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H. CONDENSATE REMOVAL SYSTEM
This condensing high efficiency appliance has a condensate removal system. Condensate is water vapor
derived from combustion products, similar to an automobile when it is initially started. It is very important
that the condensate line is sloped down away from the heater and to a suitable drain.
If the heater condensate outlet is lower than the drain, you must use a condensate removal pump (kit p/n
554200 available from HTP). If required by local authorities, a condensate filter of lime crystals, marble, or
phosphate chips will neutralize slightly acidic condensate. This can be installed in the field and purchased
from HTP (p/n 7450P-212).
Figure 23
The condensate line must remain unobstructed. If allowed to freeze in the line or obstructed in any other
manner, condensate can exit from the water heater tee, resulting in potential water damage to property.
When installing a condensate pump, select one approved for use with condensing heaters and furnaces.
The condensate pump should have an overflow switch to prevent property damage from spillage.
Condensate from the heater will be slightly acidic (pH from 3.2 to 4.5). Install a neutralizing filter if
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