K-Tag K523

HVAC – Suspended Unit Heaters

This regulation sets physical safety requirements for suspended unit heaters in healthcare facilities, specifying that they must not be placed in egress paths or patient rooms, must be mounted high enough to be inaccessible to occupants, and must include automatic safety shutoffs for excessive temperature or ignition failure. It references Life Safety Code sections 18.5.2.3(1) and 19.5.2.3(1), which apply to new and existing healthcare occupancies.

K523 HVAC – Suspended Unit Heaters 
Suspended unit heaters are permitted provided the following are met: 
 Not located in means of egress or in patient rooms.
 Located high enough to be out of reach of people in the area.
 Has a safety feature to stop fuel and shut down equipment if there is
excessive temperature or ignition failure.
18.5.2.3(1), 19.5.2.3(1)