Raypak HD401, HD101 manual Barometric Damper, Support of Vent Stack, Vent Terminal Location

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Combustion Air

Exhaust

Venting Category

Certified

Combustion Air

 

Supply

Configuration

Appliance Material

Inlet Material

 

 

 

 

 

 

 

 

Vertical Natural

 

Type B or any

 

 

 

I

Category I Venting

 

 

 

Draft Venting

 

 

From Inside

 

System*

 

 

 

 

 

 

Building (Non-Direct

 

 

 

 

 

Horizontal

 

 

 

 

Venting)

 

Stainless Steel

 

 

 

Thru-wall

III

 

 

 

(Gas Tight)

 

 

 

Venting

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Type B or any

 

 

 

Vertical Venting

I

Category I Venting

Galvanized Steel

 

From Outside

 

 

System*

 

 

 

PVC

 

Building (Direct

 

 

 

 

 

 

 

 

Horizontal

 

 

ABS

 

Venting)

 

Stainless Steel

 

 

CPVC

 

Thru-wall

III

 

 

 

 

(Gas Tight)

 

 

 

 

 

Venting

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*As defined in the latest edition of the NFGC, or in Canada, the B149.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Table H: Venting Category Requirements

 

 

 

 

 

 

 

Barometric Damper

A barometric damper may be required when vent heights exceed 25 feet or when the draft is greater than -0.08 in. WC. In these installations, a barometric damper (single acting) is required.

The damper should be installed NO CLOSER than 18 in. from the discharge of the unit and no closer than 18 in. from a combustible ceiling. The damper can be installed in horizontal or vertical runs of vent pipe as necessary. Installation in a bull-head tee is acceptable as shown in the NFGC.

The weights on the damper should be adjusted per the damper manufacturer’s instructions for proper opera- tion, to maintain –0.01 to –0.08 in. WC, 12 in. from the heater outlet, at all firing conditions.

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 supported to maintain proper clear- ances 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.

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 damage 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 in close proximity to 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 on cold climates for venting gas utilization equipment.

7.Through-the-wall vents for Category II and IV appliances and non-categorized condensing appli-

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Contents Installation & Operating Instructions Page Contents Are important but not related to personal injury hazards Product Receipt Installations at ElevationRatings and Certifications Component Locations Component Locations Angle ViewGeneral Information Model Quantity of Burners Vent Size FlueTime/Temperature Relationships in Scalds General SafetyWater Time to Produce Serious Temp Burn Indoor/Closet Installations InstallationInstallation Codes Equipment BaseOutdoor Installations Heater Side Minimum InstalledCombustion and Ventilation Air Conventional Combustion Air SupplyWater Piping Installations in CanadaGeneral Reversing Water Connections Relief Valve PipingHydronic Heating Dual Boiler-Primary/Secondary Piping Air-Separation/Expansion Tank Domestic Hot Water PipingPiping-Heating Boilers Three-Way ValvesGas Supply Gas Supply ConnectionGas Pressure Regulator Gas Supply PressureTable G Maximum Equivalent Pipe Length Surge Protection Electrical Power ConnectionsCheck the Power Source Making the Electrical ConnectionsElectrical Connections Domestic Hot Water Stage TankstatVenting Definition of Appliance CategoriesSupport of Vent Stack Barometric DamperVent Terminal Location Table I Vent/Air Inlet Termination Clearances US Installations Certified Minimum Venting Installation TipsVenting Configurations Model Appliance Barometric Damper feetNatural Draft Vertical Venting System Installation Natural Draft Vertical Vent TerminationModel Appliance Certified Vent Size Max. Venting Category Inches Length feetHorizontal Thru-wall Direct Vent Termination Category Inches Length Certified Max Combustion Air Inlet Max. Air ModelVenting Air Intake FeetMaterial Inches Min Max Inches FeetVertical Direct Vent System Installation Outdoor InstallationVertical Direct Vent Termination Controls High Limit Manual ResetHigh Limit Auto Reset Optional Ignition Control ModuleHigh and Low Gas Pressure Switches Optional Flow SwitchLow Water Cut Off Optional Wiring DIAGRAM-MODELS HD101-HD401 HD Troubleshooting PRE-START-UP Initial START-UPPage Gas Valve Adjustment Main Burner AdjustmentStart-Up Safety Inspection Gas Type Conversion on ValveFollow-Up Post START-UP CheckAir Filter Inspection/Removal Heat Exchanger Removal Remove the Screws and PanelSuggested Minimum Maintenance Schedule MaintenanceYearly Beginning of each heating season Daily AppendixInside Combustion Air Contamination MonthlyPage Page Page
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HD101, HD401 specifications

Raypak is renowned for its commitment to high-quality heating solutions, with the HD101 and HD401 models standing out in their product range. These units are designed specifically for commercial applications, providing reliable and efficient hydronic heating systems. The HD series embodies innovation while addressing the unique demands of larger spaces.

One of the main features of the HD101 and HD401 is their stainless steel construction, which ensures increased durability and resistance to corrosion. This design choice enhances the longevity of the units, making them ideal for various installations in commercial or industrial settings.

Both models are equipped with a high-efficiency heat exchanger that maximizes heat transfer while minimizing energy consumption. This feature is particularly significant in today’s environmentally conscious market, as it contributes to lower operating costs and reduced carbon footprints. The heat exchangers are engineered for easy maintenance, offering simplicity when service is required.

In terms of technology, the HD101 and HD401 include advanced digital controls that allow for precise temperature regulation. This user-friendly interface enables operators to easily manage and monitor heating parameters, facilitating optimal performance and energy management.

The models also feature modulating burners that adjust their output according to the heating demand. This capacity for modulation results in smoother operation and an overall increase in efficiency, as the burners can maintain consistent temperatures without excessive energy use.

Another noteworthy characteristic is their compatibility with various control systems, including BMS (Building Management Systems). This adaptability allows for seamless integration into existing infrastructure, providing users with greater versatility and control over their heating environments.

Both the HD101 and HD401 come with advanced safety features, including flame rollback protection and pressure monitoring, ensuring safe operation even in demanding conditions. Additionally, their compact design allows for easy installation in limited spaces while still providing powerful heating capabilities.

Ultimately, the Raypak HD101 and HD401 are exceptional choices for those in need of high-efficiency commercial heating solutions. With their robust construction, advanced technology, and user-friendly features, these models promise to deliver reliable performance and energy savings for years to come. Whether for a large facility or a specific industrial application, they stand ready to meet the heating challenges of today’s commercial landscape.