Tech Update

June 1, 2012
Commercial Refrigeration: Recycling Equipment, Display Cases, Ice Machines, Coolers, Freezers, Controls, Compressors
Residential Air Conditioning: Non-ducted Air Conditioning, Heat Pumps


Bitzer’s newest series of reciprocating compressors has been optimized for use with R134A. According to Bitzer sources, the Ecoline series increases energy efficiency up to 20% compared to traditional R404A or R22 medium temperature systems, extends application limits toward lower condensing temperatures, decreases the system’s carbon footprint, and is ideal for variable speed operation up to 70 Hz with a standard motor. Ecoline compressors are available in 6 - 50 HP.

The ERC generation of parametric controllers are designed to increase energy efficiency and reduce production costs. The ERC refrigeration controller offers:

  • steady operation in harsh environments (triple moisture protection)
  • voltage protection algorithms for trouble free compressor operation in all climate conditions
  • special algorithms for optimization under poor power supply conditions.
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Emerson Climate Technologies is releasing a new version of its E2 supervisory controller for retail facilities. The new version of the E2 offers open BACnet communication protocol, enabling retailers to interface with more devices. In addition, the new version of the E2 offers native integration with Emerson’s multi-zone infrared refrigerant leak detection device.

The E2 supervisory controller now comes equipped with 128 MB of RAM and a 500 MHz processor, providing retailers with faster application access and greater data logging capacity. A widened screen displays a system status bar containing a convenient breakdown of system advisories, network connectivity status and system configuration. The addition of a USB port enables system backup to preserve set points and other configurations.
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Hoshizaki America, Inc.
Hoshizaki America introduces new preparation refrigerators. The refrigerators offer quality performance while offering savings in operation costs. Features include:

  • stainless steel design
  • front breathing air flow accommodates tight spaces
  • advanced air flow system distributes air evenly, protecting product by maintaining safe temperatures
  • two-year parts and labor warranty.
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Master-Bilt Refrigeration Solutions announces the latest development in its line of merchandising display equipment - bottom mount open air (BMOA) display merchandisers. This new series of well-lit and open “grab and go” merchandisers is designed to increase merchandising space with 17-in. deep shelving allowing for increased pack-out and product visibility.

BMOA models are equipped with three tiers of LED-lighted, adjustable, two position shelves with price tag molding. These merchandisers contain interior and exterior textured finish and feature an electronically controlled monitoring system that allows the user to monitor defrost functions from a front panel interface. Additionally, the system provides an audible and visible alarm and eliminates room thermostat, defrost terminations/fan delay control, defrost timer and digital thermometer, or other temperature indicator.
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Introduced in 2011, the Infinity heat pump with Greenspeed intelligence has an HSPF efficiency rating up to 13. The Infinity heat pump delivers up to 69% higher heating efficiency in the three-ton size.

When installed as part of a complete Infinity system, the new heat pump adjusts its output within a range of 40 to 100% of capacity to match the heating or cooling requirements of a home. This innovation is made possible by pairing the superior communication ability of Carrier Greenspeed intelligence with a Copeland Scroll variable -speed compressor from Emerson Climate Technologies, optimized specifically for this heat pump.
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Johnson Controls, has added 1.5-ton condensing units to the Coleman LX and Comforteer series of mid-efficiency 14.5 SEER air conditioners and heat pumps.

To boost energy efficiency and offer a compact footprint, both 1.5-ton models include a coil constructed of aluminum MicroChannel tubing and enhanced aluminum fins. The coils are protected from damage by a sturdy polymer mesh applied between the coil face and a coated steel guard.

Other features include:

  • compressors protected against high temperature and pressure
  • isolated compressor mounts to help reduce operating noise
  • permanently lubricated motor bearings requiring no annual maintenance.
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Daikin’s LV series, single split, heat pump systems feature energy efficiency up to SEER 24.5 in rated capacities from 9,000 to 21,500 BTUH. Outdoor units are equipped with an inverter variable speed compressor and are paired with quiet, compact indoor units. According to company sources, features include an intelligent eye motion-sensing function for energy consumption savings up to 30%, and comfort control features such as a programmable weekly timer for customizable daily comfort and vertical and horizontal auto-swing louvers for even air distribution. Units purchased through authorized Daikin 3D dealers are eligible for a 10-year compressor and 7-year parts warranty.
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Goodman brand ductless MS 20 mini-splits uses 180 degree sine wave inverter technology to bring high-efficiency heating and cooling to challenging spaces.

Goodman MS heat pumps offer up to 20 SEER performance, a “follow-me” remote control thermostat, turbo settings for fast heating and cooling, antibacterial fan, odor trapping carbon filter, easy-to-read LCD display, sleep mode setting, auto-restart temperature setting, bi-directional airflow setting, and easy-clean indoor unit panels. A single 3½-in. wall opening connects the outdoor and indoor units.

The brushless, twin rotary compressor in the Mini-Split uses a double cam design to increase mechanical stability and performance, with less vibration and noise, compared to conventional rotary compressors.
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Johnson Controls expands its Luxaire line of LX and Climasure series of 14.5 SEER mid-efficiency air conditioners and heat pumps with 1.5-ton condensing units.

The design of the new 1.5-ton models reduces installation and maintenance costs with easy power and control wiring connections. Fully exposed refrigerant connections and a single panel covering the electrical controls enable easy access. Also, permanently lubricated motor bearings require no annual maintenance.

The new units also feature a coil of aluminum MicroChannel tubing and enhanced aluminum fins that increase energy efficiency and offer a compact footprint. A sturdy polymer mesh between the coil face and a coated-steel guard protect the coils from damage.
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Mitsubishi Electric introduces new systems that are Energy Star-rated and qualify for federal tax credits.

The MSZ-GE09NA and MSZ-GE12NA systems with wall-mounted indoor units feature some of the highest SEER and HSPF ratings Mitsubishi Electric has ever offered. According to Mitsubishi sources, this improved performance helps home owners save more than 40% on energy usage compared to standard window units. The MSZ-GE systems offer:

  • single-zone cooling-only and heat pump models in 9,000, 12,000, 15,000, and 18,000 BTU/h capacities
  • all heat pump indoor units are also compatible with the MXZ-B series multi-zone system
  • high efficiencies of up to 20.5 SEER.
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Quietside Corporation introduces its bacteria eliminating Samsung Vivace mini split air conditioner. Each Vivace indoor unit has a built in Micro Plasma Ion zone which improves the indoor air quality by eliminating biological bacteria, molds, and allergy causing agents. The Samsung Vivace also uses various filters in a multi-step air purifying health care system to remove virtually all elements that are harmful to the body. Samsung uses Silver Nano coating on both the filters and the evaporator to trap and remove dust particles as well as to exterminate fungi and unpleasant odors.

The Samsung Vivace is has 3 sizes in 12, 18, and 24,000 BTUH that can fit most residential applications.
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WaterFurnace International, Inc. introduces the 5 Series, an upgrade to the popular Envision product line that delivers whole-home comfort at efficiencies.

The 5 series 500A11 combines forced air heating and air conditioning and generates a portion of a home’s hot water, all from a single unit. Available in nine single-speed and six dual-capacity sizes from 1 to 6 tons, the geothermal heat pump system uses R-410A refrigerant and features a variety of advanced technology and components. Copeland Scroll compressors are mounted on double isolation plates for extra quiet operation. Dual capacity units include Scroll UltraTech compressors for added efficiency and reliability.
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Johnson Controls has expanded its York LX and Latitude series of mid-efficiency air conditioners and heat pumps with the addition of 14.5 SEER condensing units.

The 1.5-ton models feature the same compact footprint and height as 2-ton models in the series. When used with York’s variable-speed indoor products, the air conditioners can achieve efficiency levels that qualify them for the Energy Star designation for a federal tax credit.

Upward airflow carries the normal operating noise of the models away from the living area and a rigid top panel reduces any motor sound in the units. In addition, isolated compressor mounts minimize compressor-operating sounds and, in the case of the LX model, a louvered steel coil guard, swept-wing fan blade and compressor blanket ensure quiet operation.
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