| 摘要 |
PROBLEM TO BE SOLVED: To reduce an installation floor area without decreasing heat exchange efficiency. SOLUTION: An air intake partition 105 is demarcated in such a manner that it is projecting over a dustproof partition 103 in a lower part on the front face side of a vertical partition board 5. In side boards 2 of a case 1, side face air intake holes 2A are formed at the place corresponding to the air intake partition 105. Between the air intake partition 105 and a ventilation partition 104, outside air intake ports 5C are formed and an outside air fan 54 is disposed. The outside air taken in through the side face air intake holes 2A is introduced to a lower end of the ventilation partition 104 via the air intake partition 105 and the outside air intake ports 5C. |
