Raypak 503-2003 manual Water Piping, Canadian Installations, General

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shall communicate directly, or by ducts, with the outdoors or spaces (crawl or attic) that freely com- municate with the outdoors.

a.Where directly communicating with the out- doors or where communicating to the outdoors through vertical ducts, each open- ing shall have a minimum free area of 1 in.2 per 4,000 BTUH (550 mm2 per kW) of total input rating of all equipment in the enclosure.

b.Where communicating with the outdoors through horizontal ducts, each opening shall have a minimum free area of 1 in.2 per 2,000 BTUH (1,100 mm2 per kW) of total input rat- ing of all equipment in the enclosure.

2.One permanent opening, commencing within 12 in. (305 mm) of the top of the enclosure, shall be permitted where the equipment has clearances of at least 1 in. (25 mm) from the sides and back and 6 in. (152 mm) from the front of the appliance. The opening shall directly communicate with the out- doors or shall communicate through a vertical or horizontal duct to the outdoors or spaces that freely communicate with the outdoors, and shall have a minimum free area of:

a.1 in.2 per 3,000 BTUH (740 mm2 per kW) of the total input rating of all equipment located in the enclosure, and

b.Not less than the sum of the areas of all vent connectors in the confined space.

WARNING: Do not use the “one permanent opening” method if the equipment room is under negative pressure conditions.

Canadian Installations

CAUTION: All combustion air must be drawn from the air outside of the building; the mechanical equip- ment room must communicate directly with the outdoors.

1.Ventilation of the space occupied by the heater shall be provided by an opening(s) for ventilation air at the highest practical point communicating with the outdoors. The total cross-sectional area of such an opening(s) shall be at least 10% of the area required in 2. and 3. (below), but in no case shall the cross-sectional area be less than 10 in.2

(65 cm2).

2.For heaters using a barometric damper in the vent system there shall be a permanent air supply opening(s) having a cross section area of not less than 1 in.2 per 7,000 BTUH (320 mm2 per kW) up to and including 1 million BTUH, plus 1 in.2 per 14,000 BTUH (160 mm2 per kW) in excess of 1 million BTUH. This opening(s) shall be either located at or ducted to a point not more than 18 in. (450 mm) nor less than 6 in. (152 mm) above the floor level. The duct can also “goose neck” through the roof. The duct is preferred to be straight down and terminated 18 in. (450 mm) from the floor, but not near piping. This air supply opening require- ment shall be in addition to the air opening for ventilation air required in 1. (above).

WARNING: Care must be taken to ensure that the equipment room is not under negative pressure conditions.

3.For heaters not using a barometric damper in the vent system, and when air supply is provided by natural air flow from outdoors for a power burner and there is no draft regulator, drafthood or similar flue gas dilution device installed in the same space, in addition to the opening for ventilation air required in 1., there shall be a permanent air sup- ply opening(s) having a total cross-sectional area of not less than 1 in.2 for each 30,000 BTUH (74 mm2 per kW) of total rated input of the burner(s), and the location of the opening(s) shall not inter- fere with the intended purpose of the opening(s) for ventilation air referred to in 1. This opening(s) can be ducted to a point not more than 18 in. (450 mm) nor less than 6 in. (152 mm) above the floor level. The duct can also “goose neck” through the roof. The duct is preferred to be straight down 18 in. (450 mm) from the floor, but not near piping.

4.Refer to the B149 Installation Code for additional information

Water Piping

General

The heater should be located so that any water leaks will not cause damage to the adjacent area or struc- tures.

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Contents Do so may result in an explosion or fire Reference Catalog no .53G Effective Replaces 241288 RevPage Contents Pay Attention to These Terms Before Installation Installations at ElevationProduct Receipt Model IdentificationComponent Locations General InformationGeneral Safety Time/Temperature Relationships in ScaldsWater Time to Produce Serious Temp Burn Installation Installation CodesIndoor Installations Equipment BaseOutdoor Installations Combustion and Ventilation AirIndoor Units Table E Vent/Air Inlet Termination Clearances Installations Conventional Combustion Air SupplyAir Filter Direct VentCanadian Installations Water PipingGeneral Relief Valve Piping Temperature & Pressure Gauge Hydrostatic TestCold Water Operation Hydronic Heating Pump SelectionFeedwater Regulator Cold Water StartsPiping Air-Separation/Expansion TankModel 20F 30F 40F Min. Flow Max. Flow Gpm Three-Way Valves Domestic Hot WaterPotable Water and Space Heating Pool HeatingMake final adjustments when pool water approaches Pool/Spa Water Chemistry Winterizing Your HeaterExceed 5 ppm Gas Supply Gas Supply ConnectionGas Supply Pressure Automatic Chlorinators Chemical FeedersElectrical Power Connections Model In. NPT 4 in. NPT 2 in. NPTManifold Gas Pressure Model High Fire ValuesCheck the Power Source Field-Connected ControllersMaking the Electrical Connections Field Wiring Connection VentingAppliance Categories Installations Support of Vent StackVent Terminal Location Venting Installation Tips Venting ConfigurationsCanadian Installations InstallationTermination CpvcVolume Common VentingVent Model Pressure Flue ProductsHorizontal Through-the-Wall Direct Venting Category Horizontal Through-the-Wall VentingDirect Vent-Vertical Model CertifiedCombustion Air Air Inlet Horizontal Max. Length** ft Vent 10 ØOutdoor Installation Controls Freeze ProtectionOperating Modes Mode 2 Primary/Secondary Piping Mode 7 Primary/Secondary Piping with External Target Temp Modes Default Setting Range 10 VDC 20 mA10 VDC 20 mA Boiler Target Definitions Number Field Type Fault Description OperationRank High Limit-Manual Reset Heater Sequence of OperationIgnition Module Code ConditionHigh Limit-Auto Reset Optional Modulating Temperature ControlFlow Switch High & Low Gas Pressure Switches OptionalAir Pressure Switch Blocked Vent SwitchUDB Diagnostic Board Wiring Diagrams Models Models START-UP Pre Start-upPre Start-up Check Initial Start-upPreparation Start-UpBlower Check Safety Inspection Model Air Pressure Setting Setting in. WCModel Amp Draw Setting Manifold CheckLeak Test Procedure Dual-Seat Gas Valve Follow-UpOperation Lighting InstructionsPost Start-Up Check To Turn Off Gas To Appliance Troubleshooting StepMaintenance UDB Fault HistorySuggested Minimum Maintenance Schedule Preventive Maintenance Schedule PeriodicallyWeekly Semi-AnnuallyFilter Maintenance Filter ReplacementAs Required Appendix Inside Air ContaminationImportant 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.
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