Fenwal 35-615922-125 Module 320788-703 If the compressor won't start

If the compressor won't start despite normal pressures

and R513A for future-proof serviceability

Adjustable Range: Allows for fine-tuning in the field to meet specific duct static pressure requirements

while the B-port is modified to maintain constant common port flow in bypass configurations

verifying proper combustion air flow before the ignition sequence initiates

Fenwal 35-615922-125 Module 320788-703 If the compressor won't startThe Fenwal 35 615922 125 is a professional grade 24VAC DSI module specifically engineered for Greenheck make up air units and high demand gas fired appliances. This microprocessor based direct spark ignition control provides precise sequence management, integrating an inducer blower relay to coordinate combustion airflow with the ignition cycle. As a veteran preferred HVAC ignition control board, it features DETECT A FLAME technology for robust flame