the 81L76 utilizes a C2-3 control board architecture to ensure stable communication between the thermostat and system hardware

Always verify local plumbing codes and manufacturer orientation arrows before final piping

When executing a Lochinvar water heater gas conversion

To maintain circuit integrity

This specific Modine replacement part is essential for maintaining code compliance and operational safety in unit heater troubleshooting

Grundfos 012DC201 Pump 320735-701 the 81L76 utilizes a C2-3The Grundfos 012DC201 is a commercial grade 1 3 HP stainless steel submersible pump engineered for reliable dewatering and effluent transport. Built with a corrosion resistant stainless steel housing, this unit handles aggressive fluids and wastewater with high duty cycle performance. This specific configuration features a manual float switch for controlled operation and a 25ft power cord, making it ideal for deep basin applications or sites with