Answer: (1) Differences in cooling effect of the cooler, such as scaling inside the cooler.
(2) Machine load conditions. If the pressure settings of two machines are different, the exhaust temperature will be affected.
(3) Machine water pipe connection method. To suit different working conditions, the machine water pipe connection method can be adjusted by valve adjustment, either in series or in parallel.
(4) Water pipe layout. If the series connection method is used, the machine temperature will inevitably be different.
