Raypak 300 Hydronic Heating, Relief Valve Installation and Piping, Temperature & Pressure Gauge

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Relief Valve Installation and Piping

Relief Valve Installation and Piping

WARNING: Pressure relief valve discharge piping must be piped near the floor and close to a drain to eliminate the potential of severe burns. Do not pipe to any area where freezing could occur. Refer to local codes.

The heater is supplied with a Section IV “HV” stamped relief valve sized for the full input of the unit. The relief valve assembly is shipped loose and must be mount- ed directly to the heater outlet. No valve shall be installed between the heater and the relief valve. The relief valve shall be mounted with its spindle vertical (see Fig. 1, 2 and 3 on page 6). Relief valve discharge piping shall provide no less than the cross sectional area of the relief valve outlet and must be routed to a safe point of discharge. Installation must comply with all national, state and local codes.

WARNING: The pressure relief valve must be installed at the outlet of the boiler. No valve is permitted to be installed between the boiler and the relief valve.

Temperature & Pressure Gauge

The temperature and pressure gauge is shipped loose for field installation and must be installed within 12 inches of the boiler outlet (if possible) in an easily readable location. Installation must comply with ASME Section IV as well as all applicable national, state and local codes.

Hydrostatic Test

Unlike many types of heaters, this heater does not re- quire hydrostatic testing prior to being placed in operation. The heat exchanger has already been fac- tory-tested and is rated for 160 psi operating pressure. However, Raypak does recommend hydrostatic test- ing of the piping connections to the heater and the rest of the system prior to operation. This is particularly true for hydronic systems using expensive glycol- based anti-freeze. Raypak recommends conducting the hydrostatic test before connecting gas piping or electrical supply.

Leaks must be repaired at once to prevent damage to the heater. NEVER use petroleum-based stop-leak compounds.

To perform hydrostatic test:

1.Connect fill water supply. With bleed valve open, fill heater with water. When water flows from bleed valve, shut off water. Close bleed valve. Carefully fill the rest of the system, making sure to eliminate any entrapped air by using high-point vents. Close feed valve. Test at standard operating pressure for at least 24 hours.

2.Make sure constant gauge pressure has been maintained throughout test.

3.Check for leaks. Repair if found.

Hydronic Heating

Pump Selection

In order to ensure proper performance of your heater system, you must install a correctly-sized pump. Ray- pak recommends designing for a ∆T within the range of 20°F to 40°F (5°C to 20°C). See Table G for accept- able flow rates for each model (∆T is the temperature difference between the inlet and outlet water when the heater is firing at full rate).

Feedwater Regulator

Raypak recommends that a feedwater regulator be in- stalled and set at 12 psi minimum pressure at the highest point of the system. Install a check valve or back flow device upstream of the regulator, with a manual shut-off valve as required by local codes.

Piping

All high points should be vented. A heater installed above radiation level must be provided with a low wa- ter cut-off device (sales order option F-10). This heater, when used in connection with a refrigeration system, must be installed so that the chilled medium is piped in parallel with the heater with appropriate valves to prevent the chilled medium from entering the heater.

The piping system of a hot water heater connected to heating coils located in air handling units where they may be exposed to circulating refrigerated air, must be equipped with flow control valves or other automatic means to prevent gravity circulation of the heater water during the cooling cycle. It is highly recommend- ed that the piping be insulated.

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Contents Do not try to light any appliance WHAT TO DO IF YOU SMELL GASINSTALLATION & OPERATING INSTRUCTIONS Models 300, 500 & Types H & WPage BEFORE INSTALLATION CONTENTSGENERAL SAFETY INSTALLATION WIRING DIAGRAM START-UPPay Attention to These Terms WARNINGSInstallations at Elevation BEFORE INSTALLATIONProduct Receipt Model IdentificationGeneral Information Component LocationsTime/Temperature Relationships in Scalds GENERAL SAFETYInstallation Codes INSTALLATIONIndoor Installations Outdoor InstallationsIndoor Units Combustion and Ventilation AirCanadian Installations2 U.S. Installations1Table F Vent/Air Inlet Termination Clearances Conventional Combustion Air Supply U.S. InstallationsCombustion Air Filter Direct VentWater Piping Canadian InstallationsGeneral Hydronic Heating Relief Valve Installation and PipingTemperature & Pressure Gauge Hydrostatic TestThree-WayValves Air-Separation/ExpansionTankDomestic Hot Water Potable Water and Space Heating Gas Supply Gas Supply ConnectionGas Supply Pressure Electrical Power Connections Making the Electrical Connections Check the Power SourceField-ConnectedControllers Wiring the Thermostat Field Wiring ConnectionsWiring the Indirect Sensor Wiring the Outdoor SensorWiring the Cascade System Communication Bus 3.Create a hole to route the communication cables through where the dimples are in the side of the cabinet see Fig. 15, or route the wires to the rear junction box and out of the cabinet Cascade Master Pump and Sensor Wiring Venting Cascade Follower Pump and Sensor WiringGeneral Vent Terminal Location Support of Vent StackConfiguration CombustionVenting Configurations Venting Installation TipsVertical Venting Category Combustion Common Venting Volume ofModel No Vent SizeVenting Category Horizontal Through-the-WallDirectFig. 21 Typical Common Venting Fig. 22 Horizontal Through-the-WallVentingTermination InstallationModel No Approved IntakesDirect Vent-Vertical Freeze Protection Outdoor InstallationHigh Limit - Auto Reset Optional High Limit - Manual ResetControls Ignition Control FunctionsHigh & Low Gas Pressure Switches Optional Flow SwitchBlocked Vent Switch Low Water Cut-OffOptionalOperating Instructions Adjusting the XFyre SetpointBlocked Condensate Drain Sensor User MenuStatus Menu Service ModeStatus Menu 1 Items Status Menu 2 Items Installer Menu Items continued Installer Menu WIRING DIAGRAM START-UP For Your SafetyPre Start-up Pre Start-upCheckStart-Up PreparationBlower Check Manifold Check Safety InspectionFinishing Follow-UpLighting Instructions OPERATIONPost Start-UpCheck XFyre Error Codes TROUBLESHOOTINGHeater Errors Heater FaultsXFyre Fault Text FLUE / GAS PRESS F01 RemedyTemperature Sensors Sensor Resistance ValuesResistance ohms OutdoorSuggested Minimum Maintenance Schedule MAINTENANCEPreventive Maintenance Schedule DailySemi-Annually WeeklyAnnually As RequiredNIOSH stated First Aid Combustion Chamber Coil Cleaning InstructionsInside Air Contamination APPENDIX248 CMR 5.082a1 through HEAT EXCHANGER WARRANTY LIMITED PARTS WARRANTY XFYRE - TYPE H and WMODELS SCOPEEMISSIONS SETTINGS AND TEST INFORMATION START-UPCHECKLIST FOR THE XFYRENominal Factory Recommended Settings GAS SUPPLY DATA
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300, 850 specifications

Raypak is a renowned name in the heating industry, particularly known for its high-quality pool and spa heaters. Among their extensive product line, the Raypak 850, 500, 300, 400, and 700 models stand out for their reliability, efficiency, and cutting-edge technologies. Each model is designed to cater to different needs and applications while maintaining Raypak’s commitment to performance.

The Raypak 850 is designed for larger commercial pools or residential setups requiring high output. With a powerful heat exchanger made from copper and bronze, it ensures superior heat transfer and longevity. Its digital control system provides precise temperature regulation, enhancing user experience. Moreover, it features a durable construction with weather-resistant materials, ensuring lasting performance in various environments.

The Raypak 500 model offers a balance between efficiency and compactness. It features eco-friendly technology that reduces energy consumption without sacrificing performance. The integrated thermostat allows users to maintain consistent water temperatures, making it ideal for residential pools. This model is well-regarded for its user-friendly digital display, simplifying operation and monitoring.

For those needing a more moderate capacity, the Raypak 300 is an efficient choice. It combines robust engineering with an easy-to-use interface. Its advanced ignition system improves reliability while minimizing energy waste. The Raypak 300’s compact design allows for easy installation in various spaces, making it an excellent option for smaller pools.

The Raypak 400 heats water quickly and efficiently, making it suitable for both residential pools and spas. It features a high-capacity heating system that ensures optimal performance. With a clear LED display, users can easily monitor their settings, while the integrated diagnostics provide real-time feedback for maintenance and troubleshooting.

Lastly, the Raypak 700 model is known for its versatility and robust performance. It is equipped with advanced safety features, including a high limit switch and water flow detection mechanism, to ensure safe operation. The model's energy-efficient design enhances its eco-friendliness, making it a popular choice among environmentally conscious users.

Collectively, these Raypak models exemplify superior engineering, performance, and user-friendliness. Their innovative features ensure that they meet the varied demands of pool owners while providing reliable heating solutions for leisure and relaxation. Whether for commercial or residential use, the Raypak 850, 500, 300, 400, and 700 offer unmatched quality and efficiency.
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