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The PIV unit will be connected to a smoke detector/fire alarm and stop running in case of a fire. I will contact the fire officer and ask for advice. Thank you.

PIV manufacturer has sent me to the collar manufacturer. I seem to be running in circles. Your answer is actually very helpful. I thought if a fire occurred within the PIV unit, the PVC pipe would melt from the inside anyway and activate the collar immediately. The pipe leads to a communal...

Hello there! Could anyone tell me what is the unobstructed distance between a fire collar and another element? Planning to install a PIV unit, running a PVC pipe straight from the rear inlet to a fire-rated wall. I need to install a fire collar behind the unit, but I was wondering what's the...