The variable pitch is adjusted by loosening the set screws and rotating the threaded flange to change the effective diameter

reducing installation time and eliminating the need for mounting modifications

Reduces the risk of ignition failure and helps maintain peak furnace performance

reducing downtime on-site for contractors

leak-free connection when used with standard 1/4" compression fittings

Warrick 26NMB1A0A Control 322838-753 The variable pitch is adjustedThe Warrick 26NMB1A0A Liquid Level Control is a specialized conductive probe controller engineered for low water cutoff and pump down applications. This 120Vac module operates on a 10,000 ohm sensitivity threshold, making it ideal for standard potable water or steam boiler environments where precise resistance detection is required. As a direct acting control, the SPDT relay (1 NO 1 NC) energizes when the liquid level reaches the probe, providing a