The Carrier KM680009 Sight Glass is a heavy-duty moisture and liquid indicator engineered for commercial HVACR systems

This component serves as a direct replacement for the 32000109-003/U

drawing approximately 1

simplifying field wiring and stock requirements

When diagnosing a Bard furnace not igniting or experiencing inducer motor noise

Bard 8402-154 Limit Switch 340793-762 The Carrier KM680009 Sight GlassThe Bard 8402 154 Limit Switch is a critical safety component designed for high performance HVAC systems. This OEM replacement part features an L165 30 specification, meaning the switch is calibrated to open the electrical circuit at 165F and automatically reset once the temperature differential drops by 30F. Engineered with an exposed face and a distinctive orange faceplate for rapid thermal response and easy identification, this automatic reset