an "open" reading typically indicates a fractured element requiring replacement

Whether you are troubleshooting a VAV control loop or upgrading a legacy Barber Colman network

this unit is a standard opening model

The thermostat includes an Auto-Changeover mode

While the Parker LLD163 provides exceptional contaminant control

Lennox 28W91 Ignition Wire 340793-762 an "open" reading typically indicatesThe Lennox 28W91 Ignition Wire is a critical 70 inch high voltage lead engineered for precise spark delivery in residential and commercial HVAC ignition systems. As a veteran grade OEM Lennox replacement part, this 70" ignition cable (model 100035 02) features heavy duty insulation designed to withstand the high thermal environment of a furnace combustion chamber without dielectric breakdown. The 70 inch length provides necessary slack for complex