What refrigerants and oils is the 15500 compatible with? A: Works with CFC, HCFC, and HFC refrigerants using mineral oil, ester oil, alkyl benzene oil, and PAG oil. Not rated for ammonia, lithium bromide, A2L, or flammable refrigerants.

Q: What refrigerants and oils is the 15500 compatible with? Works with CFC, HCFC, and HFC refrigerants using mineral oil, ester oil, alkyl benzene oil, and PAG oil. Not rated for ammonia, lithium bromide, A2L, or flammable refrigerants.

Can I use this for both automotive and commercial HVAC work? A: Yes, rated for systems up to 50 tons covering residential, automotive, rooftop commercial, tractor-trailers, and buses. 5 CFM displacement with 35-micron capability.

Q: Can I use this for both automotive and commercial HVAC work? Yes, rated for systems up to 50 tons covering residential, automotive, rooftop commercial, tractor-trailers, and buses. 5 CFM displacement with 35-micron capability.

What does the No Hassle warranty mean? A: Defective pumps can be exchanged immediately at participating distributors in the U.S. and Canada during the 1-year warranty period. Covers material and workmanship defects under normal use.

Q: What does the No Hassle warranty mean? Defective pumps can be exchanged immediately at participating distributors in the U.S. and Canada during the 1-year warranty period. Covers material and workmanship defects under normal use.

How often should I change the vacuum pump oil? A: Check via sight glass before each use. Change when oil is dark, milky, or contaminated. Capacity is 7.5 oz. Angled drain valve and top fill port simplify maintenance.

Q: How often should I change the vacuum pump oil? Check via sight glass before each use. Change when oil is dark, milky, or contaminated. Capacity is 7.5 oz. Angled drain valve and top fill port simplify maintenance.

What is the difference between the 15500 and 15300? A: The 15500 delivers 5 CFM for systems up to 50 tons. The 15300 delivers 3 CFM for systems up to 30 tons. Both share 35-micron rating, two-stage design, and 28 lb weight.

Q: What is the difference between the 15500 and 15300? The 15500 delivers 5 CFM for systems up to 50 tons. The 15300 delivers 3 CFM for systems up to 30 tons. Both share 35-micron rating, two-stage design, and 28 lb weight.

Robinair

Robinair 15500 VacuMaster Automotive AC Vacuum Pump

$295.00 $362.83

Product variants

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Manufacturer Warranty included with purchase
Questions? +1 (855) 498-2147

Robinair 15500 VacuMaster Automotive Vacuum Pump - 5 CFM

You're evacuating a rooftop unit in August heat and every minute matters. The Robinair 15500 VacuMaster is a 5 CFM automotive vacuum pump with a two-stage rotary vane that pulls down to 35 microns, stripping moisture out of A/C and refrigeration systems fast enough to keep your schedule on track. Whether you're servicing rooftop commercial units, pulling vacuum on tractor-trailer reefer systems, or doing a car ac vacuum pump job in the shop bay, this one unit handles it all with capacity rated up to 50 tons.

Single-stage pumps leave moisture behind. The 15500's two-stage design pulls deeper and gets there faster, so you're not sitting around waiting to hit target vacuum on a system that should've been done ten minutes ago. A sealed-bearing, high-torque motor fires up reliably even after sitting in your van all weekend, and the cast aluminum body keeps weight at 28 lbs. Light enough to haul up a ladder. Tough enough to survive bouncing around in a service truck.

Oil maintenance is where a lot of pumps waste your time. Not this one. The angled drain valve at the bottom empties faster and more completely than standard drains, the top fill port gives you easy access when topping off, and a large sight glass shows both level and condition at a glance. Brass intake valves with 1/4" MFL and 3/8" ACME fittings connect to the manifold sets you already own. An intake screen blocks debris from the pumping chamber, and the external exhaust filter separates oil vapor from exhaust flow to keep internals clean.

Garage Supply Guys carries Robinair vacuum pumps with direct support from people who know the equipment. Need help choosing the best automotive AC vacuum pump for your operation? Call us at (855) 498-2147.

Specifications

Brand	Robinair
Model	15500 (VacuMaster)
Free Air Displacement	5 CFM
Micron Rating	35 microns
Stages	2
Motor	1/3 HP
Voltage	115V, 60 Hz
Intake Fittings	1/4" MFL, 3/8" ACME, 3/8" FFL x 1/2" ACME adapter
Oil Capacity	7.5 oz (220 ml)
Cord Length	6 ft (1.8 m)
Weight	28 lbs (12.2 kg)
Dimensions	10" H x 5" W x 13" L (255 mm x 123 mm x 336 mm)
System Capacity	Up to 50 tons (176 kW)
Approvals	CSA
Compatible Refrigerants	CFCs, HCFCs, HFCs
Compatible Oils	Mineral, Ester, Alkyl Benzene, PAG
UPC	637335016248

Not for use with ammonia, lithium bromide systems, A2L, or other flammable refrigerants.

What's Included

Robinair 15500 VacuMaster Vacuum Pump
1/4" MFL Intake Fitting
3/8" MFL Intake Fitting
3/8" FFL x 1/2" ACME Adapter

Call to confirm included accessories.

Applications

Commercial Rooftop A/C

Evacuate rooftop packaged units and split systems on commercial buildings. The higher CFM displacement means shorter cycle times on larger tonnage systems, getting you off the roof and onto the next call faster. A reliable automotive HVAC vacuum pump that crosses over to commercial work.

Automotive A/C Service

Pull deep vacuum on car and truck A/C systems during compressor replacements, evaporator swaps, or full recharges. Portable enough for a service cart, powerful enough to evacuate quickly between jobs. The vacuum pump for automotive AC work that doesn't slow you down.

Tractor-Trailers and Buses

Service large-capacity climate systems on commercial vehicles. The 50-ton rating handles oversized mobile A/C systems that smaller pumps struggle with, making it a go-to refrigeration vacuum pump for fleet maintenance shops.

Refrigeration Equipment

Maintain walk-in coolers, reach-in cases, and commercial refrigeration units. Multi-refrigerant compatibility with CFCs, HCFCs, and HFCs means one vacuum pump for refrigeration across your entire service route without swapping equipment between systems.

Product Video

Shipping

All items for sale on our site will be shipped to the designated address upon completion of order. We will ship to your desired site once payment is authorized. We ship to any address in the Continental United States only. We do not offer local pickup. Please allow 3-5 business days for shipping to be completed. If you have questions about your order please fill out our contact form.

Warranty

1-Year Warranty with "No Hassle" Exchange

All Robinair products are warranted to be free from defects in material and workmanship under normal use and service for a period of one year after the sale of the product. Exception to this policy will be individually identified. The sole obligation under this warranty shall be to repair, replace or provide credit for any defective product or parts thereof, which are returned to the seller's factory within the period mentioned above, and which upon examination are proven to the seller's satisfaction to be defective.

The warranty shall not apply to any product or part which has been subject to misuse, negligence or accident. The seller shall not be responsible for any special or consequential damages and the warranty as set forth is in lieu of all other warranties, either expressed or implied.

Robinair pumps may also be returned to a distributor for an immediate over-the-counter exchange (U.S. and Canada only).

For full warranty statement, please refer to your product owner's manual.

Documents

Click to open in a new tab.

Robinair 15500 VacuMaster Vacuum Pump User Manual

Operation and maintenance instructions

Robinair 15500 VacuMaster Vacuum Pump Sales Sheet

Features and specifications overview

Ready to Order?

Talk to our equipment specialists for pricing, availability, and answers to your questions.

Call us: (855) 498-2147

Frequently Asked Questions

What refrigerants and oils is the 15500 compatible with?

The Robinair 15500 works with systems running CFC, HCFC, and HFC refrigerants. It's compatible with mineral oil, ester oil, alkyl benzene oil, and PAG oil lubricants. It is not rated for use with ammonia, lithium bromide systems, A2L, or other flammable refrigerants. Always verify your system's refrigerant type before connecting.

Can I use this for both automotive and commercial HVAC work?

Yes. The 15500 is rated for systems up to 50 tons, which covers residential A/C, automotive air conditioning, rooftop commercial units, tractor-trailers, and buses. The 5 CFM displacement and 35-micron capability make it versatile enough for auto ac vacuum pump jobs and larger commercial evacuation work alike.

What does the "No Hassle" warranty mean?

Robinair's "No Hassle" program means you can return a defective pump to a participating distributor for an immediate over-the-counter exchange, rather than waiting for a repair. This is available in the U.S. and Canada during the 1-year warranty period. The warranty covers defects in material and workmanship under normal use but does not cover misuse, negligence, or accidents.

How often should I change the vacuum pump oil?

Check the oil level and condition through the sight glass before each use. Change the oil whenever it looks dark, milky, or contaminated. The pump holds 7.5 oz of vacuum pump oil. The angled drain valve allows fast, complete draining, and the top fill port makes refilling easy. Fresh oil is critical to maintaining the pump's 35-micron performance.

What's the difference between the 15500 and the 15300?

The main difference is displacement and system capacity. The 15500 delivers 5 CFM and is rated for systems up to 50 tons, making it the better choice for commercial rooftop units, buses, and tractor-trailers. The 15300 delivers 3 CFM and is rated for systems up to 30 tons, suited for residential A/C and smaller vehicles. Both share the same 35-micron rating, two-stage design, and 28 lb weight.

About the Brand

Robinair

View All Robinair Products

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