Raypak 902B, 302B manual Support of Vent Stack, Vent Terminal Location

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CAUTION: When condensate traps are installed, condensate must be routed to an appropriate container for neutralization before disposal, as required by local codes.

WARNING: Contact the manufacturer of the vent material if there is any question about the appliance categorization and suitability of a vent material for application on a Category III or IV vent system. Using improper venting materials can result in personal injury, death or property damage.

Support of Vent Stack

The weight of the vent stack or chimney must not rest on the heater vent connection. Support must be pro- vided in compliance with applicable codes. The vent should also be installed to maintain proper clearances from combustible materials.

Use insulated vent pipe spacers where the vent pass- es through combustible roofs and walls.

Vent Terminal Location

NOTE: During winter months check the vent cap and make sure no blockage occurs from build-up of snow or ice.

1.Condensate can freeze on the vent cap. Frozen condensate on the vent cap can result in a blocked flue condition.

2.Give special attention to the location of the vent termination to avoid possibility of property dam- age or personal injury.

3.Gases may form a white vapor plume in winter. The plume could obstruct a window view if the ter- mination is installed near windows.

4.Prevailing winds, in combination with below-freez- ing temperatures, can cause freezing of condensate and water/ice build-up on buildings, plants or roofs.

5.The bottom of the vent terminal and the air intake shall be located at least 12 in. above grade, includ- ing normal snow line.

6.Un-insulated single-wall metal vent pipe shall not be used outdoors in cold climates for venting gas- fired equipment.

7.Through-the-wall vents for Category II and IV appliances and non-categorized condensing appli- ances shall not terminate over public walkways or over an area where condensate or vapor could create a nuisance or hazard or could be detrimen- tal to the operation of regulators, relief valves, or other equipment. Where local experience indi- cates that condensate is a problem with Category I and III appliances, this provision shall also apply.

Combustion

Air Supply

Exhaust

Configuration

Heater Venting

Category

Certified Materials

Combustion Air

Inlet Material

 

Vertical Natural

I

“B” Vent

 

 

From Inside Building

Draft Venting

 

 

 

 

 

 

(Non-Direct Venting)

Horizontal Through-

III

Stainless Steel

 

 

 

 

 

 

the-Wall Venting

(Gas Tight)

 

 

 

 

 

 

 

Vertical Natural

I

“B” Vent

Galvanized Steel

From Outside Building

Draft Venting

 

PVC

 

 

 

(Direct Venting)

Horizontal Through-

III

Stainless Steel

 

ABS

 

 

CPVC

 

the-Wall Venting

(Gas Tight)

 

 

 

 

 

 

 

 

 

 

 

Table M: Venting Category Requirements

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Contents Installation & Operating Instructions Deletions None Contents Pay Attention to These Terms Product Receipt Before InstallationInstallations at Elevation Model IdentificationComponent Locations Component Locations BackGeneral Information Water Time to Produce Serious Temp Burn General SafetyTime/Temperature Relationships in Scalds Equipment Base InstallationInstallation Codes StackingClearances Indoor InstallationsOutdoor Installations Ft 91 cm within a Reversing Air Filter Combustion and Ventilation AirIndoor Units Direct VentTruSeal Combustion Air InstallationsConventional Combustion Air Supply All Air from Inside the BuildingGeneral Canadian InstallationsWater Piping Reversing Water ConnectionsRelief Valve Piping Hydrostatic Test Cold Water OperationPump Selection Temperature & Pressure GaugeHydronic Heating Cold Water StartsAir-Separation/Expansion Tank Pressure Drop in Feet of Head Feedwater RegulatorPiping Three-Way ValvesPotable Water and Space Heating Pool HeatingPool/Spa Water Chemistry Automatic Chlorinators and Chemical FeedersWinterizing Your Heater Water HardnessPH of Water Total Dissolved SolidsModel Gas SupplyGas Supply Connection Table K Maximum Equivalent Pipe LengthField-Connected Controllers Electrical Power ConnectionsGas Supply Pressure Making the Electrical Connections Field Wiring ConnectionCheck the Power Source Stage Tankstat Model Diameter Order Number VentingFlue Exhaust Tee Appliance CategoriesSupport of Vent Stack Vent Terminal LocationChanging the Flue Outlet InstallationsCanadian Installations Installation Venting Installation TipsVenting Configurations Natural Draft Vertical Venting CategoryCertified Vertical Venting Combustion Air Air Inlet TerminationCommon Venting System HeightHorizontal Through-the-Wall Venting Category Horizontal Through-the-Wall Venting CategoryVenting Direct Vent Horizontal Through- the-WallModel Certified Maximum Combustion Air Inlet EquivalentDirect Vent Vertical Direct Vent VerticalFreeze Protection Outdoor InstallationControls Heater Sequence of Operation Models 302B-902BExternal Lights Color Indication Ignition Module Code ConditionHigh and Low Gas Pressure Switches High Limit Manual ResetFlow Switch Low Water Cut-Off OptionalPump Time Delay UDB Diagnostic BoardUDB Fault History Table R UDB Fault Messages Venting Appliance Categories 87%-Efficiency Boilers Special InstructionsWater Piping Model 10F 20F 30F Min. Flow Max Flow GpmCondensate Management Vertical Venting CategoryVent Terminal Location Certified Maximum Combustion Air Air Inlet Model Venting 752BE Combustion Air 902BE 30’ 80’Direct Vent Horizontal Through- the-Wall ABS Cpvc Wiring Diagram START-UP Pre Start-upStart-Up Blower AdjustmentMain Burner Adjustment Follow-Up Safety InspectionLeak Test Procedure Dual-Seat Gas Valves Pilot Turn-Down TestPost Start-Up Check Leak TestTo Turn Off Gas To Appliance OperationLighting Instructions Troubleshooting StepPreventive Maintenance Schedule MaintenanceSuggested Minimum Maintenance Schedule Annually WeeklySemi-Annually As RequiredAppendix Inside Air ContaminationLimited Parts Warranty HI Delta Types H and WH Limited Parts Warranty HI Delta Type P START-UP Checklist for FAN-ASSISTED Raypak Products Important Instructions for the Commonwealth of Massachusetts
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302B, 902B specifications

Raypak is a prominent name in the heating industry, particularly known for its advanced technology and robust design in residential and commercial heating solutions. Two of their notable models, the Raypak 302B and 402B, exemplify innovation and efficiency in hydronic heating systems, designed to meet diverse needs while ensuring optimal performance.

The Raypak 302B and 402B are high-efficiency boilers that utilize gas-fueled systems. The 302B model has a heating capacity of 302,000 BTU/h, while the 402B boasts a maximum capacity of 402,000 BTU/h. This range of heating output makes these models suitable for a variety of applications, from residential heating needs to larger commercial spaces that require a reliable heat source.

One of the standout features of the Raypak 302B and 402B is their use of fire-tube heat exchanger technology. This design promotes efficient heat transfer and allows for lower emissions, thus minimizing the environmental impact. The fire-tube design also contributes to a longer lifespan and reduced maintenance costs, making these boilers a cost-effective solution over time.

Equipped with advanced control systems, the Raypak 302B and 402B ensure precise temperature regulation and improved energy usage. The digital display provides real-time feedback and diagnostics, enhancing user experience and simplifying troubleshooting. These models are also compatible with various building management systems, providing users with versatility in integration to optimize building performance.

In addition to their technological advancements, these boilers are designed with user safety and convenience in mind. They include features such as built-in safety controls, easy access for service and maintenance, and a compact footprint to fit into tight spaces. Their robust construction ensures durability, which is crucial for systems that operate under high demand.

Moreover, both models have been engineered to succeed in various climates, making them reliable choices for users in diverse geographical locations. With their energy-efficient operation, reliable performance, and advanced features, the Raypak 302B and 402B embody quality and innovation in the heating market, ensuring comfortable environments while lowering energy costs and environmental footprints.
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