Hi&&*R? From Alabama?

Was It in your scope, specs,or thrust upon you?
Typicaly,The Suppresion guys will tell you nothing until they need it (I know, I used to be one . (still am kinda))

#1) This would depend on the size of the hood. Typicaly, Provide a shunt-trip for the gas and power,leaving the exhaust runing.

#2) RANT #2: I need copies of ALL prints and specifications - before the work is done.

----Good luck with this!!!----

Anyway, the big day comes. I've cobbled the hood system to the HVAC, so that tripping the hood kills the HVAC that brings fresh air in. Tying the HVAC into the hood so that it operates whenever the exhaust fan operates is a bit of a problem; I have a control conflict. That the thermostat is in another room doesn't help.

--Control power to the contact for the EF first,Then the relay for the shut down, then to T-stat and make up air.---

Minutes before the inspection, the hood guy comes in, and hangs a bell on the unit - a bell that I need to wire. Naturally, there are NO instructions specifying WHEN the bell is supposed to ring.

--On Discharge--- thru the normaly open in the unit.---
but, without direction, don't assume.

The hood guy also gives me a spiel as to how much better, more code conscious, more competent, etc., his firm is than the competition. He also implies that I have never done any of these systems. His sermon is full of 'code say this' and 'code says that', with a sprinkling of 'local amendments' thrown in.
I ask: What code are you referring to? He not only lacks a copy, he does not even know the name. He does assert something erroneous about the NEC - I offer to get my copy from the truck. He declines my offer .... and the AHJ arrives.

------Most in this feild are one dimensional! Most, not all,Consider the source. I know. They know what they know and... thats about it.
Most are licensed thru the fire marshal and have little to no electrical experience. The CO. I worked for... I was the ONLY journeyman, and only 2 "D" licenses!!!! 1 was a supervisor who was Grand fatherd in!!!!! (30 field guys)

Trained Monkeys comes to mind. But very good at 1 (one) thing.------


Naturally, we fail. We're not ready. Hood guy tells the GC there will be a charge for his return visit. I ask the inspector what code they're using - I'm getting tired of vague generalities about how the system should perform. Especially since the hood guy has made an assertion that the system needs to do "X".
The AHJ does not know the name of the code. He knows not where / how to get a copy. He is unaware of any local amendments.

----Wow, Imagine that!!! Here the fire marshals do all the fire related inspections. And They (most) ARE VERY SHARP!!!
I like that, you can have a good stimulating intelligent conversation.-----

Good luck Reno.

Good luck with this!!!