Kidde Fire Systems Surge Protector P/N 81-CO2MAN-001 Manuale Utente

September 2013

B-12

P/N 81-CO2MAN-001

When used, odorizers should be located immediately downstream of each selector valve. For 

systems protecting a single hazard, a single odorizer can be located immediately downstream 

of the discharge manifold.
Note: An odorizer assembly, Part Nos. 81-897637-000 and 10030080, shall be installed 

upstream of the lock-out valve. In the event a safety outlet ruptures in a locked-out 

system, the scent from the odorizer will provide a warning that carbon dioxide has 

vented into the area by the safety outlet.

Odorizers must be attached to the discharge piping in the upright position using a 1-1/2 inch 

standard galvanized close nipple. When a welded connection is required, use a 1-1/2 inch 

standard pipe, 1-3/4 inches long, threaded on one end. Install odorizer assembly after welding.
1. Attach the odorizer assembly to the piping. 
2. Remove the union nut and cylinder body from the odorizer assembly, leaving just the union 

headpiece attached to the piping. 

3. Use a small pick or slotted screwdriver to remove the spiral retaining ring and the circular 

screen. 

4. Carefully insert the odorizing cartridge into the cylinder body. This is most easily done by 

holding the cylinder body on its side. The narrow tip end of the odorizing cartridge should 

go into the cylinder body first. DO NOT drop the odorizing cartridge into the cylinder body, 

as this will most likely break the odorizing cartridge. 

5. Replace the screen and secure with the spiral retaining ring. Make sure the o-ring is still in 

its groove before placing the cylinder body back onto the union head piece. A small amount 

of o-ring lubricant can be used to help keep the o-ring in place. 

6. Thread the union nut back onto the odorizer assembly and tighten the assembly.

Figure B-11.  Odorizer Installation