Raypak HD101, HD401 operating instructions Gas Supply Connection

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Gas Supply

Fig. 12: Single Heater — Domestic Hot Water with One Storage Tank

Gas Supply Connection

DANGER: Make sure the gas on which the heater will operate is the same type as specified on the heater’s rating plate.

Gas piping must have a sediment trap ahead of the heater gas controls, and a manual shut-off valve locat- ed outside the heater jacket. A pounds to inches regulator must be installed to reduce the natural gas supply pressure to under 10.5 in. WC (13.0 in. WC for propane gas). The regulator should be placed a mini- mum distance of 10 times the pipe diameter upstream of the heater gas controls. All gas piping must be test- ed after installation in accordance with local codes. The heater and its gas connection must be leak-tested before placing it in operation.

CAUTION: The heater and its manual shutoff valve must be disconnected from the gas supply during any pressure testing of the gas supply system at test pressures in excess of 1/2 psi (3.45 kPa). The heater must be isolated from the gas supply piping system by closing the manual shutoff valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1/2 psi. Relieve test pressure in the gas supply line before reconnecting the heater and its manual shut off valve to the gas supply line. FAILURE TO FOLLOW THIS PROCEDURE MAY DAMAGE THE GAS VALVES. Over pressurized gas valves are not covered by warranty. The heater and its gas connections shall be leak tested before placing the appliance in operation. Use soapy water for leak test: DO NOT use open flame.

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Contents Installation & Operating Instructions Deletions None Contents Are important but not related to personal injury hazards Installations at Elevation Before InstallationProduct Receipt Model IdentificationComponent Locations Angle View Component LocationsQuantity of Burners Vent Size Flue General InformationWater Time to Produce Serious Temp Burn General SafetyTime/Temperature Relationships in Scalds Installation Codes InstallationIndoor/Closet Installations Equipment BaseMinimum Installed Service Clearance Outdoor Installations Outdoor InstallationsConventional Combustion Air Supply Combustion and Ventilation AirGeneral Installations in CanadaWater Piping Relief Valve Piping Reversing Water ConnectionsHydronic Heating Maximum 4 times the pipe diameter or 12, whichever is less Piping-Heating Boilers Domestic Hot Water PipingThree-Way Valves Air-Separation/Expansion TankGas Supply Connection Gas SupplyGas Pressure Regulator Electrical Power ConnectionsGas Supply Pressure Heater transformer. do not attach line voltage toSurge Protection Check the Power SourceMaking the Electrical Connections Table H Maximum Equivalent Pipe LengthConduit should not be used as the ground. There Electrical Connections Domestic Hot WaterDefinition of Appliance Categories VentingVent Terminal Location Barometric DamperSupport of Vent Stack Table J Vent/Air Inlet Termination Clearances US Installations Venting Configurations Venting Installation TipsNatural Draft Vertical Vent Termination Natural Draft Vertical Venting System InstallationInches Length feet Appliance CertifiedHorizontal Thru-wall Direct Vent Termination Combustion Air Inlet ModelVenting Air Intake Category Inches LengthMin./Max. Vertical Combustion Air Inlet Model Appliance CertifiedVenting Height feet Length Material Inches Min Max FeetVertical Direct Vent Termination Outdoor InstallationVertical Direct Vent System Installation High Limit Auto Reset Optional High Limit Manual ResetControls Ignition Control ModuleLow Water Cut Off Optional Flow SwitchHigh and Low Gas Pressure Switches Optional Wiring DIAGRAM-MODELS HD101-HD401 HD101-HD401 Troubleshooting Initial START-UP PRE-START-UPPage Start-Up Main Burner AdjustmentGas Type Conversion on Valve Safety InspectionAir Filter Inspection/Removal Post START-UP CheckFollow-Up Remove the Screws and Panel Heat Exchanger RemovalMaintenance Schedule MaintenanceSuggested Minimum Yearly Beginning of each heatingInside Combustion Air Contamination AppendixDaily MonthlyPage Important Instructions for the Commonwealth of Massachusetts 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.