If you need to replace your HVAC rooftop unit, Carrier’s quieter variable-speed units offer precise comfort control

by Brianna Crandall — October 16, 2020 — Global HVAC provider Carrier recently announced that its WeatherExpert line of rooftop units (RTUs) now includes the variable-speed 48JC gas/electric and 50JC electric/electric models designed to vary cooling capacity down to 25% and up to 105% of normal capacity. The units are said to boast impressive SEER ratings up to 20.0 and feature innovative EcoBlue Technology.

The 48/50 JC units are the products of extensive research and development designed to harness the power of variable-speed technology in order to achieve the features and benefits of the WeatherExpert line. They are available in three phase voltage and come in three-, four- and five-ton sizes. In addition, these new models feature a smaller rooftop footprint and lighter weight for this type of equipment, furthering an ideal fit for both new construction and replacement jobs.

Carrier HVAC rooftop unit

The 48JC and 50JC variable-speed rooftop units feature a simpler, more compact design and quieter operation, providing an efficient HVAC for replacement or new construction. Image courtesy Carrier

Most notable of EcoBlue Technology’s many features is the exclusive beltless direct-drive vane axial fan system — touted as an industry first for rooftop units when introduced in 2018. This patented technology replaces traditional belts, pulleys, and forward curve fans with a simpler, more compact design, all with 75% fewer moving parts. The outdoor fan system’s high-density composite blade fan is also said to be an exclusive design. Both fans are dynamically balanced for quieter operation.

Other technological advances that differentiate these units include the intelligent, intuitive and integrated SystemVu controls and coil technology that uses proven round tube, plate fin designs, increased factory options, and a toolless filter access door.

J.B. Spillane, managing director, North America Light Commercial HVAC, Carrier, stated:

We are excited to announce the release of the efficient variable-speed WeatherExpert line that offers customers precise comfort control in a building. Coupled with our EcoBlue Technology and impressive weight advantages, the 48/50 JC models will provide great value for building owners seeking an efficient HVAC solution in replacement and new construction applications.

The WeatherExpert 48/50 JC units also feature an optional patented Humidi-MiZer Adaptive Dehumidification system that provides additional dehumidification control and standard  SystemVu controls, which brings the benefits of a large text display; quick LED status; smarter diagnostics through ongoing, real-time information; and built-in i-Vu, CCN and BACnet capabilities.

To learn more about the 48JC gas/electric and 50JC electric/electric models and other Carrier Weather Series Rooftop Units with EcoBlue Technology, visit the company’s website.

Carrier, a global provider of high-technology heating, air-conditioning and refrigeration solutions, is a part of Carrier Global Corporation, a global provider of heating, ventilating and air-conditioning (HVAC), refrigeration, fire, security and building automation technologies. Founded by the inventor of modern air-conditioning, Carrier provides sustainable solutions, integrating energy-efficient products, building controls and energy services for residential, commercial, retail, transport and food service customers.