| 摘要 |
PROBLEM TO BE SOLVED: To facilitate attaching and detaching of a screw in a maintenance work of a fan coil unit by integrating a fan, and detachably mounting the fan and a coil casing with specific clamping screws. SOLUTION: A motor and a pair of fans are contained in a fan 18, and coupled to a coil casing 14 at a center of a body by right and left and upper and lower clamping screws 26. Two holes of upper side of four holes perforated at the side of the fan 18 to pass the screws 26 are formed with a through hole 30 of a potbellied shape connected with a small-diameter hole 31 and a large- diameter hole 32. The inner diameter of the hole 31 of the hole 30 is, for example, 5 mm smaller than a maximum diameter of 8 mm of a head of the screw 26, and the inner diameter of the hole 32 is larger than the maximum diameter of 8 mm of the head of the screw. A minimum width of a neck 33 is 4.2 mm larger than screw threads (about 4 mm) of the screw 26. |
