... ,ISO 9001:2008 standard 1500W Electronical Diesel Engine Water Preheat System(For more information, pls visit our website, sunyear. ... 37~43°C ·Insulated resistance: ≥50MΩ ·Pressure test: ≥0.5MPa ·Electric intension: 1500V/min ·Electric power: 1500W,2000W ... , intelligent control system for genset, accessories for diesel engine and genset control system, e.g. engine controller, water preheater, automatic ...