To make multi-unit condensing tankless water heater installation easier and more flexible for commercial contractors, Rinnai America Corp. has introduced its Tankless Rack System (TRS).
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.
The CO2 transmitters can be used for regulating ventilation in living areas, offices, classrooms, cinemas, and hospitals, and for measuring CO2 pollution in garages, tunnels, and logistics facilities.
Rotronic’s new CP11 handheld instrument is an inexpensive meter that simultaneously measures and records CO2, humidity, and temperature. It also calculates the dew point and wet bulb temperature.
The new humidity and temperature HygroLog HL-20/21 data logger expands on the company’s HygroLog family of products. The HL-20/21 is suited to a number of applications including those in critical areas such as pharmaceutical clean rooms.
Rotronic’s new HygroFlex1 series is the latest development in inexpensive HVAC transmitters for relative humidity and temperature, says the company. It’s equipped with the Hygromer® IN-1 humidity sensor and two freely scalable analog voltage or current outputs.
Hydrocarbon Refrigerants – A Study Guide for Service Technicians from RSES has been developed to assist the refrigeration technician in understanding the requirements to safely maintain and service systems that utilize flammable refrigerants.
Photos from the 2013 ACCA Conference & IE3 Expo in Orlando, Fla.
Podcasts
Cade Clark, assistant vice president of government affairs for the Air-Conditioning, Heating & Refrigeration Institute (AHRI), gives a brief overview of the new version of the Shaheen-Portman bill, what AHRI thinks of the energy-efficiency legislation, and how it might affect the HVACR industry if it becomes law.
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