Raypak 302-902 Installation And Operating Instructions Manual

Raypak 302-902 Installation And Operating Instructions Manual Manual pdf 27 page image

Venting Installation TipsSupport piping:∑ horizontal runs- at least every five (5) feet.∑ vertical runs - use braces:∑ under or near elbowsFollow items listed below to avoid personal injury or property damage.∑ Cut nonmetallic intake pipe with fine-toothed hacksaw (34 teeth per inch).∑ Do not use nonmetallic intake pipe or fittings that are cracked or damaged.∑ Do not use nonmetallic intake fittings if they are cut or altered.∑ Do not drill holes, or use screws or rivets, in nonmetallic intake pipe or fittings.To make metallic vent joints:∑ Do not install seams of vent pipe on bottom of runs.∑ 100% Seal all joints and seams with silicone sealant.WARNING: Examine the venting system at least once a year. Check all joints and vent pipe connections fortightness, corrosion or deterioration.NOTE: The words "Flue Exhaust", "Flue" and "Exhaust Vent" are used interchangeably.VENTING CONFIGURATIONSFor boilers connected to gas vents or chimneys, vent installations shall be in accordance with Part 7, Venting of Equipment,of the latest edition of National Fuel Gas Code, or in Canada, the latest edition of CAN/CGA-B149.1 and .2 Installation Codefor Gas Burning Appliances and Equipment, or applicable provisions of local building codes.27Canada Installations - Refer to latest edition of CAN/CGA-B149.1 and .2A vent shall not terminate:a) Directly above a paved sidewalk or driveway which is located between two single family dwellings and serves bothdwellingsb) Less than 7 ft.(2.13m)above a paved sidewalk or paved driveway located on public propertyc) Within 6 ft(1.8m) of a mechanical air supply inlet to any buildingd) Above a meter/regulator assembly within 3 ft(900mm) horizontally of the vertical centre-line of the regulatore) Within 6 ft.(1.8m) of any gas service regulator vent outletf) Less than 1 ft.(300mm) above grade levelg) Within the 3 ft.(1m) of a window or door which can be opened in any building, any non-mechanical air supply inlet to anybuilding or the combustion air inlet of any other applianceh) Underneath a verandah, porch or deck, unless(i) the verandah, porch or deck is fully open on a minimum of two sides beneath the floor, and(ii) the distance between the top of the vent termination and the underside of the verandah, porch or deck is greaterthan 1 ft(25cm).