This is a follow on to my earlier post about garage heat detector.
I’m looking for advice on where to place the System Sensor 5604 in my garage. Below is a rough (not perfect measurements but close) diagram of my garage layout.
The tricky thing here is the ceiling has two different heights. Should it go on the lower or higher ceiling? I’m guessing higher is better?
Note we never park cars in here - but we have the gas appliances, electrical panel, work bench, and lawn equipment storage all happening here - all potential fire sources or accelerants.
The A and B on the diagram are the two locations I was thinking - but open to ideas. Is installing two massive overkill for such a small space?
Which location would you advise?
(I’ll also say the lower ceiling area is 1000% easier to access when I need to change a battery in the PowerG sensor! (primarily because of other shelving/items in the garage)
I would recommend at least two in the areas you had marked.
From reading NFPA72, different ceiling height should be considered their own areas. Following their guidelines, you would need a third one located in the 10 foot ceiling area where the furnace and water heater are located.
Thanks Vidail,
Actually, I was wrong in my diagram! The ceiling above/near the furnace is actually at that same 14ft height.
So in that case, I’m thinking two would work well. One centered in the 10ft ceiling area and a second centered in the 14ft area. This would seem to align with your recommendation for two as well.
I think that is what I’ll proceed with at this point. (Today there is nothing so this has to be better!) Thanks again.
I’m finally getting around to setting this up. I’m following Ryan’s directions on using a PG9945, and I’m not getting it to work correctly.
I have a System Sensor 5604.
It seems that in its default state, the connections on the 5604 are open (infinite resistance). However the directions say to setup the 5604 as a Heat sensor, Aux Input, set to End of Line.
What happens is it is always in Alarm - where it always thinks there is a heat/fire condition. I think this might need a ‘normally open’ type Aux connection, however once you select Heat as the sensor type, you lose the normally open and normally closed options on the IQ 4.
Any suggestions? Do I need a resistor in this circuit somewhere or am I missing something?
I think I figured it out. Resistor across the two terminals on the 5604 seemed to do the trick. Thinking about it more - it was end of line and normally open circuit, which would always need a resistor in that manner. I might need more coffee.
Anyway - if you could verify that is correct before I install, I’d appreciate it.
Yes, the PG9945 should learn in as normally open EOL and does require the end of line resistor that is provided with the sensor. This has changed on the latest panel update as before it was only programmed as normally open and you wouldn’t need the end of line on the heat.
