FORM 145.32-IOM1 (908)

DUCTWORK

When installing ductwork, adhere to local Codes and sensible practice. Minimize duct runs and avoid abrupt changes in direction where possible. Allow ample access space for servicing of the coils and changing of filters. Perform regular maintenance on ducts to increase unit life, maintain efficient operation, and reduce accumu- lation of explosive dust. Refer to blower performance charts, and engineer duct runs and accessory pres- sure drop so as not to exceed maximum external static values.

LOUVER SIZING GUIDELINES

One of the key issues in obtaining optimum performance from indoor air-conditioners is the proper selection of the condenser intake and discharge louvers. Unlike outdoor air cooled units, which intake and discharge their cooling virtually unrestricted, indoor units must overcome the resistance of grilles or louvers at the outside wall - plus the restriction of any interconnecting ductwork.

Our indoor air cooled air-conditioners are designed to ac- commodate the external static pressure loss associated with properly sized louvers of the “storm proof” type. This type of louver typically has a free area approximately 40-45% of the actual louver size. To determine the free area required for any given unit, adhere to the following guidelines:

-Size condenser air intakes for 500-750 feet/minute nominal velocity

(Maximum recommended 800 feet/minute)

-Size condenser air discharge for 1,200-1,500 feet/ minute nominal velocity

(Maximum recommended 1,700 feet/minute)

The use of louvers with higher velocities than above may be employed, at the discretion of the engineer/installer, provided that the total air pressure drop does not exceed the capability of the condenser fan and motor. The use of low restriction louvers with shallow blade angles can allow higher face velocities without excessive static pressure loss.

Exceeding the static pressure capability of the con- denser fan will result in insufficient condenser air volume. This will cause a loss in system capacity, and may cause compressor shutdown during high ambient periods. (In- stallation of an oversize condenser motor/drive, where applicable, may be considered in such cases.)

(As a general rule, these velocities will require an intake louver sized approximately 1.25 to 1.5 times the dimen- sions of the duct connection on the unit, and a discharge louver sized approximately 1.5 to 2 times the duct con- nection dimensions.)

Use only louver sections that provide different deflection angles for air discharge and air intake, to ensure the unit does not short circuit. Protect the unit from weather conditions (rain, snow) entering through the condenser air intake. All outdoor air ducts should pitch away from the unit, toward the outside wall. Connect all ducts to unit with canvas section duct connectors or choose another suitable noise and vibration absorbing device.

The Manufacturer will not accept any liability resulting from incorrect instal- lation of this equipment. Follow instal- lation instructions carefully.

Johnson Controls

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Energy Tech Laboratories DSH installation instructions Ductwork, Louver Sizing Guidelines
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DSH specifications

Energy Tech Laboratories DSH is a pioneering organization at the forefront of energy technology innovation. With a commitment to sustainability and efficiency, DSH focuses on developing cutting-edge solutions that address modern energy challenges. The laboratory excels in research and development, primarily emphasizing renewable energy, energy storage systems, and smart grid technologies.

One of the main features of Energy Tech Laboratories DSH is its state-of-the-art research facilities that house advanced equipment and tools for experimentation and analysis. The laboratories are equipped with simulation tools that facilitate the modeling of complex energy systems, enabling researchers to assess the performance of new technologies under various conditions. This capability is vital for optimizing energy solutions before they are deployed in real-world applications.

DSH has developed several key technologies that exemplify its innovative spirit. Solar photovoltaic (PV) integration is one of the flagship projects, focusing on enhancing the efficiency of solar panels through novel materials and designs. The laboratory continuously investigates new photovoltaic materials that can significantly increase sunlight conversion rates, reducing the overall cost of solar energy.

In addition to solar technologies, DSH is a pioneer in the field of energy storage. The laboratory works on advanced battery technologies, including lithium-sulfur and solid-state batteries, which promise higher energy densities and longer life cycles compared to conventional lithium-ion batteries. These enhancements are vital for the effective storage of renewable energy, allowing for smoother integration into the power grid.

Moreover, Energy Tech Laboratories DSH is heavily invested in smart grid technologies, which enhance the efficiency of electricity distribution through real-time data analysis and improved grid management. By deploying advanced metering infrastructure and predictive analytics, DSH aims to create resilient energy systems that can respond dynamically to consumer demand and integrate various energy sources seamlessly.

The laboratory's dedication to collaboration with industry partners, government agencies, and academic institutions ensures that its research is translated into practical solutions. This synergy fosters innovation and accelerates the adoption of sustainable technologies.

In conclusion, Energy Tech Laboratories DSH stands as a pillar of innovation in the energy sector, exemplifying a strong commitment to developing technologies that support a sustainable future. Its focus on renewable energy, energy storage, and smart grid solutions positions it as a key player in the ongoing transition towards a cleaner and more efficient energy landscape.
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