Mercury flame sensor systems are being replaced by appliancemanufacturers due to limited availability of the mercury switch and strictU.S. environmental standards. To meet this demand, Fenwal Controls, aleading manufacturer of automatic gas ignition and temperature controls, nowoffers a unique, one-piece 120 VAC microprocessor based pilot ignitioncontrol that is mercury-free.The Fenwal 35-72P ignites the pilot flame on LP or natural gas heatingequipment, providing high energy sparking, dependable flame sensing andautomatic control of the main gas valve. A custom control sequence withinthe system opens the main gas valve only after the pilot flame is sensed.This allows the 35-72P to replace both the pilot re-igniter and the mercuryflame switch previously used in many commercial cooking appliances."A number of our customers are phasing out pilot relighter and mercury flameswitch combinations to meet environmental and recycling regulations," saidJerry Harting, Director of Sales and Marketing for Fenwal Controls. "We'repleased to offer a gas ignition control that meets green considerations aswell as the strict product performance and reliability requirements ofOEMs."The 35-72P is also suited for use in specialty applications not requiringgas valve control the V1 output can be used to indicate presence of theflame. The 120VAC output level interfaces easily to diagnostic panels orother control systems. The 35-72P is design certified by CSA Internationalto CAN C22.2 #199-M89 and ANSI Z21.20 for Automatic Ignition Systems.Features:· Two mounting configurations (Open Board with Stand-Offs for space andcost savings, or Potted for washdown and high vibration applications)· Multi-pin connector enables fast assembly· Continuous spark ignition whenever the pilot flame is not sensed· Single spark and flame sense design· Control of main gas valve whenever flame is sensedFeatures: • Two mounting configurations (Open Board with Stand-Offs for space and cost savings, or Potted for washdown and high vibration applications) • Multi-pin connector enables fast assembly • Continuous spark ignition whenever the pilot flame is not sensed • Single spark and flame sense design • Control of main gas valve whenever flame is sensed
