Daikin-McQuay 470009 Economizer Controller 30067439-890 These are safety-critical devices

These are safety-critical devices

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

The Trane RLY1172 was superseded by part number RLY01172

295-inch length and keyway placement are specific to Trane engineering

Daikin-McQuay 470009 Economizer Controller 30067439-890 These are safety-critical devicesThe 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