IO Hvac Controls iO-DFK-ODT Thermostat 30067439-890 Installing an orifice larger than

Installing an orifice larger than #35 for a system rated for this part will lead to overfiring

this disc-style sensor features a normally closed circuit that provides essential protection against heat exchanger overheating

Optimized Heat Dissipation: High-grade copper conductors reduce thermal stress during 480V operation

extending the life of the internal bearings and windings

Quick Diagnostics: Integrated status LEDs simplify fault code identification

IO Hvac Controls iO-DFK-ODT Thermostat 30067439-890 Installing an orifice larger thanFor service technicians managing dual fuel configurations, the iO DFK ODT Outdoor Thermostat is a critical component for precise balance point control. This bi metal thermostat is engineered to interface directly with the iO DFK Dual Fuel Kit, enabling seasonal efficiency by managing the transition between a heat pump and a fossil fuel furnace. With a SPDT switch configuration and a control range of 0? F to 100? F (or 110? F depending on specific