So where are the failures 6 Application Note Rooftop Top Unit (RTU) Controller . It stands for “roof top unit.” So now you can guess that this type of HVAC equipment lives on the roof. Johnson Controls AD15 15 ton rooftop unit. Using the Telecontrol Interface Module TIM 1531 IRC, you can set up modular remote terminal units (RTUs) based on the SIMATIC S7-1500 controller. We spoke with Kevin Stockton, Product Manager for rooftop units, Johnson Controls. Here you can see how to configure such an RTU in the TIA Portal and commission it. The example shown here refers to the DNP3 telecontrol protocol, but the procedure for IEC 60870-5 is almost identical. Source 1® Parts is your one-stop, factory-direct resource for HVAC parts, products and expertise with convenient locations across the United States. Considering an RTU HVAC for your business? The RTU application uses State Based Control to ensure proper control of the Rooftop. Choice is designed to exceed DOE 2018 guidelines by up to 25 percent and surpasses DOE 2023 part-load standards … Key Concepts . • Inputs: Extract information from the system. When the economizer is installed as a field option, the controller is fac-tory mounted with a wiring harness that is necessary for con- Johnson Controls Unitary Products 1 Simplicity SE (SMART Equipment) Controls Technical Guide SE-SPU1001 (031-03480-000A / 1149498) 1-stage no Comm ... bus to the main controller of the RTU, the UCB. State Based Control . So you save time and money on installation, while reducing energy usage over the long run. RTU Performance Degradation According to the DOE, older inefficient commercial RTU air conditioning systems are common and can waste from $1,000 to $3,700 per unit annually, depending on building size and type . What exactly is an RTU? Add to Compare. These can cause the RTU to use far more energy than is needed . TempMaster ® Omni™ Choice (15-27.5 T) Choice rooftop units deliver on our commitment to leading the industry in rooftop performance, flexibility and quality with the most economical 15-27.5 ton comfort cooling solution on the market today. Figure 1: State Based Control Diagram . Submittal Data Sheet: Johnson Controls Choice AD15 to AD28 7 Johnson Controls Ducted Systems. The Johnson Controls Series 10 single packaged unit combines superior efficiency ratings (upto 12.2 EER ) and ease of installation in a light commercial unit. go unidentified . State Based applications have the following components. Packaged Units/RTU; Johnson Controls Choice Rooftop Units (5) Johnson Controls AD18 17.5 ton rooftop unit. Acce ssor y weights Table 3: Unit accessory weights Unit size Unit accessory 15 to 17.5 ton 20 ton 25 ton 27.5 ton Economizer 145 145 165 165 Motorized damper 65 … R-410a, 1830 lbs, 48-9/16 inches, 88-3/4 inches, 129-3/4 inches. If you’re adding or replacing heating and air conditioning equipment in a commercial space, your contractor may recommend an RTU HVAC unit. Packaged Rooftop Units Superior Efficiency, Greater Control, Unmatched Comfort. Contracting Business wanted to speak with an expert from Johnson Controls, to help inform contractors on the various ways in which these trends are influencing the design of Johnson Controls’ newest RTU products, the Premier line of rooftop units. Examples include With a 3-150 ton capacity range and efficiency ratings as high as 17.5 SEER, YORK® Commercial Packaged Rooftop Units in both A/C and packaged heat pump models balance minimized installation and operating costs and come Smart Equipment enabled. Speaking of efficiency ratings, the Choice rooftop units range from 11.1 to 14.8 IEER, and the RTU’s capacity runs from 15 to 27.5 tons. This type of HVAC equipment lives on the roof Efficiency, Greater Control, Unmatched Comfort Control... 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