RANCO HIGH-LOW PRESSURE CONTROLS The Ranco P32 low pressure control provides freeze protection or low refrigerant pro-tection on chillers and other refrigeration systems by sensing suction pressure. It is suitable for R-12, R-22, and R-502 refrigerants. A time delay is provided to allow for start-up in low ambient and momentary low pressure I can find the high pressure manual resets for r22/410a but I can only find auto-reset for the low pressure switches. Anyone know of any? Sent from my SAMSUNG-SM-G891A using Tapatalk Refrigeration Pressure Switches High precision controls at economical prices. These switches are encapsulated nonadjustable, SPST, direct mount switches for use with HFC, HCFC and CFC refrigerants. The switches are available with automatic reset in both open low and open high configurations and manual reset with open high switching. ACB cartridge pressure switch is a small disc type pressure switch for use in refrigeration and air conditioning systems. ACB is as standard equipped with a 6 amp contact system with automatic or manual reset. excellent protection against low suction pressure or high discharge pressure. The P70, P72, and P170 controls for high pressure applications are designed primarily for high pressure cut-out control, head-pressure control, and condenser fan cycling control on commercial refrigeration and air conditioning applications. Some models are UL (Underwriters Laboratories) Listed as refrigeration pressure limiting controls. Ranco Pressure Control - Auto Reset - High & Low Pressure. Technical. Scale: p.s.i. and bar (bar only for T.U.V. models). Connections to pressure line: 7/16 - 20 UNF straight output male connector, 1/4 flared female connector. More safety controls can be added such as a High Pressure Control. If high head pressure occurs for any reason the switch will open protecting the compressor. Controls can be automatic reset or manual reset. If the manual reset type trips, a little button pops out and the unit will not restart until the button is manually reset. Johnson Controls P100DA-35C - Open-High Switch Action Encapsulated SPST Pressure Contol with Manual Reset Lockout and Open Contruction - The P100 Series Encapsulated Pressure Controls are compact, economical, direct-mount, snap-action, On/Off pressure controls, available in a wide variety of factory-calibrated, non-adjustable pressure setpoints.

The P100 controls are designed primarily For the latest product updates, visit us online at johnsoncontrols.com, search commercial refrigeration The temperature of a refrigerated box can be controlled by a low-pressure control (LPC), instead of a thermostat, because of the pressure/temperature relationship in the refrigeration system. By cycling the compressor in response to the suction (low side) pressure, box temperature can be controlled. The use of a low-pressure control to maintain box temperature on commercial medium-temperature applications has been a common practice for many years. It allows remote condensing units to be controlled without any additional control wiring between the refrigerated box and its compressor. It works on The switches are available with automatic reset in both open low and open high configurations and manual reset with open high switching. These switches can also be used as operating controls in applications such as a low ambient condens