Quadra-Fire CASTILEI-MBK Owner's Manual Installation And Operation

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Quadra-Fire CASTILEI-MBK Owner's Manual Installation And Operation Manual pdf 7 page image

May 12, 2014 7022-122D Page 7Castile Pellet InsertE. Avoiding Smoke and OdorsNegative Pressure, Shut-Down and Electrical PowerFailureTo reduce the probability of back-drafting or burn-back inthe pellet appliance during power failure or shut down con-ditions, it must be able to draft naturally without exhaustblower operation.Negative pressure in the house will resist this natural draftif not accounted for in the pellet appliance installation.Heat rises in the house and leaks out at upper levels. Thisair must be replaced with cold air from outdoors whichflows into lower levels of the house.Vents and chimneys into basements and lower levels of thehouse can become the conduit for air supply and reverseunder these conditions.Outside AirAn outside air kit is recommended in all installations. TheOutside Air Kit must be ordered seperately.Per national building codes, consideration must be givento combustion air supply to all combustion appliances.Failure to supply adequate combustion air for all appliancedemands may lead to backdrafting of those and otherappliances.When the appliance is roof vented (strongly recommended):The air intake is best located on the exterior wall ori-ented towards the prevailing wind direction during theheating season.When the appliance is side-wall vented:The air intake is best located on the same exterior wallas the exhaust vent outlet and located lower on the wallthan the exhaust vent outlet.The outside air supply kit can supply most of the demandsof the pellet appliance, but consideration must be given tothe total house demand.House demand may consume the air needed for the appli-ance. It may be necessary to add additional ventilation tothe space in which the pellet appliance is located.Consult with your local HVAC professional to determinethe ventilation demands for your house.Vent ConfigurationsTo reduce probability of reverse drafting during shut-downconditions Hearth & Home Technologies strongly recom-mends:• Installing the pellet vent with a minimum vertical run of5 feet (1.52m). Preferably terminating above the roofline.• Installing the outside air kit at least 4 feet (1.22m)below the vent termination.To prevent soot damage to exterior walls of the house andto prevent re-entry of soot or ash into the house:• Maintain specified clearances to windows, doors andair inlets, including air conditioners.• Vents should not be placed below ventilated soffits.Run the vent above the roof.• Avoid venting into alcove locations.• Vents should not terminate under overhangs, decks oronto covered porches.• Maintain minimum clearance of 6 inches (152mm)from the vent termination to the exterior wall. If yousee deposits developing on the wall, you may need toextend this distance to accommodate your installationconditions.NOTEThis fireplace insert must be installed with a continuouschimney liner of 3” or 4” diameter extending from thefireplace insert to the top of the chimney. The chimneyliner must conform to the class 3 requirements of CAN/ULC-S635 Standard for Lining Systems for Existing Masonry ofFactory-Built Chimneys and Vents, or CAN/ULC-S640, Standard forLining Systems for New Masonry Chimneys.