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Smith and Lochinvar burner assemblies
Standardized Pad Mount: The robust mounting plate simplifies installation in tight control cabinets
For technicians troubleshooting high-pressure systems
the 8402-145BX is the verified HVAC manufacturer direct replacement for the legacy 8402-145 part number
As a direct replacement for various commercial refrigeration timers
Aprilaire 4218 Distribution Tray 321894-709 Smith and Lochinvar burner assembliesThe Aprilaire 4218 Distribution Tray is a critical internal component designed specifically for the Aprilaire 500 series humidifier, including models 500, 500A, and 500M. This genuine Aprilaire humidifier part plays a vital role in maintaining peak HVAC humidity control by ensuring water is evenly dispersed across the water panel. Constructed from durable, heat resistant plastic, the Aprilaire 4218 features a calibrated design that prevents dry spots
