HD110301-1 Rev2
Page 4 of 23
SYSTEM OVERVIEW
Drexan HeatTracer MultiTrace self-regulating cable is designed for freeze protection of above
ground and buried supply pipes, fire standpipes, branch lines and branch lines containing sprinklers
when run in areas potentially exposed to freezing temperatures.
Drexan offers 4 MultiTrace nominal cable power output options for fire sprinkler systems: 3W, 5W,
8W and 10W per foot
1
for applications using 100-130V and 208-277V power. Selection of the
correct power output for a given line size will ensure sprinkler systems do not overheat and that
electrical energy is efficiently used, while providing the required, reliable freeze protection.
A correctly designed and specified system will comprise the following:
Heating cable correctly selected for the line size at design minimum ambient temperatures
Power connections, tees and end seals based on piping configuration
Monitoring and control system
Power distribution panels complete with appropriate ground fault equipment protection
Accessories including attachment tapes and warning labels
Tools necessary for a complete installation and commissioning tests
Approvals
Drexan HeatTracer MultiTrace is CSA / UL (CUS) certified for use on fire suppression systems in North
America. The system covered in this manual includes supply lines, stand pipes, branch lines and
sprinkler heads.
1
at 50 degrees F