A-4000-139 Johnson Controls Filter Station

Overview

The Johnson Controls A-4000-139 is a single pressure-reducing and oil-removal station designed to provide clean, oil-free, instrument-quality air for pneumatic HVAC control and building automation systems. Engineered for commercial and industrial applications, this all-in-one station regulates output pressure while utilizing a multi-stage filtration system to remove contaminants that could damage downstream pneumatic components.

Features

• Includes a 4-way bypass valve allowing for in-service filter maintenance without shutting down the entire system.
• Equipped with a dual-stage filtration system consisting of a coalescing filter and an activated charcoal filter.
• Coalescing filter automatically drains and removes liquid water droplets, oil aerosols, and fine particulates.
• Activated charcoal filter adsorbs oil vapors, hydrocarbon contaminants, and odors.
• Completely piped with durable copper tubing to meet fire codes in mechanical rooms and reduce friction.
• Arrives fully assembled on a wall-mounting bracket for simplified installation.

Specifications

• Maximum Input Pressure: 150 psig (1,050 kPa)
• Rated Air Flow Capacity: 10 scfm (4.7 l/s) designed working capacity; up to 17 scfm maximum
• Pressure Output Setting: Factory-set for approximately 20 psig (140 kPa); nominal setting range up to 25 psig maximum
• Operating Temperature Limit: 120°F (52°C) to 125°F (52°C)
• Configuration: Single Pressure Reducing Valve (PRV) model
• Connections: Includes fittings for system supply and remote PRV stations

Applications

• Commercial and industrial pneumatic HVAC control systems.
• Building automation and energy management system air preparation.
• Supply air conditioning for pneumatic actuators, dampers, and controllers.
• High-purity instrument air distribution networks in mechanical equipment rooms.