Last minute change order for a customer. The fire marshal is having him put in a fire alarm/sprinklers in his home. The sprinklers have been installed and now I learned they want me to wire for it. There is a flow switch outside and a bell that will be near it. When the flow switch is engaged the bell will ring. That is all good. Here is the part I'm confused with, the bell can't be heard at the other end of the house which is required. The marshal wants me to tie the bell into the smoke detector system. The smoke detectors are all new with 14-3 romex to each. How do I tie them into the bell? The issue I see is there is only 9 volts running on the red wire when they go off. The bell is 120 volts.

Waterflow switch: http://www.firebusters.com/downloads/potter.pdf

Bell: http://www.vikinggroupinc.com/literature/TDR-4039.pdf


I really appreciate any help.


Byron