit Activation
Failure to register and activate the machine within
30 days of initial startup will cause the machine to
lock out and no longer function. Select this Setup
Menu item and follow the prompts before the trial
period expires.
View Service Data
Displays vehicle information that was entered
into the Enter Service Data screen. Vehicles are
displayed by date of service and VIN number. The
database stores 20 VIN entries.
Refrigerant Tracking
To store the amount of refrigerant recovered and
charged for each vehicle. The display shows five
selection options:
Select Language
Select a language for screen prompts. English is
the default language.
Service Menu
For Robinair service center use only.
Select Units
Program the machine to display units of measure
in kilograms or pounds. The default display is
kilograms.
Set Date and Time
Program the machine for current date and time.
System Flush
Provides a method of removing oil by forcing
liquid refrigerant through an A/C system or
components of an A/C system. After flushing,
the refrigerant is recovered by the machine and
filtered by the recycling circuit.
System Information
Displays the revision level of the software in the
machine.
• Display: to display the recovered and charged
refrigerant data.
• Print: to print all the data stored on the station.
• Export data to SD: to export the report with the
amount of refrigerant recovered and charged
on the vehicle. The data is exported via SD
card, recommended size at least 2 GB and
formatted FAT (SD card not supplied). The
data is transferred as a .csv file.
• Erase all records: to delete all the data stored
on the station.
• Disable Tracking: to disable the refrigerant
report function.
Charge no pulse
To enable or disable the pulsing charge.
Calibrate Air Flow
To perform the air flow calibration.
Follow the messages on the display screen.
8
Unpack the Machine
Initial Setup
1. Remove the bandings from the box.
2. Remove the top carton infold, the molded pulp tray,
and the angle boards.
3. Remove the sleeve from the bottom carton infold.
4. Gently roll the unit forward and off the pallet,
avoiding any sudden shocks to the machine.
WARNING: To prevent personal
injury while working with refrigerant,
read and follow the instructions
and warnings in this manual, and
wear protective equipment such as
goggles and gloves.
Unpack the Accessory Kit
Unpack the accessory kit from the box, and remove the plastic packaging.
Accessory Kit
Calibration Weight
533 g
Tank Fill Hose
Adapters (3)
Gaskets (3)
Power Up the Machine
1. Unwind the power cord from the handle, and plug it
into a correct voltage, grounded outlet.
2. Position the machine so the plug and the power
switch are of easy access for the operator. Verify
the fan vents on the rear of the machine are not
obstructed.
3. Lock the front wheels.
4. Turn the power switch clockwise (CW) to turn the
machine ON. See Figure 1.
The machine launches into the initial Setup mode.
Pouch containing the user manual und Material
Safety Data Sheets (MSDSs).
Power
Switch
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Figure 1
9
Initial Setup
Select Language
The operator selects the language for the screen
prompt displays. English is the default language.
1. Use the UP or DOWN arrow key to toggle through
the available languages one line at a time.
2. Press F1 to set the selected language.
Select Units
The operator sets the display for units of measure.
Metric is the default.
1. Use the UP or DOWN arrow key to toggle Imperial or
Metric units.
2. Press F1 to choose the displayed unit of measure.
Set Date and Time
Use the arrow keys to move the cursor. Use the keypad
to modify the information displayed.
1. Use the UP and DOWN arrow keys to select which
item to change: day, month, year, or time.
Note: To update an existing language
or to add a new language, refer to Load
Language in the Maintenance section of
this manual.
2. Use the multi-tap interface on the numeric keypad to
modify the information:
3. Press F1 to save.
Edit Print Header
This machine has the capability to store recovery,
vacuum, charge, and flush information for up to 20
vehicles. The information loaded into Edit Print Header
will appear on each printout. If you want to add a printer
to your machine, refer to Printer Installation in the
Maintenance section of this manual.
1. Enter text by using the arrows and the multi-tap
interface on the numeric keypad:
• LEFT arrow acts as a backspace key.
• RIGHT arrow moves the cursor to the right.
• ZERO (0) key acts as a spacebar.
• UP and DOWN arrows navigate between the rows.
2. Press F1 to continue; press F2 to return to the
previous header.
10
Service Vacuum
At this point the machine clears its internal plumbing
before proceeding with setup.
1. Check the vacuum pump oil level sight glass and
verify the oil level is at the center of the sight glass.
2. When prompted, connect the service hoses from the
machine to their storage ports as shown in Figure 2.
3. Open the service hose couplers by turning the
collars clockwise.
4. Press F1. The machine performs an internal clearing
of its plumbing, and then sounds an alarm when the
process is complete.
Initial Setup
Service Hoses
Connected to
Storage Ports
Tank Fill
This procedure transfers refrigerant from a source tank
to the internal storage vessel (ISV) in the machine. The
maximum capacity of the ISV is 8.5 kg. Use arrow keys
to move the cursor; use the keypad to enter a value.
1. The machine displays fields for desired tank fill
amount, chargeable refrigerant, and the amount of
recoverable refrigerant within the internal storage
vessel. Enter the desired tank fill amount. Note:
Add at least 3.6 kg of refrigerant to ensure enough
is available for charging.
2. Connect the low-side (blue) hose to the liquid
connector on the source tank.
3. Open the low-side (blue) valve on the control panel.
4. Open the coupler valve on the hose by turning the
collar clockwise.
5. Open the source tank valve.
6. Position the source tank in such a way that liquid
refrigerant is supplied to the connection.
Figure 2
Note:
Chargeable Amount: The amount of
refrigerant in the ISV that can be charged
into a vehicle A/C system.
Recoverable Amount: The amount
of additional refrigerant that could be
recovered into the ISV.
7. Press F1 to start the tank fill process. The machine
begins filling the internal storage vessel (ISV). Add
at least 3.6 kg of refrigerant to ensure enough is
available for charging. This process takes 15 – 20
minutes.
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11
Initial Setup
Tank Fill contd.
8. The machine stops when the designated amount of
refrigerant has been transferred to the ISV or when
the source tank is empty. Follow the messages on
the display screen.
9. Close the low-side (blue) valve on the control panel.
10. Close the hose coupler valve by turning the collar
counterclockwise.
11. Close the source tank valve.
12. Press F2 to return to the Setup Menu.
The machine is ready for operation.
Note: It is necessary to complete the entire Initial Setup
sequence before using the station. If it is not completed,
this initial setup sequence is repeated every time the
station is switched on.
Note:
There is no need to calibrate the scale; it is
•
calibrated at the factory.
There is no need to calibrate the scale; it is
•
calibrated at the factory.
After the tank fill process is complete, the display
•
does not show the same amount as the programmed
fill level.
The display shows the amount of refrigerant that
is available for charging, which is approximately
0.91 kg less than the total amount of refrigerant in
the tank.
12
Unit Activation
Failure to register and activate the machine within 30
days of initial startup will cause the machine to lock out
and no longer function.
1. Select Unit Activation from the Setup Menu. The
machine displays
XX DAYS LEFT ON TRIAL
PERIOD TO ACTIVATE UNIT.
ACTIVATE NOW?
2. Press F1 to start the activation process. The
machine displays
PERSONAL PRODUCT CODE
XXXXXXXXXXX
HTTPS://REGISTER.SERVICESOLUTIONSPORTAL.COM
FOR ACTIVATION CODE
Initial Setup
3. Open a web browser on a personal computer and
enter the web address shown in Step 2.
4. Enter your user name and password, and log in to
the website. Note: If you are a first-time user, click
the REGISTER button to create a user name and
password.
5. Enter the Personal Product Code of your machine to
receive an activation code.
6. On the AC1234-3(P), press F1. The machine
displays
PERSONAL PRODUCT CODE
XXXXXXXXXXXXX
ENTER CODE:
XXXXXXXXXXXXXXXXXXXX
Enter the activation code into the correct field. Note:
Enter the code exactly as received. Capitalization is
required.
7. Record the activation code on a piece of paper and
file it in a secure place. Press F1.
8. The machine displays
ACTIVATION SUCCESSFUL.
Press F1. The AC1234-3(P) has been activated.
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Operating Instructions — Enter Service Data
Enter Service Data
After selecting any service function, information about
the vehicle may be entered into and stored in the
machine’s database.
1. The machine displays
ENTER SERVICE DATA
NEW RECORD
2. Press F1 to enter a new record, or scroll to select
a previously serviced vehicle and press F1. The
machine displays
ENTER SERVICE DATA
VIN: ______________________
MILEAGE: _________________
MAKE: ____________________
MODEL: __________________
3. Use the arrow keys to move between rows and the
multi-tap keypad to enter text.
Information entered on this screen is stored by
date and vehicle identification number (VIN). The
database stores the most current 20 entries, with the
most recent at the top of the list.
The information will also appear on service summary
printouts if using the AC1234-3P machine.
14
Operating Instructions — Recover
Recover Refrigerant from a Vehicle
1. Empty the oil drain bottle before starting a recovery.
Remove the oil drain bottle from the machine by
pulling the bottle straight down — do not use a
twisting or rocking motion. Refer to Figure 3.
2. Connect the high-side (red) and low-side (blue)
service hoses to the vehicle A/C system.
3. Open the coupler valves on the hoses by turning the
collars clockwise.
4. Open the high-side and low-side panel valves on the
machine’s control panel.
5. Press the RECOVER button on the control panel.
See Figure 4.
6. Press F1. The machine begins the recovery
process. The clicking noise indicates the solenoid is
opening and closing — this is normal.
WARNING: To prevent personal
injury while working with refrigerant,
read and follow the instructions
and warnings in this manual, and
wear protective equipment such as
goggles and gloves.
Figure 3
7. The machine runs a self-clearing cycle to clear any
internal refrigerant from its internal plumbing.
8. When the system has recovered to -.45 bar
(13 in/Hg), recovery is complete.
MENU
HELP
F2F1
AUTOMATIC
RECOVER
VACUUM
CHARGE
Oil Drain
Bottle
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9
DATABASE
Figure 4
15
Operating Instructions — Recover
Recover Refrigerant from a Vehicle continued
9. After recovery, the machine will perform an oil drain,
which may require up to 90 seconds to complete.
10. After the oil drain is complete, a summary is
displayed of gas recovered and oil drained. If your
machine is the AC1234-3P, you may print out
recovery information and pre-recover diagnostics
by selecting F1. Press F2 to return to the Select
Action screen.
Note: The displayed recovered weight can vary
depending on ambient conditions and should not be
used as an indicator of scale accuracy.
11. The amount of oil that was removed from the A/C
system is the amount of new oil that should be
charged into the A/C system after evacuation is
complete.
Use only new oil to replace the oil removed during
•
the recycling process.
Dispose of used oil according to government
•
regulations.
Recovery is complete.
CAUTION: To prevent loss of refrigerant
to the atmosphere, allow the machine
to cool for 30 minutes—with the power
ON—between recoveries when operating
at ambient temperatures above 40°C
(104°F).
To automatically rid the ISV tank of noncondensables, an air purge pressure
relief is used. Consecutive recoveries at
excessively high ambient temperatures
can rapidly raise tank pressure, causing
an unwanted triggering of this pressure
relief. This can potentially result in
excessive loss of refrigerant.
16
Operating Instructions — Vacuum
Evacuate the Vehicle A/C System
1. Connect the service hoses to the vehicle’s service
ports.
2. Open the service hose coupler valves by turning the
collars clockwise.
3. Open the high-side and low-side panel valves on the
machine’s control panel.
4. Press VACUUM.
5. Press F1 to accept the 15-minute default evacuation
time, or enter a desired vacuum time using the
number keys. Press F1.
Note: The vacuum process will halt if pressure rises
above .35 bar (5 psi). Recover refrigerant before
proceeding.
WARNING: To prevent personal
injury while working with refrigerant,
read and follow the instructions
and warnings in this manual, and
wear protective equipment such as
goggles and gloves.
6. The machine pulls a vacuum on the A/C system for
the programmed amount of time.
7. The machine stops when the specified amount of
time has elapsed.
If your machine is Model AC1234-3P, you may print
out vacuum information by selecting F1.
Press F2 to return to the Select Action screen.
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17
Operating Instructions — Flush Hoses
Flushing the Hoses
If the next vehicle to be serviced contains a different
type of oil than the previous vehicle serviced, it is
recommended the service hoses be flushed of residual
oil to prevent contamination.
1. Select FLUSH HOSES from the Setup Menu. The
machine displays
CONNECT HOSES TO STORAGE PORTS
AND OPEN VALVES.
2. Connect the service hoses to the machine’s storage
port connections as shown in Figure 5.
3. Open the service hose coupler valves by turning the
collars clockwise.
4. Open the high-side and low-side panel valves on the
machine’s control panel.
5. Press F1 to begin the hose flush process, which runs
for three minutes, followed by a recovery.
WARNING: To prevent personal
injury while working with refrigerant,
read and follow the instructions
and warnings in this manual, and
wear protective equipment such as
goggles and gloves.
6. When the hose flushing process is compete, the
display reads
FLUSH HOSES
COMPLETE
Press F2 to exit and return to the Setup Menu.
7. Close the coupler valves by turning the collars
counterclockwise.
8. Close the panel valves on the machine’s control
panel.
Storage
Port
Connections
Figure 5
18
Operating Instructions — Charge
Recharge the Vehicle A/C System
Automatic leak tests are performed during the
CHARGE process. To avoid false failures, the
temperatures of the vehicle system and the recovery
machine should be within ± 5 degrees C.
1. Connect both service hoses to the vehicle’s service
ports. Open both high-side and low-side panel valves.
2. Press CHARGE. The display shows
REFRIGERANT: 00.0000 KG
OIL: 000 ML
SELECT MENU KEY TO CHANGE UNITS
3. Use the arrow keys and the numeric keypad to enter
the desired charge amount.
4. Press F1 to start the charge process. After the
machine completes a pre-charge leak test, you will
be prompted to select a charge path. Note: Only a
high-side or a both-side charge can be completed if
also injecting oil.
High-side charge: Verify the high-side (red) panel
•
valve and both service hose couplers are open.
Close the low-side (blue) panel valve.
WARNING: To prevent personal
injury while working with refrigerant,
read and follow the instructions
and warnings in this manual, and
wear protective equipment such as
goggles and gloves.
Note: The charging process differs from
vehicle to vehicle. Charge function for
vehicles equipped with a single-service
fitting should be carried out manually. Refer
to the vehicle service manual for specific
instructions.
Low-side charge: Verify the low-side (blue) panel
•
valve and both service hose couplers are open.
Close the high-side (red) panel valve.
Charge both sides: Verify both panel valves and
•
service hose couplers are open.
5. Press F1 to continue the charge process. Moving
or bumping the machine at this point may result in
an inaccurate charge. When the charge cycle gets
close to the desired weight value, the machine slows
down. It will charge, settle, charge again, settle, etc.
6. When prompted, close any open service couplers.
However, any open panel valves must remain open.
Remove service hoses from the A/C system, and
install the hoses on machine’s storage ports. Press
F1 to clear the hoses.
7. When the CHARGE COMPLETE screen appears,
it includes a summary of charge results. If using
Model AC1234-3P, you may print out the summary
by pressing F1. Press F2 to return to the Select
Action screen.
8. Close the panel valves. The vehicle A/C system is
now ready for use.
CAUTION: Before performing any oil
injection make sure a proper quantity is
available into the respective bottle.
CAUTION: If the low-side (blue) or highside (red) coupler valve is left open and
connected during the hose clearing
process, the system will pull refrigerant
back out of the vehicle.
SP00D00079 2019-03-05
19
Operating Instructions — Automatic
Automatic Function
The AUTOMATIC function allows a user to perform an
automatic recovery, vacuum, leak test, and / or charge
sequence. A total automatic sequence may take up to
an hour to complete.
1. Connect high-side (red) and low-side (blue) service
hoses to the A/C system.
2. Open the service hose coupler valves by turning the
collars clockwise.
3. Open both the high-side and low-side valves on the
machine’s control panel.
4. Press AUTOMATIC. Follow the instructions on
the display as the machine proceeds through the
Automatic cycle. During Charge, follow the Chargespecific instructions elsewhere in this manual.
WARNING: To prevent personal
injury while working with refrigerant,
read and follow the instructions
and warnings in this manual, and
wear protective equipment such as
goggles and gloves.
5. When prompted, close the service hose couplers by
turning the collars counterclockwise. However, any
open panel valves must remain open.
6. Remove the service hoses from the A/C system,
and install the hoses on the machine’s storage
ports. Press F1 to clear the hoses. This prepares the
machine for the next service.
7. When the CHARGE COMPLETE screen appears,
the display shows a summary of charge results. If
the machine is Model AC1234-3P, you may print out
the summary by pressing F1. Press F2 to return to
the Select Action screen.
8. Close the panel valves at this time.
CAUTION: Before performing any oil
injection make sure a proper quantity is
available into the respective bottle.
Information About Automatic Function
• The CHARGE function for vehicles
equipped with a single-service fitting
should be carried out manually
according to procedures in the vehicle
manufacturer’s service manual.
• The amount of oil recovered during
RECOVER is automatically injected
before the CHARGE cycle.
• If RECOVER was not performed,
the amount of oil to be injected may
be entered while programming the
CHARGE information.
20
• If problems are encountered during the
automatic sequence, an audio alert
sounds three times. The sequence
remains paused until the user enters a
decision regarding how to proceed.
• The pre-charge leak test is automatic.
Operating Instructions — System Flush
System Flush
The SYSTEM FLUSH function is performed using a
vehicle manufacturer-approved flushing adapter. Refer
to the instructions included with the adapter also as
you perform the following steps.
1. Verify the flusher filter and strainer are not plugged.
2. Mount the flusher to the rear of the Robinair
machine. Do not make any connections at this time.
3.
Remove the oil drain bottle (see Figure 6) from the
Robinair machine. Drain the oil bottle, and dispose
of the oil according to regulations in your area.
Reinstall the oil drain bottle on the machine.
4. Recover all refrigerant from system to be flushed.
5. Note the amount of oil collected during recovery.
This amount must be replaced, as well as any oil
collected during flush.
WARNING: To prevent personal
injury while working with
refrigerant, read and follow the
instructions and warnings in
this manual, and wear protective
equipment such as goggles and
gloves.
Note: The amount of oil collected and reported
during System Flush does not include the amount
of oil collected during the initial recovery.
6. Verify there is at least 6.0 kg (13.2 lb.) of refrigerant
in the Robinair machine. The machine will not be
able to complete a system flush without at least
6.0 kg of refrigerant in the ISV.
Note: If the machine does not have at least 6.0 kg
(13.2 lb.) of refrigerant on-board, see the section of
this manual titled Tank Fill.
7. Disconnect the Robinair machine from the vehicle.
8. Refer to the vehicle service manual, and connect
the appropriate flushing adapters and bypasses.
9. Connect the low-side (blue) service hose directly to
the filter of the flushing kit.
10. Remove the high-side (red) service coupler, and
connect the high-side (red) service hose to the
system suction line adapter.
11. Use the supplied hose to connect the system
discharge adapter to the flusher inlet.
12. Connect hoses according to the instructions
included with the flush kit.
Oil Drain
Bottle
Figure 6
13. Select System Flush from the Setup Menu. The
machine displays a prompt to verify the flushing kit
is correctly attached and to open both panel valves.
Press F1 to continue.
14. Accept the default vacuum time or program a
greater amount of time. Press F1.
SP00D00079 2019-03-05
21
Operating Instructions — System Flush
System Flush contd.
15. When vacuum is complete, a 5-minute pressure
test begins. A small amount of refrigerant is
charged and recovered through the flushing circuit,
while the machine continuously checks for pressure
loss within the system.
16.
After a successful pressure test, the machine displays
CLOSE LS PANEL VALVE
AND OPEN HS VALVE
Close the low-side panel valve; open the high-side
panel valve. Press F1 to begin the flushing cycle.
17. After a small charge, the machine displays
CLOSE HS PANEL VALVE
AND OPEN LS VALVE
Close the high-side panel valve; open the low-side
panel valve. Press F1 to continue. The charged
refrigerant is recovered through the low-side
service hose.
18. Steps 15 and 16 are repeated three more times to
ensure an effective system flush. After the fourth
cycle, the machine automatically performs an oil
drain. After the oil drain is complete, the machine
displays the total amount of oil drained during this
process:
COMPLETE
OIL: XXXYY
19. After a successful flush and system reassembly,
replace any oils lost during the process. Refer
to the vehicle service manual for additional
instructions.
20. Press F2 to return to the Setup Menu.
WARNING: Do NOT disconnect
service couplers during the flushing
process. Refrigerant could spray out of
the fittings, and exposure may cause
personal injury.
CAUTION: The flushing kit has a
replaceable filter as well as a debris
strainer, both of which can get plugged.
At the end of the flush cycle, check
the high-side (red) gauge for system
pressure, and check the adapter for
complete removal of refrigerant.
If pressure exists or refrigerant remains,
exit the flushing cycle and enter the
recovery mode to recover refrigerant
through both the high-side (red) and
low-side (blue) hoses. Then service the
filters and repeat the flush process.
22
Maintenance Schedule
Maintenance Task Recommended Interval
Change filter
Change vacuum pump oil
Maintenance
After 150 kg (331 lbs.) of refrigerant has been
filtered. Refer to Filter Maintenance in the
Maintenance section of this manual.
When the filter is replaced. Refer to Change
Vacuum Pump Oil in the Maintenance section
of this manual.
Check casters and wheels for ease of
operation
Check internal scale calibration
Check machine for leaks
Clean air intake panels (see Figure 7) Monthly. Use a clean cloth.
Clean cabinet and control panel Monthly. Use a clean cloth.
Inspect power cord and hoses for cuts and
abrasions
Lubricate wheel bearings and inspect brake
components
Pressure Test
Monthly.
Monthly. Refer to Calibration Check in the
Maintenance section of this manual.
Monthly. Check hoses and connections for
leakage. Disconnect power, remove the
shroud, and use an electronic leak detector to
check fittings.
Daily.
Monthly.
Every 10 years — performed by an authorized
Robinair service center.
Air
Intakes
Figure 7
SP00D00079 2019-03-05
WARNING: To prevent personal injury,
• Only qualified personnel may
perform inspections and repairs
to this machine.
• Read and follow instructions and
warnings in this manual.
• Wear protective equipment such
as goggles and gloves.
23
Maintenance
Note: In case of refrigerant leaks during normal use of
the machine and during installation, maintenance or
repair of the machine, no refund will be made by the
manufacturer.
Electrical Protection
The machine is equipped with a circuit breaker on the
center divider as shown in Figure 8. If the breaker trips,
its button will pop out. A tripped circuit breaker will
cause the machine to lose all power.
1. Remove the front shroud.
2. Press the circuit breaker button to reset.
3. Replace the shroud.
Figure 8
Circuit
Breaker
Lockout / Tag Out
To ensure that unauthorized personnel cannot run the
machine, use the Lockout / Tag Out feature. Refer to
Figure 9.
1. Turn the Power / Lockout / Tag Out lever
counterclockwise (CCW).
2. Insert a padlock or other item through the aligned
holes so the lever cannot be turned clockwise (CW)
to start the machine.
Load Language
Use the following instructions to add or update a
language from an SD card.
1.
Choose SELECT LANGUAGE from the Setup Menu.
2.
Use the arrow keys to scroll to LOAD NEW. Press F1.
Power /
Lockout / Tag Out
Lever
Figure 9
Insert SD card
containing new
or
updated
language.
3. Insert the SD card containing the language data into
the side panel on the machine. See Figure 10.
4. Follow the prompts to select the language to load
or update. If loading a new language, it will be
necessary to select which language to replace.
24
Figure 10
Tank Fill
This menu item is used to transfer refrigerant from a
source tank to the ISV.
The maximum capacity of the internal storage vessel
(ISV) is 8.5 kg. Use the arrow keys to move the cursor;
use the keypad to enter a value. Note: Add at least
3.6 kg of refrigerant to ensure enough is available for
charging.
1. Connect the low-side (blue) hose to the liquid
connector on a full source tank.
2. Open the low-side (blue) panel valve on the control
panel of the machine.
3. Position the source tank in such a way that liquid
refrigerant is supplied to the connection. Open the
source tank valve.
4. Select TANK FILL from the Setup Menu. The
machine displays
Maintenance
TANK FILL
FILL AMOUNT: XX.XYY
CHARGEABLE: XX.XXYY
RECOVERABLE: XX.XXYY
START EXIT
5. Enter the quantity to recover, and press F1. Add
at least 3.6 kg of refrigerant to ensure enough is
available for charging.
6. The machine begins filling the ISV and automatically
stops when the preset tank fill level is reached. To
stop the tank fill before the preset level is reached,
press F2 to pause. An option to exit will appear on
the display.
7. Once complete, close the service hose coupler valve
and the panel valve on the control panel. Remove
the hose from the source tank.
SP00D00079 2019-03-05
25
Maintenance
Filter Maintenance
The filter is designed to trap acid and particulates,
and to remove moisture from refrigerant. To meet
the mandate for adequate moisture and contaminant
removal, the filter must be replaced after 150 kg
(331 lbs.) of refrigerant has been filtered.
The machine gives a warning when 125 kg (276 lbs.)
of the filter capacity has been used; the machine locks
down when the 150 kg (331 lb.) filter capacity has been
reached and will no longer function.
Check Remaining Filter Capacity
1. Select FILTER MAINTENANCE from the Setup
Menu or when the machine prompts. The machine
displays
REMAINING CAPACITY:
XXX.XYY
REPLACE FILTER NOW?
The machine displays the amount of filter capacity
remaining until the machine locks down.
WARNING: To prevent personal
injury while working with
refrigerant, read and follow the
instructions and warnings in
this manual, and wear protective
equipment such as goggles and
gloves.
Caution: To prevent equipment damage,
use only authentic Robinair No.
SP00101192 filters in this machine. All
performance tests and claims are based
on using this specific filter.
2. Press F1 to change the filter; press F2 to resume
using the machine.
WARNING: The components in the machine are
under high pressure. To prevent personal injury,
change the filter only when the machine prompts.
Replace the Filter
1. If F1 was selected to change the filter, the machine
prompts for the new filter code to be entered.
ENTER NEW FILTER SERIAL NUMBER
Use the keypad to enter the serial number that
appears on the new filter and press F1 to continue.
Note: If INVALID SERIAL NUMBER is displayed, the
serial number has been incorrectly entered, or the
filter has already been used in this machine.
26
Maintenance
Filter Maintenance continued
2. The machine clears the existing filter and then
displays
TURN POWER OFF AND REPLACE FILTER
Shut off the machine. Remove the oil bottle. Remove
the four screws holding the shroud. See Figure 11.
3. Hang the shroud on the back of the machine as
shown in Figure 12.
4. Remove the filter by turning the nuts on the attached
copper tubing counterclockwise. Disconnect the nuts
from the filter and move the tubing out of the way.
5. Loosen the fastening screw on the filter locking
collar. Pull the filter out of the locking collar.
6. Verify the o-rings on the copper tubing are lubricated
and not damaged. (The o-rings have been lubricated
using ISO6743-3 DVA / DVC oil.)
7. Install the new filter within the locking collar and
tighten the collar fastening screw. The filter MUST
be oriented so the direction of flow is downward,
from top to bottom.
8. Connect the top and bottom copper tubing to the
filter. Tighten the fastening nuts to 20 N•m.
Remove the four screws
holding the shroud.
Figure 11
9. Recycle the filter that was removed from the
machine according to the laws in your jurisdiction.
Hang Shroud
Here
Filter
SP00D00079 2019-03-05
Figure 12
27
Maintenance
Calibration Check
This function is used to ensure the machine’s internal
scale is always calibrated. During this test, use only the
calibration weight that is provided with the machine.
1. Refer to Figure 13, and verify the magnet on the
bottom of the machine is clean.
2. Select CALIBRATION CHECK from the Setup
Menu. The machine displays
PLACE CALIBRATION WEIGHT ON MAGNET
LOCATED ON THE BOTTOM OF MACHINE
3. Attach the calibration weight to the magnet on the
bottom of the machine. Select F1 to continue.
4. The machine displays
REMOVE CALIBRATION WEIGHT FROM MAGNET
LOCATED ON THE BOTTOM OF MACHINE
Remove the calibration weight from the magnet.
Select F1 to continue.
If the display shows
•
CALIBRATION PASSED
the scale is in calibration. Select F2 to return to the
Setup Menu.
If the display shows
•
CALIBRATION FAILED
the scale is out of calibration. You may press F1
again to retry. If calibration continues to fail, contact
an authorized Robinair service center for assistance.
Magnet
Figure 13
28
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