Raypak 122-322 installation instructions

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COMBUSTION AND VENTILATION AIR SUPPLY (FOR CANADA INSTALLATION)

CAUTION:

All combustion air has to be drawn from the air outside the building (the mechanical equipment room directly communicates 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 outdoors. The total cross-sectional area of such an opening(s) shall be at least 10% of the area required in (2) and (3), but in no case shall the cross-sectional area be less than 10 sq. in. (6500 sq. mm.).

2.For heaters using a barometric damper in the vent system, and when air supply is provided by natural air flow from the outdoors for natural draft, partial fan assisted, fan-assisted or power draft-assisted burners, there shall be a permanent air supply opening(s) having a cross section area of not less than 1 sq. in. per 7000 BTUH

(310 sq. mm per kW) up to and including 1 million BTUH, plus 1 sq. in. per 14000 BTUH (155 sq. mm per kW) in excess of 1 million BTUH. This opening(s) shall be either located at or ducted to a point neither more than 18 in. (450 mm) nor less than 6 in. (150 mm) above the floor level. The duct can also "Goose Neck" through

the roof. The duct is preferred straight down 18” from floor, but do not place near piping. This air supply opening requirement shall be in addition to the air opening for ventilation air required in (1).

3.For heaters not using a barometric damper in the ventsystem, 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 supply opening(s) having a total cross-sectional area of not less than 1 sq. in. for each 30,000 BTUH

(70 sq. mm per kW) of total rated input of the burner(s), and the location of the opening(s) shall not interfere with the intended purpose of the opening(s) for ventilation air referred to (1). This opening(s) can be ducted to a point neither more than 18 in. (450 mm) nor less than 6 in. (150 mm) above the floor level. The duct can also

"Goose Neck" through the roof. The duct is preferred to be straight down 18” from floor, but do not place near piping.

4.Refer to the latest version of the B149.1 and .2 for additional information.

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Contents Operating Installation Instructions Table of Contents Page Section a Before Installing the Heater Product ReceiptModel Identification Ratings and CertificationsHI Delta Component Location General Information Section B Heater Installation InstallationcodesEquipment Base Models Heater Side 122-322Outdoorinstallations Outdoor Installation Minimum ClearancesHeater Model Heater Side 120-322Section C Combustion and Ventilation AIR Combustion and Ventilation AIR Indoor UnitsDirect Combustion AIR Page LOW Temperature System Temperature & Pressure GaugeSection D Water Piping General Reliefvalve PipingSection E Hydronic Heating Piping Page Section F Domestic HOT Water Piping Table F-1 Domestic Water Heater Flowrate RequirementsSingle Heater Domestic HOT Water with ONE Storage Tank Section G Pool Heating Automatic Chlorinators and ChemicalfeedersWinterizingyou Heater Pooland SPA Water ChemistrySection H GAS Supply Connections GAS Supply ConnectionGAS Supply Pressure GAS Pressure Regulator Section I Electrical Power Connections Check the Power SourceCheck Power Source Surge ProtectionField Wiring Connection Making the Electrical ConnectionsElectrical Connections Domestic HOT Water ShockhazardSection J Venting Connections Definition ofAppliance CategoriesTable J-1 Support of Vent Stack Vent Terminal Location GeneralVenting Installation Tips Venting ConfigurationsSection J-1 Natural Draft Vertical Venting Category Natural Draft VerticalventNatural Draft Vertical Venting System Installation Natural Draft Vertical Vent TerminationPage Section J-2 HORIZONTALTHRU-WALLVENTING Category III TableHorizontal Thru-wall Direct Vent Termination Section J-3 Direct Vent HORIZONTALTHRU-WALLVENTING TableHorizontal Thru-wall Direct Vent Termination Direct Vent Verticalventing TableVertical Direct Vent System Installation Vertical Direct Vent TerminationSection J-5 Section K Controls Ignitionmodule High Limit Manual Reset Manual Reset High Limit Flow SwitchIgnition Control Module Operating ControlLOW Water CUT OFF Optional LOW Water CUT-OFFWire Diagram Models Section L General Safety Precautions TIME/TEMPERATURE Relationships in ScaldsSection M PRE-START-UP Section N Initial START-UP Tools NeededPreparation for START-UP Turn Off Main Gas ValveSTART-UP Your Hi Delta is tunedSection O Post START-UP Check Section P Operation Toturn OffgastoapplianceSection Q Maintenance Suggested Minimum Maintenance ScheduleAppendix a InsidecombustionaircontaminationFig # Heat Exchanger Detail Page Page Page Corporate Headquarters
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122-322 specifications

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