RBI Dominator Series Installation & Operating Instructions Manual

RBI Dominator Series Installation & Operating Instructions Manual Manual pdf 11 page image

Fi d b b il & h B il M lFinned copper tube gas boilers & water heaters – Boiler Manual11FFHorizontal vent systems shall terminate at least 4 ft, 1.2 m below,4 ft, 1.2 m horizontally from or 1 ft, 0.3 m above any door, windowor gravity air inlet into any building. It must not terminate less than4 ft, 1.2 m horizontally from, and in no case above or below, unlessa 4 ft, 1.2 m horizontal distance is maintained, from electric meters,gas meters, regulators and relief equipment and not less than 7 ft,2.1 m from any adjacent public walkway. The bottom of the ventterminal(s) shall be located at least 5 ft, 1.5 m above the air intaketerminal(s) unless there is a minimum 5 ft, 1.5 m horizontalseparation between them. Avoid terminal locations likely to beaffected by winds, snow drifts, people and pets. Protect buildingmaterials and vegetation from degradation caused by the flue gases.Vertical Direct Vent Systems - See Figure 6The maximum length for the vertical vent and combustion airpipes is 35 ft, 10.7 m plus two 90° elbows for each. If any part of asingle wall metal vent system passes through an unheated space itmust be insulated with insulation rated for 400°F, 204°C. Structualpenetrations must be made using approved fire-stops.A listed, nonrestrictive vent cap must be used. The top of a verticalvent system must extend at least 5 1/2 ft, 1.7 m above the roofsurface that it passes through, 4 ft, 1.2 m above the intake air cap,see Figure 6.HORIZONTAL VENT, NEGATIVE PRESSURE,CATEGORY IIn this configuration a wall-mounted power venter must be usedto pull the flue products horizontally from the unit and vent themto the outdoors, see Figures 3, 4 & 5. The air for combustion is takenfrom the space in which the unit is installed, or from the outdoors.The applicable instructions under the “COMBUSTION AIR &VENTILATION” section must be followed!To maximize the performace of single wall sheet metal vent systemslocate 90° elbows as far from the boiler as possible and from oneanother. For best results, horizontal vent systems should be as shortand straight as possible.When horizontal vent runs exceed 5 ft, 1.5 m they must be supportedat 3 ft, 0.9 m intervals with overhead hangers. The vent system mustbe pitched down, toward the vent terminal, 1/4 in/ft, 20 mm/m. Ifany part of a single wall metal vent system passes through an unheatedspace it must be insulated with insulation rated for 400°F, 204°C.Horizontal vent systems shall terminate at least 4 ft, 1.2 m below,4 ft, 1.2 m horizontally from or 1 ft, 0.3 m above any door, windowor gravity air inlet into any building. It must not terminate less than4 ft, 1.2 m horizontally from, and in no case above or below, unlessa 4 ft, 1.2 m horizontal distance is maintained, from electric meters,gas meters, regulators and relief equipment and not less than 7 ft,2.1 m from any adjacent public walkway. The bottom of the ventterminal(s) shall be located at least 5 ft, 1.5 m above the air intaketerminal(s) unless there is a minimum 5 ft, 1.5 m, horizontalseparation between them. Avoid terminal locations likely to beaffected by winds, snowdrifts, people and pets. Protect buildingmaterials and vegatation from degradation caused by the flue gases.To determine the appropriate power venter for the boiler/waterheater, see Table 6, Power Venter Sizes. Follow the power ventermanufacturer’s installation instructions.Table 6 Power Venter SizesDominator Power Venter Max. Pipe LengthModel Model ft mm300 HS-1 30* 9400 HS-2 100 31600 HS-2 67** 21750-900 HS-3 100 311050-1350 HS-4 100 311500-2100 HS-5 100 31*These sizes are based on a 20 ft, 6.1m chimney height.**Choose HS-3 for o100ft, 31 m, Max. Pipe Length.OUTDOOR VENTINGWhen installed outdoors the Dominator must be fitted with thefactory supplied outdoor vent hood and air intake hood, see Figure8. Multiple units must be spaced per Figure 9.The boiler/water heater must be at least 10 ft, 3.0 m from any door,window or gravity air inlet into any building and at least 3 ft, 0.9 mfrom any overhang unless local codes dictate differently.Avoid locations where wind deflection off of adjacent walls, buildingsor shrubbery might cause a down draft. The unit(s) should belocated at least 3 ft, 0.9 m from structures. Outdoor installationsare not recommended in areas where the danger of snow blockageexists.Do not place the boiler/water heater in a location thatwould subject it to runoff from adjacent buildings ordamage may occur voiding the warranty!