It is highly recommended to use this fixed OEM pressure switch to ensure the factory-specified safety parameters of the HVAC system are maintained without the risk of manual calibration errors

Fail-Safe Spring Return: Integrated mechanical spring ensures the damper returns to a safe position during power loss in under 25 seconds

Industrial-Grade Construction: Designed for high-voltage 480V HVAC systems with moisture-resistant lead wires and durable heating elements

Can I use a 4/5 ton coil if my unit is currently rated at 3

is a critical tube-mount sensor designed to monitor evaporator coil temperatures

Lochinvar & A.O. Smith 100278058 Adapter 323613-751 It is highly recommended toThe Lochinvar & A. O. Smith 100278058 Adapter is a critical venting component designed for professional high efficiency HVACR installations. This DuraVent appliance adapter is engineered specifically to transition between the units flue collar and the vent pipe system, ensuring a gas tight seal for Category II, III, and IV gas appliances. Built from premium grade materials, this adapter is compatible with condensing boilers and water heaters from the