Bard W12AAA Installation Instructions Manual

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Bard W12AAA Installation Instructions Manual Manual pdf 8 page image

Manual 2100-618Page 8 of 21INSTALLATION INSTRUCTIONSWALL MOUNTING INFORMATION1. These units are secured by wall mounting bracketswhich secure the unit to the outside wall surface atboth sides.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 the weightof the installed unit.MOUNTING THE UNIT1. Two holes, for the supply and return air openings,must be cut through the wall as shown in Figure 3.2. Locate and mark lag bolt locations, if desired. SeeFigure 3.3. Hook top rain flashing under back bend of top. Toprain flashing is shipped attached to the back of theunit on the right side.4. Position unit in opening and secure with 5/16 lagbolts; use 7/8 inch diameter flat washers on the lagbolts.5. Secure rain flashing to wall and caulk across entirelength of top. See Figure 3.6. For additional mounting rigidity, the return airand supply air frames or collars can be drilledand screwed or welded to the structural wall itself(depending upon wall construction). Be sure toobserve required clearance if combustible wall.7. On side-by-side installations, maintain a minimumof 20 inches clearance on right side to allow accessto control panel and allow proper airflow to outdoorcoil. Additional clearance may be required to meetlocal or national codes.