Raypak 503-2003 manual General Safety, Time/Temperature Relationships in Scalds

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GENERAL SAFETY

To meet commercial hot water use needs, the high limit safety control on this water heater will shut off the main gas valve before the outlet temperature reaches 210°F. However, water temperatures over 125°F can cause instant severe burns or death from scalds. When supplying general purpose hot water, the rec- ommended initial setting for the temperature control is 125°F.

This section applies to Hot Water Supply Boilers and Hot Water Heaters ONLY. For sanitary rinse applica- tions where outlet temperatures of 180°F to 195°F are required, a boiler is recommended since the 210°F limit on water heaters will NOT allow the heater to maintain these desired sanitary rinse temperatures.

Safety and energy conservation are factors to be con- sidered when setting the water temperature on the thermostat. The most energy-efficient operation will result when the temperature setting is the lowest that satisfies the needs of the application.

Water temperature over 125°F can cause instant severe burns or death from scalds. Children, disabled and elderly are at highest risk of being scalded.

Feel water before bathing or showering.

Temperature limiting valves are available.

NOTE: When this water heater is supplying general purpose hot water for use by individuals, a thermostatically controlled mixing valve for reducing point of use water temperature is recommended to reduce the risk of scald injury. Contact a licensed plumber or the local plumbing authority for further information.

Maximum water temperatures occur just after the heater’s burner has shut off. To determine the water temperature being delivered, turn on a hot water faucet and place a thermometer in the hot water stream and read the thermometer.

Water temperature over 125°F can cause instant severe burns or death from scalds.

Children, disabled, and elderly are at highest risk of being scalded.

See instruction manual before set- ting temperature at water heater.

Feel water before bathing or show- ering.

Temperature limiting valves are available, see manual.

Time/Temperature

Relationships in Scalds

The following chart details the relationship of water temperature and time with regard to scald injury and may be used as a guide in determining the safest water temperature for your applications.

Water

Time to Produce Serious

Temp.

Burn

 

 

120°F

More than 5 minutes

 

 

125°F

1-1/2 to 2 minutes

 

 

130°F

About 30 seconds

 

 

135°F

About 10 seconds

 

 

140°F

Less than 5 seconds

 

 

145°F

Less than 3 seconds

 

 

150°F

About 1-1/2 seconds

 

 

155°F

About 1 second

 

 

Table courtesy of The Shriners Burn Institute

Table B: Time to Produce Serious Burn

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Contents Reference Catalog no .53G Effective Replaces 241288 Rev Do so may result in an explosion or firePage Contents Pay Attention to These Terms Model Identification Before InstallationInstallations at Elevation Product ReceiptGeneral Information Component LocationsTime/Temperature Relationships in Scalds General SafetyWater Time to Produce Serious Temp Burn Equipment Base InstallationInstallation Codes Indoor InstallationsCombustion and Ventilation Air Outdoor InstallationsIndoor Units Table E Vent/Air Inlet Termination Clearances Direct Vent InstallationsConventional Combustion Air Supply Air FilterWater Piping Canadian InstallationsGeneral Hydrostatic Test Relief Valve Piping Temperature & Pressure GaugeCold Water Operation Cold Water Starts Hydronic HeatingPump Selection Feedwater RegulatorAir-Separation/Expansion Tank PipingModel 20F 30F 40F Min. Flow Max. Flow Gpm Pool Heating Three-Way ValvesDomestic Hot Water Potable Water and Space HeatingMake final adjustments when pool water approaches Winterizing Your Heater Pool/Spa Water ChemistryExceed 5 ppm Automatic Chlorinators Chemical Feeders Gas SupplyGas Supply Connection Gas Supply PressureHigh Fire Values Electrical Power ConnectionsModel In. NPT 4 in. NPT 2 in. NPT Manifold Gas Pressure ModelField-Connected Controllers Check the Power SourceMaking the Electrical Connections Venting Field Wiring ConnectionAppliance Categories Support of Vent Stack InstallationsVent Terminal Location Installation Venting Installation TipsVenting Configurations Canadian InstallationsCpvc TerminationModel Pressure Flue Products VolumeCommon Venting VentHorizontal Through-the-Wall Venting Horizontal Through-the-Wall Direct Venting Category10 Ø Direct Vent-VerticalModel Certified Combustion Air Air Inlet Horizontal Max. Length** ft VentOutdoor Installation Freeze Protection ControlsOperating Modes Mode 2 Primary/Secondary Piping Mode 7 Primary/Secondary Piping with External Target Temp 10 VDC 20 mA Modes Default Setting Range10 VDC 20 mA Boiler Target Definitions Operation Number Field Type Fault DescriptionRank Code Condition High Limit-Manual ResetHeater Sequence of Operation Ignition ModuleHigh & Low Gas Pressure Switches Optional High Limit-Auto Reset OptionalModulating Temperature Control Flow SwitchBlocked Vent Switch Air Pressure SwitchUDB Diagnostic Board Wiring Diagrams Models Models Initial Start-up START-UPPre Start-up Pre Start-up CheckStart-Up PreparationBlower Check Manifold Check Safety InspectionModel Air Pressure Setting Setting in. WC Model Amp Draw SettingFollow-Up Leak Test Procedure Dual-Seat Gas ValveLighting Instructions OperationPost Start-Up Check To Turn Off Gas To Appliance Step TroubleshootingUDB Fault History MaintenanceSuggested Minimum Maintenance Schedule Semi-Annually Preventive Maintenance SchedulePeriodically WeeklyFilter Replacement Filter MaintenanceAs Required Inside Air Contamination AppendixImportant Instructions for the Commonwealth of Massachusetts Limited Parts Warranty MVB Types H and WH START-UP Checklist for FAN-ASSISTED Raypak Products
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503-2003 specifications

The Raypak 503-2003 is a notable entry in the world of water heating solutions, renowned for its efficiency and reliability in both residential and commercial settings. This model is designed to provide exceptional performance while maintaining ease of use and minimization of environmental impact.

One of the standout features of the Raypak 503-2003 is its advanced heating technology. The unit utilizes a durable, copper heat exchanger which ensures quick and efficient heating of water. This heat exchanger is known for its ability to transfer heat effectively, leading to reduced energy consumption and lower utility bills. The design also allows for a seamless operation, ensuring that the system heats water swiftly without sacrificing performance.

In addition to its efficient heating capabilities, the Raypak 503-2003 is equipped with innovative controls. The digital control panel allows users to easily set and adjust the desired water temperature. This feature provides a level of convenience that simplifies operation while enhancing user experience. Furthermore, the smart technology employed in the unit ensures that it operates within optimal parameters, avoiding unnecessary energy expenditure.

Durability is another hallmark of the Raypak 503-2003. Built with heavy-duty components, this water heating solution is designed to withstand the rigors of continuous use. The rugged construction ensures longevity, making it a cost-effective investment for homeowners and businesses alike. Moreover, the unit is designed to be resistant to corrosion and wear, further extending its lifespan and reliability.

The energy efficiency of the Raypak 503-2003 is a crucial characteristic that sets it apart from competitors. Rated with a high efficiency score, this model contributes to lower emissions and is environmentally friendly. It adheres to various energy standards, making it a suitable choice for those looking to reduce their carbon footprint while enjoying reliable water heating.

Noise reduction is another important feature of the Raypak 503-2003. Designed with quiet operation in mind, the unit operates with minimal noise pollution, allowing for a pleasant environment in both residential and commercial spaces.

In summary, the Raypak 503-2003 combines advanced heating technology, user-friendly controls, durability, and energy efficiency into a robust water heating system. This makes it an excellent choice for those in need of dependable and sustainable heating solutions. Whether for daily home use or for larger commercial applications, the Raypak 503-2003 stands out as a leader in its class.