ACI PXP1.3 Control

The ACI PXP1.3 is a precision electric to pneumatic transducer engineered for reliable conversion of analog electrical signals into proportional pneumatic outputs in commercial HVACR environments. This constant bleed controller features a 0.007" orifice, making it an ideal solution for pilot positioner control, three-way mixing valve regulation, and chiller loading applications. The unit supports four field-selectable input ranges: 0-5 VDC, 0-10 VDC, 0-15 VDC, and 0-20 mA, providing a standardized 0 to 15 psig modulating output. To ensure system transparency, the PXP1.3 includes a 0-5 VDC feedback signal that scales linearly with branch pressure. Designed for high-duty cycles, this EP transducer manages branch line pressure by automatically modulating internal valves, ensuring consistent pneumatic response even in complex compressor staging sequences. Its robust design is preferred by technicians requiring stable pneumatic control signals within legacy or hybrid building automation systems.

• Selectable Input Versatility: Field-adjustable jumpers allow for 0-5, 0-10, 0-15 VDC, or 0-20 mA inputs to match various controller outputs.
• Linear Feedback Signal: Provides a 0-5 VDC signal (0V = 0 psi, 5V = 15 psi) for real-time monitoring of branch line accuracy.
• Reliable Constant Bleed Design: The PXP1.3 utilizes a 0.007" bleed orifice to maintain precise pressure regulation and exhaust response.
• Compact DIN Rail Mounting: Simplifies installation within control panels, reducing labor time for field technicians.
• System Fail-Safe Compatibility: Can be integrated with a 3-way solenoid valve to allow control to fail back to a local controller during power loss.

How does the ACI PXP1.3 handle power failure?
In the event of a power loss, the PXP1.3 will continue to bleed air through the internal orifice until the branch pressure reaches zero psig. For applications requiring specific fail-safe positions, a 3-way solenoid assembly should be installed.

Can the PXP1.3 be used in non-bleed applications?
No, the PXP1.3 is a constant bleed version. For applications requiring a non-bleed setup to minimize compressed air consumption, the PXP0.3 single-valve version is typically recommended, provided the pneumatic circuit meets the required consumption rates.

What is the purpose of the 0.007" orifice?
The orifice size determines the branch exhaust response time and the rate at which air is bled from the system. The 0.007" sizing on the PXP1.3 is optimized for standard industrial pneumatic actuators and positioning tasks.

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.