| 摘要 |
A fan coil unit 13 is mounted in an underfloor plenum with its intake 14 flush with the floor. The unit 13 feeds fan air terminals 11 and 12 each of which has an aperture 26 which vents air into the plenum space when the fan of the relevant unit is not running and through which air may be drawn from the plenum space when the unit 13 is not operating.
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