Honeywell VS820A1088 Millivolt Combination Gas Valve

Honeywell VS820A1088 Millivolt Combination Gas Valve. These gas controls combine a Lite-Rite manual gas cock, safety shutoff Pilotstat assembly, millivoltage automatic valve operator, and optional gas pressure regulator. They require the use of a 750 mv Powerpile generator (thermopile). The generator, heated by the pilot burner flame, provides the electrical energy to operate the combination gas control. A millivoltage thermostat with suitable accessory controls completes the automatic control system for the heating appliance. Include pilot flow adjustment screw. Easy to install, adjust and service; all adjustments and connections are accessible from top of control. Add separate energy cutoff (ECO) where codes call for dual safety shutoff. Complete safety shutoff on pilot flame failure. LITE-RITE (OFF-PILOT-ON) lighting sequence. ECO connector for V800 models, Part No. 392451-1. Replaces: VS820A1807 and VS820A1815 Functional Replacement for: VS820A1039