Resideo TH8110R1008 Thermostat 321894-708 or the control board flashing

or the control board flashing a diagnostic code for "pressure switch stay open

This coil is specifically designed for the Danfoss EVR series (EVR 2 through EVR 40)

While the bore size is 1/2 inch

a 1/2" ACME adapter is required to interface with standard vehicle charging ports

Dual Function Control: Combines low-pressure cutout and high-pressure safety limits into a single

Resideo TH8110R1008 Thermostat 321894-708 or the control board flashingThe Resideo TH8110R1008 is a professional grade VisionPRO 8000 with RedLink touchscreen thermostat designed for 1H 1C conventional systems and single stage heat pumps. Operating on a versatile 18 30Vac or 750mV platform, this unit features 7 day programmable logic with a patented interview based setup that eliminates the need for complex manuals during commissioning. It functions as a standalone thermostat or integrates into a broader RedLink wireless