Figure 6-2
II. Principle of heating system
Water heating is applied for the heating system, with the coolant of engine as the heat source.
Heating system mainly consists of heat exchanger, coolant pipeline, blower, air duct, air vent, and
control mechanism, etc. The housing of warm air heating set and the housing of evaporator are
combined together, using the same blower and air duct with refrigeration system. See Figure 6-3:
Figure 6-3
1. Air duct 2. Coolant pipeline 3. Blower 4. Heat exchanger
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