Sufficient working space must be provided per paragraph 110 26 of the nec.
Electric duct heater installation.
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.
Installation instructions 47 66kb download document tubular element heaters.
Never operate a duct heater without airflow.
Duct elbows or turns must be located at least 4 from the inlet of the heater and 2 from the outlet of the heater.
Warren technology produces custom built electric duct heaters for installation in commercial hvac systems.
Listed below are some important items when installing an electric duct heater.
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.
Installation instructions 47 66kb download document thermo air.
Warren heaters are engineered for reliability and safety and are specifically designed not to exceed safe operating temperatures.