Daikin-McQuay 470009 Economizer Controller 30067439-890 making it a versatile stock

making it a versatile stock item for contractors servicing various dual-element tank configurations

The Trane RLY1172 was superseded by part number RLY01172

such as when replacing the stainless steel diaphragms or the main spring

Its robust disc-type construction is built to withstand rigorous industrial heating cycles

Installation of this Aaon replacement part is streamlined via 1/4-inch quick-connect tabs and a dedicated 3-pin MTA connector for the tach sensor

Daikin-McQuay 470009 Economizer Controller 30067439-890 making it a versatile stockThe Daikin McQuay 470009 Economizer Controller is the current OEM replacement for the legacy PD470009. Engineered for commercial HVAC energy efficiency, this logic module optimizes free cooling by precisely modulating outside air dampers and exhaust air dampers based on environmental conditions. By monitoring mixed air temperature through integrated sensors, the 470009 reduces mechanical cooling demand, directly lowering operational costs while