Bard W24G1-A Installation Instructions Manual

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Bard W24G1-A Installation Instructions Manual Manual pdf 11 page image

Manual 2100-525APage 11 of 677. WALL MOUNTING INFORMATION1. Two holes for the supply and return airopenings must be cut through the wall asdetailed in Figure 4.2. On wood-frame walls, the wall constructionmust be strong and rigid enough to carry theweight of the unit without transmitting any unitvibration.3. Concrete block walls must be thoroughlyinspected to insure that they are capable ofcarrying the weight of the installed unit.8. MOUNTING THE UNIT1. These units are secured by wall mountingbrackets which secure the unit to the outsidewall surface at both sides. A bottom mountingbracket is provided for ease of installation butis not required.2. The W42G, W48G and W60G models aresuitable for 0 inch clearance on the installationmounting wall and to the top. For all models thesupply air duct flange and the first 3 feet ofsupply air duct require a minimum of 1-inchclearance to combustible material. The W24G,W30G and W36G models are suitable for 0 inchclearance on the installation mounting wall, butrequire 1-inch clearance to the top if combustiblematerial overhang projects above the unit. SeeFigure 3 and 3A. If a combustible wall, use aminimum of Figure 1 “A” dimension plus 2inches and “B” dimension plus 2 inches. SeeFigures 4 and 5 for details.3. Locate and mark lag bolt locations and bottommounting bracket location.4. Mount bottom mounting bracket.5. Hook top rain flashing under back bend of top.Top rain flashing is shipped secured to the rightside of the back.6. Position unit in opening and secure with 5/16lag bolts; use 7/8 inch diameter flat washers onthe lag bolts. Use lag bolts long enough tosupport the unit’s weight when mounted to thestructure. This length may be dependant on thetype of construction.7. Secure rain flashing to wall and caulk acrossentire length of top. See Figure 3.8. On side-by-side installations, maintain aminimum of 20 inches clearance on right sideto allow access to control panel and burnercompartment, and to allow proper airflow to theoutdoor coil. Additional clearance may berequired to meet local or national codes.CAUTIONIf the bottom bracket is used, be certain thebracket is secured to the outside wall surfacein a way sufficient to support the entire weightof the unit during installation until sidemounting brackets are secured.WARNINGFailure to provide the one inch clearancebetween the supply duct and a combustiblesurface for the first three feet of duct canresult in fire causing damage, injury or death.