Fenwal 35-405201-103 Module
HomeStore

Fenwal 35-405201-103 Module

Fenwal 35-405201-103 Module

The Fenwal 35-405201-103 Module is a high-performance microprocessor-based 24 VDC gas ignition control engineered for reliable spark-to-pilot ignition and continuous flame monitoring. Designed specifically for the latest generation of gas-fired HVAC equipment, this Intermittent Pilot (IP) ignition module provides precise control in commercial cooking, boilers, and industrial combustion systems. A critical technical feature of this unit is the integrated 15-second pre-purge cycle, which clears the combustion chamber of residual gas before the 7-second trial for ignition (TFI) sequence begins. This safety logic significantly reduces the risk of delayed ignition and nuisance lockouts in high-demand environments. The module is configured for a single-try ignition sequence and includes on-board LED diagnostics to streamline troubleshooting for service technicians and contractors. Built with a compact, moisture-resistant form factor, it ensures seamless integration into existing control compartments and is compatible with both natural gas and LP gas configurations. Professionals rely on this module for its high-energy spark and accurate flame rectification sensing, which requires a minimum of 0.3 microamps for stable operation.

Key Benefits:
  • Microprocessor Control: Delivers repeatable timing sequences for internal safety checks and ignition module with prepurge functionality.
  • Enhanced Safety: The 15-second pre-purge period and dedicated lockout indicator ensure safe operation in gas-fired appliances.
  • Diagnostic LED: Simplifies fault identification with specific flash codes for ignition failure, low voltage, and flame sense errors.
  • Versatile Compatibility: Operates efficiently on standard 24 VDC control circuits with a durable design suitable for extreme temperature ranges.
Common Questions:
  • What are the diagnostic codes for the 35-405201-103? The LED provides status updates: steady ON indicates normal operation, while 3 flashes typically signal an ignition lockout requiring a manual reset or power cycle.
  • How do I measure the flame current on this Fenwal module? Technicians should use a DC micro-ammeter connected to the FC+ and FC- terminals; a reading of 1.0 micro-amps or higher is recommended for consistent flame supervision.
  • Can this unit replace a 24 VAC module? No, this is a 24 VDC burner control. verify your transformer output and circuit polarity before installation to prevent damage to the microprocessor.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.

$66.65

Original: $190.42

-65%
Fenwal 35-405201-103 Module

$190.42

$66.65

Fenwal 35-405201-103 Module

The Fenwal 35-405201-103 Module is a high-performance microprocessor-based 24 VDC gas ignition control engineered for reliable spark-to-pilot ignition and continuous flame monitoring. Designed specifically for the latest generation of gas-fired HVAC equipment, this Intermittent Pilot (IP) ignition module provides precise control in commercial cooking, boilers, and industrial combustion systems. A critical technical feature of this unit is the integrated 15-second pre-purge cycle, which clears the combustion chamber of residual gas before the 7-second trial for ignition (TFI) sequence begins. This safety logic significantly reduces the risk of delayed ignition and nuisance lockouts in high-demand environments. The module is configured for a single-try ignition sequence and includes on-board LED diagnostics to streamline troubleshooting for service technicians and contractors. Built with a compact, moisture-resistant form factor, it ensures seamless integration into existing control compartments and is compatible with both natural gas and LP gas configurations. Professionals rely on this module for its high-energy spark and accurate flame rectification sensing, which requires a minimum of 0.3 microamps for stable operation.

Key Benefits:
  • Microprocessor Control: Delivers repeatable timing sequences for internal safety checks and ignition module with prepurge functionality.
  • Enhanced Safety: The 15-second pre-purge period and dedicated lockout indicator ensure safe operation in gas-fired appliances.
  • Diagnostic LED: Simplifies fault identification with specific flash codes for ignition failure, low voltage, and flame sense errors.
  • Versatile Compatibility: Operates efficiently on standard 24 VDC control circuits with a durable design suitable for extreme temperature ranges.
Common Questions:
  • What are the diagnostic codes for the 35-405201-103? The LED provides status updates: steady ON indicates normal operation, while 3 flashes typically signal an ignition lockout requiring a manual reset or power cycle.
  • How do I measure the flame current on this Fenwal module? Technicians should use a DC micro-ammeter connected to the FC+ and FC- terminals; a reading of 1.0 micro-amps or higher is recommended for consistent flame supervision.
  • Can this unit replace a 24 VAC module? No, this is a 24 VDC burner control. verify your transformer output and circuit polarity before installation to prevent damage to the microprocessor.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.

Product Information

Shipping & Returns

Description

The Fenwal 35-405201-103 Module is a high-performance microprocessor-based 24 VDC gas ignition control engineered for reliable spark-to-pilot ignition and continuous flame monitoring. Designed specifically for the latest generation of gas-fired HVAC equipment, this Intermittent Pilot (IP) ignition module provides precise control in commercial cooking, boilers, and industrial combustion systems. A critical technical feature of this unit is the integrated 15-second pre-purge cycle, which clears the combustion chamber of residual gas before the 7-second trial for ignition (TFI) sequence begins. This safety logic significantly reduces the risk of delayed ignition and nuisance lockouts in high-demand environments. The module is configured for a single-try ignition sequence and includes on-board LED diagnostics to streamline troubleshooting for service technicians and contractors. Built with a compact, moisture-resistant form factor, it ensures seamless integration into existing control compartments and is compatible with both natural gas and LP gas configurations. Professionals rely on this module for its high-energy spark and accurate flame rectification sensing, which requires a minimum of 0.3 microamps for stable operation.

Key Benefits:
  • Microprocessor Control: Delivers repeatable timing sequences for internal safety checks and ignition module with prepurge functionality.
  • Enhanced Safety: The 15-second pre-purge period and dedicated lockout indicator ensure safe operation in gas-fired appliances.
  • Diagnostic LED: Simplifies fault identification with specific flash codes for ignition failure, low voltage, and flame sense errors.
  • Versatile Compatibility: Operates efficiently on standard 24 VDC control circuits with a durable design suitable for extreme temperature ranges.
Common Questions:
  • What are the diagnostic codes for the 35-405201-103? The LED provides status updates: steady ON indicates normal operation, while 3 flashes typically signal an ignition lockout requiring a manual reset or power cycle.
  • How do I measure the flame current on this Fenwal module? Technicians should use a DC micro-ammeter connected to the FC+ and FC- terminals; a reading of 1.0 micro-amps or higher is recommended for consistent flame supervision.
  • Can this unit replace a 24 VAC module? No, this is a 24 VDC burner control. verify your transformer output and circuit polarity before installation to prevent damage to the microprocessor.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.