Attributes . The XCM25D controller is designed to be a powerful, flexible controller for use in multiple applications. It has been developed for condensing units and allows the adjustment of all relevant parameters by the user. The controller is designed for usage in an outdoor refrigeration unit. It is rated to be used for the following environment: ? Outdoor controller ambient temperature for operation: -40?C to 60?C ? Ambient temperature for storage: -40?C to 80?C ? Maximum humidity: 90% at 48?C (non-condensing) ? Board power: 24V AC +15%/-20% ? Voltage sensing capabilities - Single phase: 100-120, 200-240V AC ? 10% ? Voltage sensing capabilities - Three phase: 200-240, 380-460, 575V AC ? 10% The controller allows for easy commissioning by the technician with the factory settings at the highest program level. It also offers the possibility to make substantial changes to the system optimization in further programming levels. Advanced functionality can also be activated. The following functions are covered by the controller: ? Condensing unit control ? Case control ? Condenser fan control ? Defrost ? Voltage and current sensing (compressor protection) ? Liquid and vapour injection ? System EXV control ? Digital compressor control . Names