{"product_id":"020-551","title":"020-551","description":"The Low Pressure Switch BZ is a critical safety component designed for residential and commercial HVAC systems, including central air conditioners and heat pumps. This air pressure switch acts as a protective sensor, monitoring the refrigerant levels within the cooling cycle. If the system pressure drops below a safe threshold—often due to a refrigerant leak or a restricted coil—this switch automatically interrupts the electrical circuit to shut down the compressor. By preventing the system from operating under low-pressure conditions, it protects expensive internal components from overheating and mechanical failure. This high-quality replacement air proving switch ensures your climate control system operates efficiently and safely, making it an essential part for routine maintenance or emergency HVAC repairs.\u003cbr\u003e\nType: Air Pressure Switch \/ Low Pressure Cutout\u003cbr\u003e\nSize: Compact\u003cbr\u003e\nApplication: Used in central air conditioning units and heat pump systems to monitor refrigerant pressure and provide compressor protection.\u003cbr\u003e\nSpecifications: Low-pressure safety cutout; air proving functionality; designed for HVAC refrigerant lines; helps prevent compressor burnout due to loss of charge.","brand":"BCFurnace","offers":[{"title":"SWITCH; LOW PRESSURE BZ \/ 020-551","offer_id":50216119370013,"sku":null,"price":71.59,"currency_code":"CAD","in_stock":true},{"title":"SWITCH; LOW PRESSURE BZ \/ SWT04455","offer_id":50216119402781,"sku":null,"price":71.59,"currency_code":"CAD","in_stock":true}],"url":"https:\/\/bcfurnace.myshopify.com\/products\/020-551","provider":"BCFurnace","version":"1.0","type":"link"}