Smart Exhaust Make-Up Air System

Details

Model: MAS-1
Manufacturer: Field Controls
Series: MAS (Metering Air System)
Part Number: 46231900
Alternate Part Number: 1888668
Description: 6-Inch Metering Air System with Intake Hood, 24V Control, for Smart Exhaust and Make-Up Air Applications.

Product Overview

The Field Controls MAS-1 Metering Air System is a 6-inch make-up air assembly designed to supply controlled fresh air for balanced ventilation in residential and light commercial HVAC systems. The MAS-1 operates as part of the Field Controls Smart Exhaust or similar ventilation control systems, introducing outside air into the conditioned space when exhaust ventilation or pressure differential demands require make-up air. Constructed with durable components and a precision airflow metering assembly, the MAS-1 maintains proper building pressure balance and supports ASHRAE 62.2 fresh air requirements. The 24V control interface allows integration with standard HVAC controls or building automation systems.

Technical Specifications

• Manufacturer Part Number: 46231900
• Alternate Part Number: 1888668
• Product Type: Metering Air System (Make-Up Air System)
• Series: MAS
• Control Voltage: 24 VAC
• Duct Connection Size: 6 inches
• Included Components: Intake hood, damper assembly, metering mechanism, control wiring
• Operating Function: Supplies metered fresh air to counteract exhaust-driven depressurization
• System Integration: Designed for use with Field Controls Smart Exhaust or equivalent ventilation control modules
• Airflow Regulation: Automatic damper control with metered air delivery
• Application: Residential and light commercial HVAC systems requiring make-up air integration
• Material: Galvanized steel housing with corrosion-resistant intake hood
• Mounting Type: Duct-mounted with external intake installation
• Compliance: Supports ventilation requirements per ASHRAE Standard 62.2

Installation Notes

• Install MAS-1 assembly in accordance with Field Controls technical documentation.
• Mount intake hood on an exterior wall or vent termination clear of exhaust outlets and contaminants.
• Connect 6-inch duct to HVAC return or dedicated make-up air pathway.
• Wire 24V control circuit to compatible ventilation control device or Smart Exhaust module.
• Verify damper operation and airflow rate during system commissioning.

Summary

The Field Controls MAS-1 Metering Air System provides controlled make-up air for balanced ventilation in exhaust-dominated environments. Designed for professional integration with Smart Exhaust or similar ventilation systems, the MAS-1 maintains pressure equilibrium, ensures consistent air exchange, and supports compliance with modern ventilation standards in hydronic and forced-air HVAC applications.