here - Snap-on Equipment
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1. couplings R134a units only 3 Before starting recovery allow the vehicle engine to run a few minutes with the A C system off A WARM ENGINE WILL SPEED THE RECOVERY PROCESS 4 Recovery times will be slower in cold weather 5 ALWAYS allow the unit to operate until the RECOVERY RECYCLE IN PROCESS light goes off Shutting the unit off prematurely will prevent the oil purge from occurring and can prevent removal of filter shell lid for filter core change CHARGING TIPS 1 USE CAUTION WHEN HANDLING THE UNIT HEATER BLANKETS The virgin tank heater blankets are on when the unit power is on and can become very hot Shut power off prematurely will prevent the oil purge from occurring and can prevent removal of filter shell lid for filter core change 2 Do not leave the oil injection bottle attached to the unit when not in use 3 Do not push the oil injector button while the vacuum pump is running 4 Close all tank and hose valves when not in use to prevent loss of refrigerant 5 Make certain to completely open the R134a service couplings R134a units only 6 Charging from the recycled refrigerant tank will be faster when the tank is at least half full especially in cooler weather 7 Charging from the virgin refrigerant tank will be faster if the tank is allowed to heat for 20 minutes before starting charge 8 Make sure that the heater blanket is located on the virgin tank as shown Back of unit VIRGIN Heater a S2. APPENDIX C USER S MANUAL RECOVERY and RECYCLING BEFORE STARTING RECOVERY ALLOW THE AUTOMOBILE ENGINE TO RUN A FEW MINUTES WITH THE A C SYSTEM OFF A WARM ENGINE WILL HELP SPEED RECOVERY 1 Connect blue system hose to the low side port of the A C system and the red system hose to the high side port 2 Make sure the unit is plugged into a grounded 115v outlet and the valves on the recycle tank and the tank hoses are open Turn the unit power switch to ON Selector switch to RECOVER amp RECYCLE 3 Open the valves on the red and blue system hoses and check for pressure on the unit gauges No pressure indicates that there is no refrigerant in the A C system DO NOT RECOVER AN EMPTY A C SYSTEM 4 If gauges show pressure press the START RECOVERY amp RECYCLE button The START RECOVERY amp RECYCLE IN PROGRESS light will flash 5 As refrigerant is recovered from the A C system the pressure gauges will begin to drop 6 When the A C system pressure reaches 6 in hg of vacuum the unit will automatically shut down If the pressure rises the unit will restart automatically to recovery any residual refrigerant This process will repeat until A C system has been recovered and remains in a stable vacuum 7 Once the unit senses that the A C system has held a stable vacuum for two minutes any oil removed from the A C system will purge into oil discharge cup DO NOT SHUT UNIT OFF DURING PRESSURE CHECK AND OIL PURGE PROCESS WAIT UNTIL RECOV
3. ERY amp RECYCLE IN PROCESS LIGHT STOPS FLASHING 8 Remove oil discharge cup and read the amount from the markings on the cup LITTLE OR NO OIL REMOVED IS NORMAL 9 Dispose of recovered oil in accordance with any federal state or local ordinances Replace discharge cup REPALCE ANY OIL REMOVED WITH PROPER LUBRICANT FOR A C SYSTEM CHECK VEHICLE MANUFACTURERS PUBLISHED SERVICE PROCEDURES FOR CORRECT LUBRICANT 10 The recovery amp recycle process is now complete Close the valves on the system hoses and disconnect from vehicle Necessary repairs can now be made to the A C system REPLACING THE FILTERCORE Units with recovery recycling Change Filter core every 20 hours as indicated by unit in a vacuum 1 Close valves on the hoses or couplings of the RED and BLUE unit hoses 2 Press START RECOVERY amp RECYCLE button and allow unit to run until the LOW gauge rises to 5 to 10 psi 3 Turn unit power to OFF when the LOW gauge reaches 0 to 5 psi 4 Loosen the center bolt on the filter shell lid three full turns 5 Turn the lid counterclockwise until it stops and lift up on the lid The center bolt may have to be pushed down slightly prior to turning the lid 6 Remove th esoring plate Remove the old filter core and dispose of it properly 7 Remove the new filter P N K16200 SP 2 pack from the vacuum sealed container and install it immediately in the filter shell with the cone shaped end up 8 Install the spring plate on to
4. ed on the side of the unit Reinstall the oil fill plug REPLACING THE FILTER CORE UNITS WITH RECOVERY RECYCLING Change Filter Core Every 20 Hours as Indicated by Unit Hour meter Filter shell lid may be difficult to remove if shell is in a vacuum 1 Close valves on the hoses or couplings of the Red and Blue unit hoses 2 Press START RECOVERY amp RECYCLE button and allow unit to run until the LOW gauge rises to 5 to 10 psi Turn unit power OFF when the LOW gauge reaches 0 to 5 psi 3 Loosen the center belt on the filter shell lid three full turns 4 Turn the lid counterclockwise until it stops and lifts up on the lid The center bolt may have to be pushed down slightly prior to turning the lid 5 Remove the spring plate Remove the old filter core and dispose of it 6 Remove a new filter core P N 16200 SP 2 pack from the vacuum sealed container and install it immediately in the filter shell with the cone shaped end up 7 Install the spring plate on top of the new core with the spring facing up 8 Replace the filter shell lid and turn it clockwise until the marks on the side of the lid are aligned with those on the shell 9 Tighten the center bolt on the filter shell lid to 10 ft lbs of torque ERROR CODES ERROR CODES ARE ONLY DISPLAYED ON UNITS WITH DIGITAL CHARGING DISPLAYS TO CLEAR ERROR CODE DISPLAY PRESS THE MODE SELECT BUTTON ONCE E 01 Not Used E 02 The Oil Purge Did Not Occur This error will occur if 1 The recovery tan
5. k vapor valve or hose valve is cleared 2 The recovery tank is empty 3 The ambient temperature is below 20 F E 03 The Vacuum Pump Did Not Start This error will occur if 1 The system hoses have more than 20 psi in them or applied to them A recovery operation must be performed before evacuating E 04 The Units Select Button Did Not Change the Dispensing Unit for the Charge This error will occur if 1 The EVACUATE Indicator is ON Evacuation time is always in minutes 2 Amounts are programmed for either VIRGIN CHARGE or RECYCLED CHARGE To clear dial all programmed charge amounts to zero or turn the machine off and then back on E 05 The Current Charge Can Not Start This error will occur if 1 The pressure of the tank being charged from virgin or recycled is over 220 psi This error will generally occur if the recycled tank contains excess air or is too hot Allow the tank to cool if too hot If excess air is suspected shut the unit off and then back on Wait about 40 seconds The EXCESS AIR indicator will illuminate if the tank contains excess air If so follow the procedures for performing on excess air purge E 06 The Unit Did Not Complete the Oil Air Purge at the End of the Recovery Cycle This error will occur if 1 There is a restriction in the unit plumbing from the filter shell to the oil purge port 2 Previous oil purge cycles were interrupted by shutting unit off before purge was complete Effective 7 2000 Page C 5
6. p of the new core with the spring facing up 9 Replace the filter shell lid and turn it clockwise until the marks on the side of the lid are alighned with those on the seal 10 Tighten the center bolt on the filter shell lid to 10 ft lbs Of torque Effective Page C 2 7 2000 APPENDIX C USER S MANUAL RECOVERY amp RECYCLING INDICATORS HOURMETER The hour meter totals the time the machine has operated in the recovery mode This allows tracking of the total accumulated recovery time on the filter The filter should be changed after every 20 hours HIGH PRESSURE INDICATOR The HIGH PRESSURE indicator will illuminate when the pressure on the discharge side of the recovery unit exceeds 435 psi Failure to open the valves on the recycle tank or recycle tank hoses will cause high pressure condition to occur If the HIGH PRESSURE indicator illuminates 1 Ensure that the valves on the recycle Tank and tank hoses are fully open to allow refrigerant to flow into the recycle tank 2 If valves are open excess air is probably present in the tank Turn unit off and allow tank to cool 3 Turn unit back ON and wait 40 to 60 seconds The EXCESS AIR indicator EXCSS AIR INDICATORS The EXCESS AIR indicator will illuminate and stay on if there is excess air in the recycle tank Excess air is detected automatically by the recovery recycle unit with no need for pressure temperature comparison by the operator If the EXCESS AIR indicator come
7. s on and does not flash 1 Properly dispose of any oil in the oil purge cup and reinstall cup in unit 2 Depress the START EXCESS AIR PURGE BUTTON The air purge process will shut off automatically once the excess air has been expelled The EXCESS AIR indicator can also FLASH to indicate other conditions besides excess air ONE FLASH ON OFF ON OFF ON OFF ON OFF TANK PROBE NOT CONNECTED TWO FLASHES ON ON OFF ON ON OFF ON ON OFF RECOVERY TANK TOO COLD THREE FLASHES ON ON ON OFF ON ON ON OFF RECOVERY TANK TOO HOT FOUR FLASHES ON ON ON ON OFF ON ON ON ON OFF TANK FULL INDICATOR The TANK FULL indicator will illuminate and stay on if the recycle tank becomes 80 full If the TANK FULL indicator comes on and does not flash 1 Check for full tank If tank is full close tank hose valves and replace with an evacuated tank 2 Connect tank sensor cord to new tank and open tank hose valves Turn power OFF to reset unit 3 Turn unit ON and press the START RECOVERY amp RECYCLE button The TANK FULL indicator can also FLASH to indicate other conditions besides a full tank ONE FLASH ON OFF ON OFF ON OFF ON OFF TANK PROBE NOT CONNECTED TWO FLASHES ON ON OFF ON ON OFF ON ON OFF Effective 7 2000 Page C 3 APPENDIX C USER S MANUAL OPERATION TIPS RECOVERY amp RECYCLING TIPS Close all tank and Jose valves when not in use to prevent loss of refrigerant 2 Make certain to completely open the R134a service
8. t C7 3 raps Blanket A D Rings GENERAL MAINTENANCE Check O rings and depressor gaskets on hoses and couplings EVERY 20 HOURS Replace the Micron Filter Elements EVERY 20 HOURS T BO REPLACE THE MICRON FILTERS Locate the micron filter assemblies on the system and tank hoses Hose Hose zx Filter Assembly Large Section Filter Element Using two 5 8 open end wrenches separate the filter assembly Remove the filter element from the assembly Install a new element P N 90420 SP 10 pack with the core pointing toward large section of filter assembly Using 2 5 8 open end wrenches tighten the 2 pieces of the filter assembly together Effective Page C 4 7 2000 APPENDIX C USER S MANUAL CHANGING THE VACUUM PUMP OIL CHARGING UNITS ONLY Change vacuum pump oil every 20 hours or as indicated by sight glass Open the virgin refrigerant door on back of unit R134a door on model 1234XL 2 Locate the vacuum pump drain valve through the access hole in the top of the tank compartment Hold a container capable of holding 26 ounces under the access hole and open the drain valve Dispose of used oil in a responsible manner 3 Close the drain valve and remove oil fill plug located on top rear of unit 4 Fill the vacuum pump through the oil fill port to the oil level line on the sight glass locat
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