Raypak 751 manual Vertical Direct Venting System Installation, Vertical Direct Vent Termination

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Vertical Direct Venting System Installation

These installations utilize the boiler mounted blower to draw combustion air from outdoors and uses the natu- ral buoyancy of the heated flue products to create a thermal driving head that expels the exhaust gases from the flue. The negative draft must be within the range of -0.01 in. to -0.08 in. WC to ensure proper operation.

The vent material must be in accordance with the above instructions for vent materials. Vent material must be listed by a nationally recognized test agency.

The maximum and minimum venting length for Category I appliance shall be determined per the lat- est edition of the National Fuel Gas Code (U.S.) and CSA B149 Installation Code (Canada).

The diameter of vent flue pipe should be sized accord- ing to part 11 of the latest edition of the National Fuel Gas Code (U.S.) and part 7 and Appendix B of CSA B149 Installation Code (Canada). The flue pipe diam- eter for conventional negative draft venting using double-wall B type vent is 12” for the ADB 1501.

The connection from the appliance vent to the stack must be as direct as possible and should be the same as or larger than the vent outlet. The vent must be installed to prevent accumulation of condensate and, where necessary, have means provided for drainage of condensate. The horizontal breaching of a vent must have an upward slope of not less than 1/4 inch per linear foot from the boiler to the vent terminal.

The horizontal portions of the vent shall also be sup- ported for the design and weight of the material employed to maintain clearances and to prevent phys- ical damage or separation of joints.

Vertical Direct Vent Termination

The vent terminal should be vertical and should termi- nate outside the building at least two (2) feet above the highest point of the roof within 10 feet. The vent cap should have a minimum clearance of four (4) feet hor- izontally from and in no case above or below (unless a four (4) foot horizontal distance is maintained) electric meters, gas meters, regulators and relief equipment.

The distance of the vent terminal from adjacent public walkways, adjacent buildings, open windows and building openings must be consistent with the National Fuel Gas Code, or in Canada, the latest edition of CSA B149 Installation Code for Gas Burning Appliances

and Equipment. Gas vents supported only by flashing and extended above the roof more than five feet should be securely guyed or braced to withstand snow and wind loads.

The vertical direct vent cap is designed for roof top mounting only. The air inlet opening MUST be installed one (1) foot above the roof line or above normal snow levels that might obstruct combustion air flow. This dimension is critical to the correct operation of the boil- er and venting system and reduces the chance of blockage from snow. The vent cap must have a mini- mum 3 foot vertical clearance above the air inlet opening.

Fig. 25: Vertical Venting with Add-on Condensing Heat

Exchanger (Category IV) Domestic Water

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Contents Advanced Design Boiler Page Contents Pay Attention to These Terms Product Receipt Before InstallationInstallations at Elevation Model IdentificationComponent Locations Component LocationsGeneral Safety Time/Temperature Relationships in ScaldsIndoor Installations InstallationInstallation Codes Equipment BaseIndoor Units Outdoor InstallationsCombustion and Ventilation Air Direct VentInstallations1 Canadian Installations2 Canadian Installations InstallationsConventional Combustion Air Supply Water Piping Low Temperature SystemTemperature & Pressure Gauge GeneralHydronic Heating Single Boiler Primary/Secondary Piping Dual Boiler Piping Domestic HOT Water Piping Single Boiler Domestic Hot Water with One Storage Tank Page Winterizing Your Heater Pool HeatingAutomatic Chlorinators and Chemical Feeders Pool and Spa Water ChemistrySingle Boiler Pool Application GAS Supply Connections Double Boiler Pool ApplicationGas Supply Connection Gas Supply PressureElectrical Power Connections Field Wiring Connections Electrical Connections Domestic Hot WaterVenting Connections General Definition of Appliance CategoriesVent Terminal Location Venting Installation Tips Venting ConfigurationsADB-1501 Natural Draft Vertical Venting System Installation Natural Draft Vertical Vent TerminationADB-1501 Horizontal Thru-wall Direct Vent Termination Horizontal Thru-Wall Direct Venting/Combustion Air CategoryÁDB-1501 Vertical Direct Venting/Combustion Air Category Vertical Direct Venting System Installation Vertical Direct Vent TerminationContact the manufacturer for details Horizontal Thru-wall Venting System Category IV Installation PVC, ABS Page Galvanized ADB-751 Venting Material e.g Subtract 10 ft per Condensate Drain Condensate Trap AlignmentControls Central Point Wiring CPWCPW Board Blower Fan Pre-purge Pump Turn-off DelayFreeze Protection Feature Blower Fan Post-purgeDiagnostics Board Light Color IndicationWiring Diagram Figure L-2High Limit Auto Reset Flow SwitchHigh Limit Manual Reset Ignition Control ModuleLow Water Cut Off Optional High and Low Gas Pressure Switches Manual ResetPRE-START-UP Fill the SystemPre-Start-up Check Blower T Fitting DetailTools Needed ADB Initial START-UPPreparation for Start-up Page Post START-UP Check Main Burner AdjustmentSafety Inspection Follow-upOperation MaintenanceSuggested Minimum Maintenance Schedule Operating InstructionsDaily Connecting the Condensing Heat Exchanger CHXCleaning Boiler Heating Surfaces MonthlyVent Switch Adjustment Connecting Add-on Condensing Heat Exchanger to ADBAppendix Inside Combustion Air ContaminationEmissions Settings and Test Information Bluff Head Body Burner Warranty

751 specifications

The Raypak 751 is a high-efficiency, gas-powered pool and spa heater renowned for its advanced technology and durability. Designed with innovative features, the Raypak 751 prioritizes user convenience and energy efficiency, making it an excellent choice for pool owners seeking reliable heating solutions.

One of the standout features of the Raypak 751 is its robust heat exchanger, built from the finest materials to ensure long-lasting performance. This model utilizes a copper heat exchanger which is highly conductive, allowing for rapid heating of water and maintenance of consistent temperatures. Its design also minimizes scale buildup, extending the longevity of the heater.

The Raypak 751 is equipped with advanced digital controls that make it user-friendly. The intuitive interface allows for precise temperature settings and monitoring, ensuring optimal performance. Additionally, the heater features a temperature display that provides real-time updates, giving users peace of mind when adjusting their pool's environment.

Energy efficiency is a hallmark of the Raypak 751, thanks to its low NOx burner technology. This feature meets stringent environmental regulations while also lowering operational costs. By optimizing fuel usage, the heater not only contributes to reducing greenhouse gas emissions but also provides a more economical heating option for pool and spa owners.

The rugged construction of the Raypak 751 is another characteristic that sets it apart. Its heavy-duty cabinet is designed to withstand the elements, ensuring reliable operation in various weather conditions. The heater is available in multiple configurations, including both natural gas and propane options, allowing for flexible installation depending on the user's needs.

Furthermore, the Raypak 751 incorporates safety features, such as an integrated pressure switch that prevents operation when water flow is insufficient. This protects both the heater and associated plumbing from damage due to overheating or dry firing.

In summary, the Raypak 751 combines cutting-edge technology with user-centric features to deliver a superior pool heating experience. Its high-efficiency performance, durable construction, and advanced safety features make it a top choice for anyone looking to enhance their pool or spa. Whether for residential or commercial applications, the Raypak 751 ensures warmth and comfort, enriching the overall swimming experience.
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