Common venting systems may be too large when an existing unit is removed. At the time of removal of an existing appliance, the following steps must be followed with each appliance remaining connected to the common venting system placed in operation, while the other appliances remaining connected to the common venting system are not in operation.

a)Seal any unused opening in the common venting system.

b)Visually inspect the venting system for proper size and horizontal pitch and determine there is no blockage or restriction, leakage, corrosion or other unsafe condition.

c)Insofar as is practical, close all building doors and windows and all doors between the space in which the appli- ances remaining connected to the common venting system are located and other spaces of the building. Turn on clothes dryers and any appliance not connected to the common vent system. Turn on any exhaust fans, such as range hoods and bathroom exhausts, so they will operate at maximum speed. Do not operate summer exhaust fan. Close fireplace dampers.

d)Place in operation the appliances being inspected. Follow the manufacturers instructions for lighting each appli- ance. Adjust thermostat so appliance will operate continuously.

e)Test for natural draft (negative pressure) 12" above the outlet elbow after 5 minutes of main burner operation. Use the flame of a match or candle, or smoke from a cigarette, cigar or pipe, toilet paper trick.

f)After it has been determined that each appliance remaining connected to the common venting system properly vents when tested as outlined above, return doors, windows, exhaust fans, fireplace dampers and other gas burning appliances to their previous conditions of use.

g)Any improper operation of the common venting system should be corrected so that the installation conforms with the latest edition of the National Fuel Gas Code, ANSI Z223.1, in Canada, the latest edition of CAN/CGA-B 149.1 and .2 Installation Code for Gas Burning Appliances and Equipment. When re-sizing any portion of the common venting system, the common venting system should be re-sized to approach the minimum size as deter- mined using the appropriate tables in Appendix G in the latest edition of the National Fuel Gas Code, ANSI Z223.1, in Canada, Appendix B of the latest edition of the Installation Code for Gas Burning Appliances and Equipment.

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Raypak 500, 750, 1000 installation instructions
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1000, 750, 500 specifications

Raypak is a renowned name in the heating industry, particularly known for its high-quality pool and spa heaters. Among their extensive product line, the Raypak 850, 500, 300, 400, and 700 models stand out for their reliability, efficiency, and cutting-edge technologies. Each model is designed to cater to different needs and applications while maintaining Raypak’s commitment to performance.

The Raypak 850 is designed for larger commercial pools or residential setups requiring high output. With a powerful heat exchanger made from copper and bronze, it ensures superior heat transfer and longevity. Its digital control system provides precise temperature regulation, enhancing user experience. Moreover, it features a durable construction with weather-resistant materials, ensuring lasting performance in various environments.

The Raypak 500 model offers a balance between efficiency and compactness. It features eco-friendly technology that reduces energy consumption without sacrificing performance. The integrated thermostat allows users to maintain consistent water temperatures, making it ideal for residential pools. This model is well-regarded for its user-friendly digital display, simplifying operation and monitoring.

For those needing a more moderate capacity, the Raypak 300 is an efficient choice. It combines robust engineering with an easy-to-use interface. Its advanced ignition system improves reliability while minimizing energy waste. The Raypak 300’s compact design allows for easy installation in various spaces, making it an excellent option for smaller pools.

The Raypak 400 heats water quickly and efficiently, making it suitable for both residential pools and spas. It features a high-capacity heating system that ensures optimal performance. With a clear LED display, users can easily monitor their settings, while the integrated diagnostics provide real-time feedback for maintenance and troubleshooting.

Lastly, the Raypak 700 model is known for its versatility and robust performance. It is equipped with advanced safety features, including a high limit switch and water flow detection mechanism, to ensure safe operation. The model's energy-efficient design enhances its eco-friendliness, making it a popular choice among environmentally conscious users.

Collectively, these Raypak models exemplify superior engineering, performance, and user-friendliness. Their innovative features ensure that they meet the varied demands of pool owners while providing reliable heating solutions for leisure and relaxation. Whether for commercial or residential use, the Raypak 850, 500, 300, 400, and 700 offer unmatched quality and efficiency.
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