Lennox 15Z69 Thermostat R-407C the VT3221 delivers consistent HVACR

the VT3221 delivers consistent HVACR valve performance in demanding environments

For veteran HVAC contractors and industrial electricians

and high-humidity service conditions

this 1-inch diameter shaft provides the high torsional strength and structural rigidity required to eliminate bowing and vibration in belt-drive blower assemblies

Always verify your specific model and serial number against the manufacturer’s technical manual before installation

Lennox 15Z69 Thermostat R-407C the VT3221 delivers consistent HVACRThe Lennox 15Z69 (M30) Thermostat is a professional grade Wi Fi enabled touchscreen thermostat designed for universal compatibility with both Lennox and non Lennox HVAC systems. Supporting 4 Heat 2 Cool stages, this unit serves as a direct cross reference for the 13H14 model, offering a robust upgrade for residential applications. Engineered with a 4. 3 inch LCD touchscreen, the M30 integrates Schedule IQ Technology and Smart Away Mode, which utilizes