Check the functionality of the control sequencing for all auxiliary systems, relevant to the turbine and driven equipment such as lube oil system, hydraulic oil system, oil coolers, starting means (motor & torque converter/gas expander/hydraulic starter & pumps etc.), enclosure and building ventilation systems, Fire & Gas detection system, compressor seal oil system, compressor dry gas seal system, process gas coolers, fuel and process gas valves, anti-surge system, etc.