| 摘要 |
PURPOSE:To carry out accurate heating control by sending air into an air conditioning chamber provided on the lower course side of a heat exchanger by means of one blower while sending air into a hot water type heater in said air conditioning chamber by means of the other blower, and switching a blast quantity and mixing quantity. CONSTITUTION:A quick heating burner 4 burns a fuel fed from a fuel feeding device 9, to feed a combustion gas to an engine via a heat exchanger 5. And, air from a first blast blower 13 is heat exchanged with the combustion gas by the heat exchanger 5, and introduced into an air conditioning chamber 100 via a blast switching door 101. On the other hand, by operating a second blast blower 16 which is a blower for a hot water heater while adjusting an air mixing switching door 102, a cool air is fed directly into the air conditioning chamber 10 without passing through a heater core 14, or part of or the whole quantity of the cool air is made pass through the heater core 14 to be changed to a hot air and fed into the air conditioning chamber 100. After that, heated air is blown out from blow-out ports 12, 12a, 12b. |
