Johnson Controls pressure switches

These pressure switches are designed for use in a variety of applications involving refrigeration high or low pressure. Models supplied have a “whole range” design, enabling them to be used with refrigerants R22, R134A, R404A, R410A, CO2 and all other non-corrosive refrigerants which are within the operating range of the control.

The P77 & P78 series pressure controls may be used for control functionsor limit functions, depending on model number. All models are provided with alarm contacts (except P78ALA). All standard models have phosphor bronze bellows and brass pressure connections.

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• See table below in tabs for specifications of all types.