By sequencing the inductive load of the blower motor and the resistive load of the heat strips

provided the metering device is correctly matched to the outdoor condenser's capacity

ensure you are utilizing the correct orifice size for the specific fuel type being used at the job site to prevent carboning or overheating

replacing the entire Bunn replacement hopper is the most reliable long-term fix

What causes a draft pressure switch to trip besides a mechanical failure

Carrier HN67ER032 Relay 328140-751 By sequencing the inductive loadThe Carrier HN67ER032 Time Delay Relay is a critical HVAC control board component designed for precise timing sequences in residential and commercial air handling units. This SPDT time delay relay operates on a 24V control circuit, facilitating the necessary lag between the thermostat call and blower motor engagement to ensure optimal heat exchanger temperatures and prevent liquid slugging in cooling cycles. As a genuine OEM Carrier replacement part,