Lochinvar & A.O. Smith 100208380 Pressure Switch 320735-701 The Carrier HH18HA454 Limit Switch

The Carrier HH18HA454 Limit Switch is a critical safety component designed for precise thermal regulation within Carrier

Field-Selectable Logic: Features internal jumpers for direct acting (DA) or reverse acting (RA) modes

High Efficiency: ECM technology reduces electrical load and lowers utility costs for the end-user

this aftermarket alternative provides reliable beverage equipment motor replacement performance without the premium cost of OEM-branded parts

Using this OEM HVAC part avoids the alignment and seal issues common with aftermarket alternatives

Lochinvar & A.O. Smith 100208380 Pressure Switch 320735-701 The Carrier HH18HA454 Limit SwitchThe Lochinvar & A. O. Smith 100208380 Pressure Switch is a critical safety component engineered for precise combustion air proving in high efficiency boilers and water heaters. This OEM replacement part is factory calibrated to a 1. 05 inch water column (WC) set point, ensuring the integrated draft inducer or blower provides sufficient static pressure before the ignition sequence is initiated. Designed for compatibility with various Lochinvar Knight