High Pressure Limit Switch

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.

High pressure limit switch.

Long distance light beam. Rated ip69k these switches can withstand high pressure high temperature washdowns and temporary submersion. Shorter and thinner than other safety limit switches these are sized to fit tight spaces. They can be wired normally open no or normally closed nc.

Compact safety limit switches. This pressure will be based on specifications for maximum pressure for the refrigeration systems high side and the type of refrigerant used. It s also known as a fan limit switch or simply a limit switch. The switch makes sure the furnace is operating safely and at its desired settings.

However they are commonly found on heat pumps. The key is to protect the compressor from extremely high pressures that could damage. The high side if equipped with a high pressure switch should be set according to the manufacturer s recommendation. Switches are single pole double throw spdt so they switch one circuit on or off.

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. Standardized limit switches are industrial control components manufactured with a variety of operator types including lever roller plunger and whisker type. They are often used in pump and hydraulic power applications.