Snap-On POLARTEK PLUS EEAC331 User manual

• 1 •
INTRODUCTION
Snap-on®Model No. EEAC331 is ETL Laboratories approved, in compliance with SAE J2788. We are dedicated to solving the issues
surrounding the safe containment and proper management of refrigerants. Your new machine incorporates the latest technology
and state of the art features to aid you in servicing R134a air conditioning and refrigeration systems. We hope you get as much
enjoyment using this equipment as we did designing and building it.
MANUEEAC.331 ED.8
EEAC331
R134a Refrigerant
Recovery / Recycle / Recharge
Station

• 2 •

• 3 •
INDEX
INDEX ....................................................................3
SAFETY ..................................................................5
SAFETY SIGNAL WORDS ................................................... 5
SAFETY INFORMATION ..................................................... 5
EXPLOSION HAZARDS 5
HEAT/FREEZING HAZARDS 5
GENERAL SAFETY MESSAGES 6
FUME HAZARDS 6
ADDITIONAL SAFETY INFORMATION 6
HOSES CONNECTION ........................................................ 7
SAFETY DEVICES 7
REFRIGERANT AND LUBRICANT - PERSONAL
PROTECTIVE EQUIPMENT AND PRECAUTIONS............ 7
PRECAUTIONS FOR HANDLING AND USE OF R134a
FLUIDS .................................................................................. 7
SETUP ....................................................................8
COUNTERS........................................................................... 8
LANGUAGE .......................................................................... 8
MEASURE UNITS ................................................................. 8
PLATE NUMBER................................................................... 8
QUICKSETUP........................................................................ 9
SET DATE / TIME.................................................................. 9
SETUP HEADER PRINT ....................................................... 9
VACUUM SETTINGS ........................................................... 9
INTRODUCTION ................................................. 10
CERTIFICATION ................................................................. 10
ABOUT THIS MANUAL ..................................................... 10
ABOUT YOUR AIR CONDITIONING SERVICE CENTER 10
GENERAL INFORMATION .................................. 11
PRINCIPLES OF OPERATION ............................. 11
THE MACHINE .................................................... 12
PLASTIC COVER................................................................. 12
CONTROL PANEL.............................................................. 13
LIGHT SIGNALS 13
DISPLAY ICONS.................................................. 13
BASIC COMPONENTS ........................................ 14
ALARMS.............................................................. 15
ERROR MESSAGES ............................................. 16
PRELIMINARY OPERATIONS ............................. 17
AUTOMATIC PROCEDURE ................................. 18
EDIT VACUUM DATA ....................................................... 18
AUTO OIL INJECTION ...................................................... 18
EDIT CHARGE AMOUNT DATA ...................................... 18
EDIT CHARGE MODE ....................................................... 18
START AUTOMATIC PROCEDURE ................................. 18
MANUAL PROCEDURE....................................... 21
RECOVERY/RECYCLING................................................... 21
VACUUM ............................................................................ 22
PAG/DYE INJECTION ....................................................... 24
EDIT PAG DATA 24
EDIT OIL2\DYE DATA 24
EDIT CHARGE DATA 24
EDIT CHARGE MODE 24
START PROCEDURE 24
CHARGE.............................................................................. 26
EDIT CHARGE DATA 26
EDIT CHARGE MODE 26
START PROCEDURE 26
SERVICES............................................................ 27
SEARCH BY PLATE ............................................................ 28
SEARCH BY DATE.............................................................. 28
EXTRACT ARCHIVE ........................................................... 29
MAINTENANCE .................................................. 30
A/C PRESSURES CHECK................................................... 30
AIR PURGE MANUAL........................................................ 32
CALIBRATION.................................................................... 32
CHANGE DRYER FILTER................................................... 33
DATABASE ......................................................................... 35
EMPTY HOSES ................................................................... 35
MAINTENANCE REPORT.................................................. 36
SERVICES ARCHIVE........................................................... 36
TANK CELL CHECK............................................................ 36
TANK FILLING.................................................................... 37
VACUUM PUMP OIL CHANGE........................................ 38

• 4 •
VACUUM PUMP ................................................................ 38
FILLING THE PAG OIL CONTAINER................................40
FILLING THE OIL2\DYE CONTAINER ............................ 41
EMPTYING THE USED OIL CONTAINER........................ 42
REPLACING THE PRINTER PAPER .................................. 43
INFO.................................................................... 43
WARRANTY ........................................................ 44
NOTES ................................................................ 45

• 5 •
SAFETY
The following safety information is provided as guidelines to
help you operate your new system under the safest possible
conditions. Any equipment that uses chemicals can be
potentially dangerous to use when safety or safe handling
instructions are not known or not followed. The following safety
instructions are to provide the user with the information
necessary for safe use and operation. Please read and retain
these instructions for the continued safe use of your service
system.
SAFETY SIGNAL WORDS
All safety messages contain a safety signal word that indicates
the level of the hazard. An icon, when present, gives a graphical
description of the hazard.
Safety Signal words are:
Indicates an imminently hazardous situation which, if not
avoided, will result in death or serious injury to the operator or to
bystanders.
Indicates a potentially hazardous situation which, if not avoided,
could result in death or serious injury to the operator or to
bystanders.
Indicates a potentially hazardous situation which, if not avoided,
may result in moderate or minor injury to the operator or to
bystanders.
SAFETY INFORMATION
Every craftsman respects the tools with which they work. They
know that the tools represent years of constantly improved
designs and developments. The true craftsman also knows that
tools are dangerous if misused or abused. To reduce risk of
discomfort, illness, or even death, read, understand, and follow
the following safety instructions. In addition, make certain that
anyone else that uses this equipment understands and follows
these safety instructions as well.
READ ALL SAFETY INFORMATION CAREFULLY before attempting
to install, operate, or service this equipment. Failure to comply
with these instructions could result in personal injury and/or
property damage.
RETAIN THE FOLLOWING SAFETY INFORMATION FOR FUTURE
REFERENCE.
Published standards on safety are available and are listed at the
end of this section under ADDITIONAL SAFETY INFORMATION.
The National Electrical Code, Occupational Safety and Health Act
regulations, local industrial codes and local inspection
requirements also provide a basis for equipment installation, use,
and service.
The following safety alert symbols identify important safety
messages in this manual.
When you see one of the symbols shown here, be alert to the
possibility of personal injury and carefully read the message that
follows.
EXPLOSION HAZARDS
Risk of explosion
 Do not fill the tank to more than 80% of the
maximum capacity.
Explosion can cause death or personal injury.
HEAT/FREEZING HAZARDS
Risk of personal injury
 Handle refrigerants and pressure vessles
with caution.
 Wear safety glasses, gloves, and suitable
clothing.
 Avoid contact with the skin.
 Avoid breathing A/C refrigerant and
lubricant vapor mist.
Contact with refrigerant can cause health risks,
blindness, and other physical damage (frostbite) and
possibly death.
Risk of personal injury and equipment damage
 Always use an identifier before recovering
refrigerent from a vehicle.
 Recover only the refrigerent the product
was certified to be used with.
Recovery of refrigerents other than the one the unit
was certified for may cause injury, equipment
damage and possible death. Alternate refrigerants
may contain flammables such as butane or propane
and can explode or cause a fire.
Warning
Warning
Dan
g
er
Caution
Warning

• 6 •
GENERAL SAFETY MESSAGES
Risk of electric shock
 Unplug unit before attempting any
maintenance or cleaning.
 Do not operate unit with damaged cord or
plug.
Electric shock can cause injury or death.
Risk of equipment or circuit damage
 Always unplug equipment from electrical
outlet when not in use.
 Never use the cord to pull plug from an
outlet. Grasp the plug and pull it to
disconnect.
 If an extension cord is necessary, a cord with
a current rating equal to or more than the
equipment should be used. Cords rated for
less current may overheat.
 DO NOT adapt your unit for a different
refrigerant — system failure will result.
R134a systems have special fittings (per SAE
specifications) to avoid cross contamination.
Improper use of equipment can cause equipment or
circuit damage.
Risk of unexpected vehicle movement
 Block drive wheels with chocks before
performing a test with engine running.
 Unless instructed otherwise, set parking
brake, and put gear selector in neutral or
park.
 If the vehicle has an automatic parking
brake release, disconnect the release
mechanism for testing and reconnect when
finished.
 Do not allow bystanders to stand in front of
or behind the vehicle while testing.
 Do not leave a running engine unattended.
A moving vehicle can cause death or serious injury.
Risk of personal injur
y
 Keep yourself, clothing and other objects
clear of hot or moving parts.
 Keep hoses and cords clear of moving parts.
 Do not wear watches, rings, or loose
clothing when working in an engine
compartment.
Contact with hot or moving parts can cause injury.
FUME HAZARDS
Risk of fume, gas, and vapor hazards
 Avoid breathing A/C refrigerant and
lubricant vapor mist.
 Always perform vehicle service in a properly
ventilated area.
 Never run an engine without proper
ventilation for its exhaust.
Fume, gas, and vapors can cause irritation to eyes,
nose, and throat, cause illness or death.
ADDITIONAL SAFETY INFORMATION
For additional information concerning safety, refer to the
following standards.
ANSI Standard Z87.1 — SAFE PRACTICE FOR OCCUPATION AND
EDUCATIONAL EYE AND FACE PROTECTION - obtainable from
the American National Standards Institute, 11 West 42nd St., New
York, NY 10036, Telephone [phone], Fax [phone] -
www.ansi.org
Risk of
v
entilation hazards
 Must have at least four air changes per hour
or equipment should be located at least 18”
(457 mm) above the floor.
Poor ventilation can cause irritation to eyes, nose,
and throat, illness, or death.
Risk of explosion
 Do not pressure test or leak test R134a
equipment and/or vehicle air conditioning
systems with compressed air.
Explosion can cause injury or death.
NOTE: Use only new lubricant to replace the amount
removed during the recycling process. Used lubricant
should be discarded per applicable federal, state, and local
requirements.
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 unauthorized shipping
and/or labor charges.
Warning
Caution
Warning
Warning
Warning
Warning

• 7 •
Risk of explosion
 Ensure that you are only recovering from the
fitting on the AC system.
 Some car manufacturers on the fuel intake
manifold install a connector identical to the
A/C low pressure fitting.
Explosion can cause injury or death.
Risk of personal injur
y
 Do not operate equipment with damaged
cord or hoses.
 Do not operate the unit if it has been
damaged until it has been examined by a
qualified service personnel.
Damaged parts can cause injury or death.
HOSES CONNECTION
Hoses may contain refrigerant under pressure. Before
disconnecting the quick coupler verify the corresponding
pressure in the service hoses (gauge).
SAFETY DEVICES
The machine is equipped with the following safety devices:
SAFETY PRESSURE SWITCH: Stops the compressor in case of
excessive pressure.
SAFETY VALVE: Opens when the pressure inside the system
reaches a level of pressure above the estimated limits.
MAIN SWITCH: Connects and disconnects machine AC electrical
power. Disconnect main power cord from electrical power
sourcebefore servicing.
ANY KIND OF TAMPERING OF THE SAFETY DEVICES
MENTIONED ABOVE IS NOT ALLOWED.
REFRIGERANT AND LUBRICANT -
PERSONAL PROTECTIVE EQUIPMENT
AND PRECAUTIONS
Risk of personal injur
y
 Handle refrigerants and pressure vessles
with caution.
 Wear safety glasses, gloves, and suitable
clothing.
 Avoid contact with the skin.
Contact with refrigerant can cause health risks,
blindness, and other physical damage (frostbite).
Risk of equipment damage and personal injury
 Should be operated by certified personnel.
 Do not remove the seals of the safety valves
and control systems.
 Do not use external tanks or other storage
containers that are not approved.
 Do not block air vents and ventilation
equipment.
Improper use of equipment can cause equipment
damage and personal injury.
PRECAUTIONS FOR HANDLING AND USE
OF R134a FLUIDS
Risk of personal injury. Risk for handling pressurized R134a
containers
 Avoid inhaling highly concentrated vapors.
 Avoid use of R134a near open flames and incandescent
 elements.
 Wear protective garments such as to ensure that no jets
 of liquid or gas can come into contact with the skin.
 Wear goggles to avoid contact with the eyes.
 Avoid dispersing the R134a refrigerant fluid utilized in the
 machine into the atmosphere.
Mishandling of pressurized R134a containers can cause loss of
Consciousness, injury or death.
Warning
Warning
Warning
Dan
g
er

• 8 •
SETUP
From the MAIN MENU:
Select the SETUP, the following screen will be displayed:
COUNTERS
From the SETUP MENU, select COUNTERS, the following screen is
displayed:
This screen displays the total values for: gas recovered, service
alarm counters, filter status, total vacuum time (minutes), gas
injected, and gas recovered in the internal tank using the “Tank
filling” function.
LANGUAGE
From the SETUP, select LANGUAGE :
NOTE: Current language is indicated by red dot.
Select a language, the unit will change the language in few
seconds.
MEASURE UNITS
From the SETUP MENU, select MEASURE UNITS, the following
screen is displayed:
Select the unit of measurement to change, then select between
international system of units (SI) and imperial system units (IMP).
When finished press ENTER to exit. The machine will reboot to
update measure units.
PLATE NUMBER
From the SETUP MENU, select PLATE NUMBER, the following
screen is displayed:
Select ON to visualize insert plate screen during automatic or
manual procedures, or OFF to skip this screen.
R134a
mm/dd/yyyy
hh:mm
xxxxxxx
AUTOMATIC MANUAL SERVICES
SETUP MAINTENANCE INFO
LANGUAGE
MEASURE UNITS
PLATE NUMBER
QUICKSETUP
SET DATE / TIME
R134a SETUP
PREV
PAGE
NEXT
PAGE
SETUP HEADER PRINT
COUNTERS
ACTIVATE PLATE NUMBER
R134a SETUP
PLATE NUMBER
ON OFF
SETTINGS
Pressure
Weight
Temperature
Volume
R134a SETUP
MEASURE UNITS
bar psi
g lb lb: oz
°C °F
ml oz
Recovered gas xxx lb
Service xxx lb
Filter xx %
Vacuum xxx min
Charged gas xxx lb
Tank filling xx lb
R134a SETUP
COUNTERS
Espanol
English
Français
R134a SETUP
LANGUAGE
PREV
PAGE
NEXT
PAGE

• 9 •
QUICKSETUP
The first time the machine is used, a quick startup guide appears:
the operator is guided through the steps described at the start of
the PRELIMINARY OPERATIONS section. From the SETUP MENU,
select QUICKSETUP, the following screen is displayed:
Press ENTER to proceed with QUICKSETUP, the user will be
guided throught the following steps:
 Language selection
 Measure units selection
 License plate recording
 Date and time selection
 Setup header print
 Vacuum settings
 Leak check test
 Tank filling
Follow the instructions displayed. At the end of the procedure,
press ENTER to print a summary report of the guided procedure.
Press ESC to exit.
NOTE: If the guided procedure is not completed, it will be
displayed again the next time the machine is switched on.
NOTE: To display the QUICKSETUP at any time, select from the
menu of the same name under SETUP.
SET DATE / TIME
The machine keeps date and time settings even if it is not used
for around one year. From the SETUP MENU, select SET DATE /
TIME:
Use keypad to change date and time. Press ENTER to confirm, or
press ESC to return to SETUP menu without saving the changes.
For example, to insert the date January 21st 2015, select the
month then type “1” using the keypad, select the day then type
“21” using the keypad, select the year then type “2015” using the
keypad; press ENTER to confirm and exit.
SETUP HEADER PRINT
The printout can be personalized by entering 4 lines containing
the workshop’s details (e.g. name, address, telephone number
and e-mail).
From the SETUP, select SETUP HEADER PRINT:
Use the keypad to modify the 4 lines, then press ENTER to return
to SETUP menu.
NOTE: the numerical keys include an alphabet that is used
similar to text messaging; for example: press “2” once to display
“2”, twice to display “A”, three times for “B”, four times for “C”, five
times for “a”, six times for “b”, seven times for “c”, eight times for
“2” again.
VACUUM SETTINGS
Allows to modify the default vacuum time and the default time
of check.
From the SETUP, select VACUUM SETTINGS, default setting is
displayed:
Each value can be modified, within the values shown in
parentheses.
NOTE: Press DEFAULT to restore default values:
Vacuum time 25 min
Time of check 2 min
Vacuum rising 1 psi
R134a SETUP
SETUP HEADER PRINT
Welcome to POLARTEK Quick Setup
Press ENTER to proceed
Press ESC to exit.
R134a SETUP
QUICKSETUP
R134a SETUP
SET DATE / TIME
Date
Time xx xx xx
xx xx xxxx
PM
Hours Minutes Seconds
Month Day Yea
r
Vacuum rising
Time of check
Vacuum Time
V
ACUUM SETTINGS
Pressing INFO set default values
R134a SETUP
VACUUM SETTINGS
xx
xx
xx psi
9 psi

• 10 •
INTRODUCTION
Snap-on®Model No. EEAC331 is ETL Laboratories approved, in
compliance with SAE J2788. We are dedicated to solving the
issues surrounding the safe containment and proper
management of refrigerants. Your new machine incorporates the
latest technology and state of the art features to aid you in
servicing R134a air conditioning and refrigeration systems. We
hope you get as much enjoyment using this equipment as we
did designing and building it.
CERTIFICATION
All technicians opening the refrigeration circuit in automotive air
conditioning systems must now be certified in refrigerant
recovery and recycling procedures to be in compliance with
Section 609 of the Clean Air Act Amendments of 1990. For
information on certification call MACS Worldwide at (215) 631-
7020.
ABOUT THIS MANUAL
This manual includes a safety summary,
machine preparation for use, operation
procedures, and maintenance instructions, for
your Air Conditioning Service Center.
Anyone intending to use the machine should
become familiar with ALL the information
included in this manual (especially the safety
summary) before attempting to use it.
Before operating this machine for the first time, perform all
preparation for use instructions.
If your new machine is not properly prepared to perform a
service, your service data could be erroneous. In order to
properly perform a complete air conditioning service, follow all
procedures in the order presented. Please take the time to study
this manual before operating the machine. Then keep this
manual close at hand for future reference. Please pay close
attention to the safety summary and all warnings and cautions
provided throughout this manual. To activate the published
warranty, mail the attached warranty card.
The machine is intended for indoor use only.
ABOUT YOUR AIR CONDITIONING
SERVICE CENTER
Your machine incorporates a highly accurate electronic scale for
determining charging weights, etc. Other functions can also be
performed with the electronic scale as you will discover during
the operating procedures. Either standard or metric units of
measure can be selected. This machine is a piece of equipment
designed to recover R134a from air conditioning systems (A/C)
for vehicles, to operate within the objectives of the Montreal
Protocol.
CAUTION
CAUTION

• 11 •
GENERAL INFORMATION
Machine model information are printed on the data plate (see
Fig. 1). Overall machine dimensions:
Height: 47" (120 cm)
Width: 25" (64 cm)
Depth: 25" (64 cm)
Weight: 200 lbs (90 kg)
Operating temperature 50/122°F (10/50°C)
Storage temperature -13/122°F (-25/50°C)
Like any equipment with moving parts, the machine inevitably
produces noise. The construction system, panelling, and special
provisions adopted by the Manufacturer are such that during
work, the average noise level of the machine is not in excess of
64 dB (A).
PRINCIPLES OF OPERATION
In a single series of operations, the machine permits recovering
and recycling R134a refrigerant fluids with no risk of releasing the
fluids into the environment, and also permits purging the A/C
system of humidity and deposits contained in the oil.
The machine is in fact equipped with a built-in
evaporator/separator that removes oil and other impurities from
the refrigerant fluid recovered from the A/C system and collects
them in a container for that purpose.
The fluid is then filtered and returned perfectly recycled to the
tank installed on the machine.
The machine also permits running certain operational and seal
tests on the A/C system.
NAMEPLATE
FIG. 1

• 12 •
THE MACHINE
PLASTIC COVER
Refer to Fig. 4a .
1) Upper plastic body
2) Frontal body shell
Disassembly: Screw off 6 screws marked (+)
3) Right side body shell
Disassembly: Remove frontal and rear body shell, both
right doors and then screw off 8 screws marked (+)
4) Right upper door
5) Right bottom door
Refer to Fig. 4b.
6) Rear body shell
Disassembly: Remove rear bottom door, then screw off
6 screws marked (+)
7) Left side body shell
Disassembly: Remove frontal and rear body shell, then
screw off 10 screws marked (+)
+
+
+
FIG. 4a
4
2
3
1
5
+
+
+
+
+
FIG.4b
6
7
+
+
+
+

• 13 •
CONTROL PANEL
Refer to Fig. 5:
1) Low pressure gauge
2) High pressure gauge
3) Printer
4) 7” touch color display
5) Tool tray
6) Status light
LIGHT SIGNALS
The machine is provided with a STATUS Light (ref 6, Fig. 5).
Light signals are the following:
 GREEN (STEADY): Unit ready
 GREEN (FLASHING): Action completed
 YELLOW: Unit working
 RED: Needs attention or there is a problem
DISPLAY ICONS
ICON DESCRIPTION
AUTOMATIC PROCEDURE: Activates a menu
that helps the user set up an automatic
recover/vacuum/leak test/charge sequence
MANUAL PROCEDURE: Activates a menu
that helps the user to perform a manual
operation
RECOVERY: Activates a menu that helps the
user to perform a recovery/recycling phase
VACUUM: Activates a menu that helps the
user to perform a vacuum phase
PAG/DYE INJECTION: Activates a menu that
helps the user to perform a PAG/DYE
injection followed by a charge phase
CHARGE: Activates a menu that helps the
user to perform a gas charge phase
SERVICES: Activates services menu
SETUP: Activates the setup menu of the
service station
MAINTENANCE: Activates the maintenance
menu of the service station
INFO: Activates a menu that contains all the
information of the service station
STOP: Terminates a procedure or operation,
silences the audible alarm or returns to the
previous screen
ENTER: Confirm a procedure or operation
shown on the display
ESC: Return back to previous menu
DATABASE: Activate database menu
KEYPAD: Numerical keypad (includes an
alphabet that is used to text messaging)
PRINTER: To print the receipt of the
procedure
FIG. 5
4 2
1
5
3
6

• 14 •
BASIC COMPONENTS
Refer to Fig. 7, Fig. 8, Fig. 9, Fig. 10:
a) Handle
b) Rear wheel
c) Front swirling wheel
d) Filter dryer panel access
e) Used oil container
f) Capsizable control panel
g) Status light
h) Tool tray
i) Ventilation grid
j) Service hoses pocket
k) Oil pump filling cap
l) Drive up pedal
m) Magnet for reference weight
n) Circuit breaker
o) Power cord exit
p) HP service hose outlet
q) HP quick connection
r) USB port
s) LP service hose outlet
t) LP quick connection
u) PAG oil container
v) OIL2/DYE container
FIG.7
c
b
e
d
a
v
u
FIG.8
h
g
f
i

• 15 •
ALARMS
HIGH PRESSURE ALARM: Beeper advises when the pressure of
the fluid in the circuit is too high 290 psi (20 bar). The recovery
operation is automatically interrupted.
FULL TANK ALARM: Beeper advises when the tank is filled to
more than 80% of maximum capacity, 24 lbs (10.9 kg). The
RECOVERY operation is automatically interrupted (to cancel this
alarm, charge one or more A/C systems before recovering any
more refrigerant).
EMPTY TANK ALARM: Beeper advises when the quantity of
refrigerant fluid contained in the tank is low, less than 3 lbs (1.36
kg).
VACUUM PUMP OIL CHANGE: Beeper advises after 15 hours of
work of the vacuum pump; change the oil of the vacuum pump.
SERVICE ALARM: Beeper advises whenever the total recovered
refrigerant amounts to 155 lbs (70 kg). To deactivate the alarm,
replace the filters and the vacuum pump oil. A code for canceling
the alarm is supplied with the spare filters.
FIG.9
n
j
l
k
m
o
FIG.10
r
s
t
p
q

• 16 •
ERROR MESSAGES
SYSTEM LEAKS: Error message displayed when the AC system
connections are not tight.
Solution: Verify the connections between the service hoses and
quick couplers, and make another 5 min vacuum test only on
service hoses . If the problem persists, delete the residual oil in
the service hoses making a short 4 oz (100 g) charge in the
service hoses and then a recovery, and repeat the 5 minutes
vacuum test on service hoses.
NOTE: If the vacuum test on service hoses passes, means that the
A/C system has a leak which must be localized using a leak
detector.
PRESENCE OF REFRIGERANT INTO THE A/C SYSTEM: Error
message displayed when starting the vacuum, the charging
station checks the presence of a pressure inside the A/C system.
Solution: Perform a recovery procedure.
LOW VACUUM: Error message displayed before charge if the
value of the vacuum> 400mbar.
Solution: Perform a quick vacuum procedure (at least 20
minutes).
EMPTY OIL2/DYE CONTAINER: Error message displayed when
the charging station is unable to complete the set amount of
oil/dye injection.
Solution: Fill the container with the correct amount of oil/dye for
compressors.
NOTE: Using oil/dye not recommended by the manufacturer
will void the warranty.
EMPTY PAG OIL CONTAINER: Error message displayed when
the charging station is unable to complete the set amount of
PAG oil injection.
Solution: Fill the container with the correct amount of new PAG
oil for compressors.
NOTE: Use only PAG oils recommended by the manufacturer
or vehicle manufacturer. Never use oil used.
LOW GAS AVAILABILITY: Error message displayed during
charge, when you select a quantity greater than the availability of
gas.
Solution: Fill the inner refrigerant tank, refer to the Tank Filling
section of the user manual.
SYSTEM EMPTY: Error message appears when you select a
recovery procedure, but is not found pressure in the A/C system.
Solution: Check the connection and closing of the quick couplers.
If after all these checks, the machine continues to give the same
error, means that the A/C system is empty.
SET QUANTITY LOWER THEN 4 oz (100 g): Error message
displayed during charge when the amount of gas typed is less
than 4 oz (100 g) (both automatic and manual procedure).
Solution: Set a quantity of gas greater than or equal to 4 oz
(100 g).
CHECK CONNECTIONS: Error message displayed when the flow
rate of charge is too low.
Solution: Verify the correct opening of the quick couplers. Make
sure that the amount of gas in the refrigerant tank is > 3 lbs (1.36
kg), otherwise fill the inner refrigerant tank.
Rarely, it may happen that the temperature of the engine
compartment of the vehicle is too high compared to that of the
charging station. This can cause an immediate balance between
the refrigerant tank pressure and A/C pressure causing a
slowdown or interruption of the charge. To avoid this, it is
recommended not to fill A/C in a vehicle exposed to the sun or a
vehicle with the engine running.
EMPTY EXTERNAL TANK: Error message appears during the
process of charge the refrigeant tank when the pressure drops to
zero before the completion of the procedure.
Solution: Check the connections, quick couplers and valves on
the external tank; if the external tank is empty, replace it with a
full one. Then run another charge.
HIGH PRESSURE ALARM: Error message appears during the
recovery procedure, internal tank filling, empty hoses, or flushing
hoses, this occurs when the hydraulic pressure reaches
approximately 290 psi (20 bar). The causes may be:
Ambient temperature where is located in the station is too high.
Solution: To wait for a sufficient time to cool the charging station
before resuming the interrupted procedure.
Number of services performed by the station is excessive.
Solution: To wait for a sufficient time to cool the charging station
before resuming the interrupted procedure.
One of the taps of the internal tank is closed.
Solution: To open the tap and resume the interrupted procedure.

• 17 •
PRELIMINARY OPERATIONS
Check that the main switch (ref 1, Fig. 11) is set to O. Connect the
machine to the electrical supply and switch on.
Check that the PAG oil, and OIL2/DYE containers aren’t empty, if
necessary refill them as described in maintenance section.
Check that the oil level in the used oil container is < 6.8 Oz (200
cc). If necessary empty it as described in ordinary maintenance
section.
Check on the machine display that there are at roughly 4.4 lb (2
kg) of refrigerant in the tank. Should this not be the case, fill the
on-board machine tank from an external tank of appropriate
refrigerant following the procedure described in the tank filling
(maintenance menu).
Check that the vacuum pump oil level indicator (ref 3, Fig. 12)
shows at least one-half full. If the level is lower, add oil as
explained in the maintenance section.
OPTIMAL
3
MAX
MIN
FIG. 12
1
FIG. 11

• 18 •
AUTOMATIC PROCEDURE
In the automatic mode, all the operations are performed
automatically: recovery and recycling, oil discharge, vacuum,
new oil reintegration, and charging. The values for the quantity
of gas recovered, quantity of oil recovered, vacuum time,
quantity of oil reintegrated, and quantity of gas charged into the
system are automatically printed at the end of each single
operation.
Before the automatic procedure, start the vehicle engine with
the hood closed (the air conditioner must switch OFF) for 10
minutes to warm the engine. Switch off the vehicle engine.
Connect the hoses to the A/C system with the quick-connect
couplings bearing in mind that BLUE must be connected to the
low-pressure side and RED to high pressure. If the A/C system is
equipped with a single quick-connect coupling for high or low
pressure, connect only the relative hose.
From the MAIN MENU:
Select the AUTOMATIC PROCEDURE, the following screen will be
displayed:
NOTE: press g, lb, or lb/oz to change the weight measurement
units.
NOTE: select value box, then use the keypad to modify
procedure parameters, press ENTER to confirm.
EDIT VACUUM DATA
Select VACUUM TIME value box. Use the KEYPAD to insert the
new value of the VACUUM TIME. Press ENTER to confirm, ESC to
return back.
NOTE: Use the VACUUM SETTING to change the duration of the
TIME OF CHECK.
NOTE: If selected VACUUM TIME is lower than 15 minutes the
following popup warning will be displayed:
Press YES to continue, or press NO to go back.
AUTO OIL INJECTION
Leave selected OFF to skip oil injection, or select ON to
reintegrate the same quantity of oil extracted during Recovery.
EDIT CHARGE AMOUNT DATA
NOTE: For most systems the quantity of fluid to be refilled is
indicated on a plate that is in the vehicle’s engine compartment.
If this quantity is not known, look for it in the relevant manuals.
Select CHARGE AMOUNT value box, then use the keys 0 to 9 to
type the quantity of refrigerant to be charged into the A/C
system.
NOTE: If DATABASE is installed, it can be used to insert the value
of refrigerant into the CHARGE field.
NOTE: If charge amount is lower than 4 oz (100 g) the following
popup warning will be displayed:
Charge amount lower than 4 oz (100 g) is not allowed, press
ENTER then re-enter a higher CHARGE AMOUNT value.
EDIT CHARGE MODE
Select the connection mode:
 HP+LP fill the refrigerant from both HP and LP service
ports.
 HP to fill the refrigerant only from the HP service port.
 LP to fill the refrigerant only from the LP service port.
START AUTOMATIC PROCEDURE
After selected all the procedure data, press ENTER to continue. If
plate number is enabled, the following screen will be displayed:
TIME OF CHEC
K
xx min
VACUUM TIME min
CHARGE AMOUNT
AUTO OIL INJECTION
R134a AUTOMATIC PROCEDURE
DATABASE
xx
HP+LPLPHP
xx
ON
lb
lb
lb/oz
g
OFF
R134a
mm/dd/yyyy
hh:mm
xxxxxxx
AUTOMATIC MANUAL SERVICES
SETUP MAINTENANCE INFO
WARNING !
charge amount
Less than 100g/4oz
Press ENTER to continue
R134a AUTOMATIC PROCEDURE
CHARGE
The selected vacuum time is lower than
15 minutes. The leak check could not be
reliable. Continue?
YES NO
R134a AUTOMATIC PROCEDURE
VACUUM

• 19 •
Type the plate of the car, press ENTER to confirm. ESC to return
back.
NOTE: the numerical keys include an alphabet that is used
similar to text messaging; for example: press “2” once to display
“2”, twice to display “A”, three times for “B”, four times for “C”, five
times for “a”, six times for “b”, seven times for “c”, eight times for
“2” again.
Then SUMMARY SCREEN will be displayed:
Press ENTER to confirm the displayed values and start the
procedure. ESC to return back.
The following screen will be displayed:
Connect and open the coupling to the A/C system, then press
ENTER. Press ESC to return back.
The AUTOMATIC PROCEDURE will start, and the following screen
will be displayed:
During the recovery phase, the machine displays the quantity of
refrigerant recovered. Upon completion of recovery, the
machine will stop and discharge, while automatically displaying
the used oil extracted from the A/C system during the recovery
phase.
The oil discharge operation lasts 4 minutes.
Completed the recovery phase, the machine automatically goes
on to running the vacuum phase for the preset time:
At the end of this phase, the machine will test for leaks in the A/C
system:
(WARNING! If vacuum time < 15 minutes this test is not reliable).
If leaks are found, the machine will stop automatically and
display the A/C SYSTEM LEAKS alarm.
Detection of micro-leaks is not guaranteed.
NOTE: The air purge is made automatically during the vacuum
phase, or when the machine is in stand by for 3 minutes always
automatically.
However air purge can always be made at any time manually by
the AIR PURGE MANUAL selection from MAINTENANCE menu.
Upon completion of the vacuum phase, if AUTO OIL INJECTION
was selected, the new oil will be automatically reintegrated (the
volume will be equal to that of the used oil discharged).
R134a AUTOMATIC PROCEDURE
VACUUM TIME
CHARGE AMOUNT
CONNECTION MODE HP+LP
VEHICLE PLATE UHU2445RF
Press ENTER to continue, ESC to go back
xxx lb
A
UTO OIL INJECTION xxx
xxx min
GAS EXTRACTION FROM A/C SYSTEM 1st PHASE
Recovered gas
Tank Pressure
A
/C pressure
Tank temperature
R134a AUTOMATIC PROCEDURE
RECOVERY / RECYCLE
lb
psi
psi
°F
R134a AUTOMATIC PROCEDURE
VACUUM
inHg
A/C Pressure
CHECK LEAKS
R134a AUTOMATIC PROCEDURE
VACUUM
inHg
A/C Pressure
R134a AUTOMATIC PROCEDURE
lb
psi
oz
RECOVERY / RECYCLE
Connect and open HP and LP coupling to A/C
system Press ENTER
R134a AUTOMATIC PROCEDURE
RECOVERY / RECYCLING
Inset vehicle
Plate number:
___________________
R134a AUTOMATIC PROCEDURE
RECOVERY / RECYCLE
1 2
ABC
3
DEF
4
GHI
5
JKL
6
MNO
7
PQRS
8
TUV
9
WXYZ
0
|_|
←.,

• 20 •
When completed, the system will go on to charging with the
preset quantity of refrigerant.
Then the following screen will be displayed:
Disconnect HP coupling, Start A/C system with LP coupling
connected, press ENTER.
The A/C system will recover the refrigerant into the service hoses,
then the following screen will be displayed:
Disconnect LP coupling from A/C system, then press ENTER to
continue:
The machine will recover the residual refrigerant into the service
hoses, then the following screen will be displayed:
Procedure is now successfully completed.
Press PRINTER to print the receipt of the procedure. Press ENTER
to exit.
NOTE: The automatic procedure may be run even if the A/C
system is empty. In this case, the machine will begin with the
vacuum phase.
Oil Injected
R134a AUTOMATIC PROCEDURE
PAG INJECTION
oz
R134a AUTOMATIC PROCEDURE
xx psi
EMPTY HOSES
Empty hoses
Hoses pressure
R134a AUTOMATIC PROCEDURE
CHARGE
Disconnect LP coupling, from A/C system and
Press ENTER
Disconnect HP coupling Start A/C system with LP
coupling connected and press ENTER
R134a AUTOMATIC PROCEDURE
CHARGE
R134a AUTOMATIC PROCEDURE
EMPTY HOSES
End Of Procedure
Gas recovered xxx lb
Oil recovered xxx oz
Vacuum time xxx min
PAG injected xxx oz
Gas charged xxx lb
Press ENTER to continue
Gas charged
Tank Pressure
A
/C pressure
Tank temperature
R134a AUTOMATIC PROCEDURE
CHARGE
lb
psi
psi
°F