Raypak 302-902 manual Section G Pool Heating, Bypass

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SECTION G: POOL HEATING

CAUTION:

Power to the heater should be interlocked with the main system pump to make sure the heater does not fire without the main system pump in operation. Improper flow control can damage the heater. Uncontrolled flow (too high) or restricted flow (too low) can seriously damage the heater. Follow these instructions to make sure your heater is properly installed.

The Hi-Delta pool heater is equipped with an external pump and bypass arrangement that blends outlet water with the inlet to increase the inlet water temperature, thereby reducing the likelihood of condensation forming on the heat exchanger. The pump also serves to circulate water through the heater form the main system piping.

To complete the installation of the pool heater, the pool thermostat needs to be installed in the main return water line. This will insure that the heater will be energized at the right time. If the main water line is too far away from the heater and the capillary bulb will not reach it, locate the pool thermostat adjacent to the main line and run wires back to the heater. See Figure #9225.

Adjustment of the bypass valve is critical to proper operation of the heater. The bypass valve should be adjusted to achieve an inlet water temperature of 100°F and an outlet water temperature between 120°F and 140°F. When starting with a cold pool, make initial adjustments. Make final adjustments when pool water approaches desired temperature.

H BYPASS

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Contents Installation Operating Instructions Table of Contents Page Section a Before Installing the Boiler Model Identification High Delta Component Location General Information Stacking Equipment BaseBoiler Side 302-902 Boiler SizeOutdoor Installation Minimum Clearances OutdoorinstallationsCombustion and Ventilation AIR Indoor Units Direct VENT-INSTALLATONSection C Combustion and Ventilation AIR Page Temperature & Pressure Gauge LOW Temperature SystemSection D Water Piping General Reliefvalve PipingSection E Hydronic Heating Piping Fig. #9223 DUALBOILERPRIMARY/SECONDARYPIPINGSingle Domestic HOT Water Heater with ONE Storage Tank Section F Domestic HOT Water PipingPotable Water and Space Heatingapplication Bypass Section G Pool HeatingSpawater Chemistry Singlepoolheaterapplication Automatic Chlorinators and ChemicalfeedersWinterizingyour Heater GAS Supply Pressure Section H GAS Supply ConnectionsGAS Supply Connection GAS Pressure Regulator Check the Power Source Section I Electrical Power ConnectionsCheck Power Source FIELD-CONNECTEDCONTROLLERSMaking the Electrical Connections Field Wiring ConnectionShockhazard Electrical Connections Domestic HOT WaterDefinition ofAppliance Categories Section J Venting ConnectionsTable J-1 Vent Terminal Location General Support of Vent StackVenting Configurations Venting Installation TipsNatural Draft Verticalvent Section J-1 Natural Draft Vertical Venting CategoryNatural Draft Vertical Vent Termination Natural Draft Vertical Venting System InstallationPage HORIZONTALTHRU-WALLVENTING Category III Table Section J-2Fig. #9436 HI Delta Sleeve Flue ConversionHorizontal Thru-wall Direct Vent Termination HORIZONTALTHRU-WALLVENTING Table Section J-3 Direct VentHorizontal Thru-wall Direct Vent Termination Verticalventing Table Direct VentVertical Direct Vent Termination Vertical Direct Vent System InstallationHideltaoutdoorventkitandinstructions Section J-5Heater as shipped HI Delta Outdoor Vent InstructionsFinished assembly HI Delta Filter BOX Instructions HI Delta Filter BOX KITThiskitincludes Model Partnumber Filter Section K Controls HI-DELTAModel Boiler Sequence of OperationsHI-DELTAModel HI-DELTAModel902 Flow Switch High Limit Manual ResetIgnition Control Module Operating ControlLOW Water CUT OFF Optional LOW Water Cutoff High and LOW GAS Pressure SwitchesGAS Pressure Switch Wire Diagram Model Reference Drawing Number M152470-Rev. J H3/W3 Reference Drawing Number M152464-Rev R H3/HW3 Reference Drawing Number M152465 Rev-P H3/W3 TIME/TEMPERATURE Relationships in Scalds Section L General Safety PrecautionsSection M PRE-START-UP Tools Needed Section N HI-DELTA Initial START-UPPreparation for START-UP Turn Off Main Gas ValveYour Hi-Delta is tuned START-UPPilot Turn Down Test for Raypak HI Delta Boilers Leak Test Procedure DUAL-SEAT GAS ValvesPage Section O Post START-UP Check Toturn Offgastoappliance Section P OperationSuggested Minimum Maintenance Schedule Section Q MaintenanceWeekly Preventive Maintenance ScheduleSemi-Annually AnnuallyInsidecombustionaircontamination Appendix aCorporate Headquarters

302-902 specifications

The Raypak 302-902 is a highly efficient, reliable, and versatile heating solution commonly used in residential and commercial pool heating applications. Known for its exceptional performance and advanced technology, the Raypak 302-902 has become a favored choice among pool owners looking to extend their swimming season and enhance comfort.

One of the main features of the Raypak 302-902 is its robust construction. Built with a copper heat exchanger, it is designed to withstand the rigors of continuous use while offering superior heat transfer capabilities. The heat exchanger is also designed for easy maintenance, enabling pool owners to keep their systems running efficiently for years.

The Raypak 302-902 employs advanced digital controls, which provide precise temperature regulation. This modern control system allows users to set their desired water temperature with accuracy and maintain it consistently, ensuring a pleasant swimming experience. Additionally, these digital controls feature self-diagnostic capabilities, alerting users to potential issues, which aids in quick troubleshooting and maintenance.

In terms of energy efficiency, the Raypak 302-902 stands out with its ability to harness energy effectively, leading to significant savings in operational costs. It is equipped with an efficient gas burner, which optimizes fuel consumption while delivering rapid heating performance. This efficiency is complemented by its ability to operate with natural gas or propane, making it adaptable to various setups and preferences.

The unit also prides itself on its environmentally friendly operation. It meets stringent regulations for emissions, ensuring that pool owners can enjoy a pool heating solution that is both effective and reduces its ecological footprint. This focus on sustainability has made it a popular choice among environmentally conscious consumers.

Moreover, the Raypak 302-902 is designed for versatility. It can be easily integrated with existing pool systems and is compatible with both in-ground and above-ground pools. This flexibility allows it to cater to a wide range of pool sizes and configurations, making it suitable for both residential and commercial applications.

In conclusion, the Raypak 302-902 offers an array of features, technologies, and characteristics that make it a top contender in the pool heating market. With its durable construction, advanced digital controls, energy efficiency, and environmentally friendly operation, it remains a reliable choice for those seeking comfort and convenience in their swimming experience. Whether for a backyard oasis or a commercial facility, the Raypak 302-902 delivers consistent performance and accessibility.
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