ryant35
Member
- Location
- Cypress, CA
We have approved plans for a manual fire alarm system with notification throughout in a restaurant, A-3 occupancy.
The plans show connections to duct smoke detectors provided by the HVAC contractor & fire alarm relays for HVAC shutdown.
Today we learned that the HVAC units are ductless split system with heat pumps on the roof. The ductless system consists of a wall mounted fan coil that looks similar to a hotel wall unit and is over 2,000cfm.
Obviously we cannot install a duct smoke detector, and the only other exceptions under 2010 California Mechanical Code are total coverage area smoke detection or "Automatic Shutoff is not required when all occupied rooms served... have direct exit to the exterior and travel distance does not exceed 100 feet."
I know this is mostly a mechanical issue but we need to figure out a solution, has anyone run into these units in a commercial application before?
The plans show connections to duct smoke detectors provided by the HVAC contractor & fire alarm relays for HVAC shutdown.
Today we learned that the HVAC units are ductless split system with heat pumps on the roof. The ductless system consists of a wall mounted fan coil that looks similar to a hotel wall unit and is over 2,000cfm.
Obviously we cannot install a duct smoke detector, and the only other exceptions under 2010 California Mechanical Code are total coverage area smoke detection or "Automatic Shutoff is not required when all occupied rooms served... have direct exit to the exterior and travel distance does not exceed 100 feet."
I know this is mostly a mechanical issue but we need to figure out a solution, has anyone run into these units in a commercial application before?