What is the difference between the 193 and the 93 series controllers

up to four P470 controls can be wired to a single transducer for staged equipment or manifold applications

The 329605-401 typically refers to the physical control box assembly and housing

Compact Profile: The 3 cubic inch capacity is ideal for tight installations in reach-ins and small split systems

High Volume Performance: Supports up to 2500 CFH (4

Nordyne 664244 Manifold 321894-706 What is the difference betweenThe Nordyne 664244 Burner Tube Manifold is a critical OEM component designed for high efficiency fuel distribution in residential gas fired furnaces. Engineered for Nordyne M1MB and M1GB series furnace models, this precision machined burner tube manifold ensures uniform pressure across all burner orifices to maintain optimal combustion stability. As a veteran grade HVAC replacement part, it is constructed from heavy gauge, corrosion resistant