Catalog 256-13 Rebel™ Commercial Packaged Rooftop Systems Heating & Cooling Models DPS 003 – 028 3 to 28 Tons R-410A Refrigerant Energy Recovery Wheel

Total Page:16

File Type:pdf, Size:1020Kb

Catalog 256-13 Rebel™ Commercial Packaged Rooftop Systems Heating & Cooling Models DPS 003 – 028 3 to 28 Tons R-410A Refrigerant Energy Recovery Wheel Catalog 256-13 Rebel™ Commercial Packaged Rooftop Systems Heating & Cooling Models DPS 003 – 028 3 to 28 Tons R-410A Refrigerant Energy Recovery Wheel 3–6 tons 7–15 tons Shown with Energy Recovery 16–28 tons Shown with Energy Recovery TABLE OF CONTENTS TABLE OF CONTENTS Introduction . 3 Application Considerations . 16 Rebel, the most energy efficient packaged rooftop unit ..........3 Unit Location .......................................16 Agency Listed........................................3 Service Clearance ...................................16 Features and Options . 4 Curb Installation .....................................16 Cabinet, Casing, and Frame . 6 Acoustical Considerations ...............................21 Compressor . .6 Ductwork Considerations ................................21 Outdoor Coil .........................................7 Return Duct ........................................21 Indoor Coil . 7 Supply Duct . 21 Heat Pump Heating ...................................7 Duct High Limit ......................................21 Modulating Hot Gas Reheat .............................8 Vibration Isolation....................................21 Supply Fan ..........................................8 Smoke and Fire Protection...............................22 Variable Air Volume Control .............................8 Variable Air Volume Application ...........................22 Exhaust Fan .........................................8 Single Zone Variable Air Volume Application .................22 Filters . 8 Fan Operating Range...................................22 Heating Section ........................................9 Indoor Fan and Motor Heat ..............................22 Gas Furnace.........................................9 Altitude Adjustments....................................23 Electric Heat .........................................9 Fan Curve Performance ...............................23 Hot Water Coil .......................................9 Condenser Performance ................................23 Outdoor Air (OA) Monitor and Controller ....................10 Furnace Performance...................................23 Outdoor/Return Air Section .............................. 11 System Operating Limits ................................23 Energy Recovery Wheel................................. 11 Condensate Drainage ..................................23 Electrical ............................................12 Zone Sensor Placement.................................23 Intelligent Equipment™ ..................................12 Unit Wiring . .24 Optional Modulating Hot Gas Reheat . 14 Winter Shipment.......................................24 Coil Freeze Protection ..................................24 Modulating Hot Gas Reheat ..............................14 Parallel Air Paths on Energy Recovery Wheel Applications ......24 Dehumidification Initiation . .15 Economizer Units ....................................24 Dehumidification Termination ...........................15 100% Outdoor Air Units . .24 Control & Arrangement................................15 Physical Data . 25 Performance Data . 27 Fan Curves...........................................27 Heating Capacity ......................................31 Air Pressure Drops .....................................32 Dimensional Data . 34 Electrical Data . 43 Engineering Specifications . 45 CAT 256-13 • REBEL PACKAGED ROOFTOP 2 www.DaikinApplied.com INTRODUCTION INTRODUCTION Rebel, the most energy efficient packaged rooftop unit Daikin Rebel™ commercial rooftop systems provide building by continuously monitoring and adjusting that temperature. owners with energy savings of up to 84% above ASHRAE’s Because the inverter operates and adjusts room temperature 90.1 standard, enabling for complete system payback in only when needed, energy consumption (and noise) drops under two years. Combining quality manufactured Daikin drastically compared to traditional on/off compressor systems. equipment with advanced Daikin technologies, Rebel delivers Modulating hot gas reheat, electronic expansion valves, a superior commercial rooftop part-load rating of up to 20.6 economizer, MicroTech® III controls, 100% OA, and more, IEER, making these units ideal for any low-rise commercial further contribute to superior efficiencies, enhanced comfort, building like schools, retail, medical offices, and dedicated quiet operation, quality, reliability, and serviceability you expect outdoor air systems. from the world’s leading HVAC manufacturer. Rebel’s innovative design utilizes an industry first variable An optional energy recovery wheel transfers both heat and speed Daikin heat pump with hybrid heat (gas, electric, or hot moisture energy between the exhaust and ventilation air. In water) options, variable speed ECM motors on all fans, ultra- doing so, it conditions the incoming ventilation air. This total quiet composite condenser fans, and an advanced modulating energy device offers a cost-effective and efficient method for variable speed inverter scroll compressor to achieve containing energy costs while meeting ventilation requirements unprecedented rooftop energy efficiencies. of ASHRAE Standard 62.1. Configurable as an industry-first VAV heat pump, Rebel offers further configuration flexibility for adverse weather Award-winning performance conditions. For much of winter, Rebel’s heat pump provides Since introduction, Rebel’s use of those advanced technologies a more economical solution than gas heat. During extreme have led numerous system performance awards, such as: cold weather, back-up hybrid heat options can be used for additional heat and defrost operation. • 2014 Consulting Specifying Engineer Product of the Year Finalist Variable speed ECM motors or VFDs on all fans greatly increase system reliability and efficiency by eliminating use of • 2013 ACHR The News Dealer Design Gold Award belts. These motors incorporate built-in inverters and ultra- • 2013 Buildings Top Money Saving Products efficient magnetic rotors to save energy at light load conditions. • 2012 Minnesota Business Innovator of the Year Composite Daikin condenser fans create ultra-quiet operation, • 2011 ACHR The News Dealer Design Silver Award are UV and corrosion resistant, and deliver tremendous energy savings via ECM motors. Industry Firsts Rebel's variable speed Daikin inverter scroll compressor • 1st to meet/exceed DOE Rooftop Unit Challenge. delivers higher energy efficiency ratios and lower energy • 1st AHRI certified VAV/air-to-air heat pump. costs than typical fixed speed, digital scroll, or 2-stage scroll • 1st rooftop/heat pump with variable .speed compressors. compressors. The Daikin inverter scroll compressor provides • 1st rooftop/heat pump with electronic expansion valves. true modulating capacity and unsurpassed comfort control Agency Listed: Figure 1: Nomenclature DPS – 010 – A H H G 4 Daikin Packaged System Line voltage 2 = 208 volt power supply Nominal capacity 3 = 230 volt power supply 003 = 3 tons 016 = 16 tons 4 = 460 volt power supply 004 = 4 tons 018 = 18 tons 5 = 575 volt power supply 005 = 5 tons 020 = 20 tons 006 = 6 tons 025 = 25 tons Heat medium 007 = 7.5 tons 028 = 28 tons Y = None (cooling only) 010 = 10 tons G = Natural gas heat 012 = 12 tons E = Electric heat 015 = 15 tons W = Hot water heat Design vintage Unit style A = Vintage 1 C = Cooling only, fin tube H = Heat pump (3–15 tons only) Cooling efficiency M = Cooling only, micro-channel H = High (exceeds ASHRAE 90.1) www.DaikinApplied.com 3 CAT 256-13 • REBEL PACKAGED ROOFTOP FEATURES AND OPTIONS ONS TI P O AND ™ Rebel Packaged Singlezone Heating and Cooling Units—Features and Options URES T EA F 8 5 4 6 9 1 7 11 ® 1 Variable speed Daikin inverter 4 MicroTech III unit controller 6 Variable speed ECM motors or compressor • Open Choices™ feature provides VFDs on all fans • Modulating capacity allows for interoperability with BACnet®, • Greatly increases system reliability optimum comfort control Daikin D3 and LONWORKS® and efficiency eliminates belts and • Best part-load efficiency in the communication options for easy bearing setscrews industry integration with building automation • Saves energy at light load • Dependable and quiet operation systems • Built-in inverter eliminates control • Superior discharge air temperature • Unit diagnostics for easy panel heat control serviceability • Outdoor air and humidity control 7 Hybrid backup heat options 2 Variable speed Daikin heat logic maintains minimum fresh air • Gas furnace with turndowns as high pump intake and optimum humidity levels as 10.1 • More economic than gas heat during • Optionally add the Intelligent • Electric heat option with SCR for winter Equipment™ control solution, which precise temperature control • Hybrid backup heat options for provides real-time data streams • Hot water heat extreme cold weather and defrost for benchmarking performance, 8 operation monitoring system operations and Ultra-quiet Daikin condenser • Modulating capacity delivers the implementing remote diagnostics fans industry's best heat pump control and control • One-piece composite blade design for noiseless operation 5 Hinged access doors 3 Electronic expansion valves • UV and corrosion resistant • Optimum control of superheat • ¼–turn latch door provide easy access to system components for • Variable speed ECM motors provide • Protects compressor from liquid maintenance and service tremendous energy savings at lower refrigerant ambient • Increases efficiency by safely lowering head pressure CAT
Recommended publications
  • With Air Purification
    As clean as it is Cool with Air Purification Do you know how small the size of Ultrafine dust which impact your helath? Traps all particles without fail, even Ultrafine dust (PM 1.0) Micro Dust Filter 90㎛ 50 ~ 70㎛ PM 10 PM 2.5 PM 1.0 Fine Human Hair Dust, Pollen, Combustion Smog, Smoke, Beach Sand Mold, etc particles, organic Diesel soot compounds, metals, etc. ※ PM : Particulate matter is the sum of all solid and liquid particles suspended in air many of which are hazardous. This complex mixture includes both organic and inorganic particles, such as dust, pollen, soot, smoke, and liquid droplets. Protect your family from Ultrafine dust. www. LG.COM As clean as it is Cool with Air Purification Why your A/C needs air purification? Outdoor air is bad? No need to worry. With the LG ThinQ app, you can monitor the state of the indoor air at a glance. Traps all particles without fail, even Ultrafine dust (PM 1.0) 90㎛ 50 ~ 70㎛ PM 10 PM 2.5 PM 1.0 Fine Human Hair Dust, Pollen, Combustion Smog, Smoke, Beach Sand Mold, etc particles, organic Diesel soot compounds, metals, etc. www. LG.COM DUALCOOL with Air Purification KEY FEATURES Air Conditioner and air purifier in one PM1.0 sensor is automatically activated and filtration system removes microscopic dust after 5 million lons capture them. Step 1 PM 1.0 Auto Sensing Step 2 Ion Diffuser Step 3 Filtration System Step 4 Display - Indoor Air Detecting indoor dust 5 million negative ions emitted Effective particle capture.
    [Show full text]
  • COMFORT™ SERIES PACKAGED HEAT PUMP and PACKAGED HYBRID HEAT® SYSTEMS High-Efficiency Packaged Products with Your Comfort in Mind
    COMFORT™ SERIES PACKAGED HEAT PUMP AND PACKAGED HYBRID HEAT® SYSTEMS High-efficiency packaged products with your comfort in mind Models 50VT, 48VT DESIGNED WITH YOUR COMFORT IN MIND Innovation, efficiency, quality: Our Comfort™ Series packaged heat pumps and packaged Hybrid Heat® systems represent years of research and design with one goal in mind – helping your family with comfort solutions. With durable, lasting comfort and the option to choose a traditional heat pump or gas furnace and heat pump combined, Comfort™ Series packaged products offer the Carrier quality, environmental stewardship and lasting durability that have endured for more than a century. While both of these packaged products provide comfort all year long, our Hybrid Heat systems can be an excellent choice in areas where having both gas and electric heat pump heating are desirable for maximum comfort and energy savings. EFFICIENCY SEER (Seasonal Energy Efficiency Ratio), HSPF (Heating Seasonal Performance Factor) and AFUE (Annual Fuel Utilization Efficiency) ratings are like your car’s MPG – the higher the number, the greater the potential for savings. Comfort™ Series packaged heat pumps and packaged Hybrid Heat systems offer up to 14.5 SEER cooling and 8.0 HSPF heating. The packaged Hybrid Heat system also reaches 81% AFUE gas heating. DURABILITY A galvanized steel cabinet and heavy-duty wire coil guard provide protection against dings, dents and other outdoor threats. Our unique cabinet design puts the condensing coil above ground level and further out of harm’s way. The bottom half of the cabinet is fully sealed to help keep moisture, leaves, dirt and other potential corrosives out.
    [Show full text]
  • Small Air to Water Heat Pump Chiller | Resdiential Hydronic Heat Pump
    The World’s Most Efficient Chiller Heat Pump Ultra-Efficient Multiple IDUs - Up to 8 Indoor Units Per CX34 CX34 Air-To-Water Heat Pump 2 Tons Cooling / 3 Tons heating IPLV Cooling 26,615 BTU COP 6.75 EER 23.02 Heating 33,813 BTU COP 3.92 Save More w/ DC Inverter Fan Motors All of the thin-line (5.1" thin) wall, floor and ceiling fan coil units use high efficiency and nearly silent DC Inverter fan motors, designed for 115v 50/60Hz power. 220v 50/60Hz standard FCUs are available for export customers. Geothermal Performance There is no Energy Star program for air to water heat pumps. However, the Chiltrix air-cooled chiller exceeds the Energy Star EER requirements for geothermal water-to-water systems. Server Room Cooling Ultra High Efficiency Heat Pump Chiller Chiltrix offers an optional Free Cooling add-on which allows up The CX34 obtains its ultra high efficiency using existing technologies in to EER 141+ & COP 41+ cooling performance during winter at a new way. For example, we use a DC Inverter compressor and a DC low ambient temperatures. Chiltrix chillers are also available Inverter water pump (both are variable speed) controlled together with in a N+1 redundant configuration. a DC inverter fan motor to achieve the best possible balance of water flow rate, compressor speed, and energy use. Solar Ready Perfect for solar PV operation with super low power draw and A special control algorithm looks at the temperature delta between the a 2 amp soft start that’s easy on inverters and batteries.
    [Show full text]
  • New Low-Temperature Central Heating System Integrated with Industrial Exhausted Heat Using Distributed Electric Compression Heat Pumps for Higher Energy Efficiency
    energies Article New Low-Temperature Central Heating System Integrated with Industrial Exhausted Heat Using Distributed Electric Compression Heat Pumps for Higher Energy Efficiency Fangtian Sun 1,2,*, Yonghua Xie 1, Svend Svendsen 2 and Lin Fu 3 1 Beijing Research Center of Sustainable Energy and Buildings, Beijing University of Civil Engineering and Architecture, Beijing 100044, China; [email protected] 2 Department of Civil Engineering, Technical University of Denmark, 2800 Lyngby, Denmark; [email protected] 3 Department of Building Science, Tsinghua University, Beijing 100084, China; [email protected] * Correspondence: [email protected]; Tel.: +86-010-6832-2133; Fax: +86-010-8836-1680 Received: 23 October 2020; Accepted: 9 December 2020; Published: 14 December 2020 Abstract: Industrial exhausted heat can be used as the heat source of central heating for higher energy efficiency. To recover more industrial exhausted heat, a new low-temperature central heating system integrated with industrial exhausted heat using distributed electric compression heat pumps is put forward and analyzed from the aspect of thermodynamics and economics. The roles played by the distributed electric compression heat pumps in improving both thermal performance and financial benefit of the central heating system integrated with industrial exhausted heat are greater than those by the centralized electric compression heat pumps. The proposed low-temperature central heating system has higher energy efficiency, better financial benefit, and longer economical distance of transmitting exhausted heat, and thus, its configuration is optimal. For the proposed low-temperature central heating system, the annual coefficient of performance, annual product exergy efficiency, heating cost, and payback period are about 22.2, 59.4%, 42.83 ¥/GJ, and 6.2 years, respectively, when the distance of transmitting exhausted heat and the price of exhausted heat are 15 km and 15 ¥/GJ, respectively.
    [Show full text]
  • Inverter High Wall Unit
    Indoor Unit HEAT PUMP Unit 42QHA012VS 42QHA018VS 42QHA024VS 42QHA030VS Unit Size TR 1.0 1.5 2.0 2.5 Inverter High Wall Unit BTU/h 12000 18,000 22,000 27000 Rated Capacity at T1 Cooling kW 3.51 5.25 6.45 7.90 42QHA/38QHA BTU/h 10600 16,400 19,200 23,200 Rated Capacity at T3 Cooling kW 3.09 4.80 5.61 6.80 Rated Capacity Heating Watts 3,500 5,450 7,600 8,300 Power Supply V-Ph-Hz 220-240V- 50/60Hz, 1Ph Total System Power Input at T1 Cooling Watts 870 1,300 1,570 2160 Total System Power Input at T3 Cooling Watts 1,080 1,630 1,970 2605 Total System Power Input Heating Watts 950 1,390 2,100 2100 EER at T1 Cooling Btu/W-h 13.75 13.85 14.00 12.50 EER at T3 Cooling Btu/W-h 9.80 10.05 9.75 8.85 COP Heating w/w 3.65 3.90 3.60 3.95 Air Filter Type Washable air filter Air Flow Rate (High/ Medium/ Low Speed) CFM 356 / 280 / 230 685 / 535 / 485 685 / 540 / 485 765 / 645 / 575 Indoor Noise Level (High/ Medium/ Low Speed) dBA 41 / 37 / 33 49 / 43 / 41 49 / 45 / 41 51 / 48 / 45 Net / Gross Weight Kg 8.7 / 11.1 13.5 / 17.1 13.8 / 17.4 20 / 25.9 Dimensions (W x D x H) mm 802 x 189 x 297 1080 x 226 x 335 1080 x 226 x 335 1259 x282 x362 Liquid inch 1/4" 3/8" Pipe Connection Size Suction inch 1/2" 5/8" Drain inch 5/8" HEAT PUMP Outdoor Unit Unit 38QHA012VS 38QHA018VS 38QHA024VS 38QHA030VS Power Supply V-Ph-Hz 220-240V- 50/60Hz, 1Ph Compressor Type DC Inverter Rotary Refrigerant R410a Vertical + mts 25 30 30 50 Horizontal Refrigerant Pipe (Max Length) Vertical mts (OU & IU) 10 20 20 25 Recommended Wire Size/No.
    [Show full text]
  • Inverter Scroll Compressor Advantages
    For Internal Training Inverter scroll compressor advantages Sales / Technical Guide Compressor Mechanism (Inverter and Digital comp.) Inverter Scroll Digital Scroll The Mechanism of Inverter Scroll The Mechanism of Digital Scroll Discharge gas PWM valve Radial compliant Discharge Fixed scroll mechanism Bleed hole Orbiting scroll Fixed scroll (spring loaded) Suction Crank shaft Pivot Bearing mechanism Orbiting scroll Mitsubishi Electric inverter scroll compressor adopts radial Digital scroll compressor adopts refrigerant bypass mecha- compliant mechanism which contributes high efficiency nism to control its capacity. Though it can work as inverter even at the low or high speed operation. This mechanism type in terms of operation range, the efficiency goes down has no clearance between orbiting and fixed scroll, which in light load. means excellent refrigerant seal and high COP. 1 Mechanism of Inverter Scroll Mechanism of Digital Scroll Radial compliant mechanism Wrap contact force Fixed Scroll F=Fc-Fr Wrap Fixed Scroll Wrap PWM valve on direction of Wrap Orbiting Scroll contact 100% unloaded Wrap Fc no compression Slider Parts Fg Scroll separates by 1mm Fgr Crank shaft Orbiting Scroll Wrap Fc : Centrifugal force of Scroll Wrap With digital scroll compressor, one of the scroll is lifted up Fg : Compressed gass load 1 to control the capacity with electric valve. In light load time Fgr : Compressed gass load 2 or period, the refrigerant leakage is too big to run efficient- ly. Electric valve is always being used and scroll parts vert- ically hit each other inside the shell. This means less reli- ability and shorter lifespan than inverter type. Mitsubishi Electric inverter compressor makes use of the centrifugal force with scroll rotation very well.
    [Show full text]
  • Rebel® Commercial Packaged Rooftop Systems Heating & Cooling Models DPS 003 – 028 3 to 28 Tons R-410A Refrigerant Energy Recovery Wheel
    Catalog 256-14 Rebel® Commercial Packaged Rooftop Systems Heating & Cooling Models DPS 003 – 028 3 to 28 Tons R-410A Refrigerant Energy Recovery Wheel 3–6 tons 7–15 tons Shown with Energy Recovery 16–28 tons Shown with Energy Recovery Table of Contents Table of Contents Introduction . 3 Application Considerations . 16 Features and Options . 4 Unit Location .......................................16 Cabinet, Casing, and Frame . 6 Service Clearance ...................................16 Compressor . .6 Curb Installation .....................................16 Outdoor Coil .........................................7 Acoustical Considerations ...............................22 Indoor Coil . 7 Ductwork Considerations ................................22 Heat Pump Heating ...................................7 Return Duct ........................................22 Modulating Hot Gas Reheat .............................8 Supply Duct . 22 Supply Fan ..........................................8 Duct High Limit ......................................22 Variable Air Volume Control .............................8 Vibration Isolation....................................22 Exhaust Fan .........................................8 Smoke and Fire Protection...............................23 Filters . 8 Variable Air Volume Application ...........................23 Heating Section ........................................9 Single Zone Variable Air Volume Application .................23 Gas Furnace.........................................9 Fan Operating Range...................................23
    [Show full text]
  • Inverter Compressor Technology
    Maverick® II systems - now with inverter compressor technology Market-leading rooftop efficiency solutions Daikin Applied continues to provide Operate quietly market-leading efficiency solutions Inverter compressors provide superior reduction in by offering inverter compressors in sound levels: rooftop systems that include Rebel™ • Sound levels at part-load operation are very low (3-15 ton), RoofPak™ (16-75 ton), and • Irritating on/off compressor cycling is eliminated now - Maverick II (26-50 ton). Inverter compressors modulate, delivering only Outperform digital scrolls the required energy to satisfy space The energy efficiency of an inverter compressor is conditions, providing for exceptional far superior to that of a digital scroll compressor. temperature/humidity control and lower Digital scroll compressors have specific performance limitations that should not be overlooked when making operating costs. compressor selections: Lower operating costs • Digital scroll compressors always operate at full Inverter compressors will reduce your building’s operation speed and are less efficient at part-load applications costs by saving energy: • To try to match building load, digital scrolls require • Use only the required energy to exactly match more energy to load and unload the compressor in building load while minimizing over-cooling 5-20 second intervals • As digital scrolls load and unload, audible noise • Low speed operation reduces energy consumption; levels fluctuate noticeably soft start reduces energy needed for compressor in-rush power • Minimal compressor cycling saves energy (also eliminates DX coil condensate re-evaporation) Improve operation and comfort control The modulating capacity of an inverter compressor eliminates constant on-off cycling and continually maintains the desired leaving air temperature (LAT), resulting in: • Better dehumidification and comfort control • Extended compressor life via better expansion valve control and minimal cycling ©2014 Daikin Applied.
    [Show full text]
  • Chofu Heat Pumps
    Chofu Heat Pumps Latest heat pump technology Made in Japan for Central Heating New Zealand, Chofu air-to-water heat pumps are ideal for warm water underfloor heating as well as radiators and domestic hot water production. Featuring a remote programmable keypad for control of operation, this heat pump is proven in the New Zealand environment. An investment in your comfort For more than 50 years Chofu has dominated • 5-Year Warranty Japan’s domestic heating market becoming a household name synonymous with reliability and • Inverter Compressor quality. Chofu’s commitment to technological • Super Low Noise - 51 dB(A) innovation, renewable energy and conservation has secured the company’s position as Japan’s • Max Temp 60°C leading air-to-water heat pump manufacturer. • Min Ambient -20°C Unknowingly, you may already be taking • Environmentally friendly R32 advantage of Chofu’s expansive product offering. refrigerant gas For decades the company has been providing • 10% reduction in energy consumption complete white-label systems or componentry to international heating companies. 0800 357 1233 | [email protected] | centralheating.co.nz Page: 1 of 2 A recent change in strategic direction has seen Chofu take large steps into the global heating arena. No longer the backing singer, Chofu is R32 poised to take centre stage and its fair share of Refrigerant Gas the international limelight. Chofu’s air-to-water heat pumps are an investment in your comfort and health. If you are wanting heating technology which boasts higher efficiencies, lower operation costs and more eco-friendly features than traditional heating methods look no further than Chofu’s range.
    [Show full text]
  • Evaluation of the Thermal Performance and Energy Efficiency
    applied sciences Article Evaluation of the Thermal Performance and Energy Efficiency of CRAC Equipment through Mathematical Modeling Using a New Index COP WEUED Alexandre F. Santos 1,2, Pedro D. Gaspar 1,3 and Heraldo J. L. de Souza 2,* 1 Department of Electromechanical Engineering, University of Beira Interior, 6201-001 Covilhã, Portugal; [email protected] (A.F.S.); [email protected] (P.D.G.) 2 FAPRO—Professional College, Curitiba 80230-040, Brazil 3 C-MAST—Centre for Mechanical and Aerospace Science and Technologies, 6201-001 Covilhã, Portugal * Correspondence: heraldo@escolaprofissional.com.br; Tel.: +55-41-999748928 Abstract: As the world data traffic increasingly grows, the need for computer room air conditioning (CRAC)-type equipment grows proportionally. The air conditioning equipment is responsible for approximately 38% of the energy consumption of data centers. The energy efficiency of these pieces of equipment is compared according to the Energy Standard ASHRAE 90.1-2019, using the index Net Sensible Coefficient Of Performance (NetSCOP). This method benefits fixed-speed compressor equipment with a constant inlet temperature air-cooled condenser (35 ◦C). A new method, COP WEUED (COP–world energy usage effectiveness design), is proposed based on the IPLV (integrated part load value) methodology. The IPLV is an index focused on partial thermal loads and outdoor Citation: Santos, A.F.; Gaspar, P.D.; temperature data variation for air intake in the condenser. It is based on the average temperatures of de Souza, H.J.L. Evaluation of the the USA’s 29 major cities. The new method is based on the 29 largest cities worldwide and with data- Thermal Performance and Energy center-specific indoor temperature conditions.
    [Show full text]
  • Small Office Incentive Workbook
    BUSINESS New Buildings SMALL OFFICE INCENTIVE WORKBOOK SIMPLE SOLUTIONS FOR BIG ENERGY SAVINGS Boost operating income and asset value boost of $168,700. Energy-efficient value through energy efficiency solutions also can contribute to enhanced tenant comfort, higher occupancy rates and Energy Trust of Oregon knows that reducing lower operation and maintenance costs. building energy use by installing energy- efficient equipment and systems has been Energy Trust can help you capture these benefits shown to increase net operating income, or and earn cash incentives for energy-efficient NOI, and asset value. For example, according equipment and building practices with our market to ENERGY STAR®, installing a highly efficient solutions package for office buildings less than variable refrigerant flow, or VRF, heating 70,000 square feet. Whether you’re planning system in a 40,000-square-foot office to build a new office or kicking off a major building can save up to $0.34 per square foot renovation, it provides a simple way to identify every year in energy costs, translating into an the best energy solutions for your office space. additional NOI of $13,496. At a cap rate* of eight percent, this results in a potential asset * NOI divided by the sales price or value of a property expressed as a percentage. Energy Trust outreach managers can offer input and feedback as you make energy-related decisions and assist you in completing this workbook. If you have questions or need help getting started, contact the outreach manager listed here. Name Email Phone Number 1 HOW TO USE THIS WORKBOOK What is the small office incentive package? This package offers an all-in-one, step-by-step process for designing and selecting energy-efficient systems and equipment that are cost-effective and qualify for cash incentives.
    [Show full text]
  • Feasibility Study on Variable-Speed Air Conditioner Under Hot Climate Based on Real-Scale Experiment and Energy Simulation
    energies Article Feasibility Study on Variable-Speed Air Conditioner under Hot Climate based on Real-Scale Experiment and Energy Simulation Jaehun Lim 1,2, Myung Sup Yoon 2, Turki Al-Qahtani 3 and Yujin Nam 1,* 1 Department of Architectural Engineering, Pusan National University, 2 Busandaehak-ro 63, Geomjeong-gu, Busan 46241, Korea; [email protected] 2 Korea Testing Laboratory, 87, Digital-ro, Guro-gu, Seoul 08389, Korea; [email protected] 3 Saudi Standards Metrology and Quality Organization, Al Imam Saud Ibn Abdul Aziz Road, Al Mohammadiyah, Riyadh 11471, Saudi Arabia; [email protected] * Correspondence: [email protected]; Tel.: +82-51-510-7652; Fax: +82-51-514-2230 Received: 19 March 2019; Accepted: 18 April 2019; Published: 19 April 2019 Abstract: It is well known that inverter-driven variable-speed compressor (or inverter) air conditioners are more efficient than constant-speed compressor air conditioners. Therefore, most countries have employed part-load assessment test standards such as ISO 16358, EN 14825 and ASHRAE 116 in addition to the conventional ISO 5151 full-load test standard to appropriately evaluate the part-load efficiencies of variable-speed air conditioners. However, many countries in the Middle East and South America still use the ISO 5151 standard owing to policy or high- temperature environmental considerations. In this study, we experimentally verify the energy saving effect of the inverter air conditioner with respect to the constant-speed air conditioner under the Korean climate with distinct temperature changes of four seasons and under the hot climate of Saudi Arabia throughout the year.
    [Show full text]