Johnson Controls P74FA-10 Pressure Control Els PW 29614 12 inches is required to

12 inches is required to ensure the switch accurately reads the internal plenum temperature

This model is specifically charged for R134a and R513A systems across a temperature range of -40°F to 50°F (-40°C to 10°C)

Proper alignment prevents "walking" and maintains the 14-inch fan blade clearance within the venturi

it replaces several legacy Fasco models

Johnson Controls P74FA-10 Pressure Control Els PW 29614 12 inches is required toThe Johnson Controls P74FA 10 is a high performance differential pressure control engineered for precision monitoring in commercial HVACR systems. Designed with a Single Pole Double Throw (SPDT) switch, this unit excels in proof of flow applications across chillers and water cooled condensers. With an adjustable range of 2 to 26 PSI and a 1. 5 PSI fixed differential, it provides the narrow switch differential required for sensitive system feedback and