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A water supply pipe not less than 1/4 inch (6 mm) in diameter shall be taken from the flush supply of each bedpan washer on the discharge or fixture side of the vacuum breaker, shall be trapped to form not less than a 3-inch (75 mm) water seal, and shall be connected to the local vent stack on each floor. The water supply shall be installed so as to provide a supply of water to the local vent stack for cleansing and drain trap seal maintenance each time a bedpan washer is flushed.
The connection between sterilizer vent or exhaust openings and the sterilizer vent stack shall be designed and installed to drain to the funnel or basket-type waste fitting. In multiple installations, the sterilizer vent stack shall be drained separately to the lowest sterilizer funnel or basket-type waste fitting or receptor.
Sterilizer vent stack sizes shall comply with Section 18-29-713.11.1 through Section 18-29-713.11.4.
The minimum size of a sterilizer vent serving a bedpan steamer shall be 1 1/2 inches (38 mm) in diameter. Multiple installations shall be sized in accordance with Table 18-29-713.11.1.
Stack Size (inches) | Connection Size | ||
1 1/2" | 2" | ||
Stack Size (inches) | Connection Size | ||
1 1/2" | 2" | ||
1 1/2 a | 1 | or | 0 |
2 a | 2 | or | 1 |
2 b | 1 | or | 1 |
3 a | 4 | or | 2 |
3 b | 2 | or | 2 |
4 a | 8 | or | 4 |
4 b | 4 | or | 4 |
For SI: 1 inch = 25.4 mm.
a. Total of each size.
b. Combination of sizes.
The minimum size of a sterilizer vent stack shall be 2 inches (51 mm) in diameter where serving a utensil sterilizer and 1 1/2 inches (38 mm) in diameter where serving an instrument sterilizer. Combinations of boiling-type sterilizer vent connections shall be sized in accordance with Table 18-29-713.11.1.
Pressure sterilizer vent stacks shall be 2 1/2 inches (64 mm) minimum. Those serving combinations of pressure sterilizer exhaust connections shall be sized in accordance with Table 18-29-713.11.3.
Stack Size (inches) | Connection Size | |||
3/4" | 1" | 1 1/4" | 1 1/2" | |
Stack Size (inches) | Connection Size | |||
3/4" | 1" | 1 1/4" | 1 1/2" | |
1 1/2 a | 3 or | 2 or | 1 | – |
1 1/2 b | 2 and | 1 | – | – |
2 a | 6 or | 3 or | 2 or | 1 |
2 b | 3 and | 2 | – | – |
2 b | 2 and | 1 and | 1 | – |
2 b | 1 and | 1 and | – | 1 |
3 a | 15 or | 7 or | 5 or | 3 |
3 b | 1 and | 1 and 5 and | 2 and | 2 1 |
For SI: 1 inch = 25.4 mm.
a. Total of each size.
b. Combination of sizes.
The minimum diameter of a sterilizer vent stack serving an instrument washer sterilizer shall be 2 inches (50 mm). Not more than two sterilizers shall be installed on a 2-inch (50 mm) stack, and not more than four sterilizers shall be installed on a 3-inch (75 mm) stack.
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