Maxitrol uses color-coding or plating (like this one) to distinguish pressure ranges

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This specific model features a NEMA 1 enclosure intended for indoor duct applications

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High Precision Sensing: The 1K Ohm Platinum resistance element provides a linear response and minimizes drift over time

Lochinvar & A.O. Smith 100112697 Wiring Harness L99H008 Maxitrol uses color-coding or platingThe Lochinvar & A. O. Smith 100112697 Wiring Harness is a critical OEM component designed for high efficiency commercial boilers and gas water heaters. This specialized blower wiring harness features a 61. 5 inch lead and integrated channels, ensuring precise signal transmission between the main control module and the combustion blower assembly. As a genuine HVAC replacement part, it is engineered to withstand the thermal stresses of continuous burner