Stable resistance output minimizes signal interference in complex building automation systems

What is the purpose of the manual fan switch on this unit

These are identical parts

Integrated flood sensors are compatible with this series via separate activation kits for building management system alerts

and thermopile required for the Icon System interface

Lennox 81G65 Relay 322055-301 Stable resistance output minimizes signalThe Lennox 81G65 Latching Relay is a specialized DPDT (Double Pole Double Throw) control component engineered for precise electrical switching in commercial and residential HVAC systems. Operating on a 24VAC 50 60Hz coil, this relay utilizes a magnetic latching mechanism that maintains its contact state without requiring a continuous power signal. This design is essential for HVAC lockout circuits and energy saving control logic where maintaining