Fenwal 35-679932-551 Ignition Control

IGNITION CONTROL

Fenwal 35-679932-551 Ignition Control | 24 VAC Proven HSI with Combustion Blower Relay

Upgrade your commercial or industrial heating system with the Fenwal 35-679932-551 Ignition Control, a reliable and advanced 24 VAC Proven Hot Surface Ignition (HSI) module designed for appliances exceeding 400,000 BTU. Engineered with microprocessor-based precision, this ignition control ensures safe and efficient operation through built-in diagnostics, flame verification, and pressure switch monitoring.

Key Features:

• Microprocessor-based 24 VAC ignition control

• Proven pressure switch input for safe operation

• Integrated combustion fan output

• Compatible with 24/120/240 VAC hot surface ignitors

• ASME CSD-1 compliant models available (consult factory)

• LED diagnostics for easy troubleshooting

• Pre-purge, inter-purge, and post-purge timing

• Remote flame sensing and reset capability

• Flame current test pins for accurate measurement

• Conformal coated for high moisture resistance (up to 95% RH, non-condensing)

Technical Specifications:

• Voltage Input: 18–30 VAC Control | Line: 24/120/240 VAC

• Output Ratings: 5.0A for gas valve & HSI element, 15A inducer fan relay

• Trial for Ignition: 4 seconds | Ignition Attempts: Single try

• Purge Times: 15s pre-purge, 15s inter-purge, 30s post-purge

• Temperature Range: -40°F to +165°F (-40°C to +73°C)

• Enclosure: Gray Noryl N-190 | Weight: 8 oz

Applications:

• Ideal for commercial and industrial gas appliances

• Suitable for natural, LP, or manufactured gas systems

• Meets ASME CSD-1 standards for combustion systems (consult model variant)

Why Choose Fenwal?
With proven performance and durable construction, Fenwal ignition controls are trusted by professionals for their safety, reliability, and smart diagnostics. The 35-679932-551 model offers peace of mind for high-BTU applications, providing intelligent ignition management and system protection.