Airmaster 23004 Low Pressure Shutter Fan 18 Inches

Product Description

The AIRMASTER 23004 is an 18-inch low-pressure shutter fan designed for direct-drive ventilation applications in commercial and industrial settings. Built around a totally enclosed motor rated at 1/15 HP and wired for 115/230-volt single-phase power, this fan moves up to 1,877 CFM through a standard shutter opening. The direct-drive configuration eliminates belt and pulley maintenance, reducing long-term service demands. It is typically installed and serviced by HVAC technicians or mechanical contractors handling facility ventilation, exhaust, or makeup-air systems.

This fan suits light commercial, agricultural, and industrial ventilation installations where a compact, low-pressure exhaust or supply fan is needed. The 18-inch shutter-mount format fits standard wall or roof shutter openings common in warehouses, equipment rooms, garages, and similar structures. The dual-voltage motor allows field configuration for either 115-volt or 230-volt circuits without swapping hardware, giving the installer flexibility across different electrical services.

Key Features

• 18-inch direct-drive design eliminates belt and pulley maintenance requirements
• 1,877 CFM airflow rating for effective low-pressure ventilation
• Dual-voltage motor accepts 115-volt or 230-volt single-phase power
• Totally enclosed motor protects internal windings from dust and moisture
• Shutter-mount configuration installs into standard wall or roof shutter openings

Compatibility

Designed as a direct-drive shutter fan for standard 18-inch shutter openings in light commercial, agricultural, and industrial ventilation systems. This unit carries model designation EPRSM16 per the manufacturer.

Installation Notes

Installation should be performed by a qualified HVAC technician or licensed electrician. Disconnect and lock out all electrical power before mounting or wiring the unit. Verify the supply circuit voltage matches the motor configuration before energizing. Wiring must comply with applicable NEC requirements and any local codes governing motor branch circuits.

Technical Specifications

• Model: EPRSM16
• Fan Diameter: 18 inches
• Airflow: 1877 CFM
• Voltage: 115/230 volts
• Phase: 1 Phase
• Horsepower: 1/15 HP
• Drive Type: Direct Drive
• Motor Enclosure: Totally Enclosed
• Weight: 25 pounds

Standard Information

• Brand: AIRMASTER
• Manufacturer Part Number: 23004