Schneider Electric (Barber Colman) 2341-522 Receiver Controller

The Schneider Electric (Barber Colman) 2341-522 Receiver Controller is a mission-critical pneumatic control component designed specifically for high limit applications in commercial and industrial HVACR environments. This reverse acting unit provides precise proportional control of variable inputs—including temperature, humidity, and pressure—as sensed by remote transmitters. To ensure a stable pneumatic signal without the risk of setpoint drift common in high-limit scenarios, the 2341-522 features an integrated limit valve on the rear of the chassis, supplying constant main-air pressure to the pilot mechanism even when upstream controller output shifts.

Built for field reliability, this 2341-522 receiver controller comes factory-mounted on a P541-BASE for immediate installation. It operates within a normal main air pressure range of 20 to 22 psig, with a maximum capacity of 30 psig, ensuring compatibility with standard building automation infrastructures. The "nozzle and flapper" pilot mechanism delivers high sensitivity and linearity, while the 0.021 scfm air consumption and 8 scfh flow capacity make it an efficient choice for mechanical contractors maintaining complex air systems. The rugged glass-filled nylon and stainless-steel construction ensures long-term performance in ambient temperatures ranging from 35 to 140°F.

Key Benefits

• Drift-Free High Limit Protection: Features a dedicated internal limit valve to maintain setpoint accuracy during critical cycles.
• Versatile 2-Input Control: Supports primary (S) and secondary reset (R) signals, with an optional remote control-point adjustment (C) for flexibility.
• Enhanced Precision: Utilizing industrial-grade pneumatic feedback, the Barber Colman 2341-522 offers exceptional linearity across the entire operating range.
• Ready for Installation: Pre-mounted on the P541-BASE to reduce labor time for HVAC technician field replacements.

Common Questions

The unit features a graduated dial with 0.25 psi divisions. Technicians apply adhesive setpoint labels that correspond to the span of the connected transmitter for accurate field calibration.

Yes, the 2341-522 can provide PI control when paired with an R500 (2351-001) integral relay, expanding its capability in sophisticated loop applications.

The 522 model is designed for field use without built-in gauges to maintain a compact footprint, though standard pneumatic testing equipment can be used during the maintenance of the pneumatic receiver controller.

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.