Rheem 95 Direct Vent Indoor Series Use and Care Manual - Page 10

Installing the water heater: 94° Elbow Fire Stop 12" (min) (30 cm) do1w/4n"wpaerrdfosolotpe Wall Plates Vent Pipe Ceiling Board Inspection Access Panel #1 (optional) Inspection Access Panel #2 (optional) Venting Through Closed Spaces Follow local codes and vent manufacturer's installation instructions. For maintenance and inspection purposes two (2) inspection access panels large enough to allow access for venting inspection may be required. One (1) of these access panels should be close to where the concentric vent pipe enters the ceiling. The other access panel should be near the vent termination. Appliance Vent Adapter Metal Fab Inc., standard concentric vent pipe can be installed into the water heater collar without an appliance vent adapter. However, other Rheem approved vent manufacturer pipe cannot be installed without a UL approved Category III Stainless Steel appliance concentric vent adapter. Notice: To install the appliance vent adapter, please follow the appliance vent adapter manufacturer's instructions. CAUTION: Condensate is known to be acidic;; refer to local, state (provincial) or federal codes for proper handling and discharge methods. CAUTION: Condensate must drain away from the water heater and should not be allowed to enter the water heater. WARNING: Failure to provide a vent condensate drain close to the appliance could allow acidic flue gas condensate to enter into appliance flueways, causing premature failure of the water heater. WARNING: If the condensate collector is not used, the drain fitting must be capped to prevent exhaust gases and condensate from entering the building. The cap is supplied on the water heater. Draining the Condensate Provision should be made to collect and dispose of condensate from venting systems. When a water heater is vented horizontally, the vent pipe can have a DOWNWARD or UPWARD slope towards the termination. If an UPWARD slope is used, always attach a drain hose to the drain fitting and plumb the hose to a sanitary sewer drain. See Examples A and B on pages 13 and 14 for DOWNWARD and UPWARD slope for horizontally vented water heaters. When a water heater is vented vertically, an UPWARD slope must always be used. See the diagram on page 14 showing UPWARD slope for vertically vented water heaters. Always attach a drain hose to the drain fitting and plumb the hose to a sanitary sewer drain. A high temperature silicone tubing suitable for use with acidic condensate and appropriate for the temperature range should be used. The drain tube is fashioned into a "pigtail" trap and must be filled with water to prevent flue gases from emitting into the building prior to operating the appliance. (see diagram) 0XVWEH¿OOHGZLWKZDWHUWRSUHYHQW gasses from backing into building Condensate Drain Line (to suitable drain) 10 AP15317 (10_09) DV Gas Manual 10 30 09.indd 10 11/9/2009 3:10:25 PM