Raypak HD101, HD401 manual Heat Exchanger Removal, Remove the Screws and Panel

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3. Remove the (4) screws holding the panel in place.

Fig. 33: Remove the Screws and Panel

4.Pull the air filter out for inspection. Replace if nec- essary.

Fig. 34: Inspect the Air Filter

5.When replacing, note the direction of the air flow defined on the side of the filter. The arrow should be pointing downward.

6.Replace the panel and screws before operating.

Heat Exchanger Removal

Refer to Fig. 35 for the following procedure.

1.Before beginning, make sure the heater is cool to the touch. Shut water, gas and electricity off, close valves and relieve pressure, then remove the relief valve. Remove side inspection panels.

2.Remove screw behind inspection panels holding the jacket top down.

3.Remove the front panel. Remove two additional screws holding the jacket top to the top support.

4.Disconnect vent pipe from the flue exhaust and set aside.

5.Remove jacket top, then disconnect vent switch hose.

6.Remove two rows of screws holding the flue col- lector to the combustion chamber. Remove two additional screws located on the front combustion panel. Cut any silicone holding the flue collector and heat exchanger in place.

7.Carefully lift and remove the flue collector.

8.Lift heat exchanger straight up being careful not to damage the refractory.

9.Reverse the above procedure to re-install. Make sure sufficient high temperature silicone sealant (RTV) is placed along the vertical sides of the tube sheet and flue collector.

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Contents Installation & Operating Instructions Page Contents Are important but not related to personal injury hazards Ratings and Certifications Installations at ElevationProduct Receipt Component Locations Angle View Component LocationsModel Quantity 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 BaseHeater Side Minimum Installed Outdoor InstallationsConventional Combustion Air Supply Combustion and Ventilation AirGeneral Installations in CanadaWater Piping Relief Valve Piping Reversing Water ConnectionsHydronic Heating Dual Boiler-Primary/Secondary Piping Piping-Heating Boilers Domestic Hot Water PipingAir-Separation/Expansion Tank Three-Way ValvesGas Supply Connection Gas SupplyTable G Maximum Equivalent Pipe Length Gas Supply PressureGas Pressure Regulator Check the Power Source Electrical Power ConnectionsSurge Protection Making the Electrical ConnectionsStage Tankstat Electrical Connections Domestic Hot WaterDefinition of Appliance Categories VentingVent Terminal Location Barometric DamperSupport of Vent Stack Table I Vent/Air Inlet Termination Clearances US Installations Venting Configurations Venting Installation TipsCertified Minimum Model Appliance Barometric Damper feetNatural Draft Vertical Vent Termination Natural Draft Vertical Venting System InstallationCategory Inches Length feet Model Appliance Certified Vent Size Max. VentingHorizontal Thru-wall Direct Vent Termination Venting Air Intake Certified Max Combustion Air Inlet Max. Air ModelCategory Inches Length FeetInches Feet Material Inches Min MaxVertical 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 HD Troubleshooting Initial START-UP PRE-START-UPPage Start-Up Main Burner AdjustmentGas Valve Adjustment Gas Type Conversion on Valve Safety InspectionAir Filter Inspection/Removal Post START-UP CheckFollow-Up Remove the Screws and Panel Heat Exchanger RemovalYearly Beginning of each heating season MaintenanceSuggested Minimum Maintenance Schedule Inside Combustion Air Contamination AppendixDaily 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.