(a) Smoke accumulators must be located overhead in each compartment. Where liable to physical damage, the accumulators and piping must be suitably protected.

(b) No spot on the overhead of a protected space may be more than 40 feet from an accumulator.

(c) Accumulators must not be located closer to the opening of a ventilator than three times the diameter or equivalent diameter of the opening.

[CGFR 65-50, 30 FR 16940, Dec. 30, 1965, as amended by USCG-2012-0196, 81 FR 48259, July 22, 2016]