Condensate Disposal - Smith XWH 150 Instruction Manual

CONDENSATE DISPOSAL

CONDENSATE DRAIN
1. This water heater is a high efficiency appliance that produces
condensate.
2. The side of the water heater has a 1/2 inch PVC union for
connection of a 1/2 inch PVC pipe (Figure 73).
3. Slope condensate tubing down and away from the water
heater into a drain or condensate neutralizing filter.
Condensate from the XP water heater will be slightly acidic
(typically with a pH from 3 to 5). Install a neutralizing filter if
required by local codes.
A Neutralizer Kit (Figure 73) is available from the factory
(100274677 for Models 150 - 500 and 100274676 for Models
600 - 800).
4. Install the 1/2 inch PVC elbow (field supplied) as shown in
Figure 73.
5. Do not expose condensate line to freezing temperatures.
6. Use only plastic tubing or piping as a condensate drain line
(Figure 73).
NOTE: Use materials approved by the authority having
jurisdiction. In the absence of other authority, PVC and CPVC
pipe must comply with ASTM D1785 or D2845. Cement and
primer must comply with ASME D2564 or F493.
NOTE: To allow for proper drainage on large horizontal runs, a
second line vent may be required and tubing size may need to
increase to 1 inch.
The condensate line must remain unobstructed, allowing free
flow of condensate. If condensate is allowed to freeze in the
line or if the line is obstructed in any other manner, condensate
can exit from the water heater tee, resulting in potential water
damage to property.
NOTE: DO NOT combine condensate drains from multiple
condensing appliances.
Figure 73. Condensate Disposal
49