Fenwal 35-665725-121 Ignition Control

24V 15SecP.P.30SecI.P.4SecTfi

Fenwal 35-665725-121 Ignition Control Module – Reliable Multi-Try Ignition Control for Gas-Fired Equipment

The Fenwal 35-665725-121 Ignition Control is a high-performance, microprocessor-based ignition control module engineered for dependable operation in gas-fired systems. Designed to support natural, LP, or manufactured gas, this model delivers safe and efficient ignition through a three-try ignition sequence with pre-purge, inter-purge, and post-purge functionality. Ideal for HVAC and commercial heating systems, it is compatible with 24 VAC mini-ignitors and includes a built-in combustion blower relay.

🔧 Key Features:

• Input Power: 18–30 VAC control voltage (Class 2 transformer), 300 mA max @ 24 VAC

• Ignitor Compatibility: 24 VAC mini-ignitor, 4-second heat-up time

• Control Sequences:

  • Pre-Purge: 15 seconds

  • Inter-Purge: 30 seconds

  • Trial for Ignition: 4 seconds

  • Post-Purge: 30 seconds

• Flame Sensitivity: 0.7 microamps min

• Temperature Range: Operates from -40°F to +176°F (-40°C to +80°C)

• Output Ratings:

  • Gas Valve: 2.0A max @ 24 VAC

  • Combustion Blower: 3.0 FLA max @ 120 VAC / 1.5 FLA max @ 240 VAC

  • Hot Surface Element: 5.0A max @ 120/240 VAC

• Moisture Resistant: Conformal coated for 95% R.H. non-condensing environments

• Durable Housing: Gray Noryl N-190 enclosure

📦 Product Specifications:

• Model: 35-665725-121

• Voltage: 24 VAC

• Weight: 8 oz (with enclosure)

• Mounting: Quick-connect terminals

• Tries for Ignition: 3 tries without auto-reset

✅ Applications:

This ignition control is ideal for:

• HVAC systems

• Furnaces and boilers

• Commercial gas appliances

• Industrial heating systems

Get dependable performance with the Fenwal 35-665725-121 Ignition Control.
Order now for fast shipping and expert customer support on all your HVAC needs!