High Pressure Limit Switch

Limit switch is a switch operated by the motion of a machine part or presence of an object they are used for control of a machine as safety interlocks or to count objects passing a point.

High pressure limit switch.

The key is to protect the compressor from extremely high pressures that could damage. Rated ip69k these switches can withstand high pressure high temperature washdowns and temporary submersion. Compact safety limit switches. In the case of a heat pump in cooling mode the high pressure switch is used to make sure that outdoor unit can reject heat with the outside air.

They can be wired normally open no or normally closed nc. It s also known as a fan limit switch or simply a limit switch. Designed for high pressure applications these switches electrically activate automated controls or alarms when a set pressure is reached. This pressure will be based on specifications for maximum pressure for the refrigeration systems high side and the type of refrigerant used.

Switches are single pole double throw spdt so they switch one circuit on or off. The high side if equipped with a high pressure switch should be set according to the manufacturer s recommendation. High and low pressure switches may be installed on the refrigerant tubing of some air conditioning systems. Long distance light beam.

The switch makes sure the furnace is operating safely and at its desired settings. However they are commonly found on heat pumps. Shorter and thinner than other safety limit switches these are sized to fit tight spaces.