Robinair 15501A-E-A2L 2-Stage Vacuum Pump (128 L/min)

A2L-ready. NH₃-capable. Built for real-world service.
The Robinair 15501A-E-A2L is a compact 2-stage rotary-vane pump delivering 128 L/min (≈5 CFM) with an ultimate vacuum of 15 microns (2 Pa). It’s rated for A2L refrigerants (e.g., R32) and compatible with ammonia (NH₃), making it a smart upgrade when you need deeper, verified pull-downs without lugging a boat anchor.

Why techs pick it

• Deeper vacuums, faster: true 2-stage design + stable 15-micron spec.
• Gas ballast: helps keep moisture out of the oil for consistent performance.
• Job-site practical: cool-touch, sure-grip handle; compact aluminium housing.
• Right fittings out of the box: nickel-plated steel 1/4" & 3/8" SAE flare ports.
• A2L & NH₃ compatible: use the right procedure and site controls for each refrigerant class.

This is not rated for A3 hydrocarbons (e.g., R290). If you work with A3, choose a pump specifically certified for that class.

Best for

Residential and light-commercial evacuation where you want reliable, measurable results (micron gauge + decay test) and a pump that won’t slow you down on hot roofs.

In the box
• Robinair 15501A-E-A2L vacuum pump
• 12-month warranty
(Add vacuum pump oil to cart before first use.)

Links

• Robinair 13203 Vacuum Pump Oil (0.95 L) → https://www.hvacshop.com.au/products/robinair-13203-vacuum-pump-oil-0-95l
• Robinair Digital Micron Vacuum Gauge → https://www.hvacshop.com.au/products/digital-micron-vacuum-gauge-micron-air-conditioning-tool-hvacshop
• Robinair 3/8" Evacuation Hose 68060 (150 cm) → https://www.hvacshop.com.au/products/robinair-3-8-150cm-charging-vacuum-hose-68060

Safety & compliance

Follow AU/NZ refrigerant-handling codes. Use A2L procedures for R32 and ammonia-safe practices for NH₃. Keep oil fresh and verify with a micron gauge.

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TECH SPECS

• Free air displacement: 128 L/min (5 CFM)
• Ultimate vacuum: 15 microns (2 Pa)
• Stages: 2 (rotary-vane)
• Motor: 450 W, 240 V / 50 Hz
• Intake ports: 1/4" & 3/8" SAE flare (nickel-plated steel)
• Oil capacity: 500 ml
• Power cord: 1.8 m
• Dimensions (approx): 335 × 140 × 255 mm
• Net weight: 10.2 kg
• Refrigerant classes: A2L, NH₃ (not A3)

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QUICK FAQ

Is it OK for R32? Yes — it’s A2L-ready (R32 is A2L).
What about R290? No — not rated for A3. Choose a pump certified for hydrocarbons.
How often do I change oil? After each job or whenever discoloured. Clean oil = faster, deeper pull-downs.
Do I really need a micron gauge? Yes. Always verify with a micron gauge and a decay (rate-of-rise) test.