Fenwal 35-703920-009 Board

120v DSI BOARD, SPECIAL

Fenwal 35-703920-009 Ignition Control Board – 120V DSI SPECIAL

The Fenwal 35-703920-009 Ignition Control Board is a reliable, OEM-rated Direct Spark Ignition (DSI) control board designed for superior performance in residential and commercial heating systems. Engineered to handle harsh environmental conditions and deliver consistent ignition control, this 120V board is compatible with natural, LP, and manufactured gas.

Key Features:

• Input Power: 102–138 VAC, 50/60 Hz

• Current Draw: 350mA @ 120 VAC

• Gas Valve Rating: 1.5A @ 120 VAC

• Temperature Range: Operates from -40°F to +175°F (-40°C to +80°C)

• Flame Sense Current: Minimum 1.0 microamp

• Flame Sense Voltage: 120 VAC

• Spark Rate: Line frequency (50/60 Hz)

• Flame Failure Response Time: ≤ 0.8 seconds

• Moisture Resistance: Conformal coated for up to 95% RH environments

• Compatible Gases: Natural gas, propane (LP), and manufactured gases

Product Specifications:

• Type: Direct Spark Ignition Control Board

• Part Number: 35-703920-009

• Mounting Options: Integral stand-offs, potted, or case with cover

• Weight: Varies from 7.1 oz to 14.3 oz depending on configuration

Applications:

Ideal for HVAC systems requiring dependable ignition control under a wide range of environmental conditions. Commonly used in furnaces, boilers, and unit heaters from major brands.

OEM Quality Assurance:

This is a genuine Fenwal replacement part, ensuring exact fit, long-lasting performance, and factory-approved safety and reliability.

California Proposition 65 Warning: This product may contain materials known to the state of California to cause cancer and/or reproductive harm.