Rheem 95 Direct Vent Indoor Series Use and Care Manual - Page 14

Installing the water heater: Vertical Vent Termination Location Only Rheem approved termination and parts should be used during installation. The location of the vent terminal depends on the following minimum clearances and considerations (see diagram at left): M inimum twelve (12) inches (30 cm) above roof.2 M inimum twelve (12) inches (30 cm) above anticipated snow level. M aximum twenty-­four (24) inches (60 cm) above roof level without additional support for vent. Vent Pipe Through Roof Min. 12" (30 cm) Above Roof 1 Min. 12" (30 cm) Above Anticipated Snow Level. Max. 24" (60 cm) Above Roof (Without Additional Support) F our (4) feet (1.2 m) from any gable, dormer or other roof structure with building interior access (i.e., vent, window, etc.). T en (10) feet (3 m) from any forced air inlet to the building. Any fresh or make-­up air inlet such as a dryer or furnace area is considered to be a forced air inlet.3 1 Min. 18" (46 cm) Above Roof for installations in Canada. 2 For installations in Canada 18" (45.7 cm). 3 For installations in Canada 6' (1.8 m). Vertical Vent Installation Notice: Only Rheem approved termination and parts should be used during installation. Notice: Follow vent manufacturer's installation instructions and their required clearances to combustibles as required. A fire stop plate should be installed at every penetration of a floor or ceiling if the vent is not running in a fire-­rated shaft. Maintain the required air space clearance to combustible materials and building insulation. Once the vent terminal location has been determined, make a hole through the roof and interior ceiling to accommodate the vent pipe. Complete the vent pipe installation to the water heater's vent connector fitting on the water heater vent collar outlet. Support Storm Collar 3"/ 5" Concentric Pipe Support Clamp Chase Requires 0" (0 cm) Clearance to Combustibles Concentric Vent Pipe has 0" Clearance Requirment Vertical Termination Air Intake Adjustable Roof Flashing Firestop/Support Plate vertical or horizontal runs as previously mentioned. If required, use silicone sealant at the point the vent connector joins the water heater. Install adequate flashing where the vent pipe passes through the roof. Determine the vent terminal height and install the vent pipe accordingly. Refer to the diagram above for proper vent terminal height. The vent roof system must terminate at least 1 foot (30 cm) above the roof line and at least 2 feet (61 cm) higher than any portion of the building within 10 feet (3 m). Install supports every 5 feet (1.5 m) vertically along the vent pipe route. Vertical supports are required after every transition to vertical and are required after every offset elbow. When the vent is free-­standing and penetrates a roof/ceiling, another means of support must be used at a second location. Follow the vent manufacturer's recommended installation instructions provided with the vent purchased from the manufacturer. 1/4" per foot upward slope on horizontal run Firestop 12" (min) (30 cm) Support Hanger Condensate Drain Line Form a Trap in the drain line. Vertical Vent Installation with Horizontal offset Straight Vertical Vent Installation To Drain: Dispose of condensate in accordance to local codes 14 Standard Vertical Vent Termination AP15317 (10_09) DV Gas Manual 10 30 09.indd 14 11/9/2009 3:10:26 PM