Mechanical & Plumbing
September 24, 2014 - Siemens Building Technologies has added the KNX-capable RDF800KN model to its range of communications-enabled room thermostats, which it says offers numerous energy-efficiency functions. Boasting an intuitive operating concept, the touch functionality promises to make the device easy and convenient to use so that it is particularly suitable for applications in hotels and residential buildings. The unit supports a range of applications for fan coils, heating/cooling systems and heat pumps, while the room temperature is controlled either with the integrated temperature sensor or an external room or return air sensor. According to Siemens, the RDF800KN automatically selects the most energy-efficient settings, which could include demand-based air handling, individual room control, setpoint limits, timer programs and presence/absence detection.
September 10, 2014 - The NuTone EZFit bathroom ventilation fan is designed with clamp connections instead of screws for faster installation in retrofit construction. The unit installs roomside and attaches to the drywall rather than a joist or truss, eliminating the need to crawl into the attic, says NuTone, adding that EZLock tabs clamp the housing onto the drywall with just a screwdriver without the need of a mounting frame. According to the company, the fan delivers up to 50% more power than typical installed fans to eliminate foggy mirrors, moisture and odours faster than standard bath fans, and up to 70% quieter than typical installed fans.
August 26, 2014 - Dyson says its Airblade Tap hand dryer washes and dries hands without having to leave the sink, as infrared sensors pinpoint hand positions and release water from the tap stem. Once hands are wet and drying is requested, integrated circuitry computes the information and activates the Dyson digital motor V4, creating two high velocity sheets of air on the tap’s branches, describes the company. It adds that the hand dryer sends sheets unheated filtered air at 675kph towards hands, drying them in 14 seconds.
August 13, 2014 - Legend Power Systems says it has launched an electrical energy conservation product designed to address the North American condo and apartment tower market. According to Legend, Harmonizer saves energy by regulating voltage at the point where power enters a building, reducing energy usage by up to 8%. The product is best suited for apartment or condo buildings with 100+ suites per building, it continues, where the property manager is unable to directly replace older inefficient end use loads such as incandescent light bulbs found in tenant occupied spaces.
July 29, 2014 - Lennox has added ultra-high-efficiency models to its Energence rooftop line—promising efficiencies of up to 21.5 IEER and 13.9 EER—which it describes as the “most efficient, lightest and quietest rooftop units in its class”. Boasting energy-saving features such as the Advanced Cooling System and the DirectPlus blower system, the lineup exceeds ASHRAE 90.1 minimum standards by 92% and CEE Tier 1 and 2 efficiency minimum requirements. “Our customer feedback plays a significant role in the development of our products and these new units were designed to meet not only our customer’s most requested benefits, but industry leading results in the areas of energy efficiency, sound and weight, for comparable competitive units,” said Cindy Sparrow, vice president of product management and marketing.
July 15, 2014 - Enistic has introduced the first product in its new Essentials Range of energy-management products—the real-time online temperature logger and sensor measures the ambient temperature of chiller units or air conditioned offices. The unit can also be used for energy performance monitoring and building monitoring. Boasting one-minute refresh view, the plug-and-play temperature sensor is suitable for temperatures between -55C and 125C. As well, an alarm function detects below minimum and above maximum temperatures set by the users; alerts can be sent through email or SMS.
May 28, 2014 - Excel Dryer says its new Xleratoreco hand dryer—which uses “no heat” technology to dry hands in 15 seconds using 500 watts—is the most energy-efficient hand dryer on the planet. Drawing 4.5 amps or less, multiple Xleratoreco units can be installed on one circuit, which significantly reduces installation time and costs, says the company. Additionally, Xleratoreco reduces a facility’s carbon footprint, helping facilities qualify for several Leadership in Energy and Environmental Design (LEED) v4 Credits and Green Globes to achieve corporate or government sustainability goals, it adds.
May 28, 2014 - Broan-NuTone has introduced a humidity-sensing wall control (model 82W), which it says maximizes the performance of most Broan and NuTone ventilation fans by automatically detecting and controlling high levels of moisture. The updated control reacts faster than other models to provide the best air quality and comfort for users, says the company. Now, the wall control can sense a rapid rise in humidity levels and automatically turn on the fan until the level of humidity returns to a normal, healthy state. An LED light indicates when the fan is operating. The control automatically stops the fan after a user-adjustable time delay so it only operates when needed, which helps users conserve energy, adds Broan-NuTone.
May 15, 2014 - Dyson engineers say they have concentrated Dyson Airblade technology without compromising drying performance. Using the Dyson digital motor V4, the Airblade V hand dryer is 60% smaller than the original, yet claims to still dry hands quickly and efficiently in 12 seconds. According to the company, the hand dryer uses two sheets of 675kph air, angled at 115°, to separate hands and scrape off water like a windshield wiper. It also claims to dry 17 pairs of hands for the price of a single paper towel.
May 15, 2014 - Johnson Controls has released a series of pneumatic-to-digital thermostats, the WT-4000, which claims to efficiently convert older pneumatic room control systems and enable communication with newer digital building automation systems. Programmable occupancy scheduling and remote temperature monitoring are key energy-saving features of the series, says the company. The thermostats come in eight different configurations and offer Celsius and Fahrenheit displays.
April 23, 2014 - Schneider Electric has introduced its SE8000 series of room controllers, describing it as a solution that provides the distinctive advantage of integrating a thermostat/temperature sensor and programmable room controller in a single unit. According to Schneider, the series can scale across a facility to optimize the energy use of HVAC systems and help reduce operational costs. Full customization is achievable by selecting from five screen colours, two casings, and 10 textured fascias to find the perfect combination to complement the surrounding decor. In addition, application-specific models will be released in the coming months for fan coils, heat pumps, roof top and air handling units that are pre-programmed to maximize efficiency, with the option to easily modify configurations to meet unique environmental needs, says Schneider.
April 8, 2014 - Lennox has expanded its light commercial Raider rooftop unit line to include 7.5- to 12.5-ton models, adding to its existing offering of 3- to 5-ton units. Designed to be compatible with most replacement installations, Lennox says Raider units are built to fit the most popular curb sizes, virtually eliminating the need for an adaptor curb on many replacement jobs. Available in gas/electric and electric/electric models, 3- to 12.5-ton units offer efficiency levels of up to 13 SEER, 11.5 EER and 13.2 IEER. An optional MSAV supply fan claims to optimize energy efficiency by matching fan speed with compressor demand, while a field- or factory-installed BACnet option boasts seamless integration with building automation systems.
March 26, 2014 - Venmar Ventilation, a provider of indoor air quality products, has introduced a new line of air exchangers: Venmar AVS and vanEE. The 9-in thick design is best suited for in-suite ventilation in high-rise residential towers, notes the company, adding that the entire line of new Venmar air exchangers offer unmatched airflow rate of 115 cf per minute, ensuring effective ventilation. The units boast up to 67% heat recovery efficiency at 0° and fans that are 50% more efficient.
March 12, 2014 - Broan has introduced its ventilation fan/light with Soft Surround LED lighting technology, boasting comfortable widespread lighting that is available immediately upon operation without warm-up time. The unit features an 800 lumen LED light engine, a 9W LED light and 3000K colour temperature. With a 4-in. duct connector, the ventilation fan/light can be installed in tight ceiling areas with a minimum joist height of 2 in. x 6 in., says Broan, adding that the model is UL certified, allowing installation over bathtubs and showers when used with a GFCI circuit.
February 26, 2014 - Tamarack Technologies has announced the Perfect Balance integrated door return air pathway, designed to create a more comfortable indoor environment through proper room-to-room air flow while reducing the stress on heating and cooling systems. Made from ABS plastic, the unit meets Energy Star and R2000 standards and can be retrofitted into an interior door to help eliminate pressure imbalances, says the company. According to Tamarack, room-to-room pressure imbalances can lead to moisture problems and mould build-up, and higher energy costs.
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