Designed for wall mounting

Constructed with a heavy-duty brass body

Key Benefits Optimized Airflow: The 23-degree pitch provides the exact cubic feet per minute (CFM) required to keep condenser coil temperatures within safe operating limits

Technicians should always use a draft gauge or manometer to calibrate the balance weights for precise over-fire draft conditions

While many thermostatic expansion valves feature an adjustment stem

Lennox 71L20 Wiring Harness Els PW 29614 Designed for wall mountingThe Lennox 71L20 Wiring Harness is a critical OEM replacement component designed specifically for direct connection between the HVAC furnace control board and the gas valve assembly. This harness ensures low voltage signal integrity and consistent power transmission, which are vital for proper sequence of operation and combustion safety. When a harness exhibits high resistance or physical degradation at the connectors, it often manifests as