Abstract: Embodiments are directed to receiving, by a device comprising a processor, an indication that an air conditioning unit should turn on, commanding, by the device, a valve to open a specified extent based on the received indication, and subsequent to the valve opening to the specified extent, powering-on a piece of equipment that has an impact on refrigerant flow in the air conditioning unit.

Abstract: An air conditioning unit test system includes an a multi-sub-system air conditioning assembly including a plurality of sub-systems for conditioning an indoor environment. The a multi-sub-system air conditioning assembly includes a control board having control circuitry for controlling the plurality of sub-systems. The air conditioning unit test system includes a remote test communications device connected to the control board via a data communications link. The control board is configured to perform a configuration of tests for testing sub-systems of the multi-sub-system air conditioning assembly based on receiving a test request from the remote test communications device, to test the sub-systems based on the configuration of the tests, and to transmit results of the tests to the remote test communications device.

Abstract: A method of evaluating damper operation for a heating, ventilation and air conditioning (HVAC) system includes moving a plurality of dampers of the HVAC system collectively to a baseline damper position. The plurality of dampers is positioned at a flowpath including a fan driven by a motor. The fan is operating by switching the motor on and a baseline output level at the motor is measured. A first damper of the plurality of dampers is commanded to move from the baseline damper position to a first damper position and a first output level at the motor is measured. The first output level is compared to the baseline output level. A difference is indicative of successful movement of the first damper from the baseline damper position to the first damper position.

Abstract: A method of evaluating damper operation for a heating, ventilation and air conditioning (HVAC) system includes moving a plurality of dampers of the HVAC system collectively to a baseline damper position. The plurality of dampers is positioned at a flowpath including a fan driven by a motor. The fan is operating by switching the motor on and a baseline output level at the motor is measured. A first damper of the plurality of dampers is commanded to move from the baseline damper position to a first damper position and a first output level at the motor is measured. The first output level is compared to the baseline output level. A difference is indicative of successful movement of the first damper from the baseline damper position to the first damper position.

Abstract: An air conditioning unit test system includes an a multi-sub-system air conditioning assembly including a plurality of sub-systems for conditioning an indoor environment. The a multi-sub-system air conditioning assembly includes a control board having control circuitry for controlling the plurality of sub-systems. The air conditioning unit test system includes a remote test communications device connected to the control board via a data communications link. The control board is configured to perform a configuration of tests for testing sub-systems of the multi-sub-system air conditioning assembly based on receiving a test request from the remote test communications device, to test the sub-systems based on the configuration of the tests, and to transmit results of the tests to the remote test communications device.

Abstract: Embodiments are directed to receiving, by a device comprising a processor, an indication that an air conditioning unit should turn on, commanding, by the device, a valve to open a specified extent based on the received indication, and subsequent to the valve opening to the specified extent, powering-on a piece of equipment that has an impact on refrigerant flow in the air conditioning unit.