Product Overview
Johnson Controls P-5215-9 Pneumatic Differential Pressure Transmitter - 3-15 PSIG Output, 0-2 in. WG Range
Condition
Single unit available. Unused NOS - kept in original manufacturer packaging with no signs of prior installation or service. Evaluation: Visual inspection only. Function testing not performed. Obtained via government surplus channels.
Ships same business day from Idaho. Packed carefully.
Product Overview
Johnson Controls P-5215-9 is a pneumatic differential pressure transmitter for legacy building automation and HVAC systems. It senses the pressure difference between two points in an air or non-combustible gas system and outputs a standard 3-15 PSIG pneumatic signal to drive downstream controls. Calibrated specifically for the 0 to 2.0 in. WG (0-498 Pa) range, the -9 suffix distinguishes this variant from others in the P-5215 series. Requires 20 PSIG clean, dry supply air to operate. Must be mounted within 15 degrees of vertical to maintain factory calibration accuracy.
Key Features
- Input range: 0 to 2.0 in. WG (0 to 498 Pa)
- Output signal: 3 to 15 PSIG standard pneumatic
- Supply air: 20 PSIG nominal, clean and dry
- Operating temperature: 50 deg F to 100 deg F (10 deg C to 38 deg C)
- Mounting: Within 15 degrees of vertical for factory calibration accuracy
- Media: Air and non-combustible gases only - not for liquids or corrosive gases
- Series variant: -9 suffix specifies 0-2.0 in. WG range; other suffixes cover different ranges
- Compatibility: Pneumatic control networks only - not directly compatible with DDC electronic systems without a P-to-E transducer
Applications
- HVAC ductwork airflow and static pressure monitoring
- Cleanroom and laboratory pressure balance control
- Fan velocity and filter performance monitoring
- Replacement unit in existing Johnson Controls pneumatic installations
Frequently Asked Questions
What output signal does the P-5215-9 produce?
It outputs a standard 3-15 PSIG pneumatic signal, compatible with pneumatic controllers, actuators, and other pneumatic logic devices.
Will this work with a modern DDC or electronic building automation system?
Not directly. The P-5215-9 is a pneumatic device. Integration with DDC electronic systems requires a pneumatic-to-electronic (P-to-E) transducer.
What supply air pressure does it require?
20 PSIG nominal, clean and dry. Do not operate without a properly conditioned air supply.
Is the -9 suffix important when ordering or replacing?
Yes. The P-5215 series uses suffixes -4 through -10 to denote different pressure ranges. The -9 suffix is calibrated specifically for 0-2.0 in. WG. Verify the suffix matches your application before installation.
Are there mounting restrictions?
Yes. Mount within 15 degrees of vertical to maintain factory calibration. Deviating beyond this will require manual recalibration.
Verify sensing line length does not exceed manufacturer recommendations before installation - excessive line length can introduce signal lag in pneumatic systems.
