Johnson Controls A-4000-158 Filter Kit

The Johnson Controls A-4000-158 Filter Kit is a critical maintenance component designed for pneumatic air system reliability. Specifically engineered for A-4300 and A-4400 Series Refrigerated Air Dryers manufactured before date code 9924, this condensate filter kit ensures effective moisture and contaminant removal from the pilot air supply. In high-demand HVAC pneumatic controls, preventing oil and particulate carryover is essential for protecting downstream components like thermostats and actuators. Replacing the A-4000-158 during scheduled intervals prevents pressure drops and ensures the refrigerated air dryer maintains optimal dew point performance. This kit is built to withstand standard industrial operating pressures, providing the filtration depth necessary to keep Johnson Controls pneumatic systems operational without unexpected downtime. For contractors managing older Johnson Controls equipment, verifying the date code compatibility ensures a precise fit for the internal separator assembly.

• Ensures peak efficiency of A-4300 and A-4400 Series dryers by removing condensate contaminants.
• Critical for pneumatic system protection, preventing oil-related calibration drift in control devices.
• Direct OEM replacement filter element designed for seamless integration with legacy Johnson Controls hardware.
• Maintains air quality standards necessary for precise pneumatic signaling and regulation.

What is the importance of the date code for the A-4000-158?
The A-4000-158 is specifically designed for units with a date code before 9924. Later models utilize different internal configurations, making this specific filter kit essential for maintaining older HVAC air dryers without requiring full system retrofits.

How often should the condensate filter be replaced?
Standard HVAC maintenance protocols suggest inspecting the condensate filter every six months, though high-run-time pneumatic compressors may require more frequent changes to prevent moisture bypass.

Can this kit be used in non-refrigerated dryers?
No, this kit is specifically ported and sized for the A-4300 and A-4400 series. Using incorrect filtration media can result in restricted airflow or inadequate moisture separation.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.