High Performance Vacuum PumpModel 15401/15601/15603/15605/15607Operating Manual ......................................... 2

Bombas de Vacío de Alto RendimientoModelo 15401/15601/15603Manuel del Operador ................................... 8

Pompe à Vide à Haut RendementModèle 15401/15601/15603Manuel d’utilisation..................................... 16

Hochleistungs-VakuumpumpeModelle 15401/15601/15603Bedienungsanleitung.................................. 24

Table of contentsCoolTech® high performancevacuum pumps ................................................... 2Pump components .............................................. 3Warnings ............................................................. 3Before using your vacuum pump ....................... 4To use the gas ballast feature ............................ 5To shut down your pump after use .................... 5To maintain your high vacuum pump ................. 5

Vacuum pump oil ........................................... 5Oil change procedure .................................... 5Cleaning your pump ....................................... 5Motor lubrication ............................................. 5

Troubleshooting guide ........................................ 6Failure to start ..................................................... 6

Oil leakage ..................................................... 6Failure to pull a good vacuum ........................ 6

CoolTech® pump specifications ........................... 6Replacement parts .............................................. 7Warranty coverage .............................................. 7

Out of warranty ............................................... 7

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CoolTech® high performancevacuum pumpsCongratulations on purchasing one of Robinair’stop quality CoolTech® vacuum pumps. Your pumphas been engineered specifically for air condition-ing and refrigeration service, and is built withRobinair’s proven offset rotary vane for fast,thorough evacuation.You’ll appreciate these key features...Iso-ValveTM

Allows the pump to be shut off while still con-nected to the A/C-R system, which is handy forchecking rate of rise. With the valve handle in the“Open” position, the pump is open to the systembeing evacuated. In the “Close” position, thepump is isolated from the system. This minimizespump oil pulled into the pumping module, makingstart-up easier and reducing wear and tear on thepump components.High vacuum ratingThe two-stage, offset rotary vane design providespowerful, quiet high vacuum capability andensures moisture removal, while the high pumpingcapacity reduces evacuation time.Lifetime filtrationThe intake filter prevents foreign matter fromentering the pumping chamber, and an internalexhaust filter separates oil vapor from theexhaust flow.Directed exhaustThe exhaust is expelled through the handle todirect it away from the service technician.Gas ballastA precise amount of atmospheric air is introducedinto the pump, preventing condensation ofmoisture vapor and helping maintain the purity ofthe pump oil. By using the gas ballast, the pumpoperates more efficiently and pump life isextended.Sure-grip handleThe one-piece, molded handle makes it easy tocarry the pump to and from job sites, and thehandle stays cool to the touch during operation.Compact designYour pump measures approximately 40 cm long,while aluminum housing and offset rotary vaneskeep the pump weight low, making it easy tocarry.

For use on A/C-R systemsusing CFCs, HCFCs and HFCsin conjunction with mineral oil,ester oil, alkylbenzene oil andPAG oil as lubricants. Not foruse with ammonia or lithiumbromide systems. Not for usewith flammable refrigerants.

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Pump components1. Intake Fitting2. Gas Ballast Valve (located

beside handle base)3. Oil Fill Port4. Sight Glass5. Die-Cast Aluminum Housing6. Oil Drain7. Molded Polycarbonate Base8. Iso-ValveTM — Isolates the pump

from the system9. Powerful, High Torque Motor

10. Power Switch11. Through-The-Handle Exhaust12. Sure-Grip Handle

WarningsWhen working with refrigerants,goggles should always be worn.Contact with refrigerants may causeinjury.Improper use or connections maycause electrical shock hazards. Studyand follow the instructions carefullyand take precautions to avoid electri-

cal shock hazards. Be sure that all associateddevices are properly grounded before energiz-ing circuits.

The normal operating temperature willcause certain external portions of thepump to be hot to the touch. Do nottouch the pump housing or motor

during operation.

NOTICE: Airborne Noise EmissionsThis equipment has been tested for airborne noise emission perthe Council Directive for Machinery (89/392/EEC) Section 1.7.4Instructions — Essential Health and Safety Requirements.Sound levels do not exceed 80dB(A) actual value.

In all cases, motors are designed for operatingvoltages plus or minus 10% of the normal rating(see SPECIFICATIONS).

1. Check to make certain the voltage andfrequency at the outlet match the specifica-tions on the pump motor decal. Check theON-OFF switch to be sure it is in the OFFposition before you plug the pump into anoutlet. Check to be certain the gas ballastvalve is closed. Remove and discard theexhaust plug from the end of the pump’shandle.

2. The pump is shipped without oil in thereservoir. Before starting the pump, fill withoil. Remove the OIL FILL cap (black plasticplug directly in front of the handle) and addoil until oil just shows in the bottom of thesight glass. The approximate oil capacity ofthe pump is 375 milliliters.

3. Replace the OIL FILL cap and remove thecap from one of the inlet ports. Turn the Iso-Valve to OPEN. Turn the motor switch toON. When the pump runs smoothly, turn theIso-Valve to CLOSED and replace the capon the inlet port. This may take from two to30 seconds depending on the ambienttemperature. After the pump runs forapproximately one minute, check the sightglass for proper oil level — oil should beeven with the sight glass OIL LEVEL line.Add oil if necessary.

When the pump is running, the oil level should beeven with the line on the sight glass. Underfillingwill result in poor vacuum performance. Overfill-ing can result in oil blowing from the exhaust.Your pump is now ready to evacuate air condition-ing and refrigeration systems. Follow normalservice procedures and the A/C-R manufacturer’sinstructions for connections to the system.

Before using your vacuum pump

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CAUTION! Before connecting your vacuum pumpto an A/C-R system, remove refrigerant from thesystem in an accepted manner. Damage to thepump may occur if evacuation is started whilethe system is under high pressure. Robinairrecommends use of our Refrigerant Recoveryand Recycling equipment.Wiring Instructions:The CoolTech vacuum pump features dualvoltage ranges. Before operating the pump, readand follow these rewiring instructions (if neces-sary) to be sure your pump is wired for theappropriate voltage.

CAUTION! Unplug the unit before beginningany service work. Improper use or connec-tions can cause electrical shock. Onlyqualified personnel should perform servicework.The CoolTech vacuum pump is factory wired for ahigh voltage range of 220 to 250 volts. To wirethe switch for a low voltage range of 110 volts to115 volts, follow these steps.

1. Disconnect the unit from the AC powersource before proceeding.

2. Loosen the screws on the plate at the rear ofthe motor, and carefully move the plate asideto clear the opening.

3. Disconnect the leads and reconnect for lowvoltage, following the diagram and chart.(High voltage connections are also shownif you want to rewire at some time.)

4. Check to see that all connections aresecure and that there are no short circuits.Be sure the grounding connector is properlyconnected.

5. Re-install the plate on the rear of motor withthe screws which were loosened in Step 2.

IMPORTANT: Check for short circuits using acontinuity tester before reconnecting to the ACpower source.

— EMERSON —INTERNAL VOLTAGE CONNECTIONMOTOR LOW HIGH

LEAD VOLTAGE VOLTAGEBROWN 3 6WHITE 4 3BLACK 2 3

INST0350

NOTE: EXTERNAL POWER LEADS ARE ALWAYSCONNECTED TO TERMINALS 1 AND 4.

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anualTo use the gasballast featureMoisture from the A/C-R system that is carriedinto the pump as a vapor tends to condense into aliquid and combine with the vacuum pump oil.When moisture contaminates the pump oil, itreduces the pump’s ability to reach its ultimatedeep vacuum level.The gas ballast valve purges a small amount ofatmospheric air through the exhaust chamber.This extra volume of air mixes with the vapor fromthe refrigerant system to prevent condensationand to help exhaust moisture in the form of vaporfrom the pump.To use the gas ballast, start the pump and openthe gas ballast valve until the system has reachedapproximately 1000-3000 microns. Close thevalve to allow the pump to pull down to its ultimatevacuum level. The gas ballast valve is locatedbeside the handle, opposite the inlet fitting.The gas ballast valve may be opened or closed atany time during pump operation. It is fully open attwo turns counterclockwise.NOTE: Robinair recommends the use of athermistor vacuum gauge to most accuratelymeasure vacuum levels.

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To maintain your highvacuum pumpFor maximum performance, Robinair recommendschanging vacuum pump oil after each use.Vacuum pump oilThe condition and type of oil used in any highvacuum pump are extremely important in determin-ing the ultimate attainable vacuum. Robinair recom-mends the use of our Premium High Vacuum PumpOil. This oil has been specifically blended to maintainmaximum viscosity at normal running temperaturesand to improve cold weather starts.Robinair Premium High Vacuum Pump Oil isavailable 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 disposeof properly. Oil can be forced from the pumpby opening the inlet and partially blocking theexhaust with a cloth while the pump isrunning. Do not operate the pump for morethan 20 seconds using this method.

3. When the flow of oil has stopped, tilt thepump forward to drain residual oil.

4. Replace the OIL DRAIN cap. Remove the OILFILL cap and fill the reservoir with newvacuum pump oil until the oil just shows at thebottom of the sight glass. The approximate oilcapacity of the pump is 375 milliliters.

5. Be sure the inlet ports are capped, then turnON the pump. Allow it to run for one minute,then check the oil level. If the oil is below thesight glass OIL LEVEL line, add oil slowly(with the pump running) until the oil reachesthe OIL LEVEL line. Replace the OIL FILLcap, making sure the inlet is capped and thedrain cap is tight.

6. If the oil is badly contaminated, you may needto flush your pump. To flush, remove thepump drain cap and start the pump. Slowlypour a small quantity of new pump oil throughthe oil fill inlet.

Repeat this procedure as required until thecontamination is removed. Replace the OILDRAIN cap and refill the reservoir to the properlevel with fresh pump oil (see Step 4).Cleaning your pumpClean the pump with soap and water only. Do notuse commercial cleaners that contain degreasingagents that can damage polycarbonates. Thepump handle and base are made of Lexan, one ofthe toughest polycarbonate plastics available.However, it is sensitive to degreasing agents.*Lexan is a registered trademark of General ElectricMotor lubricationAfter three years of normal service or one year ofheavy-duty service, add oil annually. Use electricmotor oil or SAE 10 oil.

To shut down yourpump after useTo help prolong pump life and promote easystarting, follow these procedures for shutdown:

1. Close the manifold valve between the pumpand 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 fora few seconds to relieve any vacuum insidethe pump.

5. Cap the inlet port to prevent any contamina-tion or loose particles from entering the port.

Troubleshooting guideYour CoolTech pump has been designed fordependable use and long life. If something shouldgo wrong, however, the following guide will helpyou get the pump back into service as quickly aspossible.If disassembly of the pump is required, pleasecheck your warranty. The warranty may bevoided by misuse or customer tampering whichresults in the pump being inoperable.Failure to startCheck the line voltage. Robinair pumps aredesigned to start at +10% line voltage (loaded) at0oC. At extremes, however, switching betweenthe start and run windings may occur. Whenstarting the pump in cold temperatures, be surethe Iso-Valve and inlet port are open to free air.Oil leakage

1. Be sure the oil is not a residual accumulationfrom spillage, etc.

2. If leakage exists, the module cover gasket orthe shaft seal may need replacing. Follow theinstructions supplied with the seal replace-ment kit, part number 15367. If leakageexists in the area of the drain plug, you mayneed to reseal the plug using a commercialpipe thread sealer.

Failure to pull a good vacuum1. Be sure the Iso-Valve on the pump is in the

OPEN position and the gas ballast knob istightly sealed.

2. Be sure the vacuum gauge and all connec-tions are in good conditon and leak-free.You can confirm leakage by monitoring thevacuum with a thermistor gauge whileapplying vacuum pump oil at connections orsuspected leak points. The vacuum willimprove briefly while the oil is sealing theleak.

3. Be sure the pump oil is clean. A badlycontaminated pump may require several oilflushes. See OIL CHANGE PROCEDURE.

4. Be sure the oil is at the proper level. Formaximum pump operation, the oil must beeven with the OIL LEVEL line on the sightglass when the pump is running. See OILCHANGE PROCEDURE. Do not overfill —operating temperatures will cause the oil toexpand so it will appear at a higher level thanwhen the pump is not running. To check theoil level, start the pump with the inlet capped.Check the oil level in the sight glass. Add oilif necessary.

CoolTech ® pumpspecifications

Model 15401Frequency Range ................................... 50-60 HzFree Air Displacement ....................... 4 cfm/60 Hz

.................................................. 94 l/m @50 Hz

................................................ 113 l/m @60 HzStages ................................................................. 2Motor Speed ............................ 1425 rpm @50 Hz

............................................ 1725 rpm @60 HzVoltage Range ....................................... 110-115V

.......................................................... 220-250VFactory Micron Rating .......................... 20 micronsApproximate Oil Capacity ........................... 400 mlWeight ........................................................... 15 kgWidth ....................................................... 14.29 cmHeight ........................................................ 24.6 cmLength .......................................................... 40 cmIntake ................................... 1/2" and 1/4" SAE MFLMin. Starting Temp. (at 90% Voltage) .............. 0oCMotor Size ........... 0.25kW (1/3 HP) Capacitor StartOperating Temp. ............................................ 68oC

Model 15601/15603/15605Frequency Range ................................... 50-60 HzFree Air Displacement ....................... 6 cfm/60 Hz

................................................ 142 l/m @50 Hz

................................................ 170 l/m @60 HzStages ................................................................. 2Motor Speed ............................ 1425 rpm @50 Hz

............................................ 1725 rpm @60 HzVoltage Range ....................................... 110-115V

.......................................................... 220-250VFactory Micron Rating .......................... 20 micronsApproximate Oil Capacity ........................... 400 mlWeight ........................................................ 15.2 kgWidth ....................................................... 14.29 cmHeight ........................................................ 24.6 cmLength .......................................................... 42 cmIntake ................................... 1/2" and 1/4" SAE MFLMin. Starting Temp. (at 90% Voltage) .............. 0oCMotor Size ........ 0.375 kW (1/2 HP) Capacitor StartOperating Temp. ............................................ 68oCNote:

1. All motors are internally protected (automaticreset).

2. Operating temperatures are typical fornormal operating conditions.

3. Model 15603 has a bipolar side grounded plug.4. 15405 & 15605 have an Australian plug.

Because of ongoing product improvements, we reserve the right tochange design, specifications, or materials without notice.

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U.S Patents 4,523,897; 5,209.653. Other U.S.and Foreign Patents Pending.

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Model 15607 Specifications

Replacement parts15607/15605/15601/

Part Figure 15401 15603Vent Bolt(includes O-rings) 11 15338 15338Handle, Power Cordand Switch Assembly 12 15466 15466Motor 13 15465 15665Coupling 14 13192 13192Iso-ValveTM Assembly 15 15368 15368Base and Foot Assembly 16 15369 15369Pump Assembly, less motor(includes No. 3 and 6) 17 15547 15548Seal Replacement Kit(not shown) -- 15367 15367

Replacement parts15607/15605/15601/

Part Figure 15401 15603Oil Drain Cap (6) 1 40572 40572Oil Drain Kit(includes No. 1) 2 13193 13193Module Cover Kit(includes Nos. 2, 4, and 5) 3 15337 15337Oil Fill Cap(includes No. 7) 4 15371 15371Intake Fitting(includes No. 9 and 10) 8 15364 15364Intake Cap (2),1/2" SAE MFL 9 41135 41135Intake Cap (6),1/4" SAE MFL 10 41139 41139

Voltage Range 220VFrequency Range 50 HzFree Air Replacement 142 l/mStages 2Motor Speed 1425 rpmFactory Micron Rating 20 micronsApproximate Oil Capacity 400 mlWeight 15 kgWidth 14.29 cmHeight 24.6 cmLength 42 cmIntake 1/2" and 1/4"

SAE MFLMin. Starting Temp. at 90% Voltage 0oCMotor Size .37kW (1/2 hp)

Capacitor StartOperating Temperature 68oC

Warranty coverageRobinair CoolTech® vacuum pumps are war-ranted against defects in material and workman-ship for one year of normal use from the date ofpurchase. See your distributor for warrantydetails.Out of warrantyA pump which is no longer covered by the one-year warranty period and which fails to operateproperly should be returned to the distributor witha full written explanation of the problem. Thedistributor may suggest returning the pump to thefactory. Before returning an out-of-warrantypump, review all maintenance procedures toavoid an unnecessary return. Replacement partsare available for doing your own service.

116292 (Rev. C 02/08/05) © SPX Corporation

SPX Corporation655 Eisenhower DriveOwatonna, MN 55060-0995 USATechnical Services: 1-800-822-5561 Fax: 1-412-690-2001Customer Service: 1-800-533-6127 Fax: 1-800-322-2890Web Site: www.robinair. com

Call our Toll-FreeTechnical Support Line at

800-822-5561in the continental U.S. and Canada

or visit our websitewww.robinair.com

In all other locations, contact your local distributor. To help us serve you better,please be prepared to provide the model number, serial number, and date ofpurchase of your unit.

To validate your warranty, complete the warranty card attached to your unit andreturn it within ten days from date of purchase.

NATIONWIDE NETWORK OF AUTHORIZED SERVICE CENTERSIf your unit needs repairs or replacement parts, contact the service center in yourarea. For help in locating a service center, call the toll-free technical support lineor visit our website.

Due to ongoing product improvements, we reserve the right tochange design, specifications, and materials without notice.

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