Raypak 503-2003 Venting Installation Tips, Venting Configurations, Vertical Venting Category

Page 25

SECTION C: Installation

5.Within 6 ft (1.8 m) of any gas service regulator vent outlet.

6.Less than 1 ft (305 mm) above grade level.

7.Within 3 ft (0.9 m) of a window or door which can be opened in any building, any non-mechanical air supply inlet to any building or the combustion air inlet of any other appliance.

8.Underneath a verandah, porch or deck, unless the verandah, porch or deck is fully open on a mini- mum of two sides beneath the floor, and the distance between the top of the vent termination and the underside of the verandah, porch or deck is greater than 1 ft (305 mm).

Venting Installation Tips

Support piping:

•horizontal runs - at least every 5 ft

•vertical runs - use braces

•under or near elbows

WARNING: Examine the venting system at least once a year. Check all joints and vent pipe connections for tightness, corrosion or deterioration.

Venting Configurations

For heaters connected to gas vents or chimneys, vent installations shall be in accordance with Part 7, Venting of Equipment, of the NFGC (U.S.), or B149.1 (Canada), or applicable provisions of local building codes.

Vertical Venting (Category IV)

CAUTION: This venting system requires the installa- tion of a condensate drain in the vent piping per the vent manufacturer’s instructions. Failure to install a condensate drain in the venting system will void all warranties on this heater.

Installation

The maximum and minimum venting length for this Category IV appliance shall be determined per the NFGC (U.S.) or B149.1 (Canada).

The diameter of vent flue pipe should be sized accord- ing to Part 11 of the NFGC (U.S.) and Part 7 and Appendix B of B149.1 (Canada). The minimum flue pipe diameter for conventional venting using Category IV, stainless steel AL29-4C vent is: 6 in. for Models 503-1003; and 8 in. for Models 1253-2003.

NOTICE: A vent adapter (field-supplied) may be re- quired to connect the Category IV vent to the heater.

The connection from the appliance vent to the stack must be as direct as possible and shall be the same di- ameter as the vent outlet. The horizontal breaching of a vent must have an upward slope of not less than 1/4 inch per linear foot from the heater to the vent terminal. The horizontal portions of the vent shall also be sup- ported for the design and weight of the material employed to maintain clearances and to prevent physi- cal damage or separation of joints.

 

Certified

Vent Size

Vertical Vent

Combustion Air

 

Air Inlet

 

Model

Vent

Height1(Ft)

Intake Pipe

Max. Length** (Ft)

 

Material

(in.)

 

 

Material

 

 

 

 

 

Min.

Max.

6” Ø

8” Ø

 

10” Ø

 

 

 

503

 

 

 

15*

 

 

 

 

 

 

 

6

 

 

 

45

100

 

N/A

753

 

 

75

 

 

 

 

 

 

 

Galvanized Steel,

 

 

 

 

1003

 

 

 

75

 

 

 

 

 

Category IV

 

 

 

PVC,

 

 

 

 

1253

 

0

40

 

 

 

 

(AL29-4C)

 

ABS,

 

 

 

 

1503

 

 

75

 

 

 

 

 

 

 

CPVC

N/A

45

 

85

1753

 

8

 

75

 

 

 

 

 

 

 

 

 

2003

 

 

 

75

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*Vent length may be extended up to 40 ft. using a barometric damper installed at 15 equivalent feet from the heater where the category of the vent changes from Cat IV to Cat II. NOTE: Special vent materials are still required.

1Vent lengths are based on a lateral length of 2 ft. Refer to the latest edition of the NFGC for further details. ** Subtract 10 ft per elbow. Max. 4 elbows.

Table K: Category IV Vertical Venting

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Contents Installation Operating Instructions Page Table of Contents PAY Attention to These Terms Section a Before InstallationProduct Receipt Model IdentificationComponent Locations Installations at ElevationGeneral Information Water Gas Vent Size Model Conn InputSection B Hot Water Supply General SafetyWater Temp Time to Produce Serious Burn Time/Temperature Relationships in ScaldsInstallation Codes InstallationSection C Equipment BaseInstallations1 Canadian Installations2 Heater Min. Clearance Recommended From Combustible Service Outdoor InstallationsCombustion and Ventilation Air Indoor UnitsOptional Construction Air Filter InstallationsDirect Vent TruSeal Combustion AirWater Piping Canadian InstallationsGeneral Cold Water Operation Relief Valve Piping Hydrostatic TestCold Water Starts Cold Water Run Temperature & Pressure GaugeModel 20F∆T 30F∆T 40F∆T Min. Flow Max Flow Gpm ∆P ft ∆P ft GpmDomestic Hot Water Hydronic HeatingPool Heating Potable Water and Space HeatingWinterizing Your Heater Automatic Chlorinators and Chemical FeedersPool/Spa Water Chemistry Gas SupplyWater Hardness PH of WaterGas Supply Pressure Gas Supply ConnectionModel NPT 4 NPT 2 NPT Check the Power Source Electrical Power ConnectionsField-Connected Controllers Making the Electrical Connections Field Wiring ConnectionAppliance Categories VentingSupport of Vent Stack Inlet MaterialVent Terminal Location Canada InstallationsVenting Configurations Venting Installation TipsInstallation Vertical Venting CategoryTermination Vent Size Volume Model Pressure Flue Products In. WCCommon Venting Typical Common Venting Horizontal Through-the-Wall Direct Venting CategoryHorizontal Through-the-Wall Direct Venting Direct Vent Vertical Direct Vent VerticalControls Outdoor InstallationFreeze Protection Definitions Operating ModesOperation Modulating Temperature Control User Interface Modes Default RangeModel 503 Heater Sequence of OperationModel 1753 Section C Installation Ignition Module High Limit Auto Reset Optional High Limit Manual ResetFlow Switch Code ConditionHigh and Low Gas Pressure Switches Optional Modulating Temperature ControlAir Pressure Switch Low Water Cut-Off OptionalUDB Diagnostic Board Blocked Vent SwitchModels Wiring DiagramsModels Section C Installation Start-up Section DPre Start-up Start-Up Blower AdjustmentPre Start-up Check Initial Start-upManifold Adjustment Leak Test Procedure Dual-Seat Gas Valve Safety InspectionFollow-Up Post Start-Up Check Leak Test ProcedureSection D Start up Operation Section ELighting Instructions To Turn Off Gas To ApplianceSection E Operation Section F TroubleshootingUDB Fault History Suggested Minimum Maintenance Schedule MaintenanceSection G Preventive Maintenance Schedule Appendix Section HInside Air Contamination Limited Parts Warranty MVB Types H and WH
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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.

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