Honeywell VS820A1088 - PowerPile Millivolt Combo Gas Valve

Honeywell vs820a1088 - powerpile millivolt combo gas valve the honeywell vs820a1088 is a 3/4 in. npt x 3/4 in. npt powerpile millivolt combination gas valve with 3.5 in. wc adjustable pressure regulator setting. combines a lite-rite manual gas cock, safety shutoff pilotstat assembly, millivoltage automatic valve operator, and optional gas pressure regulator. requires 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. features: the vs820a1088 includes pilot flow adjustment screw. it's 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. offers complete safety shutoff on pilot flame failure and lite-rite (off-pilot-on) lighting sequence. the eco connector for v800 models is part no. 392451-1.