| 摘要 |
PROBLEM TO BE SOLVED: To provide an air-conditioning system to pay consideration to penetration of water into an underfloor surface through a blowoff part and easy to close a ventilation opening, in the air-conditioning system utilizing an underfloor space. SOLUTION: A drain pan 7 is installed below a supply grill 6 to receive water. Water gathering in the drain pan 7 is discharged by removing the supply grill 6 from the indoor space side and taking out the drain pan 7. Further, by changing the state of the drain pan 7 from the indoor space side, the ventilation opening is closed. Thus, water can be received and water is prevented from spreading over an underfloor surface. Discharge of gathering water and cleaning are facilitated. Moreover, the ventilation opening can be easily closed. By using a drain pan 2 having two functions, the air-conditioning system is provided at a low cost. |
