Masterlock 90066-2v-110-bl Two Stage Vacuum Pump 6 Cfm

Product Description

The MASTERLOCK 90066-2v-110-bl is a two-stage vacuum pump rated at 6 CFM, designed for evacuating refrigerant circuits and moisture from HVAC and refrigeration systems before charging. Two-stage pumps pull deeper vacuums than single-stage models, making them the correct choice when system cleanliness and thorough dehydration are required. At 6 CFM, this unit moves air quickly enough to service mid-size to larger residential and light commercial systems without excessive pump-down time. The black series designation indicates the product line within the MASTERLOCK pump family. Licensed HVAC technicians are the primary installers and users of this equipment.

This pump is suited for residential and light commercial HVAC evacuation work, including split systems, mini-splits, packaged units, and refrigeration equipment. It is used during new installations and service calls that require system evacuation prior to refrigerant charging. The two-stage design is appropriate when the job requires reaching low micron levels to confirm system integrity and remove residual moisture from the refrigerant circuit.

Key Features

• 6 CFM displacement rating for efficient evacuation of mid-size to larger refrigerant systems
• Two-stage design achieves deeper vacuum levels compared to single-stage pumps
• Black series product line within the MASTERLOCK vacuum pump range
• Suitable for HVAC new installations and service evacuation procedures

Compatibility

Designed as an OEM-style replacement and service vacuum pump for use with standard refrigerant circuit evacuation procedures on residential and light commercial HVAC and refrigeration systems.

Installation Notes

This vacuum pump is serviced and operated by licensed HVAC technicians in accordance with EPA Section 608 refrigerant handling regulations. Before connecting the pump, ensure all refrigerant has been properly recovered from the system using certified recovery equipment. Connect the pump to the manifold gauge set using the correct hose fittings and confirm all connections are leak-free before beginning evacuation. Do not allow refrigerant or moisture to back-flow into the pump oil; change the pump oil regularly as contaminated oil reduces ultimate vacuum depth.

Technical Specifications

• Displacement: 6 CFM
• Pump Stages: 2

Standard Information

• Brand: MASTERLOCK
• Manufacturer Part Number: 90066-2v-110-bl