Raypak 751 manual Venting Connections, General Definition of Appliance Categories

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VENTING

CONNECTIONS

General

CAUTION: Proper installation of flue exhaust venting is critical for the safe and efficient operation of the boiler. For vent systems not shown in this section please contact your local authorized representative.

CAUTION: Stable vent pressure is critical to the safe and proper operation of the heater. A combination of barometric dampers, balancing dampers, extractors, or draft inducers may be required to stabilize the vent pressure.

Definition of Appliance Categories

Boilers are divided into four categories based on the pressure produced in the exhaust and the likelihood of condensate production in the vent.

Category I: A boiler which operates with a non-pos- itive vent static pressure and with a vent gas

temperature that avoids excessive condensate pro- duction in the vent.

Category II: A boiler which operates with a non-pos- itive vent static pressure and with a vent gas temperature that may cause excessive condensate production in the vent.

Category III: A boiler which operates with a positive vent pressure and with a vent gas temperature that avoids excessive condensate production in the vent.

Category IV: A boiler which operates with a positive vent pressure and with a vent gas temperature that may cause excessive condensate production in the vent.

See Table J for vent category requirements for the Advanced Design Boiler.

NOTE: For additional information on appliance categorization, see appropriate ANSI Z21 Standard and the latest edition Standard of National Fuel Gas Code or in Canada, the latest edition of CSA Standard B149 Installation Code for Gas Burning Appliances and Equipment, or applicable provisions of local building codes.

A

 

D

 

B

 

V

 

E

 

N

 

T

 

I

 

N

 

G

 

A

 

R

 

R

 

A

 

N

 

G

 

E

Tight

M

 

E

 

N

 

T

Tight

 

S

 

NOTE: PVC or CPVC vent may be used in conjunction with CHX, special piping arrangement has to be made. Contact manufacturer for details.

Table J: ADB Category Determination for Venting Purpose and Venting Arrangement

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Contents Advanced Design Boiler Page Contents Pay Attention to These Terms Installations at Elevation Before InstallationProduct Receipt Model IdentificationComponent Locations Component LocationsTime/Temperature Relationships in Scalds General SafetyInstallation Codes InstallationIndoor Installations Equipment BaseCombustion and Ventilation Air Outdoor InstallationsIndoor Units Direct VentInstallations1 Canadian Installations2 Canadian Installations InstallationsConventional Combustion Air Supply Temperature & Pressure Gauge Low Temperature SystemWater Piping GeneralHydronic Heating Single Boiler Primary/Secondary Piping Dual Boiler Piping Domestic HOT Water Piping Single Boiler Domestic Hot Water with One Storage Tank Page Automatic Chlorinators and Chemical Feeders Pool HeatingWinterizing Your Heater Pool and Spa Water ChemistrySingle 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 Freeze Protection Feature Pump Turn-off DelayBlower Fan Pre-purge Blower Fan Post-purgeLight Color Indication Diagnostics BoardFigure L-2 Wiring DiagramHigh Limit Manual Reset Flow SwitchHigh Limit Auto Reset Ignition Control ModulePRE-START-UP High and Low Gas Pressure Switches Manual ResetLow Water Cut Off Optional Fill the SystemBlower T Fitting Detail Pre-Start-up CheckTools Needed ADB Initial START-UPPreparation for Start-up Page Safety Inspection Main Burner AdjustmentPost START-UP Check Follow-upSuggested Minimum Maintenance Schedule MaintenanceOperation Operating InstructionsCleaning Boiler Heating Surfaces Connecting the Condensing Heat Exchanger CHXDaily MonthlyConnecting 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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