... same time, low maintenance cost 2. Longer life: Special design engine has longer life and overhaul time of 30000hours 3 ... ,ECU and spark system, Gas and Air Mixer,Radiator Fan,Fire protection system,Air filter, oil filter, Muffler, MCCB, Manual books ... Voltage phase switch ,Electric current phase selecting switch.3. Protection setting for engineFor emergency shut down, overfeed, high water temperature ...