RobinAir High Performance Vacuum Pump 15444 User's Manual
Contents
1. OUNAE Operating Manual Manuel del Operador Model Nos 15424 15448 15444 High Performance Vacuum Pump Modele 15424 15448 15444 Bombas de Vac o de Alto Rendimiento 3 O sa T Q O Table of contents Warnings aiii 2 PUMP COMPONENTS cccooccccnnccccnncnconnonnonanononanononanos 2 Robinair high performance vacuum pumps 3 Before using your VACUUM PUMD 0 ccceeeeeeees 4 To use the gas ballast feature oooncccccconncnnc 5 To shut down your pump after use 5 To maintain your high vacuum pUMP cccocccccnccc 5 Vacuum pump Oil waavainesieincssenredoeeciesnddcuueamenmnees 5 Oil change procedure c oooocccccccononcconccnccnnononnnnnos 5 Cleaning your DUMP veicccsceesisse corrects eee ic 5 Troubleshooting guide ccooonoccoccononccnonononononos 6 Failure O Sta encara trote 6 1 ASA 6 Failure to pull a good vacuUM occoocccccnccccnnccnnno 6 Robinair pump specificatiOnsS oocccccoonnconoc 6 Replacement parts ccoooccccnccncccoconoconoconanoninacnnnnas 7 Warranty coverage ccooooocccccononcnnonononnnonannoncnnnnnonono 7 Out of warranty artrsiciseico ion ceeiiltenia da 7 For use on A C R systems using CFCs HCFCs and HFCs in conjunction with mineral oil ester oil alkylbenzene oil and PAG oil as lubricants Not for use with ammonia or lithium bromide systems Not for use with flammable refrigerants2. A Warnings A Wear safety goggles when working with refrigerants Refrigerants can cause eye injury Incorrect use or connections may cause electrical shock hazards Read and follow the instructions carefully and take precautions to avoid electrical shock hazards All associated devices must be grounded before energizing circuits Normal operating temperature will cause certain external portions of the pump to be hot to the touch Do not touch the pump housing or motor during operation Use separate manifolds and hoses for R 134a systems Cross contamination with other refrigerant types will cause severe damage to the A C system and to service tools and equipment Do not mix refrigerant types through a system or in the same container Avoid breathing refrigerant and lubricant vapor or mist Exposure may irritate eyes nose and throat To remove R 134a from the A C system use service equipment certified to meet the requirements of SAE J2210 R 134a recycling equipment If accidental system discharge occurs ventilate work area before resuming service HFC 134a service equipment or vehicle A C systems should not be pressure tested or leak tested with compressed air Some mixtures of air HFC 134a have been shown to be combustible at elevated pressures These mixtures are potentially dangerous and may result in fire or explosion causing injury or property damage Additional health and safety
3. Close the manifold valve between the pump and the system 2 Turn the Iso Valve to the CLOSED position 3 Remove the hose from the pump inlet 4 Turn the pump power switch to OFF then return the Iso Valve to the OPEN position for a few seconds to relieve any vacuum inside the pump 5 Cap the inlet port to prevent any contamina tion or loose particles from entering the port To maintain your high vacuum pump For maximum performance Robinair recom mends changing vacuum pump oil after each use Vacuum pump oil The condition and type of oil used in any high vacuum pump are extremely important in deter mining the ultimate attainable vacuum Robinair recommends the use of our Premium High Vacuum Pump Oil This oil has been specifically blended to maintain maximum viscosity at normal running temperatures and to improve cold weather starts Robinair Premium High Vacuum Pump Oil is available in handy quart containers or in conve nient gallon containers Order by part number 13203 Quart shipped 12 quarts per case 13204 Gallon shipped 4 gallons per case Oil change procedure 1 Be sure the pump is warmed up 2 Remove the OIL DRAIN cap Drain contami nated oil into a suitable container and dispose of properly Oil can be forced from the pump by opening the inlet and partially blocking the exhaust with a cloth while the pump is running Do not operate the pump for more than 20 seconds using this method 3 When
4. cm A T 24 8 cm LENO Misa dc a 40 cm Intake oooooocccccncnnnnoncnncnnnnans 1 4 MFL and 1 2 Acme Min Starting Temp at 90 Voltage 0 C Motor SIZO sers a E 1 3 HP Capacitor Start Operating Temp ccoocccccccnnncnccnccncononacononanonos 68 C NOTE 1 All motors are internally protected automatic reset 2 Operating temperatures are typical for normal operating conditions 3 Model 15448 has a bipolar side grounded plug 4 Model 15444 has an Australian plug type AS3112 U S Patents 4 523 897 5 209 653 Other U S and Foreign Patents Pending Because of ongoing product improvements we reserve the right to change design specifications or materials without notice INSTOOO1 Replacement parts Warranty coverage 0000000000000909090 0000000000000909090 Part Figure Order Robinair CoolTech vacuum pumps are war Oil Drain Cap qty 6 1 40572 ranted against defects in material and workman l SS ship for one year of normal use from the date of SD ais purchase See your distributor for warranty includes cap and drain 2 48116 details Module Cover Kit 3 15337 includes items 1 2 4 5 o ee ania Oil Fill Cap 4 15371 pump which is no longer covered by the one year warranty period and which fails to operate includes item 6 properly should be returned to the distributor with O 5 D Q my Q m C D Intake Tee Fitting a full written explanation of the problem The in
5. information may be obtained from refrigerant and lubricant manufacturers Pump Components Refer to graphic on next page 1 Intake Fitting upper fitting is Acme side fitting is MFL 2 Gas Ballast Valve located beside handle base 3 Oil Fill Port 4 Sight Glass 5 Die Cast Aluminum Housing 6 Oil Drain 7 Molded Polycarbonate Base 8 lso Valve isolates pump from system 9 High Torque Motor 10 Power Switch 11 Through the Handle Exhaust 12 Sure Grip Handle CoolTech high performance vacuum pumps Congratulations on purchasing one of Robinair s top quality CoolTech vacuum pumps Your pump has been engineered specifically for air condition ing and refrigeration service and is built with Robinair s proven offset rotary vane for fast thorough evacuation You ll appreciate these key features Iso Valve Allows the pump to be shut off while still con nected to the A C R system which is handy for checking rate of rise With the valve handle in the Oper position the pump is open to the system being evacuated In the Close position the pump is isolated from the system High vacuum rating The two stage offset rotary vane design provides powerful quiet high vacuum capability and assures moisture removal while the high pumping capacity reduces evacuation time Multiple refrigerant capability This pump can be used for R 12 R 22 R 500 and R 502 as well as for R 134a The inle
6. monitoring the vacuum with a thermistor gauge while applying vacuum pump oil at connections or suspected leak points The vacuum will improve briefly while the oil is sealing the leak 3 Be sure the pump oil is clean A badly contaminated pump may require several oil flushes See OIL CHANGE PROCEDURE NOTE Use only high vacuum pump oil Other oils will prevent pull down to a deep vacuum 4 Check to be sure the gas ballast knob is tightly closed 5 Be sure the oil is at the proper level For maximum pump operation the oil must be even with the OIL LEVEL line on the sight glass when the pump is running See OIL CHANGE PROCEDURE Do not overfill operating temperatures will cause the oil to expand so it will appear at a higher level than when the pump is not running To check the oil level start the pump with the inlet capped Check the oil level in the sight glass Add oil if necessary CoolTech pump specifications Model 15424 15448 15444 Frequency Range c cccccssssseseseeenees 50 60 Hz Free Air Displacement ccccseeeeeeeeeees 4 cfm 94 I m 50 Hz 113 I m 60 Hz SA EEN 2 Motor Speed oocccccccccccccocococncos 1425 rom 50 Hz 1725 rom 60 Hz Voltage Range occccoocccnononconenccnanonona os 110 115V 220 250V Factory Micron Rating ooccccccocc 20 microns Approximate Oil Capacity ccccoooccnc 400 ml VVC IG Nba ao 14 5 kg MI E RE sono renee icons escalas 14 3
7. the flow of oil has stopped tilt the pump forward to drain residual oil 4 Replace the OIL DRAIN cap Remove the OIL FILL cap and fill the reservoir with new vacuum pump oil until the oil just shows at the bottom of the sight glass The approxi mate oil capacity of the pump is 400 millili ters 5 Be sure the inlet ports are capped then turn ON the pump Allow it to run for one minute then check the oil level If the oil is below the sight glass OIL LEVEL line add oil slowly with the pump running until the oil reaches the OIL LEVEL line Replace the OIL FILL cap making sure the inlet is capped and the drain cap is tight 6 If the oil is badly contaminated with sludge that forms when water is allowed to collect in the oil you may need to remove the oil reservoir cover and wipe it out Repeat this procedure as required until the contamination is removed Replace the OIL DRAIN cap and refill the reservoir to the proper level with fresh pump oil See Step 4 Cleaning your pump Clean the pump with soap and water only Do not use commercial cleaners that contain degreasing agents that can damage polycarbonates The pump handle and base are made of Lexan one of the toughest polycarbonate plastics available However it is sensitive to degreasing agents Lexan is a registered trademark of General Electric Motor Lubrication After three years of normal service or one year of heavy duty service add oil annually Use electri
8. c motor oil or SAE 10 oil O 5 D Q m Q C D E 3 D c Q Q O Troubleshooting guide Your CoolTech pump has been designed for dependable use and long life If something should go wrong however the following guide will help you get the pump back into service as quickly as possible If disassembly of the pump is required please check your warranty The warranty may be voided by misuse or customer tampering which results in the pump being inoperable Failure to start Check the line voltage Robinair pumps are designed to start at 10 line voltage loaded at 0 C At extremes however switching between the start and run windings may occur When starting the pump in cold temperatures be sure the Iso Valve and inlet port are open to free air Oil leakage 1 Be sure the oil is not a residual accumulation from spillage etc 2 If leakage exists the module cover gasket or the shaft seal may need replacing Follow the instructions supplied with the seal replace ment kit part number 15367 If leakage exists in the area of the drain plug you may need to reseal the plug using a commercial pipe thread sealer Failure to pull a good vacuum 1 Be sure the Iso Valve on the pump is in the OPEN position and the gas ballast knob is tightly sealed 2 Be sure the vacuum gauge and all connec tions are in good conditon and leak free You can confirm leakage by
9. cludes caps 1 15495 distributor may suggest returning the pump to the Intake Cap Acme 8 15330 factory Before returning an out of warranty Intake Cap 1 4 flare qty 6 9 A1139 pump review all maintenance procedures to l avoid an unnecessary return Replacement parts Vent Bolt includes O rings 10 15338 are available for doing your own service Power Cord and Switch Assembly 11 15366 Motor 12 15665 Coupling 13 48103 Iso Valve Assembly 14 15368 Base and Foot Assembly 15 15369 Replacement Module 16 15547 includes items 1 9 amp 14 Seal Replacement Kit not shown 15367 NOTICE Airborne Noise Emissions This equipment has been tested for airborne noise emission per the Council Directive for Machinery 89 392 EEC Section 1 7 4 Instructions Essential Health and Safety Requirements Sound levels do not exceed 80dB A actual value wey Call our International Customer Service Line at 1 507 455 7223 To help us serve you better please be prepared to provide the model number serial number and date of purchase To validate your warranty you must complete the warranty card included with the unit and return it within ten days from the purchase date If your unit needs replacement parts please contact your local distributor If your unit needs repairs you may locate service centers at www robinair com or by calling International Customer Service Due to ongoing product improvements we reserve the right to c
10. hange design specifications and materials without notice The unit s weight scale provides a means for metering the amount of refrigerant needed for optimum air conditioning system performance as recommended by OEM manufacturers Do not use the unit to sell refrigerant by weight because this may not be permitted by certain local jurisdictions 655 Eisenhower Drive Owatonna MN 55060 USA Technical Services 1 800 822 5561 Fax 1 866 259 1241 Customer Service 1 800 533 6127 Fax 1 800 322 2890 www robinair com 115248 Rev C March 24 2014 Bosch Automotive Service Solutions LLC
11. mp s handle 2 The pump is shipped without oil in the reservoir Before starting the pump fill with oil Remove the OIL FILL cap black plastic plug directly in front of the handle and add oil until oil just shows in the bottom of the sight glass The approximate oil capacity of the pump is 400 milliliters 3 Replace the OIL FILL cap and remove the cap from one of the inlet ports Turn the Iso Valve to OPEN Turn the motor switch to ON When the pump runs smoothly turn the Iso Valve to CLOSED and replace the cap on the inlet port This may take from two to 30 seconds depending on the ambient temperature After the pump runs for approximately one minute check the sight glass for proper oil level oil should be even with the sight glass OIL LEVEL line Add oil if necessary NOTE When the pump is running the oil level should be even with the line on the sight glass Underfilling will result in poor vacuum perform ance Overfilling can result in oil blowing from the exhaust Your pump is now ready to evacuate air condition ing and refrigeration systems Follow normal service procedures and the A C R manufacturer s instructions for connections to the system GROUND SCREW NOTE External power leads are always connected to terminals INTERNAL VOLTAGE CONNECTION MOTOR LOW HIGH LEAD VOLTAGE VOLTAGE General Electric Motors CAUTION Before connecting your vacuum pump to an A C R system remove refrigerant f
12. power source h NOTE EXTERNAL POWER LEADS ARE ALWAYS CONNECTED TO TERMINALS 1 AND 4 3 gt EMERSON INTERNAL VOLTAGE CONNECTION MOTOR LOW HIGH LEAD WOLTAGE VOLTAGE roms O s Oom fs INSTOISO Emerson Motors To use the gas ballast feature Moisture from the A C R system that is carried into the pump as a vapor tends to condense into a liquid and combine with the vacuum pump oil When moisture contaminates the pump oil it reduces the pump s ability to reach its ultimate deep vacuum level The gas ballast valve purges a small amount of atmospheric air through the exhaust chamber This extra volume of air mixes with the vapor from the refrigerant system to prevent condensation and to help exhaust moisture in the form of vapor from the pump To use the gas ballast start the pump and open the gas ballast valve until the system has reached approximately 1000 3000 microns Close the valve to allow the pump to pull down to its ultimate vacuum level The gas ballast valve is located beside the handle opposite the inlet fitting The gas ballast valve may be opened or closed at any time during pump operation It is fully open at two turns counterclockwise NOTE Robinair recommends the use of a thermistor vacuum gauge to most accurately measure vacuum levels To shut down your pump after use 0000000000009 To help prolong pump life and promote easy starting follow these procedures for shutdown 1
13. rom the system in an accepted manner Damage to the pump may occur if evacuation is started while the system is under high pressure Robinair recommends use of our Refrigerant Recovery and Recycling equipment Wiring Instructions The CoolTech features dual voltage ranges Before operating the pump read and follow these rewiring instructions if necessary to be sure your pump is wired for the appropriate voltage CAUTION Unplug the unit before beginning any service work Improper use or connections can cause electrical shock Only qualified personnel should perform service work The CoolTech vacuum pump is factory wired for a high voltage range of 220 to 240 volts To wire the switch for a low voltage range of 110 volts to 115 volts follow these steps 1 Disconnect the unit from the AC power source before proceeding 2 Loosen the screws on the plate at the rear of the motor and carefully move the plate aside to clear the opening 3 Disconnect the leads and reconnect for low voltage following the diagram and chart High voltage connections are also shown if you want to rewire at some time 4 Check to see that all connections are secure and that there are no short circuits Be sure the grounding connector is properly connected 5 Re install the plate on the rear of motor with the screws which were loosened in Step 2 IMPORTANT Check for short circuits using a continuity tester before reconnecting to the AC
14. t tee has both 1 4 MFL and 1 2 Acme fittings to accom modate hoses from either type of manifold Directed exhaust The exhaust is expelled through the handle to direct it away from the service technician Gas ballast A precise amount of atmospheric air is introduced into the pump preventing condensation of moisture vapor and helping maintain the purity of the pump oil By using the gas ballast the pump operates more efficiently and pump life is extended Sure grip handle The one piece molded handle makes it easy to carry the pump to and from job sites and the handle stays cool to the touch during operation Compact design Your pump measures approximately 40 cm long while aluminum housing and offset rotary vanes keep the pump weight low making it easy to Carry O T D Q np 3 O y C A E 3 D c Q Q O Before using your vacuum pump In all cases motors are designed for operating voltages plus or minus 10 of the normal rating see SPECIFICATIONS Single voltage motors are supplied fully connected and ready to operate 1 Check to make certain the voltage and frequency at the outlet match the specifica tions on the pump motor decal Check the ON OFF switch to be sure it is in the OFF position before you plug the pump into an outlet Check to be certain the gas ballast valve is closed Remove and discard the exhaust plug from the end of the pu
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