PB Heat DE manual Air Openings All Air from Outdoors through Vertical Ducts

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Vreq

PREINSTALLATION

Figure 1.4: Air Openings – All Air from Outdoors through Vertical Ducts

ii.Where communicating with the outdoors through horizontal ducts, each opening shall have a minimum free area of 1 in2 per 2000 Btu/hr (22 cm2 per 2000 W) of total rated input for all appliances in the space. See Figure 1.5.

Figure 1.5: Air Openings – All Air from Outdoors through Horizontal Ducts

b.One Permanent Opening Method: Provide one permanent opening beginning within 12 inches (305 mm) of the top of the space. The opening shall communicate directly with the outdoors, communicate through a vertical or horizontal duct, or communicate with a space that freely communicates with the outdoors. The openings shall have a minimum free area of 1 in2 per 3000 Btu/hr of total rated input for all appliances in the space and not less than the sum of the cross-sectional areas of all vent connectors in the space. The gas fired equipment shall have clearances of at least 1 inch (25 mm) from the sides and back and 6 inches (150 mm) from the front of the appliance. See Figure 1.6 for this arrangement.

Figure 1.6: Air Openings – All Air from Outdoors through One Opening

5.Combination Indoor and Outdoor Combustion Air: If the required volume of indoor air exceeds the available indoor air volume, outdoor air openings or ducts may be used to supplement the available indoor air provided:

a.The size and location of the indoor openings comply with Subsection 3.

b.The outdoor openings are to be located in accordance with Subsection 4.

c.The size of the outdoor openings are to be sized as follows:

⎛

Vavail

⎝

Areq = Afull x ⎜1 –

Vreq

⎜

⎝

⎛

where:

Areq = minimum area of outdoor openings. Afull = full size of outdoor openings calculated

in accordance with Subsection 4. = available indoor air volume

= required indoor air volume

6.Engineered Installations: Engineered combustion air installations shall provide an adequate supply of combustion, ventilation, and dilution air and shall be approved by the authority having jurisdiction.

7.Mechanical Combustion Air Supply:

a.In installations where all combustion air is provided by a mechanical air supply system, the combustion air shall be supplied from the outdoors at the minimum rate of 0.35 ft3/min per 1000 Btu/hr (0.034 m3/min per 1000 W) of the total rated input of all appliances in the space.

b.In installations where exhaust fans are installed, additional air shall be provided to replace the exhaust air.

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Contents Series DE Table of Contents Using this Manual Installation SequenceSpecial Attention Boxes Clearance from Combustible Construction PreinstallationAccessibility Clearances AIR for Combustion and VentilationWhere Ifan = Input of the fan assisted appliances in Btu/hr Required Volume other =Air Openings All Air from Outdoors through Vertical Ducts Mechanical Combustion Air SupplyInstallation Survey Planning the LayoutCombustion Air Ducts Boiler SET-UP Water Piping and Controls Boiler Supply and ReturnSafety Relief Valve Parallel Hook-up with Water ChillerPiping for Zoned Systems Zone Piping with Zone ValvesFreeze Protection Expansion TankINDIRECT-FIRED Water Heater For new or existing systems that must be freeze- protectedChimney Venting VentingGeneral Direct Exhaust Horizontal VentingEquivalent Vent Length Direct Exhaust, Sidewall Venting with Vertical Off-Set Direct Exhaust Vertical Venting Direct Exhaust Sidewall VentingBoiler Removal from Common Venting System Seal any unused openings in the common venting systemGAS Piping Gas Connection to BoilerNatural Gas Wiring Controls Zoned System WiringElectrical Wiring and Connection Diagram Sequence of OperationIgnition System Operating Sequence Zone Wiring with Zone Valves START-UP Procedures Completing the InstallationValve Tapping and Adjustment Screw Locations For Your Safety Read Before Lighting Checking Burner Input Adjustment of GAS Pressure RegulatorControl Descriptions See .1 in Electrical for locations of these devicesCHECK-OUT Procedure START-UP Procedures Troubleshooting Troubleshooting GuidesMeasuring Suction Pressure Procedure For Measuring Fan Suction Pressure Boiler Troubleshooting Guide Burners Functioning See FigureBoiler Troubleshooting Guide Burners Not Functioning Maintenance Daily with Boiler in USE Weekly with Boiler in USEMonthly with Boiler in USE Annually Before Start of Heating Season Intermittent Pilot and Main Burner FlameBoiler Dimensions & Ratings Series DE Boiler RatingsRepair Parts Repair Parts Series DE GAS BoilerBase/Burners/Manifold Repair Parts Page Page Series DE

DE specifications

PB Heat DE, recognized for its exceptional heating appliances, is a leading manufacturer of high-efficiency boilers and hydronic heating systems. With a commitment to quality and innovation, PB Heat DE has established itself as a trusted name in the home heating industry. The company emphasizes energy efficiency, reliability, and user comfort, ensuring that their products meet the diverse needs of residential and commercial customers alike.

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