90065-220

The Workhorse: High-Capacity Performance for Medium to Large Systems

The Mastercool 90065-220 is the professional's choice for medium to large HVAC systems. With 119 litres per minute displacement and robust two-stage design, this pump handles systems from 1 to 4.5 kg charge capacity with ease. Durable, time-tested, and built to stand up to the most gruelling conditions, the 90065 delivers years of reliable service for technicians who demand serious performance.

High-Capacity Two-Stage Performance

With 119 litres per minute displacement at 50Hz, the 90065 evacuates medium to large systems quickly and efficiently. The two-stage design achieves 25 microns ultimate vacuum — more than adequate for professional refrigeration work and ensuring moisture-free systems. This is the pump for technicians who regularly work on larger residential systems, light commercial installations, or multiple smaller systems throughout the day.

Built for Medium to Large Systems

The 90065 is specifically designed for systems with 1 to 4.5 kg charge capacity — perfect for:

• Large residential air conditioning systems
• Multi-zone heat pump installations
• Light commercial HVAC equipment
• Walk-in coolers and freezers
• Multiple smaller systems in a single service call
• Automotive A/C systems (R134a compatible)

Professional Features for Demanding Work

• Manifold Isolation Valve — Isolates pump from the system for leak testing without disconnecting hoses
• Three Inlet Ports — 1/4" SAE, 3/8" SAE, and 1/2" ACME (for automotive R134a systems) provide maximum flexibility
• Gas Ballast Valve — Helps prevent oil contamination caused by high moisture content in the system
• Advanced Cooling System — High-volume fan and cooling fins maintain optimal temperature during extended operation
• Easy Maintenance — Removable vapour discharge/oil fill port and accessible drain valve simplify servicing (531ml oil capacity)
• Oil Level Monitoring — Large sight glass with max/min indicators for easy visual checks
• Thermal Protection — Motor protection with on/off rocker switch
• Check Valve Protection — Prevents oil back-flow into the system

Durable Construction for Professional Use

• Refined Cartridge Machining — Improved surface finish extends pump life and reduces wear
• Expanded Internal Oil Path — Minimises friction and heat buildup during operation
• Upgraded Seals — Ensures maximum vacuum performance down to 25 microns
• U.S. Designed and Tested — American engineering with proven reliability
• Robust 1/3 HP Motor — Powerful enough for demanding applications, efficient enough for all-day use

Built for Field Reliability

• Portable Design — Easy-grip handle and reinforced base (13.2 kg) for stable field positioning
• Professional Footprint — 37 x 15.5 x 27.5 cm dimensions balance capacity with portability
• 220V 50Hz Power — UK/European standard (Schuko cable)
• Multiple Connection Options — Manifold with 1/4" SAE, 3/8" SAE, and 1/2" ACME ports

Technical Specifications

• Stages: Two-stage
• Free Air Displacement: 119 lit/min (50 Hz), 142 lit/min (60 Hz)
• Ultimate Vacuum: 25 microns*
• Motor: 1/3 HP, 1425 RPM (50 Hz), 1725 RPM (60 Hz)
• Power: 220V, 50/60 Hz (Schuko cable)
• Weight: 13.2 kg (29 lbs)
• Dimensions: 37 x 15.5 x 27.5 cm
• Oil Capacity: 531 ml (18 oz)
• Connections: Manifold with 1/4" SAE, 3/8" SAE, 1/2" ACME ports
• System Capacity: 1 to 4.5 kg charge capacity
• Features: Manifold isolation valve, gas ballast valve, check valve, three inlet ports

Service Information

• Oil Capacity: 531 ml (18 oz)
• Replacement Cartridge: 90165-R
• Seal Service Kit: 90062-11-SEAL
• Recommended Oil: Mastercool vacuum pump oil (90018-6 or 90024-6)

Why Choose the 90065?

The 90065 sits in the sweet spot between compact portability and high-capacity performance. It's powerful enough to handle large residential and light commercial systems efficiently, yet portable enough for mobile service work. With 119 litres per minute displacement, you'll evacuate systems faster than smaller pumps whilst avoiding the bulk and cost of the largest models.

Perfect for:

• HVAC technicians servicing medium to large residential systems
• Commercial refrigeration service and installation
• Multi-zone heat pump installations
• Walk-in cooler and freezer service
• Automotive A/C service (R134a compatible via 1/2" ACME port)
• Mobile service operations requiring high-capacity performance
• Busy technicians who need to evacuate systems quickly

The Professional's Workhorse

The 90065-220 is the pump for technicians who've outgrown smaller models but don't need the bulk of the largest pumps. With 119 litres per minute capacity, manifold isolation valve, three inlet ports, and gas ballast protection, it delivers everything required for professional service on medium to large systems. This is the workhorse that busy HVAC technicians rely on day after day.

*Note: Micron readings represent optimal laboratory conditions. Field conditions may vary.

Durable, time-tested, and built to last. Backed by Mastercool's reputation for quality. Technical documentation and parts lists available for download above.