Tech Update

Commercial Unitary: Chillers, VRF Systems, Applied Equipment Residential AC: Ducted Systems, Heat Pumps, Geothermal, Hybrid Systems


LL series chillers and outdoor mechanical rooms feature R-134A variable capacity oil-free magnetic bearing centrifugal compressors. The compressors have up to 19.4 EER and as low as 0.41 kW/ton IPLV for the compressors only, or up to 17.5 EER and as low as 0.49 kW/ton IPLV for the complete chiller system, - including compressors, condenser pumps, and evaporative-cooled condenser fans.
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Mitsubishi Electric
Mitsubishi Electric Cooling & Heating has made significant updates to its commercial R2-series outdoor units, offering end users increased heating capacities, energy efficiency and the most advanced VRF technology available. The R2-series is available in 208/230 volt, 3-phase or 460 volt, 3-phase units. It has an outdoor temperature range of -4F to 60F when heating and 23F to 115F when cooling.
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Modine Manufacturing Company introduces its new 15 to 30 ton commercial packaged ventilation system, the Atherion. All units are designed to meet ASHRAE 189.1 and 62.1 standards for efficiency and indoor air quality and feature optional high-efficiency gas heating. The Atherion has been engineered for ease of installation and maintenance, energy efficiency, and durability to provide the market with a state-of-the-art fresh air solution for dehumidification and ventilation.
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The Samsung DVM Plus III system has been developed to enhance comfort, while reducing energy consumption in commercial applications. It uses variable refrigerant flow technology to allow over 60 indoor units to be connected to a maximum of three outdoor units ganged together.
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Unison Comfort Technologies
Valent Air Management Systems has expanded its available air-cooled refrigeration packages to include an air-source heat pump (ASHP) option for effective operation down to 17F ambient temperatures. Each ASHP unit is equipped with DefrostPLUS, an advanced defrost sequence that monitors ambient temperature and relative humidity to reduce unnecessary defrost cycles.
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Johnson Controls, Inc. has increased the capacity of its York model YVAA air-cooled, variable-speed, screw chiller to 350 tons.

The YVAA chiller features the industry’s highest EER at both full-load design and off-design conditions for efficient operation at all operating conditions. On replacement projects, YVAA energy performance can exceed that of older chillers by as much as 50%, while performance on new projects can exceed competitors’ chillers by up to 25%, sources say
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The Amana AMVM96 modulating gas furnace, with its self-calibrating, modulating gas valve and variable-speed blower, delivers precise heating performance in the harshest of winters, circulating air quietly and cost-effectively throughout the home, offering up to 96% AFUE.
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American Standard
With four stages of heating and two fuel choices, the Platinum ZM Hybrid comfort system (also known as the Heritage Hybrid™ comfort system) from American Standard Heating & Air Conditioning provides homeowners with comfort and efficiency. Its variable-speed motor and exclusive Comfort-R technology allow the all-in-one packaged system to offer greater humidity control and reduced temperature variances.
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Armstrong Air
Armstrong Air has completed a series of upgrades to its line of heat pumps.

Topping the list of enhancements is dual fuel compatibility, which now extends to the entire Armstrong Air heat pump line. Dealers will find more dual fuel matches at every capacity, including seven new matches for both the 13 and 14 SEER models. Plus, each unit is compatible with a variety of other existing components, such as wall mount, soffit and high velocity air handlers.
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Bosch Thermotechnology North America announces that the Bosch TA Series geothermal heat pump has been awarded the Energy Star Most Efficient designation for 2011. The Bosch TA Series offers flexible installation applications including vertical, horizontal, counter flow and split system configurations from two to six-tons.
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The Broan iHybrid™ packaged system combines the electric heating and cooling convenience of a heat pump with a gas-heat furnace. The iHybrid achieves up to 15 SEER, 80% AFUE and 8.0 HSPF.

The dual-fuel unit operates at lower capacity during mild temperatures and at full capacity during harsher ones, reducing electrical consumption by almost 80% over conventional products.
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The Carrier® Infinity® 20 heat pump with Greenspeed™ intelligence was recently voted no. 1 in the category of forced-air cooling equipment at HVAC Comfortech 2011, a heating and cooling industry event.

The Carrier Infinity heat pump with Greenspeed intelligence has an HSPF efficiency rating up to 13.
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ClimateMaster introduces the Tranquility 22 Digital Series. This product incorporates high-end features like a two-stage compressor, EnergyStar™ tier 3 efficiency, variable speed fan, communicating digital controls and true “plug-and-play” functionality.

Tranquility 22 Digital systems are available in vertical and horizontal configuration in capacities 024k, 030k, 036k, 042k, 048k, and 060k Btuh.
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The new Goodman® brand ductless MS 20 mini-splits with inverter technology bring high-efficiency heating and cooling to challenging spaces.

With up to 20 SEER performance, the Goodman mini-splits are as effective as residential heat pumps or split AC units, and are economical to install. A single 3½-in. wall opening connects the outdoor and indoor units.
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The Maytag 22-SEER PSH4BI iQ Drive heat pump received the Energy Star Most Efficient designation in 2011 for 2, 3 and 4 ton capacities.

The Maytag iQ Drive heat pump uses inverter-driven rotary technology to achieve high efficiency levels. The unit can modulate anywhere from 40 to 118% of capacity, instantly adjusting to exactly offset the demands on the home.
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Mitsubishi Electric
Mitsubishi Electric Cooling & Heating adds the MUZ-FE09 outdoor unit to its Hyper-Heat (H2i) product line of M-Series Energy Star-rated systems. The units are Energy Star and tax credit qualified. They provide up to 26 SEER and 10 HSPF rated Btuh capacities of 9,000. These systems provide heating down to -13F outdoor ambient temperature and produce 100% capacity at ambient temperatures as low as 5F.
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The T2GX / T1GX is Trane’s most efficient packaged geothermal solution, offering up to 29.4 EER efficiency and available in single and two-stage. The variable speed blower motor offers up to 12 airflow selections, to keep comfort even and efficient. Optional heating for water supply is also available.
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The Versatec Base from WaterFurnace International, Inc. combines high efficiency and a list of value-added features in a compact water source heat pump for water loop and geothermal applications. The Versatec Base model exceeds ASHRAE 90.1 efficiencies, while using R410A refrigerant. The heat pump is available in a wide selection of capacities (018-070 MBtuh output).
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An addition to its line of York Affinity humidifiers, the Affinity Large Bypass WaterSaver humidifier uses a patented water delivery system that includes a small float chamber, electronic water level sensors and a wicking water panel. The float chamber in the Model 4000 eliminates the need for a reservoir and the water panel wicks water from the bottom of the panel toward the top in a sponge-like action. This wicking process allows for 100% of the water in the unit to be utilized in the evaporation process, with virtually no standing water.
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