it operates on a 250mV to 750mV signal

technicians should always verify their specific model’s wiring schematic to ensure a proper 24V or line-voltage connection

and system lockout

Does this unit include the external scaleplate and dial

ClimateMaster S17S0002N25U1 Control Board 320788-704 it operates on a 250mVThe ClimateMaster S17S0002N25U1 Control Board is a critical circuit board upgrade kit engineered as a direct replacement for discontinued ECM2 and DXM series boards. This OEM HVAC control board is specifically designed to restore full operational logic to geothermal heat pumps and water source heat pump units, serving as the high performance successor to legacy parts 17B0002N04, 17B0034N02, and 17B0034N01. For technicians tasked with resolving