When you are out in the field servicing high-efficiency hydronic systems

Maintenance is simplified through a diaphragm-isolated spring chamber

The 5300 series is recognized for its manual reset functionality and reliable snap-action switch mechanism

improving overall system stability and comfort control

Lennox Y6616 Maintenance Kit 326058-757 When you are out inThe Lennox Y6616 Maintenance Kit is a comprehensive OEM solution engineered for the Lennox PureAir PCO3 14 16 and PCO3S 14 16 air purification systems. As a technician, you know that maintaining indoor air quality requires more than just a standard filter swap; this kit provides the precise components needed to sustain photocatalytic oxidation within the air stream. The industrial grade MERV 16 air filter (Carbon Clean 16) measures 20x21x5 nominal and