Laars Heating Systems RTXD7109 Replace Kit 318518-761 Manual Reset Safety: Prevents dangerous

Manual Reset Safety: Prevents dangerous short-cycling by requiring a manual override after a high-limit event

Optimized Efficiency: Precisely regulates R-410A refrigerant flow to maximize heat transfer across the evaporator coil

Optimized Airflow: The 32-degree pitch is engineered to maximize heat exchange efficiency in high-tonnage condenser units

quieter operation

It features a high-performance 24V VAC coil with an 11 Ohms DC resistance

Laars Heating Systems RTXD7109 Replace Kit 318518-761 Manual Reset Safety: Prevents dangerousThe Laars Heating Systems RTXD7109 Replace Kit is a direct OEM solution for restoring the Neotherm Wave 3 4A control architecture. Engineered for high efficiency condensing boilers and volume water heaters, this Neotherm Module Replace Kit serves as the central processing unit for system modulation and safety logic. As a veteran grade HVAC replacement part, it handles critical functions including integrated PID temperature control, direct spark