Precise tolerances on the high-temperature diaphragm prevent bypass leakage

or high-voltage surges on the primary 120V line

allowing technicians to fine-tune supply air temperature thresholds based on specific equipment specs

the NBR (Buna-N) seals are rated for a maximum fluid temperature of 180°F

engineered to maintain the responsiveness and reliability of your automation systems

Armstrong Furnace R38691B-001 Ignition Control Freon Precise tolerances on the high-temperatureEnsure the consistent and safe operation of your heating system with the Armstrong Furnace R38691B 001 Ignition Control. As a genuine OEM ignition control module, this component is specifically engineered for Armstrong Air HVAC equipment, providing a precise 208 240V interface to manage the furnace ignition process. Whether you are maintaining a residential unit or high demand commercial heating applications, this control board acts as the central