Raypak 751 manual Horizontal Thru-wall Direct Vent Termination

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Horizontal Thru-wall Direct Venting System (Category III) Installation

These installations utilize the boiler-mounted blower to vent the combustion products to the outdoors. Combustion air is taken from inside the room and the vent is installed horizontally through the wall to the out- doors. Adequate combustion and ventilation air must be supplied to the boiler room in accordance with the National Fuel Gas Code or, in Canada, the latest edi- tion of CSA B149 Installation Code for Gas Burning Appliances and Equipment.

The total length of the thru-wall exhaust vent system cannot exceed sixty-five (65) feet in length for the flue outlet. Each elbow used is equal to ten (10) feet of straight pipe. This will allow installation in one of the four following combinations:

·65′ of straight flue pipe.

·55′ of straight flue pipe and one elbow.

·45′ of straight flue pipe and two elbows.

·35′ of straight pipe and three elbows.

The direct vent cap is not considered in the overall length of the venting system. The vent must be installed to prevent the flue gas leakage. Care must be taken during assembly to ensure that all joints are sealed properly and are airtight.

The vent must be installed to prevent the potential accumulation of condensate in the vent pipes. It is rec- ommended that:

a)The vent be installed with a slight downward slope of not more than 1/4" per foot of horizontal run to the vent terminal.

b)The vent be insulated through the length of the horizontal run.

For appliances installed in extreme cold climate, it is recommended that:

a)The vent be installed with a slight upward slope of not more than 1/4" per foot of horizontal run to the vent terminal. In this case, an approved conden- sate trap must be installed per applicable codes.

b)The vent be insulated through the length of the horizontal run.

Horizontal Thru-wall Direct Vent Termination

The direct vent cap MUST be mounted on the exterior of the building. The direct vent cap cannot be installed in a well or below grade. The direct vent cap must be installed at least one (1) foot above ground level and above normal snow levels. The Raypak supplied direct vent cap must be used.

WARNING: No substitutions of flue pipe or vent cap material are allowed. Such substitutions would jeopardize the safety and health of inhabitants.

WARNING: For common vent installations, contact the factory.

The Stainless Steel direct vent cap must be fur- nished by the boiler manufacturer in accordance with its listing.

Fig. 23: Horizontal Thru-Wall Direct

Venting/Combustion Air

(Category III)

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Contents Advanced Design Boiler Page Contents Pay Attention to These Terms Model Identification Before InstallationInstallations at Elevation Product ReceiptComponent Locations Component LocationsTime/Temperature Relationships in Scalds General SafetyEquipment Base InstallationInstallation Codes Indoor InstallationsDirect Vent Outdoor InstallationsCombustion and Ventilation Air Indoor UnitsInstallations1 Canadian Installations2 Canadian Installations InstallationsConventional Combustion Air Supply General Low Temperature SystemTemperature & Pressure Gauge Water PipingHydronic Heating Single Boiler Primary/Secondary Piping Dual Boiler Piping Domestic HOT Water Piping Single Boiler Domestic Hot Water with One Storage Tank Page Pool and Spa Water Chemistry Pool HeatingAutomatic Chlorinators and Chemical Feeders Winterizing Your HeaterSingle Boiler Pool Application Double Boiler Pool Application GAS Supply ConnectionsGas Supply Pressure Gas Supply ConnectionElectrical Power Connections Electrical Connections Domestic Hot Water Field Wiring ConnectionsGeneral Definition of Appliance Categories Venting ConnectionsVent Terminal Location Venting Configurations Venting Installation TipsADB-1501 Natural Draft Vertical Vent Termination Natural Draft Vertical Venting System InstallationADB-1501 Horizontal Thru-Wall Direct Venting/Combustion Air Category Horizontal Thru-wall Direct Vent TerminationÁDB-1501 Vertical Direct Venting/Combustion Air Category Vertical Direct Vent Termination Vertical Direct Venting System InstallationContact 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 Trap Alignment Condensate DrainControls Central Point Wiring CPWCPW Board Blower Fan Post-purge Pump Turn-off DelayFreeze Protection Feature Blower Fan Pre-purgeLight Color Indication Diagnostics BoardFigure L-2 Wiring DiagramIgnition Control Module Flow SwitchHigh Limit Manual Reset High Limit Auto ResetFill the System High and Low Gas Pressure Switches Manual ResetPRE-START-UP Low Water Cut Off OptionalBlower T Fitting Detail Pre-Start-up CheckTools Needed ADB Initial START-UPPreparation for Start-up Page Follow-up Main Burner AdjustmentSafety Inspection Post START-UP CheckOperating Instructions MaintenanceSuggested Minimum Maintenance Schedule OperationMonthly Connecting the Condensing Heat Exchanger CHXCleaning Boiler Heating Surfaces DailyConnecting Add-on Condensing Heat Exchanger to ADB Vent Switch AdjustmentInside Combustion Air Contamination AppendixEmissions 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.

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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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