Lennox 37Y69 – VSTAT10P-1 External Contact Control is an OEM external contact interface module designed for use with compatible Lennox mini-split and VRF HVAC systems. This control allows simple on/off operation and external signal integration using dry contact inputs, making it ideal for automation, occupancy control, and auxiliary system interfacing.

The VSTAT10P-1 enables HVAC units to be controlled by external devices such as hotel key card switches, occupancy or motion sensors, door or window contacts, timed relays, and other low-voltage control systems. When a contact is opened or closed, the module communicates directly with the indoor or outdoor unit control board to enable or disable operation based on system configuration.In addition to external control input, the module provides relay outputs that can be used for system status or error signaling to external monitoring or building automation systems. On supported systems, it can also be configured to activate special operating modes such as night quiet mode.The Lennox 37Y69 external contact control mounts inside the unit cabinet or nearby using the included enclosure and wiring harness. Proper configuration of indoor unit option settings is required during installation to enable external contact functionality.This OEM Lennox accessory is commonly used in light commercial, hospitality, and multi-zone applications where automated or third-party control integration is required.