Harsco Industrial C1500H Installation & Owner's Manual page 28

3.5.5 Removing an Existing Boiler
(From a common venting system)
When an existing boiler is removed from a common venting system, the common venting system is likely to be too
large for proper venting of the appliances remaining 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.
1. Seal any unused openings in the common venting system.
2. Visually inspect the venting system for proper size and horizontal pitch and determine that there is non blockage
or restriction, leakage, corrosion or other deficiencies which could cause an unsafe condition.
3. Insofar as is practical, close all building doors and windows and all doors between the space in which the
appliances remaining connected to the common venting system are located and other spaces of the building.
Turn on clothes dryers and any appliance not connected to the common venting system. Turn on any exhaust
fans, such as range hoods and bathroom exhausts, so they will operate at maximum speed. Do not operate a
summer exhaust fan. Close fireplace dampers.
4. Place in operation the appliance being inspected. Follow the lighting instructions. Adjust the thermostat so that
the appliance will operate continuously.
5. Test for spillage at the draft hood relief opening after 5 minutes of main burner operation. Use the flame of a
match or candle, or smoke from a cigarette, cigar or pipe.
6. After it has been determined that each appliance remaining connected to the common venting system properly
vents when tested as outlined above, return doors, windows, exhaust fans, fireplace dampers and any other gas-
burning appliance to their previous conditions of use.
Any improper operation of the common venting system should be corrected so the installation conforms with the
National Fuel Gas Code, ANSI Z223.1/NFPA 54 and/or CAN/CSA B149.1, Natural Gas and Propane Installation
Code. When resizing any portion of the common venting system, the common venting system should be resized to
approach the minimum size as determined using the appropriate tables in Appendix F in the National Fuel Gas Code,
ANSI Z223.1/NFPA 54 and/or CAN/CSA B149.1, Natural Gas and Propane Installation Code.
Suppression d'une chaudière existante
(D'un système de ventilation commun)
Quand une chaudière existante est retirée d'un système commun de la ventilation, le système de ventilation commun
est susceptible d'être trop grande pour la ventilation correcte des appareils restant connecté à elle.
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:
1. Sceller toutes les ouvertures non utilisées du système d'évacuation.
2. Inspecter de façon visuelle le système d'évacuation pour déterminer la grosseur et l'inclinaison horizontale qui
conviennent et s'assurer que le système est exempt d'obstruction, d'étranglement, de fuite, de corrosion et autres
défaillances qui pourraient présenter des risques.
3. Dans la mesure du possible, fermer toutes les portes et les fenêtres du bâtiment et toutes les portes entre
l'espace où les appareils toujours raccordés au système d'évacuation sont installés et les autres espaces du
bâtiment. Mettre en marche les sécheuses, tous les appareils non raccordés au système d'évacuation commun et
tous les ventilateurs d'extraction comme les hottes de cuisinière et les ventilateurs des salles de bain. S'assurer
que ces ventilateurs fonctionnent à la vitesse maximale. Ne pas faire fonctionner les ventilateurs d'été. Fermer les
registres des cheminées.
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MACH Gas Fired Boiler