| 摘要 |
A field test circuit for an electronic control of a refrigeration unit. The test circuit has a field installed test panel with a control switch and a readout device for indicating that portion of the electronic control to be tested. A microprocessor is provided with a logic program that provides coded information regarding the stage of capacity of the refrigeration unit, the operational status of the unit, diagnostic information of the unit, and a test procedure for testing all inputs and outputs of the microprocessor. |
