35-725911-117 | Fenwal 120 VAC Direct Spark Ignition Control, 3-Try / 15 s

Fenwal · Industrial Automation & Electrical

Description  The Fenwal 35-725911-117 is a 120 VAC microprocessor-based direct spark ignition (DSI) control that provides reliable, repeatable burner ignition for gas-fired equipment. Factory-configured for a three-try, 15-second trial-for-ignition sequence, it streamlines installation with compact packaging and multi-pin connector wiring.     Technical Specifications  Condition New/Never Used Surplus Brand Fenwal Category Heating & Ignition Parts Part Number 35-725911-117 Subcategory Ignition Modules Input Power 102–138 VAC, 50/60 Hz Input Current 50 mA @ 120 VAC (typ.) Ignition Type Direct Spark Ignition (DSI), microprocessor-based Ignition Trials 3-try (this model); family supports 1 or 3 Trial-for-Ignition Time 15 seconds (this model); family supports 4/7/10/15 s Reset Method Thermostat/power-off reset Flame Sense Single spark & sense or remote sense; ≥ 1.0 µA required Flame Failure Response ≤ 0.8 s Gas Valve Rating 1.5 A @ 120 VAC Gas Types Natural, LP, manufactured gas Spark Rate Line frequency (50/60 Hz) Moisture Resistance Conformal coated to 95% RH; potted versions to 100% RH Mounting Options Open board with stand-offs or potted module Diagnostics On-board LED (fault codes) + flame current test pins Certifications CSA/ANSI (Automatic Ignition Systems) Shipping Weight 3.0 lb Weight 2.3 oz (integral stand-offs) / 6.1 oz (potted), module only     Information About 35-725911-117 The 35-725911-117 is part of Fenwal’s Series 35-72 family of 120 VAC DSI controls for natural, LP, and manufactured gas appliances up to 400 K BTU. It supports common mounting formats (open board with stand-offs or potted) and offers thermostat/power-off lockout reset. The controller’s microprocessor manages pre-/inter-purge timing, multiple ignition attempts, and flame sensing, while on-board diagnostics and flame-current test pins simplify commissioning and service. Typical applications include commercial cooking equipment, ceramic/black-body infrared heaters, and construction heaters. Key Features: 120 VAC DSI Control: Direct spark ignition for gas valves and burners on line-voltage appliances. Configured Sequence (This Model): 3-try ignition with 15 s trial-for-ignition for dependable light-off. Flexible Mounting: Open board with stand-offs or potted versions for harsh environments. Quick Wiring: Multi-pin connector speeds assembly and reduces wiring errors. Serviceability: Diagnostic LED with error codes and flame-current test pins for fast troubleshooting. Polarity Insensitive: Reduces risk of miswiring on installation. Certified Design: CSA/ANSI design certification for automatic ignition systems. The 35-725911-117 delivers the reliability and precision required for commercial and industrial gas ignition control.

Brand: Fenwal · Category: Industrial Automation & Electrical

Key features

• 120 VAC DSI Control: Direct spark ignition for gas valves and burners on line-voltage appliances.
• Configured Sequence (This Model): 3-try ignition with 15 s trial-for-ignition for dependable light-off.
• Flexible Mounting: Open board with stand-offs or potted versions for harsh environments.
• Quick Wiring: Multi-pin connector speeds assembly and reduces wiring errors.
• Serviceability: Diagnostic LED with error codes and flame-current test pins for fast troubleshooting.
• Polarity Insensitive: Reduces risk of miswiring on installation.
• Certified Design: CSA/ANSI design certification for automatic ignition systems.

Specifications

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