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Honeywell VS820A1054 Standard Opening Gas Valve

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Price: $531.58
Item Number: VS820A1054
Manufacturer Name: Honeywell
Manufacturer Part No: VS820A1054/U

Honeywell VS820A1054 Standard Opening 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.

Product Specifications

  • Application: Self-powered automatic control. Use with 750 mV pilot generator.
  • Dimensions (in.): 4 3/4 in. high x 4 1/16 in. wide x 3 3/16 in. deep
  • Dimensions (mm): 121 mm high x 103 mm wide x 81 mm deep
  • Includes: Two 3/4" x 1/2" reducer bushing; One 1/2" x 3/8" reducer bushing
  • Mounting: 0 to 90 degrees in any direction from the upright position of the gas control knob, including vertically.
  • Approvals, Underwriters Laboratories Inc.: UL Component Recognized MCCZ2.MH5323
  • Approvals, CSA: CSA International: 112395
  • Electrical Connections: Combination screw and 1/4 in. male quick connects.
  • Voltage: 750 mV
  • Operating Temperature Range (F): 32 F to 175 F
  • Operating Temperature Range (C): 0 C to 79 C
  • Body Pattern: Straight-through, multi-tapped with 1/2 in. right and left outlets plugged
  • Opening Characteristics: Standard Opening
  • Pressure Ratings (psi): 1/2 psi
  • Pressure Ratings (kPa): 3.5 kPa
  • Inlet/Outlet Size (in.): 3/4 in. NPT x 3/4 in. NPT with 1/2 in. NPT side outlets
  • Pilot Gas Outlet: Compression fitting for 1/4 in. OD tubing.
  • Pressure Tapping: Outlet pressure tap: 1/8 in. NPT with plug
  • Type of Fuel: Natural
  • Capacity (kBtuh): At 1 in. wc p.d.-- 335,000 BTU/hr: 34,000 BTU/hr minimum, 425,000 BTU/hr maximum
  • Pressure Regulator: Standard
  • Pressure Regulator Setpoint (in. wc): 3.5 in. WC
  • Pressure Regulator Setpoint (kPa): 0.87 kPa
  • Ignition Type: Standing Pilot

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