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The interchangeable orifice design allows for field-adjustable capacity matching without requiring a full valve replacement
Interchangeable across multiple McDonnell & Miller feeder series for reduced inventory overhead
ensuring the valve closes upon power loss to prevent system overheating or unintended flow
this board effectively resolves ignition failure codes and inconsistent flame rectification issues
Johnson Controls P70NA-1 Pressure Control R-410A The interchangeable orifice design allowsThe Johnson Controls P70NA 1 is a professional grade dual pressure control designed for heavy duty commercial refrigeration and air conditioning systems. This mechanical switch provides critical compressor protection by responding directly to high and low side pressure fluctuations. Engineered for all range refrigerant compatibility, this unit is field ready for systems utilizing R 12, R 22, R 134A, R 500, and R 502. The low pressure side features a