Rebel® Rooftop for Retail
Total Page:16
File Type:pdf, Size:1020Kb
Rebel® commercial packaged rooftop systems for retailers Advanced technologies propel energy savings and customer comfort to uncommon levels. 3 – 28 tons Capitalize on superior energy savings Designed for efficiency A Rebel packaged rooftop system is the ideal solution for any retail The graph below shows a 12-ton Rebel single-zone VAV gas heat unit application. Rebel comes equipped with an array of energy-saving features versus a CAV gas heat unit set in a 7-day retail application in climates like ECM fans, inverter scroll compressors, and the energy recovery wheel. where annual energy costs often exceed $5,000 (results vary depending Producing an astounding 43 percent part-load energy savings above on location). ASHRAE’s 90.1-2016 energy standard code minimums, Rebel generates It’s easy to see Rebel saves...and saves significantly. Rebel gives retailers efficiencies previously unachievable in a commercial rooftop system. one of the lowest total costs of ownership for any commercial rooftop Exceptional cost savings and performance makes Rebel ideal for any retail system. Call your Daikin representative to model your potential savings application such as 100 percent outdoor air, variable air volume (VAV) with using our enhanced Rebel Payback Calculator. duct pressure control, single-zone VAV, or constant air volume (CAV). Rebel annual energy cost savings 60% 50% 40% 30% 20% 10% 0% Fairbanks Minneapolis Denver Albuquerque Chicago Las Vegas Atlanta Houston Miami Baltimore Inverter scroll compressor boosts efficiency At the core of Rebel’s remarkable performance is its inverter scroll Rebel’s inverter compressor, on the other hand, is tightly modulated to compressor, which produces superior energy efficiencies, an extended provide optimal efficiency and consistently maintain user-established lifecycle, ultra-quiet operation, and better shopper comfort. setpoints at both full and part-load conditions. Consequently, the system’s operation consumes only the energy required to meet the Non-inverter compressors must operate at full capacity, even in mild cooling needs of the space. conditions. Like a light switch, these units must be either turned on or turned off. At part-load conditions, they cycle frequently between on For retailers, these extraordinary part-load capabilities mean exceptional and off, leading to spikes in power demand as well as compressor wear, energy savings, precise comfort control, and accelerated payback. temperature fluctuations, and overcooling. Effective dehumidification for comfortable shopping Packaged rooftop systems can deliver effective dehumidification only when their compressors are actively working. As a result, the on/off cycling of non-inverter compressors reduces dehumidification capacity. In contrast, Rebel’s inverter compressor modulates, providing steady moisture regulation for the in-store environment. Rebel is well-equipped to provide you with the dehumidification your store needs. It offers two-point temperature control, which utilizes cooling coils and modulating hot gas reheat coils to perform effective dehumidification without overcooling the air. 11 6 5 4 43% 6 3 Energy 2 1 Savings 10 1] Variable speed inverter scroll compressor 5] Electronic expansion valves - Optimum comfort via modulating capacity control - Delivers optimum control of and discharge air temperature control superheat 5 - Exceptional part-load efficiencies - Prevents liquid refrigerant - Enclosed for quiet operation compressor slugging 2 - Increases efficiencies by lowering 1 head pressure 2] Variable speed heat pump - More economical than gas heat during cold weather 6] Seamless top panel and hinged - Greater comfort control from access door variable speed capacity - Leak-free construction - Easy service and maintenance access using 1/4-turn latch doors 3] Direct-drive variable speed ECM or VFD fan motors - Increases system reliability and 7] Energy recovery wheel efficiency by eliminating belts 3 - Reduces summer/winter and bearing setscrews ventilation loads by transferring - Increases energy savings at part- energy to and from exhaust air. load conditions - Increases efficiency by up to 7 - Offers superior fan efficiencies 20 percent and quiet performance - Simplifies operation with integrated unit control 4] MicroTech® III unit controller - Wheel is an integral part of the cabinet, eliminating field - Simplified BAS integration using assembly and water leakage Open Choices™ feature with BACnet® or LONMARK® communications 8] 2” and 4” slide-out filter racks - Improved serviceability with intuitive unit diagnostics - Quick serviceability with easy filter change-outs - Option of DIII gateway or iTM with BACnet Client - MERV 8 prefilters, MERV 11 – 14 after-filters for iTouch VRV controls - 4” factory-installed filters (16 – 28 tons) 9] Supplemental heat 15] Outdoor air monitor - Gas furnace with up to 12:1 9 - Building pressure override automatically opens dampers turn-down - Monitor ensures precision airflow - Electric heat with SCR - Efficient integrated operation with mechanical cooling - Hot water heat 10] Double-wall foam cabinet 15 - Provides for fiber-free air stream - Energy-efficient R7 and R13 foam-injected panels 11 11] Condenser fans with variable Rooftop efficiencies speed ECM motor Many stores often require only a portion of their rooftop unit’s - Energy savings cooling power. One analysis of the cooling load of a retail building - Quiet operation in St. Louis, Missouri showed the majority of the cooling demand - Fully modulating head happening at 40 percent of full-load capacity or lower. pressure control St. Louis store yearly runtime at part-load conditions 700 12] Modulating hot gas reheat coil 12 600 - Reuses waste heat for increased energy efficiency 500 - Maintains desired indoor dew 400 point temperatures 300 - Two-point temperature control provides effective 200 Cooling Runtime (hours) Runtime Cooling dehumidification without 100 overcooling the space 0 10-20 20-30 30-40 40-50 50-60 60-70 70-80 80-90 90-100 Cooling Load (percentage) 13] Stainless steel, double-slope drain pan Rebel excels under partial-load conditions, offering up to 70 - Prevents corrosion and percent improvements to IEER compared to ASHRAE 90.1-2016 standing water to promote code minimums, which equates to 43 percent energy savings. higher indoor air quality With EERs that surpass 90.1-2016 minimums by up to 14 percent, 13 Rebel is also equipped to provide efficient full-load operation. 14] Economizer Between its part and full-load efficiencies, Rebel is one of the - Free cooling when outdoor industry’s most energy-efficient rooftop systems, providing energy conditions are favorable savings and often earning utility rebates. - Meets many local statutes for fresh air provision Efficiency ratios (10-ton unit) - Integrates operation 22 with mechanical cooling 20 - Increases efficiency with 14 IEER demand control ventilation 18 EER 16 14 8 12 Up to 70% Better 14% 10 Better ASHRAE RTU RTU Daikin 90.1-2016 digital scroll multiple steps Rebel RTU Advanced technology drives customer comfort Elevate the shopping experience As a retailer, you may feel conflicted between the need to ensure shopper Get connected ® comfort and the desire to keep energy costs low. With Rebel packaged Smart businesses run on Intelligent Equipment rooftop unit, you get both. Gain the freedom and control to monitor and manage your HVAC Rebel delivers powerful temperature control and quiet operation to equipment effectively create a pleasant environment for your customers. The inverter scroll Intelligent Equipment is a control solution that connects directly with compressor enables precision temperature control by moderating speed at your Rebel commercial packaged rooftop unit to monitor energy part-load conditions. This feature also decreases radiated noise, as do the consumption at the equipment level for deeper, more accurate ECM condenser fans, so Rebel stays quiet while keeping your customers performance measurement. comfortable. For less than it costs to run your smart phone, Intelligent Equipment In addition, Rebel’s economizer can be set to monitor and adjust outdoor provides real-time, direct access to 150 data points on a Rebel unit. air intake to meet air quality requirements. Do more than ever before with: Providing high-quality indoor air, quiet performance, and precise - Remote access temperature control, Rebel ensures that your building is a relaxing space - Performance data for customers to explore and shop. - Energy monitoring and management - Unit diagnostics High-tech features lead to lifecycle savings No other solution gives you the freedom and control to monitor and Rebel achieves one of the lowest costs of ownership among comparable manage your equipment as deeply, freely, accurately, and efficiently. units because its efficient technologies, intelligent controls, and hassle-free maintenance produce energy savings and reliable performance throughout its lifecycle. In addition to precision temperature control, the inverter scroll compressor minimizes cycling, saving energy and extending the unit’s service life. Slide- out features and easy access to electrical and mechanical components make Rebel’s upkeep incredibly simple. Intelligent Equipment’s proactive monitoring and timely notifications for maintenance keep Rebel performing year after year, so you get long-term uninterrupted operation. Take control over your space and give your customers an incredibly comfortable shopping experience, all while enjoying the benefits of Rebel’s