11and/or cause a downdraft in the venting system through abarometric damper if installed. Spillage of flue productsfrom the venting system into an occupied living space cancause a very hazardous condition that must be immediatelycorrected.2.3 OUTDOOR VENTINGThe DynaFlame windproof cabinet protects the unit fromweather, when fitted with the factory supplied air intake andUL approved vent cap (93-0298), it will be self-venting andsuitable for outdoor installation.1. Outdoor models must be installed outdoors and mustuse the Air Intake and Vent Cap supplied by CamusHydronics.2. Periodically check to ensure that air intake and ventcap are not obstructed.3. Locate appliance at least 3 feet away from anyoverhang.4. Locate appliance at least ten feet from building airintake.5. Avoid installation in areas where runoff from adjacentbuilding can spill onto appliance.For outdoor installations, always consider the use of ashelter such as a garden shed in lieu of direct exposure ofthe appliance to the elements. The additional protectionafforded by the shelter will help to minimize nuisanceproblems with electrical connections and will allow easierservicing of the appliance under severe weather conditions.2.4 THRUWALL VENTINGWhen fitted with the factory supplied vent terminal, theDynaFlame can vent up to 100 equivalent feet. Elbows canrange from 7 to 19 feet in equivalent length depending oncentreline radius. Vent sizes are 6" for Model 500, 8" forModels 750, 1100 & 1200, 10” for Models1500 & 1750, 12”for Models 2000, 2500 & 3000, and 14” for Models 3500,4000, 4500 & 5000Appliances may be installed with either a horizontalsidewall vent or vertical roof top vent. Terminals differ witheach application. Horizontal lengths over 5 feet must beinstalled using corrosion resistant stainless steel. Usesingle wall vent and seal all joints or use pressure rateddouble wall vent.When using single wall vent, all vent connector seams andjoints must be sealed with pressure sensitive aluminiumtape or silicone sealant as specified by the ventmanufacturer. Aluminium tape must meet the provisions ofSMACNA AFTS-100-73 Standard.When venting through unheated spaces, use ventingmaterial which will minimize flue gas condensation insidethe vent. Provisions must be made for collecting anddisposing of any condensation which may occur. Theauthorities having jurisdiction must approve venting.Periodically check to ensure that the vent terminal isunobstructed.This venting system uses the appliance’s internalcombustion air fan to force the flue products outhorizontally. Vent cap and venting must be listed typeCategory IV vent materials.The DynaFlame fan generates a positive pressure in theflue. Combustion air is drawn from the equipment room TheTHRUWALL termination caps are available from the factoryas a kit.Refer to local codes for proper installation and location ofvent terminals.2.4.1 THRUWALL Vent Cap (14-0090) THRUWALLIntake Air Cap (14-0101)• The THRUWALL vent cap kit includes the wallpenetration assembly and the discharge screenassembly.• The opening through the wall for installation of theTHRUWALL vent cap must provide an air spaceclearance of 1 inch (2.5cm) around the flue pipe. Thediameter of the opening for installation of theTHRUWALL vent cap will be 2 inches (5cm) largerthan the nominal diameter of the installed vent pipe tothe THRUWALL vent cap. The diameter of the openingfor the air inlet cap will be the same as the nominalsize of the pipe.• Install the proper vent pipe to the vent cap (provided byCamus Hydronics).• Follow all requirements in the General Venting sectionsfor venting flue products to the outdoors.Table 5 – Vent and Air Inlet Cap SizeModel No. Vent and Air Inlet cap size500 6”750 8”1100 8”1200 8”1500 10”1750 10”2000 12”2500 12”3000 12”3500 14”4000 14”4500 14”5000 14”2.4.2 Location of A THRUWALL Vent Termination• The vent cap shall terminate at least 3 feet (1M) aboveany forced air inlet within 10 feet (3M) horizontally.• The vent cap MUST NOT terminate below a forced airintake at any distance.• Do not terminate the vent in a window well, stairwell,alcove, courtyard or other recessed area. The ventcannot terminate below grade.• The vent shall not terminate less than 7 feet above apublic walkway due to the normal formation of watervapour in the combustion process.• The vent system shall terminate at least 3 foot (1M)above grade, above normal snow levels and at least 7feet (2.15M) above grade when located adjacent topublic walkways.• The vent terminal shall not be installed closer than 3feet (1M) from an inside corner of an L-shaped