Description
Robinair CoolTech™ CT15401 is a proven 2-stage, 4 CFM vacuum pump that pulls a reliable deep vacuum for Aussie HVAC/R work. Built for licensed techs and apprentices who want faster evacuations, fewer call-backs, and a pump that just keeps going. When you’re under the pump on a hot roof, this unit is a fair dinkum time-saver.
Key features & trade benefits
- Two-stage, offset rotary vane — reaches a deep vacuum quickly so you can finish evacuation sooner.
- Iso-Valve™ isolation — shut the pump off while still connected to the system for tidy, safe workflow.
- Gas ballast — helps manage moisture so you hit targets without moisture-induced stall.
- Directed exhaust through the handle — vents away from your face on tight plant decks.
- Die-cast aluminium body — lightweight to carry, tough enough for site knocks.
- Dual-voltage 230V/115V — flexible for mixed sites and generators.
- Easy service — sight glass, front oil fill, and angled drain make oil changes quick — fewer messes, fewer delays.
Why this pump matters on real jobs
Picture this: a split install in Western Sydney, mid-summer, roof tin at 50 °C. You’ve got lines vacuumed and a site manager asking how long. With the CT15401, pull-down is smooth, the Iso-Valve™ lets you isolate and hold while you log microns, and you’re charging sooner. Too easy — and no call-back on moisture alarms.
Need leak verification or evacuation accessories? See our Vacuum Pumps & Accessories category for a complete workflow.
Pro tip
Warm, fresh oil pulls deeper. If your micron plateau stalls, isolate with Iso-Valve™, crack the gas ballast for a minute to purge vapour, then reseal and continue. Swap oil if it’s hazy — it’s the cheapest performance upgrade you’ll ever buy.
Compatibility & system info
- Refrigerants: R32, R410A, R134a, R22 and common blends (observe site rules).
- Use cases: Split systems, ducted, reach-ins, cold rooms, service & install.
- Fittings: 1/4″ MFL and 3/8″ MFL inlets for high-flow evacuation rigs.
Built for Aussie conditions
From Brisbane humidity to Sydney summer roof work, this pump’s directed exhaust and die-cast chassis keep the job moving when it’s scorching. She’ll be right.
What’s included
- 1 × Robinair CoolTech™ CT15401 Vacuum Pump
- 12-month warranty
Specifications
| Free air displacement | 93 L/min (≈4 CFM) |
| Stages | 2 (offset rotary vane) |
| Ultimate vacuum | Down to 20 microns (factory spec ref.) |
| Intake fittings | 1/4″ MFL + 3/8″ MFL |
| Oil capacity | 445 ml (15 oz) |
| Motor size | 244 W (1/3 HP) |
| Power supply | 230 V, 50 Hz / 115 V, 60 Hz (dual-voltage) |
| Weight | 12 kg (27 lbs) |
| Dimensions (L×W×H) | 24.7 × 14.25 × 42 cm |
| Body | Die-cast aluminium |
| Convenience | Sight glass, front oil fill, angled oil drain |
Warranty & returns
Backed by a 12-month warranty. For returns and delivery details, see our Shipping & Returns.
FAQs
What micron level can this pump reach?
Factory performance is a deep vacuum (see specs). Real-world results depend on clean, fresh oil, proper hoses, core removal, and a reliable micron gauge.
What fittings do I need for faster evacuation?
Use a 3/8″ vacuum hose and a vacuum-rated core removal tool to maximise flow, then measure at the system with a micron gauge.
Is the CT15401 suitable for R32/R410A installs?
Yes — it’s a general HVAC/R pump. Follow site safety and Australian handling rules.
Any quick maintenance tips?
Change oil after moisture-heavy jobs or when it looks cloudy. Keep the intake filter clean and store the pump upright.
Related products
- Add a micron gauge to verify your deep vacuum accurately — essential for sign-off and fewer call-backs.
- Keep fresh oil on hand — the cheapest way to pull deeper, faster.
- Upgrade to a 3/8″ vacuum hose — bigger bore, quicker evacuation.
- Use a core removal tool — maintain full flow while you pull down.
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