Page 6 | SERIES 28A BOILER INSTALLATION AND OPERATION INSTRUCTIONS |
VENT CONNECTIONS
WARNING: Never modify or alter any part of the boiler’s smoke hood. This includes the removal or alteration of any baffles. Never install a vent pipe of a diameter different than that of the boiler smoke hood outlet. Failure to comply with this warning can result in severe personal injury or death.
Locate the boiler as close to the chimney as possible. Use the shortest, straightest vent connector possible for the installation. If horizontal runs exceed 5 ft, 1.5 m they must be supported at 3 ft, 0.9 m intervals with overhead hangers. Use a single wall stainless or single wall galvanized steel vent pipe the same diameter as the flue collar to connect the boiler to a masonry chimney. When using an approved metal chimney system use the appropriate vent connector. The vent connector should be sloped up toward the chimney at a minimum rate of 1/4 in/ft, 2 cm/m. On masonry chimneys the connector must terminate flush with the inside of the chimney flue. Fasten each single wall vent connection with at least 3 corrosion resistant sheet metal screws.
The vent materials used in positive pressure vent systems must be certified to UL 1738 for installations in the United States, ULS636 for installations in Canada. The following manufactures have systems that meet these requirements:
38 Hayward Street
Greenfield, MA 01301, (800)
20 Commerce Park
North, Bedford, NH
Protech Systems Inc.
26 Gansevoort Street,
Albany, NY 12202 (518)
WARNING: Breeching under positive pressure must be certified to UL 1738 for installations in the United States, ULS636 for installations in Canada. Type B1 vent SHALL NOT be used. Failure to comply with this warning can result in severe personal injury or death.
Always provide a minimum clearance of 6 inches between single wall metal vent pipe and all combustible materials.
WARNING: Failure to maintain minimum clearances between vent connectors and any combustible material can result in a fire causing extensive property damage, severe personal injury or death!
COMMON VENT SYSTEMS
If an existing boiler is removed from a common venting system, the common venting system may then be too large for the proper venting of the remaining appliances connected to it. At the time of removal of an existing boiler, the following steps shall be followed with each appliance remaining connected to the common venting system placed in operation, while the other appliances remaining connected to the common venting system are not in operation.
Au moment du retrait d'une chaudière existante, les mesures suivantes doivent être prises pour chaque appareil toujours raccordé au système d'évacuation commun et qui fonctionne alors que d'autres appareils toujours raccordés au système d'évacuation ne fonctionnent pas: système d'évacuation
a)Seal any unused openings in the common venting system.
Sceller toutes les ouvertures non utilisées du système d'évacuation.
b)Visually inspect the venting system for proper size and horizontal pitch and determine there is no blockage or restriction, leakage, corrosion and other deficiencies which could cause an unsafe condition.
Inspecter de façon visuelle le système d'évacuation pour déterminer la grosser et l'inclinaison horizontale qui conviennent et s'assurer que le système est exempt d'obstruction, d'étranglement de fruite, de corrosion et autres défaillances qui pourraient présenter des risques.