The McDonnell & Miller 194-B-1 Replacement Casting is a critical structural component designed specifically for the Series 194 Combination Low Water Cut-Off and Pump Controller

This heat exchanger is designed for specific furnace chassis

The flow characteristic is determined by the LinVP plug and cage geometry

while the adjustable flange enables various insertion depths to locate the sensing bulb in the optimal portion of the air duct

Voltage drops below the specified threshold can lead to intermittent spark failure or erratic diagnostic codes

Johnson Controls Y63T22-0 Transformer 326010-701 The McDonnell & Miller 194-B-1The Johnson Controls Y63T22 0 is a high performance Class 2 control transformer engineered for the rigorous demands of 24 VAC control systems. With a robust 50 VA rating, this multi tap unit is indispensable for powering HVACR digital controllers, gas ignition systems, and motor actuators. The multi tap primary allows for maximum field flexibility, supporting 120 208 240 V inputs through standardized color coded leads, which reduces truck stock