HD110301-1 Rev2
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Sprinkler Standpipes
MultiTrace is designed to maintain fire suppression system standpipes at 40°F/4°C in areas subject
to freezing.
FIG. 4 – STANDARD SPRINKLER STANDPIPE – Heating System Layout
Application Requirements
The system complies with Drexan HeatTracer design and installation requirements for freeze
protection of sprinkler system piping given the following conditions are met:
Schedule 5, 10, 20 or 40 steel sprinkler standpipe up to and including 20” diameter is used
UL listed fiberglass or closed cell flame-retardant insulation with weatherproof cladding is
used
The system is controlled by a Controller with integrated ground fault protection with alarm
contacts connected to a fire control panel
Control valve may be traced but requires removable insulation to allow inspection, and
requires a dedicated controller with RTD mounted on valve body and alarm contact for low
temperature alarm connected to a fire control panel
Heating cable is installed per manufacturer’s instructions with approved connection kits.
Approvals
CSA / UL (CUS) certified for non-hazardous locations.
