122247 Robinair Cover - Weber State University
Contents
1. Power Cord Oil Drain Source Tank Bottle disposable inverted Tank Strap to secure tank to unit Shelf for i J gt Source Tank Source Tank m Hose INST 0686 342000 Refrigerant Service Solution 342000 OVERVIEW Before you begin any procedure familiarize yourself with its functions the components of the unit see diagrams in this section and its operation 1 POWER UP When the power is turned ON the unit performs self diagnostics When tests are complete the display shows SELECT OP ERATION Use the function keys F 1 to F 5 to select the desired operating mode MAIN MENU Shows the amount of refrigerant available for charging the current temperature humidity date time inlet valve status and operational status The information appears in the upper corners of the display Use the function keys F 1 to F 5 to select the mode or press SCROLL MENU for more choices SNAPSHOT MODE Displays operating data about the vehicle s A C system including refrigerant purity system pressure A C outlet temperature also A C outlet air velocity with optional anemometer attachment RECOVER MODE Removes refrigerant from the A C system and filters it during recovery for reuse VACUUM MODE Evacuates air from the A C system CHARGE MODE Recharges the A C system charge amount can be entered into pounds and hundredths of a pound pounds and ounce2. RROBINAIR KRAAK 4 Operating Model 342000 Refrigerant Service Solution Series 342000 RRoBINAIR Refrigerant R 134a Air Conditioning and Refrigerant Service Solution SAFETY DEFINITIONS Follow all WARNING CAUTION IMPORTANT and NOTE messages in this manual These messages are defined as follows WARNING means you may risk serious personal injury or death CAUTION means you may risk personal injury property damage or serious unit damage IMPORTANT means you may risk unit damage and NOTEs provide clarity and helpful tips These safety messages cover situations ROBINAIR is aware of ROBINAIR cannot know evaluate and advise you as to all possible hazards You must make sure all conditions and procedures do not jeopardize your personal safety COPYRIGHT No part of this manual may be reproduced stored in a retrieval system or transmitted in any form or by any means electronic mechanical photocopy recorded or otherwise without the prior written permission of ROBINAIR DISCLAIMER All information illustrations and specifications contained in this manual are based on the latest information available at the time of publication The right is reserved to make changes at any time without obligation to notify any person or organization of such revisions or changes Further ROBINAIR shall not be liable for errors contained herein or for incidental or consequential damages including lost profits in connection with the furnishing
3. duct temperature probes d Start the vehicle and turn the vehicle A C system to Maximum Cool or Recirculate setting 14 EEE 1999 Robinair SPX Corporation Press the START key 4 After identifying the vehicle refrigerant the 342000 displays and updates minimum and maximum values described above Pressing the RESET MIN MAX key resets and begins tracking new Minimum and Maximum values You can press the PRINT key at any time to capture and print the screen information The print out contains the following data The unit display gives directions and explanations based on current vehicle service SNAPSHOT SUMMARY status Read Date and follow Time these display prompts at all AMBIENT DATA times Humidity Temperature F or C VEHICLE DATA Main Vent Temperature minimum Back Vent Temperature minimum High Side Maximum Pressure psi KPA Low Side Minimum Pressure IDENTIFIER RESULTS R134a This percent refers to the percent of R 134a that is present in proportion to any other refrigerants present Air This percent refers to the amount of air by weight that is present in the system 5 When you have the necessary information turn OFF the engine Press the RECOVERY key to go directly into Recovery or you can exit to the MAIN MENU using the MAIN MENU key If all data is satisfactory and you will not be doing any service work allow system to equalize in order to minimize refrigerant
4. Allows accurate charging with varying lengths of hose Refrigerant Management Displays details on refrigerant usage 24 ESET 1999 Robinair SPX Corporation CHANGING THE FILTER DRIER The filter drier is specially blended to remove maximum moisture acid and other contaminants It will recycle about 300 pounds 136 36 kgs of refriger ant before a replacement is needed The unit keeps track of jobs and total recycled refrigerant and signals when it s time to change the filter drier If the CHANGE FILTER message comes on during a job it s best to complete that job before changing the filter drier FILTER CHANGE will show on the display until the filter has been replaced Filter INSTO719 CAUTION The filter change process should not be done with the unit connected to the vehicle Disconnect the unit by closing the service coupler valves and disconnecting the high and low side hoses from the vehicle Use the following steps to change the filter 1 Select MAIN MENU then press SCROLL MENU 2 Press the FILTER CHANGE function key 3 Press the START key The unit will run to clear the filter drier 342000 Refrigerant Service Solution 25 CHANGING THE FILTER DRIER continued 4 When the clearing is complete follow the on screen prompts 5 Turn the unit OFF and disconnect the power cord from the power outlet A WARNING AN Always disconnect the uni
5. xxx x is the current remaining time 501 4 for example PRESS START TO BEGIN OIL CHANGE When the START key is pressed the vacuum pump starts and the display shows a two minute countdown The pump runs until the countdown reaches zero This warms and circulates the vacuum pump oil so it drains easier The display will then show DRAIN OIL FROM PUMP REPLACE WITH 5 0 OUNCES OF NEW OIL PRESS START WHEN COMPLETE Drain the old oil and replace 5 ounces Press START The display will then show FILL WITH NEW OIL TO CENTER OF SIGHT GLASS APPROX 13 0 OUNCES PRESS ENTER WHEN COMPLETE After the user presses ENTER the pump will stop and return to the start up screen REPLACING PRINTER PAPER 1 Open the printer cover 2 Press the PUSH button on the right side of the printer and the entire printer mechanism will lift up 3 Insert paper as shown on the lid of the printer The paper will feed auto matically Push the printer mechanism down 4 Tear off paper at the top of the feed slot 5 Close the printer cover Press and hold the FEED button paper will feed up through the printer cover 28 1999 Robinair SPX Corporation REPLACING THE IDENTIFIER FILTER CAUTION Visually inspect the identifier filter every day If it begins to turn red replace it immediately You risk damaging the identifier if the filter isn t replaced The built in refrigerant identifier has an inlet filter to protect the sensor Peri odica
6. if a vacuum of 28 Hg is achieved 4 If you desire to evacuate for more than fifteen minutes change the time using the numeric keypad or use the UP arrow to increase the time see page 9 5 Press the START key to accept the evacuation time and begin the pro cess 6 When the unit reaches a vacuum of 28 Hg the red indicator light flashes and the beeper sounds to indicate the process is complete If 28 Hg is not achieved after 15 minutes of evacuation the process stops the light and beeper signal that attention is needed and you are prompted to check for a leak PRE 342000 Refrigerant Service Solution 17 NOTE Depending on your altitude you may not be able to achieve 28 Hg It is important that the altitude setting in the Set Up Menu is correct for your location The 342000 uses this information to calculate and provide an equiva lent set point for your altitude For instance at 7000 feet the 342000 pulls to 21 Hg before completing evacuation REPLENISHING A C SYSTEM OIL A WARNING A When running the engine be sure the vehicle is in PARK and always provide adequate ventilation Before charging the A C system you must replenish any oil removed from the A C system during the recovery process Charge only the amount of oil that was removed from the A C system during the recovery process Check the oil drain bottle to determine the amount of oil that was removed Be sure to empty the oil drain bottle before recove
7. into the front duct optional e Start the vehicle and set A C to MAX COOL Press the PRINT key to capture and print or reset MAX MIN to update CHARGE e The vehicle s A C system must be evacuated before charging e If the A C system did not hold a vacuum it may have a leak e If not evacuated the charge amount is limited to 5 Ib PRE 342000 Refrigerant Service Solution 23 RECOVER Verify that the service hoses are connected and the coupler valves are open The system must have at least 25 psi of pressure for correct operation of the refrigerant ID SET UP MENU Use the UP DOWN arrows to highlight selections Language Press TOGGLE SELECTION to select English Spanish or French Press the MAIN key to exit Select Units Selects the units of measure in English or Metric Press TOGGLE SELECTION Press the MAIN key to exit Clock Adjust Adjusts the date and time Press the ENTER key Use the UP DOWN arrows to change the date and time Change Elevation Sets the altitude above sea level for your location Enter the numeric value Calibrate Pressure Calibrates high and low side pressure transducers Disconnect service hoses and press the ENTER key Anemometer Enables and calibrates optional anemometer Instruction detail included with the anemometer Manual Oil Drain Allows user to manually drain any oil from the 342000 Press the ENTER key Press the EXIT key Hose Length
8. manual before operating this unit CAUTION R 134a systems have special fittings per SAE specifications to avoid cross contamination with R 12 systems Do not attempt to adapt your unit for another refrigerant type system failure will result 1999 Robinair SPX Corporation 7 Attach the red front 15 foot temperature probe and blue rear 30 foot temperature probes and optional airflow sensor to the appropriately la beled connections at the upper rear 8 The display will prompt you to add oil ADD 5 0 OUNCES OF NEW OIL TO VACUUM PUMP PRESS START TO CONTINUE Add 5 ounces of oil and press START The vacuum pump will start and the display will show FILL WITH NEW OIL TO CENTER OF SIGHT GLASS APPROX 13 0 OUNCES PRESS ENTER WHEN COMPLETE After the user presses ENTER the pump will stop and the unit starts the first fill procedure 9 Install a tank of new R 134a refrigerant on the lower shelf of the unit IMPORTANT below the handle the 342000 can handle 30 Ibs 14 kgs or 50 Ibs 23 ae Always test kgs tanks The source tank should be installed so that liquid refrigerantis Source tanks available prior to e Virgin tank should be inverted installation on the 342000 See the following page for procedure e Refillable tank should be upright with hose connected to liquid valve Secure the tank to the unit by placing the strap around the tank and tight ening it NOTE For initial set up of the 3420
9. on hoses and remove them 9 Reconfigure the vehicle s A C system to the way it was prior to flushing 10 Open the valve on the source tank 11 Evacuate and recharge the vehicle following instructions on page 19 22 1999 Robinair SPX Corporation HELP SCREENS The following Help Screens appear on the 342000 for your convenience VACUUM e Connect service hoses to vehicle and open coupler valves e The system must have less than 25 psi of pressure for correct operation of the vacuum pump e If greater than 25 psi you must recover the refrigerant before proceeding OIL FLUSH e Recover any refrigerant in the vehicle e Remove and bypass the Orifice Tube or TXV e Install compressor bypass block and filter kit e Connect blue low side service hose to the filter then open the service coupler e Connect the filter to the compressor bypass block Open the service coupler e Empty the oil drain bottle e Press the OIL FLUSH key on the 342000 to begin the process e Program increased vacuum and flushing time or press the ENTER key to accept default values e Install compressor and expansion devices e Evacuate replenish lost oil charge refrigerant e See Service Bulletins for specific vehicle instructions SNAPSHOT Install red 15 ft temperature probe into vehicle front air outlet duct Install blue 30 ft temperature probe into vehicle rear air outlet duct as required e Install airflow probe
10. prob lems include e Long extension cords Faulty overloaded electrical circuits Drop lights e Imcorrect ground or polarity NOTE If your electrical circuits have reversed polarity the screen dis plays the following messages VOLTAGE LINE ERROR CHECK POLARITY VOLTAGE READOUT WILL BE DISABLED with an option to continue NOTE If you choose the CONTINUE option the over and under voltage protection built into the circuit board will be disabled The unit may not operate correctly To ensure correct operation you must use a circuit with the correct polarity The display shows options and gives instructions for most service mainte nance tasks Read the display prompts and follow the directions given there To interrupt any function press the PAUSE key then press the CONTINUE key to restart the procedure The 342000 prompts you to check the system oil drain bottle on the back of the unit for recovered oil Any system oil that is lost will automatically drain during recovery You must measure and record the lost amount so that you know how much new oil to add during charging Refer to the A C system manufacturer s service manuals for oil specifications Dispose of used oil according to local state and federal regulations In general it is best to leave the 342000 main power ON throughout the workday This allows plenty of time for the unit to purge air from the tank and refill the internal storage vess
11. ready to recharge the A C system with refrigerant CHARGING THE VEHICLE The 342000 has a built in default charge amount of two pounds 91 kgs Other charge amounts can be programmed in pounds and hundredths pounds and ounces or kilograms NOTE To achieve optimum performance it is important to pull a good vacuum prior to charging see page 17 The 342000 automatically prevents you from starting a full charge into an insufficiently evacuated system If this occurs follow display prompts IMPORTANT For greatest accuracy do not disturb the unit during Use the following steps to charge an A C system charging 1 Service hoses should be connected to the system and the service couplers should be open 2 Press the CHARGE key or the SCROLL MENU key to reach the screen with the CHARGE function key then press CHARGE 3 You now have several options e Press the NEXT key to accept the 2 00 Ibs default e Press the UNITS key to change programming units If you press the UNITS key again the program toggles through pounds and hundredths pounds and ounces and kilograms Stop on the unit of measure you want e Use the numeric keypad and directional arrows to change the programmed amount of the charge Change the default charge program The unit will charge through the High Side unless you program it for Low Side charging To do this press the LOW SIDE key 4 After you have selected the units high or low side charging and the amo
12. the ON position 3 There is a brief initialization period of several seconds You will be prompted for the initial set up of the 342000 This sequence occurs ONLY during initial start up of a new 342000 Subsequent changes can be made in the Set Up Menu at any time 4 Prompts are as follows a Select Language Press the UP DOWN arrow to toggle between selec tions Press ENTER when your choice appears on the screen b Select Units English or Metric follow the same procedure as above c Set Elevation above sea level for your location 500 feet Call your area airport or library for your area s elevation On the Internet go to www topozone com and type your city name to view an elevation chart at no charge d Calibrate the Pressure Transducer follow the prompts You must disconnect the hoses from the 342000 during calibration e Set Date and Time You will be prompted to connect the proper hoses and accessories to the 342000 5 Open the accessory box packaged with the 342000 6 Attach the high and low side service hoses found in the accessory box to the 1 2 acme connections below the handle on the unit Connect the blue low side hose to the bottom fitting marked LOW Connect the red high side hose to the top fitting marked HIGH WARNING A Always wear eye protection when working with refrigerants D Refrigerants can cause injury Read and follow all warnings at the beginning of this
13. unit is ready for operation VEHICLES WITH CONTAMINATED SYSTEMS Before every recovery the 342000 automatically samples the refrigerant in the vehicle system The operator may not bypass this procedure If a system fails the purity level required the 342000 tests a second time In the event the system fails a second time the 342000 prompts you to disconnect the hoses from the vehicle Follow the on screen prompts in order to clear out the 342000 NOTE The 342000 must be disconnected from the vehicle before starting the cleaning process It is illegal to knowingly vent or allow refrigerant to vent to the atmosphere This illegal venting will occur if the machine is left attached to the vehicle Please refer to your shop s policy for dealing with contaminated refrigerant TESTING SOURCE TANKS Robinair recommends that all source tanks be sampled prior to installation on the 342000 The 342000 does not automatically test the contents of the source tank prior to adding refrigerant to the internal storage vessel If a source tank contains contaminants these contaminants are transferred to the internal storage vessel After a tank fill the unit samples the contents of the internal storage vessel When the internal storage vessel is contaminated the unit displays INTERNAL TANK CONTAMINATION or ID MALFUNCTION CONTACT SERVICE The 342000 locks out all functions until a certified service center decontaminates the machine This decontamina
14. 00 it is imperative that a new tank of R 134a refrigerant be used and the source tank should be tested for contami nation see page 12 The tank of refrigerant used for initial fill of the internal storage vessel is not automatically identified and introduction of contaminated refrigerant to the unit will require service which is not covered under warranty 10 Attach the black hose coming from behind the tank to the source tank fitting Open the source tank valve Press START 11 The 342000 now automatically evacuates all air from the internal circuit and tanks and precharges the tank with 12 pounds of R 134a available for charge This process takes approximately 15 to 20 minutes To avoid the possibility of lost refrigerant virgin tanks should be checked for leakage around the tank valve after being connected and the valve opened If leakage is found close the valve and keep it closed at all times EXCEPT during manual tank refill Before pressing MANUAL TANK REFILL button open the valve Close the valve immediately after the process is complete The manufac turer does not reimburse for lost refrigerant The 342000 is now set up and ready for operation PRE 342000 Refrigerant Service Solution 11 POWER UP After the initial setup is complete the 342000 will be ready to be powered up Use the following steps to power up the 342000 1 Turn the Main Power Switch ON 2 The display shows MAIN MENU and SELECT OPERATION when the
15. 42000 Refrigerant Service Solution SPX Corporation
16. ant supply in the internal vessel likelihood of Aad leakage the 1 The message CHECK SOURCE TANK is displayed black hose 2 Close the source tank valve Disconnect the black tank hose from the should always source tank valve be connected to a source 3 Release the tank strap and remove the tank from the back of the unit tank 4 Before installing a new source tank test the contents for contamination following instructions on page 12 Testing Source Tanks 5 Place a new disposable tank on the platform and secure it with the tank strap The tank must be set up to supply liquid usually this means it is inverted see page 11 step 9 6 Connect the black tank hose to the tank s fitting Open the tank valve 7 The automatic refill will add refrigerant to the internal storage vessel as the unit works However if you want to fill it immediately a press MAIN MENU b press SCROLL MENU then c press the TANK REFILL key 342000 Refrigerant Service Solution 27 OIL TIME WARNING If the vacuum pump has accumulated 600 minutes of operation without an oil change the following message will appear when the user enters vacuum mode CHANGE THE VACUUM OIL AS SOON AS POSSIBLE SEE THE MANUAL FOR INSTRUCTIONS Press START to continue with the vacuum procedure OIL CHANGE MENU PROCESS Under the setup menu one of the choices is CHANGE VACUUM OIL When entered the display shows REMAINING VACUUM TIME XXX X MINUTES
17. e c Close service coupler valves and disconnect hoses from the vehicle access ports d Close the valve on the external source tank NOTE During flushing most of the refrigerant is charged into the ve hicle A C system If you exit the flushing cycle prior to completion without having closed the valve the 342000 will automatically add refrigerant to the internal storage vessel and there will be no room to recover the refrig erant used for flushing e Remove the A C system orifice tube and reconnect the fittings to create a bypass f Disconnect the compressor block at the rear of the compressor g Attach the compressor block adapter provided in the flushing kit to the system side of the compressor block h Configure the block connectors as desired to provide forward or back flushing of the refrigerant The red high side connection hose from the 342000 is the refrigerant source and refrigerant flows through it into the system Open the red service coupler i Connect the filter housing to the desired return side of the adapter block and to the blue low side hose Open the blue service coupler j Make sure a flushing filter is properly installed in the flushing filter housing Open the isolation valve on the hose 342000 Refrigerant Service Solution IMPORTANT Always follow vehicle manufacturer s instructions for flushing The orifice tube must be removed and a TXV needs to be bypassed 21 3 Press
18. el Turn the unit OFF at the end of the day IMPORTANT OPERATING NOTES Change the filter drier when the display shows the CHANGE FILTER mes sage Follow the instructions for the changeover At temperatures exceeding 120 F 49 C wait 10 minutes between recovery jobs fT 342000 Refrigerant Service Solution 3 COMPONENT LOCATION AND IDENTIFICATION 342000 CONTROL PANEL High Side Low Side Gauge Gauge EN Display Function N Keys Numeric Keys 9 Main Power Refrigerant Switch kientiter Fiker Printer Arrow Display Contrast Keys Keys INST 0684 4 E 1999 Robinair SPX Corporation COMPONENT LOCATION AND IDENTIFICATION 342000 FRONT VIEW Cycle Complete Red Indicator Light Control Panel Convenient Built in Handle and Hose Storage Shelf for tools and accessories Oil Injection Bottle Filter Drier Access Polypropylene Oil Drain Bottle Cabinet for durability and light weight Large Wheels for mobility across Locking air lines power es Casters cords grates 342000 SIDE VIEW High Side and Low Side Hoses Convenient Handle with Field Service Couplers for moving unit ME N color coded Vacuum Pump Oil Level Sight Glass SE and Oil Fill Port i
19. es of air and R 134a refrigerant are combustible at elevated pressures These mixtures are potentially dangerous and may result in fire or explosion causing personal injury or property damage Additional health and safety information may be obtained from refrigerant and lubricant manufacturers This equipment is protected by one or more of the following patents US 4 938 031 5 005 369 5 248 125 4 261 178 4 768 347 Other U S and Foreign Patents Pending Introduction ii se Gl Ed NG nn 2 Glossary ol TFM SE am end ee 2 General Operating Guidelines EES eee EED ES EE ees 3 Component Location and Identification ii ER RA SE EE EE EE Ge Ee GEE 4 342000 Overview nn asie sede EK N NR ee deens ee an WE ER N ee 6 SAONE VEER Ee Ee Ee AA a ES ee 8 Number Keys Up Down Arrows Pressure Gauges nnen 9 Set Up INSIFUCTIONS anna tata 10 Initial Set Up Instructions se AA ee ee ee 10 ol NE EE OT OE OT EE N 12 Vehicles with Contaminated Systems 12 Testing Source TANKS sn ne 12 Operating Instructions iss ses se se WE ER Ki ei Ad ee Es ew N de aina 14 Diagnosing System Operation Using Snapshot Mode 14 Snapshot Mode Oprel stemmende RE GE 14 Recovering Refrigerant sesse ie ig ie N ee 16 Making RSR aanak 17 GEE VAGUES Ra EE ete 17 Replenishing A C System Oil 18 Charging the Vehicle ssh nent 19 Flushing the A C System unne AA Re Re ee ee 21 Help OPE GINS sentanensis 23 Maintenance INSIFUCTIONS ss sssssssncsnenaneennnssnanean
20. ilation or pipe exhaust to outside MS Vehicle exhaust fumes can cause injury or death To assist in system diagnostics the 342000 Snapshot mode allows the techni IMPORTANT cian to monitor and record key operating information from the vehicle being The automatic serviced This data includes air purge periodically e Date Time vents air Any e Ambient Temperature and Humidity brief release of h e Low Side System Pressure minimum value air you hear is e High Side System Pressure maximum value normal e Front Duct Temperature minimum value activation of the En air purge e Rear Duct Temperature minimum value ge e Refrigerant Identifier Results Additionally the amount of refrigerant recovered and refrigerant charged can be captured after completion of each of these operations SNAPSHOT MODE OPERATION Snapshot Mode displays operating data about the vehicle s A C system including refrigerant purity system pressure A C outlet temperature also IMPORTANT A C outlet air velocity with optional anemometer attachment The following Let the A C steps will guide you through the Snapshot Mode operation system run 1 Press the SNAPSHOT key or the SCROLL MENU key to reach a long enough to screen with the SNAPSHOT key reach typical operating tem 2 You will be prompted to perform the following steps peratures a Connect service hoses pressures b Open the service couplers c Connect both the red 15 ft and the blue 30 ft
21. ith extreme caution HIGH VOLTAGE ELECTRICITY INSIDE THE UNIT HAS A RISK OF ELECTRICAL SHOCK Exposure may cause personal injury Refer to the instruction manual for correct procedure when disconnecting the power TO REDUCE THE RISK OF FIRE do not use the unit in the vicinity of spilled or open containers of gasoline or other flammable substances An extension cord may overheat and cause fire If an extension cord is needed use the shortest possible cord with a minimum size of No 14 AWG DO NOT BREATHE REFRIGERANT Exposure may cause personal injury especially to the eyes nose throat and lungs Use this equipment in locations with mechanical ventilation that provides at least four air changes per hour or locate the equipment at least 18 inches above the floor To remove HFC 134a from the A C system use service equipment certified to meet the requirements of SAE J2210 HFC 134a recycling equipment If accidental system discharge occurs ventilate the work area before resuming service USE THE UNIT WITH ONLY R 134a REFRIGERANT The unit is for recovering recycling and recharging only R 134a refrigerant Do not attempt to adapt the unit for another refrigerant Do not mix refrigerant types through a system or in the same container mixing of refrigerants will cause severe damage to the unit and the vehicle air conditioning system DO NOT USE COMPRESSED AIR TO PRESSURE TEST OR LEAK TEST THE UNIT OR VEHICLE AIR CONDITIONING SYSTEM Some mixtur
22. lable press the key immediately below SCROLL MENU F 5 to go to another menu All five keys are not always active Follow the labels on the display There is always a selection for MAIN MENU Keypad and Function Keys 24 Jun 1999 TEMP 70 F 8 09 AM HUMIDITY 58 CHARGEABLE 7 30 lbs VOLTAGE 115 VAC Low 7 Hg HIGH 13 Hg MAIN MENU SELECT OPERATION Display amp Prompts Function Recover Vacuum Choices Function Keys UP DOWN RIGHT LEFT Arrow Keys Contrast Darker Contrast Main Menu shown with sample messages Lighter 1999 Robinair SPX Corporation NUMBER KEYS Use these keys to change the evacuation time vacuum level or recharge weight if you want an amount different than the default one shown on the display These keys are also used to enter other numeric values such as your area s elevation above sea level UP DOWN AND LEFT RIGHT ARROW KEYS Pressing the UP DOWN and RIGHT LEFT keys moves the cursor on the screen in that direction Up Down Right or Left In addition during numeric program ming pressing the UP arrow increases the number Pressing the DOWN arrow decreases the number PRESSURE GAUGES Both the high and low side gauges are equipped with red follower needles to show the maximum and the minimum pressures reached during operation The follower is carried with the pressure gauge to the highest or lowest operating pressure and stays there when the regular needle i
23. lly this becomes clogged with contaminants and must be replaced REPLACE THIS FILTER IMMEDIATELY 1 The filter is located on the top of the unit s control panel Unplug it and remove it from the unit 2 Plug in a new inlet filter GENERAL MAINTENANCE 1 On a regular basis wipe off the unit with a clean cloth to remove grease dust and other dirt 2 Periodically check the internal components for leaks over time fittings can loosen as the unit is moved Turn OFF the unit Disconnect it from the power source Open the front door panel and trace lines with a leak detector Also check connections on the back and sides of the unit Tighten any loose fittings or connections you may find You may also contact your local service center for maintenance instructions EE EE EE EE 342000 Refrigerant Service Solution 29 Description Part Number Anemometer 19698 Filter Drier Spin on 34724 Hose Red 96 63096 Hose Blue 96 62096 Identifier Filter 16912 Oil Bottle 17756 Printer Paper 34215 Service Coupler red 18191 Service Coupler blue 18190 Temp Probe 15 17915 Temp Probe 30 17930 30 eT TEE TF 1999 Robinair SPX Corporation fe 342000 Refrigerant Service Solution 31 ETT 32 1999 Robinair SPX Corporation This product is warranted to be free from defects in workmanship materials and components for a period of one year from date of purchase All parts and labor required to repair defective produc
24. loss Close the service couplers on the high and low side hoses Disconnect the hoses from the vehicle access ports PRE 342000 Refrigerant Service Solution 15 IMPORTANT If you operate the engine during recovery see warnings at the front of this manual and take extreme care to avoid moving parts IMPORTANT Press PAUSE to stop recovery at any time 16 RECOVERING REFRIGERANT Recovery speed and accuracy is highly dependent on underhood temperature and air flow across components Cold refrigerant can pool in the accumulator evaporator or condenser and will continue to increase system pressures even after the recovery process has ended For maximum recovery speed and accu racy bring the engine to operating temperature prior to recovering refrigerant Run the heater on maximum temperature maximum blower and recirculate DO NOT run the A C system as excessive oil loss will result NOTE There must be 25 psi in the system to recover refrigerant If there is not sufficient pressure you will be prompted to evacuate the system This step prevents inadvertent recovery of air or other contaminants from a leaking system Use the following steps to recover refrigerant 1 Be sure the vehicle engine is OFF 2 From the MAIN MENU press the RECOVER key or the SCROLL MENU key to move to the screen showing the RECOVER key 3 Follow the on screen prompts to connect the service hoses to the vehicle and open the service cou
25. n by accident e The product is misused tampered with or modified The product is used for recovering or recycling any substance other than the specified refrigerant type e Source tanks are not tested for purity prior to installation on the unit 342000 Refrigerant Service Solution CONVERSION TABLE Visit our web site at OZ LES www robinair com 0 5 0 03 1 0 0 06 or 15 0 09 20 0 18 call our toll free 2 5 0 16 3 0 0 19 z z B Technical Support Line at 4 0 0 25 45 028 800 822 5561 5 0 0 31 5 5 0 34 z z P in the continental U S and Canada 6 5 0 41 7 0 0 44 7 5 0 47 8 0 0 50 Certain state and local jurisdictions dictate that using this equipment to sell 8 5 0 53 refrigerant by weight may not be permitted We recommend charging for any 9 0 0 56 AIC service by the job performed 9 5 0 59 This weight scale provides a means of metering the amount of refrigerant 10 0 0 63 needed for optimum A C system performance as recommended by OEM 10 5 0 69 manufacturers 11 0 0 69 11 5 0 72 ioe ne Due to ongoing product improvements we reserve the right to i change design specifications and materials without notice 13 0 0 81 13 5 0 84 14 0 0 88 145 0 91 15 0 0 94 15 5 0 97 16 0 1 Ib ROBINAIR SPX Corporation 655 Eisenhower Drive Owatonna MN 55060 0995 USA Tech Services 1 800 822 5561 Fax 1 800 822 7805 Customer Service 1 800 533 6127 Fax 1 800 322 2890 Web site www robinair com 122247 Rev D 4 19 04 3
26. ndicates other pressures 1 The follower on the low side gauge should be adjusted so it rests on the bottom side of the black needle when the A C system is not in operation 2 The follower on the high side gauge should be adjusted so it rests on the top side of the black needle when the A C system is not in operation When set up this way the follower will be carried to the highest pressure or lowest pressure registered by the individual gauge Low Side Pressure Indicating High Side Needle black High Side Pressure Follower adjust so red needle rests Indicating Needle Needle red below the black needle black adjust so red LP needle rests above the black needle Low Side Follower Needle red nn 9 342000 Refrigerant Service Solution The unit display gives directions and explana tions based on current vehicle service status Read and follow these display prompts at all times IMPORTANT You can access the Set Up Menu at any time to change any of these selections by pressing SET UP MENU INITIAL SET UP INSTRUCTIONS CAUTION It is extremely important to follow these instructions DO NOT attach any hoses or accessories until prompted by the unit Improper set up will result in unit failure Use the following steps for initially setting up the 34200 1 Attach the power cord to a 115V 60 Hz 15 amp grounded outlet Do not use extension cords 2 Switch the Power Switch to
27. 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 WARNINGS A ST ALLOW ONLY QUALIFIED PERSONNEL TO OPERATE THE UNIT Before operating the unit read and follow a the instructions and warnings in this manual The operator must be a certified technician and must be familiar with air conditioning and refrigeration systems refrigerants and the dangers of pressurized components If the operator cannot read English operating instructions and safety precautions must be read and discussed in the operator s native language Si el operador no puede leer el ingl s las instrucciones de operaci n y las precauciones de seguridad deberan leerse y comentarse en el idioma nativo del operador Si l utilisateur ne peut lire l anglais les instructions et les consignes de s curit doivent lui tre expliqu es dans sa langue maternelle PRESSURIZED TANK CONTAINS LIQUID REFRIGERANT Do not overfill the internal storage vessel because overfilling may cause explosion and serious personal injury or death Do not recover or charge refrigerants into non refillable containers use only federally authorized refillable containers ALL HOSES MAY CONTAIN LIQUID REFRIGERANT UNDER PRESSURE Contact with refrigerant may cause personal injury Wear correct protective equipment including safety goggles Disconnect hoses w
28. plers if they are not already connected 4 Empty the 342000 oil drain bottle before starting the recovery process Press the START key to begin the recovery process 6 If sufficient pressure is detected the 342000 tests the vehicle system to determine the purity of the refrigerant in the vehicle system If the purity is sufficient recovery begins If the refrigerant is contaminated see page 12 Vehicles with Contaminated Refrigerant Before and immediately after recovery the 342000 will if necessary go into a clearing mode This mode clears all refrigerant from hoses and internal components into the tank to provide maximum recovery accuracy 8 When the system has been recovered to a vacuum of 9 Hg the recovery process stops automatically Several things occur at this time e The red indicator light flashes and the beeper sounds at completion e The display reads RECOVER COMPLETE and shows the weight of the recovered refrigerant e System oil is automatically drained into the oil drain bottle NOTE The unit will not go to any other function until the oil is fully drained 9 You now have the following options e Proceed with evacuation or repairs if needed e Press the RESTART RECOVERY key to remove any additional refrigerant which may have vaporized in the system 1999 Robinair SPX Corporation e Wait for the 342000 to automatically restart and pull any additional refrigerant which has vaporized in the sy
29. refrigerant from the hoses Failure to disconnect hoses will result in recovery of the vehicle s refrigerant Replace caps on the vehicle s access ports 9 Press the START key to recover refrigerant from the hoses A WARNING A Always close the service couplers prior to disconnecting from the system to prevent any release of refrigerant 20 1999 Robinair SPX Corporation FLUSHING PROCESS The 342000 provides a method of removing oil by forcing liquid refrigerant through the A C system or components of the A C system A special flushing adapter to access the system at the compressor block is available as an acces sory After flushing the refrigerant is recovered by the 342000 and is filtered by the recycling circuit returning it to SAE purity levels A C system configu rations vary and may require adapting and flushing of individual components NOTE The 342000 must have at least 7 lbs of refrigerant available for charging in the internal storage vessel Use the following procedure which works with an orifice tube system 1 Locate the 342000 MAIN MENU on the control panel and do the following a Press the SCROLL MENU key b Press the OIL FLUSH key 2 Follow the on screen instructions and consult any service bulletins as needed a Recover refrigerant as described under RECOVER on page 16 of this manual b Make sure the 342000 oil drain bottle on the side of the unit is empty and in place at this tim
30. ring the next A C system to prevent an inaccu rate oil charge NOTE If no oil was removed from the A C system during recovery DO NOT charge any oil into the A C system To use this function you must first pull a vacuum on the system This feature is accessed through the charge menu 1 Press the CHARGE key 2 Enter the amount of the charge 3 Press the NEXT key 4 Press and hold the OIL INJECT key 5 To charge press the START key NOTE The unit will only charge through the high side after oil inject 6 Select the correct oil for the A C system being serviced Refer to the vehicle manufacturer s service manual 7 Adjust the O Ring around the oil injector bottle to the required oil charge level For example if the bottle s oil level is at 4 ounces and you need 1 2 ounce of oil to replenish the A C system place the O ring at the 3 1 2 ounce level 8 Press the CHARGE key Press the NEXT key 1999 Robinair SPX Corporation NOTE Oil is injected through the High Side Red Service Hose and the High Side Hose must be connected to the A C system with the coupler valve open NOTE In order to draw oil into the A C system the system must be under vacuum see page 17 9 Press and hold the INJECT OIL key until the oil level reaches the O ring NOTE Refrigerant must be charged through the high side into the A C system after oil is injected to flush the oil from the hoses into the A C system You are now
31. s or kilograms HOSE RECOVER MODE Removes all excess refrigerant from the hoses FLUSH MODE Clears oil from the A C system by reversing the flow of refrigerant then filters out the contaminants SET UP MODE Allows you to configure the 342000 and run internal diagnostics IMPORTANT For your safety observe all warnings and cautions printed in this manual 6 ESET 1999 Robinair SPX Corporation COMPONENT LOCATION AND IDENTIFICATION 342000 Temperature and Velocity Probes located on back panel 9o FS SS Pot EER Le PROBE TEMP Phone IRAN Circuit Red RS232 Outlet Breakers Blue e Anemometer Temp Temp Probe Probe INST0687 A C System Close Up of Oil Drain Connection located on side panel near tank Oil Drain Bottle simply snaps into place Be sure the drain tube is inside the bottle INST0688 342000 Refrigerant Service Solution FUNCTION KEYS The function keys F 1 to F 5 change depending on the service operation and the unit s status The display shows five labels along the bottom with arrows pointing to the function keys below Each label shows what action a particular function key will activate To make a selection press the function key immediately below the label arrow This display is not a touch screen you must press the key As an example the last label in the illustration shows SCROLL MENU To see what other options are avai
32. snnsnnss 25 Changing the FINS DIEF ennemie 25 Electrical Protection zeereis eenen 27 Replacing the Source Tank se ooo nd ne 27 Oil TIE Warning tense E enen neede 28 Oil Change Menu Process scene 28 Replacing the Printer Paper ss 28 Replacing the ID Filter unserer 29 General Maintenance se ks OE ERK SEER EG EER eN dns 29 Replacement Parts anemonen SR EN GR KNAAG Sk ee ee 30 Warranty Information sesse KNAK s se Ed De Ee De Ne dk Inside back cover m 1 342000 Refrigerant Service Solution This manual contains important safety procedures concerning the opera tion use and maintenance of this product Failure to follow the instruc tions contained in this manual may result in serious injury If you are unable to understand any of the contents of this manual please bring it to the attention of your supervisor Do not operate this equipment unless you have read and understand the contents of this manual The 342000 is a complete air conditioning service center for R 134a It recovers recycles evacuates and recharges refrigerant quickly accurately and automatically with little attention needed from the technician A microprocessor controls the unit s functions and prompts on the display lead you through the operation These prompts are written so they are easy to understand and follow The entire service procedure can be done with one hook up to the vehicle A built in refrigerant identifier checks for contaminated refrigerant prior
33. stem this occurs after five minutes if a positive pressure is detected Additional recovered refrigerant is added to the amount shown on the screen NOTE If you have entered the RECOVERY mode through the SNAPSHOT mode the unit will automatically return to SNAPSHOT when you exit RECOV ERY and will give you an updated printout MAKING REPAIRS When all refrigerant has been removed from the vehicle make any repairs or component replacements Take the following steps before making repairs 1 Disconnect the unit from the vehicle 2 Close the high and low side service coupler valves 3 Disconnect the hoses from the vehicle access ports PULLING A VACUUM Prior to recharging a vehicle it is critical that you evacuate the system to remove any air Air can affect system operation but evacuation ensures air and other contaminants have been removed and that the system is ready for a recharge 1 If you have disconnected the 342000 to make repairs reconnect the blue low side and red high side service hoses and open the service connectors 2 Press the VACUUM key or press the SCROLL MENU key to find the screen with the VACUUM function key then press VACUUM to begin operation OR from the SNAPSHOT recovery mode press the SNAP SHOT SUMMARY key then press the MAIN MENU key 3 The default evacuation time of 15 00 minutes appears on the screen This function provides a minimum of three minutes of evacuation and will then shut off
34. t from the power source before making any repairs or replacements to components Risk of electrical shock 6 Open the unit s front panel remove the old filter drier and replace it with anew one Hand tighten the new filter Dispose of the used filter drier properly 7 Close the front panel door 8 Plug the power cord into an appropriate power supply Turn ON the main power switch The display will show the FILTER CHANGE mode Follow the on screen prompts 9 Press the START key The unit will run briefly to pull an internal vacuum removing any air that entered the system during the changeover 10 Press MAIN MENU to exit when the process is complete 26 1999 Robinair SPX Corporation ELECTRICAL PROTECTION The 342000 monitors voltage and disables circuitry if the voltage drops below 103 5 volts or increases above 135 volts It also detects incorrectly wired connections and warns of the potential hazard Additionally the 342000 is protected by circuit breakers located on the back panel see page 7 If the circuit breaker trips all power to the unit is lost Press the circuit breaker button to reset REPLACING THE SOURCE TANK Periodically the source tank on the back of the unit will run out of refrigerant The internal storage vessel contains enough refrigerant for several jobs but it s important to replace the tank soon after the message is displayed so that To reduce the you don t deplete the refriger
35. the NEXT key If the refrigerant has not been recovered the 342000 will now identify and recover It then prompts you to make proper system connections as outlined above prior to evacuation or pulling a vacuum 4 Press the VACUUM key Choose the default or program the evacuation mie ka time then press the START key The unit begins evacuation to remove air emember to in the system replace system oil Flushing 5 Next the display asks for a flush time The default time is 10 minutes removes all oil You can change the flush time using the numeric keys Press the START from the key to accept the time and begin the flush procedure system Follow instructions r packedwith amp WARNING A the oil injector Do not disconnect service couplers during flushing Doing so will cause refrigerant to spray out of the fittings 6 The 342000 flushes the system for the designated amount of time then goes into a CLEAR mode as it recovers refrigerant from the system NOTE If the external flushing filter plugs you will be prompted to change the filter 7 The unit automatically drains any collected oil into the graduated oil drain bottle on the side of the 342000 Remove this bottle measure the oil and dispose of the oil according to local state and federal regulations Be sure to replace lost oil with an equal amount of new oil 8 The display shows FLUSHING COMPLETE when the process is finished Close service couplers
36. tion is not covered by the warranty 1999 Robinair SPX Corporation TESTING SOURCE TANKS continued To sample a source tank follow these instructions 1 pa D Al DA A A Lo 10 Recover any refrigerant left in the hoses by pressing the RECOVER key Attach a 1 2 acme x low side adapter to the source tank Use the vapor valve on the refillable tanks Attach the blue low side service hose to the adapter and open the coupler Open the source tank valve Turn ON the 342000 Press the SNAPSHOT key Press the START key The 342000 now samples the contents of the source tank Once the sampling process is complete a close the tank valves b recover the refrigerant from the hoses and c reattach the blue low side hose to the low side port on the unit Check the unit s display to determine if the source tank is contaminated Then do one of the following e If the source tank is uncontaminated press the TANK REFILL key and follow the instructions on the display e If the source tank is contaminated disconnect the blue hose and remove the tank from the unit 342000 Refrigerant Service Solution 13 DIAGNOSING SYSTEM OPERATION USING SNAPSHOT MODE A WARNING A Always wear eye protection and protective clothing when D working with refrigerants Observe all warnings at the beginning of this manual Be sure the vehicle is in PARK before turning on the engine Provide adequate vent
37. to recovery Pressures are shown on the high and low side gauges and other operating information is shown on the display Refrigerant is recovered into and charged out of an internal storage vessel ISV The 342000 unit automatically refills this vessel with refrigerant from an external source tank as needed in order to maintain a constant 12 15 Ibs 5 45 6 82 kgs of refrigerant available to be charged Quick connections are all that s needed to replace the source tank when it s empty Other time saving features include automatic air purge single pass recycling and automatic oil drain The unit also automatically clears refrigerant after every job A red light on the top of the unit flashes whenever a process is complete or when the unit needs attention from the user The 342000 is UL listed and meets SAE specifications for recycled refrigerant Glossary of Terms A C Air conditioner or air conditioning A C System The vehicle air conditioning system Unit The refrigerant recovery recycling recharging unit 342000 Source Tank The refrigerant source tank ISV Internal Storage Vessel 1999 Robinair SPX Corporation GENERAL OPERATING GUIDELINES Use the following guidelines when operating the 342000 1 The voltage at the unit must be 10 of the unit s rated voltage Errors will be displayed on the screen Extension cords must be a minimum of 14 AWG and kept as short as possible Common causes for electrical
38. ts covered under the warranty will be at no charge The following restrictions apply 1 The limited warranty applies to the original purchaser only 2 The warranty applies to the product in normal usage situations only as de scribed in the Operating Manual The product must also be serviced and maintained as specified 3 If the product fails it will be repaired or replaced at the option of the manu facturer 4 Transportation charges for warranty service will be reimbursed by the factory upon verification of the warranty claim and submission of a freight bill for normal ground service Approval from Robinair must be obtained prior to shipping to either an authorization service center or the factory 5 Warranty service claims are subject to factory inspection for product defect s 6 Robinair shall not be responsible for any additional costs associated with a product failure including but not limited to loss of work time loss of refrig erant and unauthorized shipping and or labor charges 7 All warranty service claims must be made within the specified warranty period Proof of purchase date must be supplied to the manufacturer 8 Use of Robinair recovery recycling equipment with unauthorized refrigerants will void our warranty Authorized refrigerants are listed on the equipment or are available through our Technical Service Department This Limited Warranty Does Not Apply If e The product or product part is broke
39. unt to charge press the NEXT key to enter your selections 5 You will now be prompted to press the START key to begin the charging process or the BACK key to change variables nnn 19 342000 Refrigerant Service Solution 6 Upon pressing the START key the 342000 begins to charge the A C system 3 IMPORTANT Do not disturb or bump the 342000 during charge IMPORTANT ee t ffect the ch If the coupler as any jarring movement can aftec e charge accuracy valves on the NOTE If insufficient pressure differential exists between the tank and high or low system charging suspends and the 342000 goes into a power charge mode side are left to increase tank pressure to complete the charge This normally occurs open the only when the 342000 has been in a very cool environment prior to use system will nae ie pull the 7 When charging is complete the red indicator light flashes and the beeper refrigerant sounds to indicate the process is complete The 342000 automatically goes back out of the to the SNAPSHOT mode allowing you to provide an after service snap vehicle shot of key operating information See page 14 for details on the SNAP SHOT mode 8 Press the DONE key to exit the SNAPSHOT mode and prepare for the next service job or press CHARGE MORE to add more refrigerant IMPORTANT You are now prompted to close the service cou plers and disconnect the service hoses This step is very im portant to ensure the 342000 recovers any residual
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