The CHA module is used to start and stop equipment for a single chiller. The startup and shutdown sequence and time delays can be configured by parameters. The startup sequence can be extended with status confirmation logic which will prevent starting the next sequence step if the previous step was not confirmed by a status feedback. The module provides alarming for condenser valve, chilled water valve, condenser pump mismatch alarm, chilled water mismatch alarm, chiller status alarm, and chiller common alarm. The minimum on and off timers and also the chiller recycle timer prevents the chiller against too many on and off commands.