Installation instructions 47 66kb download document tubular element heaters.
Electric duct heater installation.
Never operate a duct heater without airflow.
Listed below are some important items when installing an electric duct heater.
Warren heaters are engineered for reliability and safety and are specifically designed not to exceed safe operating temperatures.
Instruction manual 66 13kb download document.
A duct heater must be installed according to the installations instructions wiring diagram and labeling supplied with the heater.
These duct heaters are not intended for installation in series in the air.
Custom built electric duct heaters are safety tested and listed by underwriters laboratories ul and the canadian standards agency csa and meet national electric code nec requirements.
2 1 800 627 4499 accessory rh series electric duct heaters warning avertissement arclash and electric shock hazard all models of electric heaters as discussed in this manual.
Rh series electric duct heaters installation operation and maintenance manual.
The heater must always be interlocked with the fan.
Sufficient working space must be provided per paragraph 110 26 of the nec.