Raypak 122-322 manual Table I Vent/Air Inlet Termination Clearances

Page 23

Fig. 17: Minimum Clearances from Vent/Air Inlet Terminations – Indoor and Outdoor Installations

 

 

U.S. Installations1

Canadian Installations2

A

Clearance above grade, veranda, porch,

1 ft (30 cm)

1 ft (30 cm)

deck, or balcony

 

 

 

 

 

 

 

 

Clearance to window or door that may be

4 ft (1.2m) below or to side

 

B

of opening; 1 foot (30 cm)

3 ft (91 cm)

opened

 

above opening

 

 

 

 

 

 

 

 

C

Clearance to permanently closed window

*

*

 

 

 

 

 

Vertical clearance to ventilated soffit located

 

 

D

above the terminal within a horizontal dis-

5 ft (1.5m)

*

tance of 2 ft (61cm) from the centerline of the

 

 

 

 

terminal

 

 

 

 

 

 

E

Clearance to unventilated soffit

*

*

 

 

 

 

F

Clearance to outside corner

*

*

 

 

 

 

G

Clearance to inside corner

6 ft (1.83m)

*

 

 

 

 

 

Clearance to each side of center line ex-

 

3 ft (91 cm) within a height

H

*

15 ft above the me-

tended above meter/regulator assembly

 

 

ter/regulator assembly

 

 

 

 

 

 

 

I

Clearance to service regulator vent outlet

*

6 ft (1.83m)

 

 

 

 

 

Clearance to non-mechanical air supply inlet

4 ft (1.2m) below or to side

 

J

to building or the combustion air inlet to any

of opening; 1 ft (30 cm)

3 ft (91 cm)

 

other appliance

above opening

 

 

 

 

 

K

Clearance to mechanical air supply inlet

3 ft (91 cm) above if within

6 ft (1.83m)

10 ft (3m) horizontally

 

 

 

 

 

 

 

L

Clearance above paved sidewalk or paved

7 ft (2.13m)

7 ft (2.13m) t

driveway located on public property

 

 

 

 

 

 

 

M

Clearance under veranda, porch, deck or

*

12 in. (30 cm) TT

balcony

 

 

 

 

 

 

 

1In accordance with the current ANSI Z223.1/NFPA 54 National Fuel Gas Code

2In accordance with the current CAN/CGA-B149 Installation Codes

t Vent terminal shall not terminate directly above sidewalk or paved driveway located between 2 single family dwellings that serves both dwellings

TT Permitted only if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the floor and top of terminal and underside of veranda, porch, deck or balcony is greater than 1 ft (30cm)

*Clearances in accordance with local installation codes and the requirements of the gas supplier

Table I: Vent/Air Inlet Termination Clearances

23

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Contents Installation & Operating Instructions Page Contents Are important but not related to personal injury hazards Model Identification Before InstallationInstallations at Elevation Product ReceiptComponent Locations-Back Component LocationsModel Burners per Valve Stages Fire at Stage General InformationModel Quantity Vent Size Burners Gas Valves Blowers Flue Water Time to Produce Serious Temp Burn General SafetyTime/Temperature Relationships in Scalds Equipment Base InstallationInstallation Codes Indoor InstallationsHeater Min. Clearance Recommended From Combustible Outdoor InstallationsIndoor Units InstallationsCombustion and Ventilation Air Conventional Combustion Air SupplyRelief Valve Piping Canadian InstallationsWater Piping GeneralHydronic Heating Dual Boiler-Primary/Secondary Piping Three-Way Valves Domestic Hot Water PipingPiping-Heating Boilers Air-Separation/Expansion TankSingle Heater-Domestic Hot Water with One Storage Tank Winterizing Your Heater Pool HeatingGas Supply Automatic Chlorinators and Chemical FeedersGas Pressure Regulator Gas Supply Connection Gas Supply PressureMaking the Electrical Connections Electrical Power ConnectionsCheck the Power Source Surge ProtectionSingle Stage and 2-Stage Tankstat Electrical Connections-Domestic Hot WaterDefinition of Appliance Categories VentingVent Terminal Location Barometric DamperSupport of Vent Stack Table I Vent/Air Inlet Termination Clearances Canada Installations US InstallationsVenting Configurations Venting Installation TipsNatural Draft Vertical Vent Termination Natural Draft Vertical Venting System InstallationCategory Inches Length feet Model Appliance Certified Vent Size Max. VentingHorizontal Thru-wall Direct Vent Termination Feet Certified Max Combustion Air Inlet Max. AirVenting Air Intake Category Inches LengthHorizontal Thru-wall Direct Vent Termination Height Inches Min./Max Combustion Max. Air CertifiedVenting Category InchesVertical Direct Vent Termination Outdoor InstallationVertical Direct Vent System Installation Ignition Control Module High Limit Manual ResetControls Low Water Cut Off Optional Flow SwitchWiring DIAGRAM-MODELS Initial START-UP PRE-START-UPStart-Up Main Burner AdjustmentSafety Inspection Operating Instructions Post START-UP CheckOperation Follow-UpYearly Beginning of each heating season MaintenanceSuggested Minimum Maintenance Schedule To Turn Off Gas To ApplianceQuarterly AppendixInside Combustion Air Contamination MonthlyCorporate Headquarters Page
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122-322 specifications

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