Johnson Controls P-3800-1 Controller Refrigerant Enhanced System Reliability: Prevents external

Enhanced System Reliability: Prevents external leaks and protects sensitive internal sensor components from environmental degradation

Optimized Heat Transfer: Ensures the entire evaporator surface is utilized for cooling by maintaining a consistent saturation level

This actuator is a standard for contractors requiring reliable hydronic valve control in multi-family housing or commercial retrofit projects where precision and longevity are non-negotiable

preventing hunting and improving system efficiency

Johnson Controls P-3800-1 Controller Refrigerant Enhanced System Reliability: Prevents externalThe Johnson Controls P 3800 1 Reset Volume Controller is a high performance, pressure independent submaster device engineered to regulate airflow within Variable Air Volume (VAV) systems. Designed for precision, this pneumatic airflow controller operates with a supply pressure range of 13 25 PSIG and delivers an output pressure of less than 2 PSIG. It is built to maintain a constant reset span, which effectively eliminates hunting and ensures stable