Airmaster 42798 High Pressure Belt Drive Fan 42 in 1.5 Hp

Product Description

The AIRMASTER 42798 is a high pressure belt drive fan built for demanding industrial and commercial ventilation applications. This 42-inch fan delivers 18,197 CFM of airflow and is powered by a 1-1/2 HP motor running on 115/230 volts, single phase. Designed for single-speed operation, the belt drive configuration allows for flexible motor placement and quieter operation compared to direct drive alternatives. At 225 pounds, this is a heavy-duty unit intended for permanent or semi-permanent installation by experienced mechanical contractors or industrial maintenance personnel.

The AIRMASTER 42798 is suited for large-scale ventilation in warehouses, manufacturing facilities, agricultural buildings, and similar high-volume air movement environments. Single-phase power makes it compatible with standard commercial electrical service without requiring three-phase infrastructure. The 42-inch blade diameter and high-pressure design allow it to move air efficiently against resistance, making it appropriate for ducted or semi-ducted installations where static pressure is a factor.

Key Features

• 42-inch fan diameter for high-volume airflow in large spaces
• 18,197 CFM rated airflow output
• Belt drive design for flexible motor positioning and reduced vibration transfer
• 1-1/2 HP single-phase motor, operable at 115 or 230 volts
• Single-speed operation for straightforward installation and control
• Heavy-duty construction at 225 pounds for permanent mounting applications

Compatibility

Designed as an OEM-style replacement or direct-fit unit corresponding to AIRMASTER model HA42KA. Intended for large-format belt drive fan installations in single-phase commercial or industrial ventilation systems.

Installation Notes

Installation should be performed by a qualified mechanical contractor or licensed electrician familiar with large commercial fan systems. Disconnect and lock out all power before servicing or mounting. The 115/230-volt dual-voltage motor must be wired to match the available supply voltage per NEC requirements before energizing. Ensure the mounting structure is rated to support the unit weight and that belt tension and pulley alignment are verified before initial startup.

Technical Specifications

• Fan Diameter: 42 inches
• Airflow: 18,197 CFM
• Motor Horsepower: 1.5 HP
• Voltage: 115/230 volts
• Phase: 1 Phase
• Drive Type: Belt Drive
• Speed: Single Speed
• Length: 43.2 inches
• Width: 43 inches
• Height: 12 inches
• Weight: 225 pounds

Standard Information

• Brand: AIRMASTER
• Manufacturer Part Number: 42798