RobinAir Cool Tech High Performance Vacuum Pump 15434 User's Manual
Contents
1. 2 Close the manifold valve between the pump and the system Turn the Iso Valve to the CLOSED position Remove the hose from the pump inlet 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 Cap the inlet port to prevent any contamination or loose particles from entering the port To maintain your high vacuum pump Vacuum Pump Oil Oil Change Procedure For maximum performance Robinair recommends changing vacuum pump oil after each use The condition and type of oil used in any high vacuum pump are extremely important in determining 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 convenient gallon containers Order by part number 13203 Quart shipped 12 quarts per case 13204 Gallon shipped 4 gallons per case 1 Be sure the pump is warmed up 2 Remove the OIL DRAIN cap Drain contaminated 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 32. E A A Lag 7 5 gj 5 so ot 5 2 89 OS Sx O q S Cha er co ES hois ES ES ga 52 p E ZS o Bn 2 Ge P N d oc CoolTech High Performance Vacuum Pumps Iso Valve High Vacuum Rating Multiple Refrigerant Capability Directed Exhaust Gas Ballast Sure Grip Handle Compact Design Congratulations on purchasing one of Robinair s top quality CoolTech vacuum pumps Your pump has been engineered specifically for air conditioning and refrigeration service and is built with Robinair s proven offset rotary vane for fast thorough evacuation You ll appreciate these key features Allows the pump to be shut off while still connected to the A C R system which is handy for checking rate of rise With the valve handle in the OPEN position the pump is open to the system being evacuated In the CLOSED position the pump is isolated from the system 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 The 15434 can be used for R 12 R 22 R 500 and R 502 as well as for R 134a The inlet tee has both 4 SAE male flare and 1 2 Acme fittings to accommodate hoses from either type of manifold The exhaust is expelled through the handle to direct it away from the service technician A precise amount of atmospheric air is introduced into the pump preventing condensation
3. 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 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 Your pump measures approximately 15 long while aluminum housing and offset rotary vanes keep the pump weight low making it easy to carry Nn A L Pump Components Intake Fitting upper fitting is 1 2 Acme side fitting is 4 SAE Gas Ballast Valve located beside handle base Oil Fill Port Sight Glass Die Cast Aluminum Housing Oil Drain 7 Molded Polycarbonate Base 8 Iso Valve Isolates the pump from the system 9 Powerful High Torque Motor 10 Power Switch 11 Through The Handle Exhaust 12 Sure Grip Handle 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 refrigerants A WARNINGS A Always wear goggles when working with refrigerant Contact with refrigerant may cause injury Improper use or connections may cause electrical shock hazards Read and follow the instructions carefully and take precautions to avoid electrical shock hazards Be sure that all associated devices are properly grounded before energizing circu
4. 5 in Intake 1 2 Acme and 4 Flare Min Starting Temp at 90 Voltage 32 F Motor Size 1 3 hp Capacitor Start Operating Temp 155 F Note 1 All motors are internally protected automatic reset 2 Operating temperatures are typical for normal operating conditions Due to ongoing product improvements we reserve the right to change design specifications and materials without notice RROBINAIR SPX Corporation 655 Eisenhower Drive Owatonna MN 55060 0995 USA Technical 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 115247 Rev B 04 14 03 CoolTech Pump Manual 15434 SPX Corporation
5. When 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 approximate oil capacity of the pump is 13 ounces To Clean The Pump 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 drain the oil from the pump and remove the six screws holding the reservoir cover Lift the cover off the pump and wipe out the inside of the reservoir with a rag 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 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 Troubleshooting Guide F
6. ailure To Start Oil Leakage Failure To Pull A Good Vacuum 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 watranty may be voided by misuse or customer tampering which results in the pump being inoperable Check the line voltage Robinair pumps are designed to start at 10 line voltage loaded at 32 F 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 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 replacement kit part number 15367 If leakage exists in the area of the oil drain plug you may need to reseal the plug using a commercial pipe thread sealer 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 connections are in good conditon and leak free You can confirm leakage by monitoring the vacuum with a thermistor gauge while applying vacuum pump oil at connec tions or suspected leak points The vacuum will improve briefly while the
7. its The 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 con tamination 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 dis charge 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 pres sures These mixtures are potentially dangerous and may result in fire or explosion causing injury or property damage Additional health and safety information may be obtained from refrigerant and lubricant manufacturers Before using your vacuum pump Note on Motor Voltage Connections 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 be sure the
8. 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 When You Need Help 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 If these procedures do not correct the problem contact your nearest Robinair distributor The distributor may recommend an additional replace ment part this manual contains a parts list or suggest you send your pump to the nearest authorized service center Call Robinair s toll free Technical Support Line for further information You may also visit our website at www robinair com for technical support 800 822 5561 Warranty Coverage Out of Warranty 10 Robinair CoolTech vacuum pumps are warranted against defects in material and workmanship for one year of normal use from the date of purchase See your distributor for warranty details A pump which is no longe
9. r covered by the one year warranty period and which fails to operate properly should be returned to the distributor or an authorized Robinair Service Center with a full written explanation of the problem Before returning an out of warranty pump review all maintenance procedures to avoid an unnecessary return Replacement parts are available for doing your own service Replacement Parts Part Oil Drain Cap brass qty 6 Oil Drain includes cap Cover Kit includes items 1 2 4 5 16 Oil Fill Cap includes Gas Ballast Valve 6 Inlet Tee Fitting includes caps Inlet Cap 2 Acme qty 2 Inlet Cap 4 flare nylon qty 6 Vent Bolt includes O rings Handle Power Cord and Switch Assembly Motor Coupling Iso Valve Assembly Base and Foot Assembly Module Assembly includes items 1 9 amp 14 Replacement Seal Kit not shown Figure 10 11 12 13 14 15 16 17 Part No 40572 48116 15337 15371 15495 15330 41139 15338 15366 15344 48103 15368 15369 15547 15367 11 INST0001 Because of ongoing product improvements we reserve the right to change design specifications or materials without notice 12 VacuMaster Pump Specifications Free Air Displacement 4 CFM Stages 2 Motor Speed 1725 RPM Voltage 10 115V 60 HZ Factory Micron Rating 20 microns Approximate Oil Capacity 13 oz Weight 29 Ibs Width 5 s in Height 9 4 in Length 1
10. s to the system Before connecting your vacuum pump to an A C R system remove refrigerant from the system in an accepted manner using an approved recovery unit Damage to the pump may occur if evacuation is started while the system is under high pressure 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 To help prolong pump life and promote easy starting follow these procedures for shutdown 1
11. voltage and frequency at the outlet match the specifications 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 sure the gas ballast valve is closed Remove and discard the exhaust plug from the end of the pump s handle 2 The pump is shipped without oil in the reservoir Before starting the pump fill it 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 Approximate oil capacity of pump 13 ounces 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 CAUTION Your pump is now ready to evacuate air conditioning and refrigeration systems Follow normal service procedures and the A C R manufac turer s instructions for connection
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