Solarwall
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1. Product Name SolarWall® Solar Air Heating System SolarWall® 2-Stage System SolarDuct® Solar Air Heating System 2. Manufacturer For USA: Conserval Systems, Inc. 4242 Ridge Lea Road, Suite 28 Buffalo, NY 14226 Tel: (716) 835-4903 Fax: (716) 835-4904 For Canada: Conserval Engineering, Inc. 200 Wildcat Road Toronto, Ontario M3J 2N5 Canada Tel: (416) 661-7057 Fax: (416) 661-7146 E-mail: info@solarwall.com www.solarwall.com Various SolarWall® Solar Air Heating Systems 3. Product Description BASIC USE The SolarWall® technology is a solar air heating system that uses solar energy as fuel to heat or ventilate indoor spaces in new or retrofit construction. SolarWall® is an engineered-to-order building integrated solar technology developed and sold, in its various iterations, for over 20-years by Conserval. Applications include commercial, industrial, manufacturing complexes, multi-residential, warehouses, theaters, conference centers, restaurants, agricultural farm buildings, and municipal facilities such as schools, gymnasiums, vehicle maintenance garages, hospitals and arenas. SolarWall systems can be wall mounted or roof mounted, depending on the application, location and climate. The technology is also available in a modular rooftop system called SolarDuct® where the SolarWall panels are mounted onto triangular metal ducts and connected to the air intake of the nearest HVAC unit. SolarWall and SolarDuct systems can also be combined with PV modules to create a PV thermal system with PV modules attached to SolarWall or SolarDuct surface. With conventional single stage SolarWall systems, perforated collector panels are installed several inches from an appropriate wall, creating an air cavity. Sunlight heats the solar collector surface and ventilation fans create a negative pressure in the air cavity, drawing in solar heated air through the perforations in the panels. A connection to an HVAC intake allows air to be preheated before entering the air handler, reducing the load on the conventional heater. Heated air is then distributed into the building through the existing HVAC system or alternately, with separate air makeup fans and perforated ducting. The SolarWall® 2-Stage system is a new variation of the technology which produces a higher temperature rise that is ideally suited for space heating applications or for windy locations. In 2-Stage applications the ventilation air is heated twice as it passes through a first and then a second stage to further boost the air temperature from the SolarWall system. Most rooftop SolarDuct systems are 2-Stage systems to produce a higher temperature rise. The SolarWall® technologies have been recognized for innovation for over two decades and have become the most popular way to solar heat commercial industrial and institutional buildings. A sampling of the awards are: • 2010 Renewable Energy World Award for Best Building Integrated Technology for SolarWall PV/T system at Concordia University • 2009 Technology Award in NY State • 2008 Reader’s Choice Award from Metal Construction News for SolarDuct® • 2007 Canadian solar thermal project award for the Greater Toronto Airport Authority installation • 1995 Manning Innovation Award - Recognizing excellence in Canadian innovation • 1994 Popular Science Magazine Best of What’s New Award - The year’s 100 greatest achievements in Science & Technology • 1994 R&D Magazine Top 100 Award for the most significant new products of the year • 1992 U.S. Department of Energy - SolarWall rated in the top 2% of all energy innovations Conserval is also regularly involved with award-winning and/or LEED® projects that use the SolarWall technologies. COMPOSITION & MATERIALS Metal exterior panels available in 26 or 24 gauge prepainted galvanized steel and are corrugated to increase structural rigidity. Major system components may include: • Exterior wall solar heat panels (26 or 24 ga) and standoff components (18 ga) Duct connection to ventilation fans Temperature controls Trim and closures Flashing to be formed on-site Bypass damper and ducting Engineering drawings Corrugated polycarbonate glazing for SolarWall 2-Stage systems The exterior solar collector panels heat fresh air and are vent-slit perforated for air intake. Porosity values vary depending on the air volume requirements. Panels will heat between 1-10 cfm of air per square foot (18 - 180 m3/h.m2). (See temperature rise curve on the following page.) System design specifications depend on individual project requirements, such as amount of ventilation air to be heated, available wall area, cavity depth and connection point from wall or roof to HVAC units. To ensure maximum performance of any SolarWall system, Conserval’s engineers will review and optimize the design to maximize solar energy performance. The SolarWall technology requires coordination with the mechanical design team to determine the amount of fresh air to be heated (cfm or m3/h) and to ensure that as much as possible of the fresh air requirements 1 This specifications document conforms to the editorial style of The Construction Specifications Institute. SolarWall® systems are patented. SolarWall® and Conserval® are registered trademarks of Conserval Engineering, Inc. Copyright © 2013 Conserval Engineering Inc. All rights reserved. Last

for the building will be solar heated. Solar air systems are often used to preheat the air entering heat recovery ventilators, improving the system efficiency and reducing or eliminating the HRV defrost cycle time. TYPES The roof-mounted SolarDuct 2-Stage systems are available in modular form for easy installation. The heat collected from the system is ducted along the roof to the nearest air handling unit. SolarDuct units can be ballasted or fastened to the roof. Ballasted systems may be subject to code restrictions in some jurisdictions. Temperature Performance for SolarWall Single Stage...