The CoolMaster Gateway is a versatile bridge device that interfaces VRV/VRF air conditioning systems via RS232 or USB with devices like home PCs, embedded PCs, home automation controllers, and building management systems with the purpose of easily monitoring and controlling essential air conditioning parameters.

The Comfortmaker® Observer™ touch screen communicating wall control, compatible with all Comfortmaker communicating equipment, is designed for easier service and installation. The wall control features a full-color touch screen display in a compact design.

Manual Zr is the new ANSI-recognized standard for residential zoning. Its development was spearheaded by the Air Conditioning Contractors of America (ACCA). As the newest manual in the ACCA library, it is the result of combined efforts of original equipment manufacturers, zoning equipment producers, and HVAC contractors.

The Add-A-Wire™ thermostat accessory allows for the easy addition of extra wiring to virtually any 24-V thermostat in applications where additional wiring otherwise cannot be added. According to the manufacturer, the accessory is easy to install; allows five-wire thermostats to work with only four wires; and more.

A new family of large display thermostats has been added to the company’s line. The thermostats’ SpeedBar® multifunction button simplifies setup and operation. They offer ±1°F operating differential and ±1° static temperature accuracy.

A new family of large display thermostats has been added to the company’s line. The thermostats’ SpeedBar® multifunction button simplifies setup and operation. They offer ±1°F operating differential and ±1° static temperature accuracy. The thermostats control to Energy Aware® high performance standards.

The Home Comfort Control system utilizes a touch-screen interface, which connects to an equipment control module with standard three-wire connection. It eliminates the need for separate controls on humidifiers, dehumidifiers, ventilation, and temperature control systems.

Homeowners are being very careful about making investments in home energy savings. According to a recent survey, they are demanding significant energy cost savings to justify any investments of time and money required to install highly efficient HVAC systems, and they have grown more skeptical about promises of a quick payback.

The Emerson Blue™ Wireless Easy Install™ thermostat system is ideal for residential applications where pulling any wire would be difficult or cost prohibitive, said the company. The thermostat system is compatible with most conventional and heat pump systems that are single- or multi-stage.

The future of bypass ducts in zoned California heating and cooling systems appears very bleak. The California Energy Commission (CEC) recently proposed a code change that would prohibit the use of bypass ducts in zoned heating and cooling systems, and eliminate existing Title 24 zonal performance compliance credits.