Contractors managing commercial split systems or heavy-duty residential units rely on this OEM Lennox expansion valve for its robust brass construction and factory-calibrated settings

and routing the new 12-pin wire harness

Operating at 115 Volts and 3000 RPM

and hydraulic oil cooling systems

Applying 230V will result in immediate winding failure

Reznor 100712 Assembly 320788-703 Contractors managing commercial split systemsThe Reznor 100712 Assembly is a high precision regulated carryover assembly specifically engineered for propane (LP) gas conversion and lighter tube ignition systems. As a veteran technician knows, maintaining reliable cross lighting across the burner rack is critical for preventing delayed ignition and ensuring consistent combustion. This genuine OEM Reznor replacement part includes the necessary regulator assembly and brass compression fittings to