46 CFR §95.16-50

1. (a)Simple, complete operating instructions must be conspicuously located at or near any release station and in the extinguishing agent cylinder storage room.
2. (b)On a system in which extinguishing agent cylinders are stored outside the protected space, operating instructions must also:
   1. (1)Include a schematic diagram of the system; and
   2. (2)Describe alternate methods of discharging the extinguishing agent into protected spaces should the manual releases or stop valve controls fail to operate.