🔍 Key Concepts

• Trace the standby heating line on the MP-CW-06 diagram and see what piece of equipment it connects to. • Compare the functions of the labeled Heater in the jacket water system and the standby heating coil near the evaporator. • Think about when an evaporator/distilling unit might need extra heat from the jacket water system (high load vs low load, running vs idle).

💭 Think About

• Ask yourself: Is a heating coil meant to remove heat from the engine or to supply heat to another piece of equipment? • Look at engine load conditions: when is there plenty of jacket water heat available, and when is there not enough heat for the evaporator to operate efficiently? • Which option describes a use that is different from the separate main Heater already shown in the jacket water line?

✅ Before You Answer

• Verify on the drawing exactly where the standby heating branch comes off the main jacket water line and where it returns. • Confirm whether the standby heating coil is inside or associated with the evaporator rather than the jacket water cooler or the engine block itself. • Make sure the choice you pick matches a situation where the evaporator needs additional heat supplied rather than engine heat being removed.