Bard WH361 Installation Instructions Manual

Also see for WH301: Specifications Installation instructions

Manual 2100-193OPage 9 of 26INSTALLATION INSTRUCTIONSWALL MOUNTING INFORMATION1. Two holes, for the supply and return air openings,must be cut through the wall as shown in Figure 3.2. On wood-frame walls, the wall construction must bestrong and rigid enough to carry the weight of theunit without transmitting any unit vibration.3. Concrete block walls must be thoroughly inspectedto insure that they are capable of carrying theweight of the unit installed.MOUNTING THE UNIT1. These units are secured by wall mounting bracketswhich secure the unit to the outside wall surface atboth sides. A bottom mounting bracket is providedfor ease of installation, but is not required.2. The unit itself is suitable for “0” inch clearance, butthe supply air duct flange and the first 3 feet of supplyair duct require a minimum of 1/4 inch clearance tocombustible material. If a combustible wall, use aminimum of 28½" x 8½" dimensions for sizing.However, it is generally recommended that a 1-inchclearance is used for ease of installation andmaintaining the required clearance to combustiblematerial. The supply air opening would then be30" x 10". See Figures 3, 4, 7 and 8 for details.3. Locate and mark lag bolt locations and bottommounting bracket location. See Figure 3.4. Mount bottom mounting bracket, if used.5. Hook top rain flashing under back bend of top. Toprain flashing is shipped secured to the back of the uniton the right side.6. Position unit in opening and secure with 5/16 lagbolts; use 7/8 inch diameter flat washers on the lagbolts.7. Secure rain flashing to wall and caulk across entirelength of top. See Figure 3.8. For additional mounting rigidity, the return air andsupply air frames or collars can be drilled andscrewed or welded to the structural wall itself(depending upon wall construction). Be sure toobserve required clearance if combustible wall.9. On side-by-side installations, maintain a minimum of20 inches clearance on right side to allow access toheat strips and control panel and to allow properairflow to the outdoor coil. Additional clearance maybe required to meet local or national codes.TOP OUTLET ONLY1. Remove airframe angles from the back of the unit.2. Coat angles with two 1/8" beads of silicone as shown.Silicone is shipped in the control panel. See Figure 5.3. Secure angles to the top of the unit with 14 screwsprovided. Use prepunched holes provided. Do notrelocate. See Figure 5.4. After installation of duct work, seal around airframeand duct work to provide a rain tight seal.5. It is strongly recommended, but not required, that thisunit be installed under a soffit area large enough toshield the top of the unit. See Figure 6.WARNINGFailure to provide the 1/4 inch clearancebetween the supply duct and a combustiblesurface for the first 3 feet of duct can resultin fire.WARNINGFire hazard can result if 1/4 inch clearanceto combustible materials for supply air ductis not maintained. See Figure 3.