Raypak 302A-902A manual Potable Water and Space Heating, Pool Heating

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Potable Water and Space Heating

CAUTION: When this heater is used for both potable water and space heating, observe the follow- ing to ensure proper operation.

1.All piping materials and components connected to the water heater for the space heating application shall be suitable for use with potable water.

2.Toxic chemicals, such as used for boiler treatment, shall not be introduced into the potable water used for space heating.

3.If the heater will be used to supply potable water, it shall not be connected to any heating system or components previously used with a non-potable water heating appliance.

4.When the system requires water for space heating at temperatures higher than 140°F, a means such as a mixing valve shall be installed to temper the water in order to reduce scald hazard potential.

Fig. 13: Single Domestic Hot Water Heater and Storage

Tank

Pool Heating

CAUTION: Power to the heater should be inter- locked 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 prop- erly installed.

The Hi Delta pool heater is equipped with an external pump and bypass arrangement as standard equip- ment. This arrangement blends outlet water with the inlet water to increase the inlet water temperature, thereby reducing the likelihood of condensation form- ing on the heat exchanger. The pump also serves to

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Model

Soft (0-4 grains per gallon)

Medium (5-15 grains per gallon)

Hard* (16+ grains per gallon)

 

 

No.

T

gpm

P

MTS

SHL

T

gpm

P

MTS

SHL

T

gpm

P

MTS

SHL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

302A

13

40

2.0

2

4.3

10

52

3.3

2

7.1

6

90

9.8

2

20.3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

402A

17

40

2.0

2

4.4

13

52

3.4

2

7.2

8

90

10.0

2

20.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

502A

21

40

2.1

2

4.5

16

52

3.5

2

7.4

9

90

10.4

2

20.9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

652A

28

40

2.2

2

4.6

20

55

4.1

2

8.4

12

90

10.8

2

21.3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

752A

30

42

2.6

2

5.2

20

63

5.7

2

11.1

14

90

11.3

2

21.8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

902A

30

51

3.9

2

7.6

20

76

8.4

2

16.1

17

90

11.7

2

22.2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ΔT = Temperature rise, °F

ΔP = Pressure drop through heat exchanger, ft

SHL = System head loss, ft (based on heater and tank placed no more than 5 ft apart and equivalent length pipe/fittings of 2” tube = 25 ft) gpm = Gallons per minute, flow rate

MTS = Minimum tubing size

*Must use optional cupro-nickel tubes. If over 25 grains per gallon, a water softening system must also be used

Table I: Domestic Water Heater Flow Rate Requirements

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Contents Installation and Operating Instructions Page Contents Pay Attention to These Terms Model Identification Before InstallationProduct Receipt Ratings and CertificationsComponent Locations Component Locations BackGeneral Information Model # Burners per Stages Fire at ValveModel # Burners Valve Firing Per Valve Staging General Safety Time/Temperature Relationships in ScaldsWater Time to Produce Serious Temp Burn Equipment Base InstallationInstallation Codes StackingIndoor Installations Outdoor InstallationsClearances Installations1 Canadian Installations2 Reversing Air Filter Combustion and Ventilation AirIndoor Units Direct VentTruSeal Combustion Air InstallationsConventional Combustion Air Supply All Air from Inside the BuildingGeneral Canadian InstallationsWater Piping Reversing Water ConnectionsRelief Valve Piping Hydrostatic Test Cold Water OperationPump Selection Temperature & Pressure GaugeHydronic Heating Min. Flow Max Flow GpmAir-Separation/Expansion Tank Pressure Drop in Feet of Head Feedwater RegulatorPiping Three-Way ValvesPotable Water and Space Heating Pool HeatingAutomatic Chlorinators and Chemical Feeders Winterizing Your HeaterPH of Water Gas SupplyPool/Spa Water Chemistry Water Hardness Total Dissolved SolidsGas Supply Connection Reversing Gas Supply ConnectionTable J Maximum Equivalent Pipe Length Gas Supply Pressure Electrical Power ConnectionsCheck the Power Source Field-Connected ControllersField Wiring Connection Making the Electrical ConnectionsWiring Connections Venting Appliance CategoriesDirect Venting Horizontal Through Support of Vent StackVent Terminal Location Stainless SteelInstallations Canadian InstallationsChanging the Flue Outlet Installation Venting Installation TipsVenting Configurations Natural Draft Vertical Venting CategoryModel Venting Vent Size Height Intake Pipe Max. Length TerminationCommon Venting System Min MaxHorizontal Through-the-Wall Venting Category Horizontal Through-the-Wall Venting CategoryDirect Vent Horizontal Through- the-Wall Max. Length Venting Vent Size Equivalent Intake PipeMaterial Direct Vent Vertical Outdoor Installation ControlsFreeze Protection Heater Sequence of Operation Models 302A, 402A, 502A, 652A, 752A and 902AAuto Reset High Limit Red Auto reset option External Lights Color IndicationInternal Lights Color Indication Ignition Module Code ConditionHigh and Low Gas Pressure Switches High Limit Manual ResetFlow Switch Operating ControlHigh/Low Gas Pressure Switch Model 10F 20F 30F Min. Flow Max Flow Gpm 87%-Efficiency Boilers Special Instructions Water PipingVenting Appliance Categories Direct Venting Horizontal Through AL29-4CVertical Venting Category Vent Terminal LocationCondensate Management 100’ Ducted Certified Maximum Combustion Air Air Inlet Model VentingMaterial Vent Length 40’ 752AE Combustion Air 902AE 30’ 80’Direct Vent Horizontal Through- the-Wall 302A 100’ 402A Galvanized Steel 502A 75’ Category 25’ Direct Vent VerticalCertified Vertical Venting Combustion Air Air Inlet 100’ 40’ 752A 902AWiring Diagram START-UP Pre Start-upBlower Adjustment Main Burner AdjustmentStart-Up Follow-Up Safety InspectionLeak Test Procedure Dual-Seat Gas Valves Pilot Turn-Down TestPost Start-Up Check Leak TestOperation Lighting InstructionsTo Turn Off Gas To Appliance Troubleshooting StepMaintenance Suggested Minimum Maintenance SchedulePreventive Maintenance Schedule Annually WeeklySemi-Annually As RequiredAppendix Inside Air ContaminationLimited Parts Warranty HI Delta Types H and WH Limited Parts Warranty HI Delta Type P

302A-902A specifications

The Raypak 302A-902A is a highly regarded pool and spa heater, known for its efficiency and reliability in delivering warmth to residential and commercial aquatic applications. This heater stands out due to its robust design, advanced technology, and user-friendly features.

One of the key characteristics of the Raypak 302A-902A is its dual fuel capability, which means it can run on either natural gas or propane. This flexibility allows users to choose their preferred fuel type, contributing to operational efficiency and cost-effectiveness. With a BTU output ranging from 302,000 to 902,000, the Raypak heater is capable of quickly heating large volumes of water, making it ideal for pools, spas, and hot tubs.

The heater incorporates advanced technology such as a stainless steel heat exchanger, which not only ensures excellent thermal conductivity but also promotes durability against corrosion. This is especially advantageous in harsh environments, where exposure to chemicals can significantly impact the lifespan of traditional copper heat exchangers. The Raypak 302A-902A's heat exchanger is designed to withstand the rigors of constant use while maintaining high performance levels.

Another prominent feature of the Raypak 302A-902A is its digital display control system, which simplifies the operation and monitoring of the heater. Users can easily set and adjust temperatures, as well as access diagnostic information, all through an intuitive interface. This digital control not only enhances user experience but also aids in the timely maintenance of the unit.

Energy efficiency is another major selling point of the Raypak 302A-902A. The heater is designed with environmentally friendly practices in mind, utilizing a low NOx burner that minimizes harmful emissions. This not only meets environmental regulations but also makes it a greener alternative for heating needs.

In terms of installation, the compact design of the Raypak 302A-902A allows for versatile placement options, whether in a residential backyard or a commercial environment. Its user-friendly installation process ensures that homeowners and businesses alike can enjoy the benefits of heated water with minimal hassle.

Overall, the Raypak 302A-902A is an exemplary choice for anyone seeking a high-quality, efficient, and flexible pool and spa heating solution. Its combination of robust engineering, advanced technology, and user-focused features solidifies its position as a leader in the market, promising effective heating for years to come. Whether for personal enjoyment or commercial use, this heater delivers exceptional performance that meets diverse heating needs.
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