Lennox 56L55 Orifice 322027-701 Critical Protection: Reliable electrical break

Critical Protection: Reliable electrical break at 40°F prevents system operation under specific thermal conditions

Frequent trips usually signal a serious issue like a cracked heat exchanger or a soot-clogged secondary heat exchanger that is pushing flames toward the switch

000 BTU/hr max capacity is dependent on the differential pressure

Common Questions What are the signs that a collector box needs to be replaced

Lennox 56L55 Orifice 322027-701 Critical Protection: Reliable electrical breakThe Lennox 56L55 Orifice is a genuine OEM component engineered for precision fuel regulation in high efficiency gas furnaces and packaged rooftop units converted for liquid propane (LP) gas usage. This #52 LP orifice is critical for maintaining the correct stoichiometry in the burner assembly, ensuring stable combustion and preventing soot accumulation or delayed ignition often caused by improper drill sizes. Whether you are performing a natural gas