Tjernlund Rooftop Chimney Fans Solve Draft and Exhaust Problems
WHITE BEAR LAKE, MN — Tjernlund Products, Inc. offers Rooftop Chimney Fans that solve draft and exhaust problems: RT-Series Inducers and RT-Series Fans.
RT-Series Inducers are available with an optional Constant Operating Pressure Control (COP). The COP Control delivers precise draft or exhaust by modulating fan speed to maintain a constant negative pressure within a vent or exhaust system as draft requirements or exhaust loads change. Common vented boilers, water heaters and clothes dryers operate more efficiently, rooftop chase exhaust fans modulate to actual demand saving make-up air and reducing motor power consumption.
Chimney fans with Draft COP Controls are designed for non-condensing modulating gas and oil-fired heaters and multiple heaters tied into a common vent. The Draft COP incorporates a UC1 universal burner interlock. The COP Controller has soft start and soft transition between speed that translates into quick and extremely smooth reaction to firing rate changes.
Applications for Exhaust COP Control equipped fans include multiple clothes dryers in a common vent or controlling pressure of an exhaust chase serving multiple floors.
The RT-Series Fans have a clamshell design — separate base plate and fan assembly are hinged — to facilitate installation. During inspection or chimney cleaning the fan assembly can be tilted away from the base plate for complete access to the chimney, chase or duct.
Other unique features include a patented auxiliary cooling system to protect the fan motor from excessive heat - rated for 1000º F (538º C), or as well as backward inclined, stainless steel fan blades that repel soot or lint build-up.
RT Series Fans and COP Controllers are ETL-Listed and available in two capacity ranges: RT750 models from 250 to 750 CFM and RT1500 from 750 to 1500 CFM.