The Design Envelope IVS Twin Vertical in-line pump for commercial HVAC systems combines two variable-speed rotating assemblies in one shared casing. The twin-pump design is a variable-speed, duty/standby solution for any application that demands constant availability, energy savings, and a small footprint.
Robur’s absorption process combines the advantages of a condensing boiler and an electric heat pump into one unit. The air-to-water reversible heat pump supplies hot water up to 140°F or chilled water down to 38°F.
After reviewing basic design options, the next steps for potential geothermal designers are to challenge the common concerns and myths, study how different choices have different cost impacts, and be aware of the ways a good design can yield bad performance if the installation isn’t done well. Add the habit of turning a retrofit’s circumstances to your advantage, and this underground approach can rise above client expectations in short order.
Minimizing wear on HVAC equipment and maximizing system uptime is the VLT® HVAC Basic drive. It is a robust variable-speed drive solution that delivers highly reliable HVAC performance for basic fan and pump operations, the company said.
With a working pressure of 175 psi, the Viridian line of wet-rotor pumps with an ECM motor offers an 80 percent decrease in energy consumption compared to a standard commercial pump of the same size, says the company.
Instant water heaters, high-tech boilers, and steam solutions are just a few examples of wet heat technology. Here are a few products in that segment that might be of interest to the HVACR contractor.
HVAC contractors have many choices of hydronic heating equipment, and these are a few examples of how knowledge of wet heat technology can make the selling job a little easier.
Taco’s Viridian pump line makes its first appearance at the 2012 AHR Expo in Chicago. The wet-rotor pump with an ECM motor offers an 80 percent decrease in energy consumption compared to a standard commercial pump of the same size, the company says.
Software P-Library allows anyone to develop pump curves for any centrifugal pump. The program creates a file that can be used in the Pump-Flo selection and Pipe-Flo system design software. A pump that might not be available through the downloadable Pump-Flo catalogs can be graphed and saved as a digital file.
