ensuring the system remains deactivated until temperatures drop to a safe 240°F

commonly cross-referenced as the P8 Plastic Float or 780328

The Modine 3H0400780003 is a high-performance L220-40F Limit Switch designed for critical thermal protection in Modine Hot Dawg units and industrial air handlers

always verify the part number against the specific HVAC parts list for the model in question

which avoids bearing damage and oil pump cavitation during startup

Resideo TH1100DV1000 Thermostat 320720-756 ensuring the system remains deactivatedThe Resideo TH1100DV1000 Thermostat, part of the Honeywell Home PRO 1000 Series, is a vertically oriented, non programmable control tailored for 1 Stage Heat Only applications. Engineered for field reliability, this unit integrates seamlessly with 24VAC conventional gas or oil systems as well as 750mV millivolt floor and wall furnaces. Its dual powered design allows for operation via 2 AA batteries or a direct hardwired connection to the C wire. For