HTP phoenix plus PHP260-119 - Part 6 - Condensate Removal

LP-454 Rev. 004 Rel. 002 Date 12.1.17
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NOTE: Check with your local gas company to determine if combustion
condensate disposal is permitted in your area. In the state of
Massachusetts, condensate must be neutralized before entering a
drain.
This condensing high eciency water heater has a condensate removal
system. Condensate is water vapor derived from combustion products,
similar to that produced by 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 lter of lime crystals, marble,
or phosphate chips will neutralize slightly acidic condensate. This can
be installed in the eld and purchased from HTP (p/n 7450P-212).
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 overow 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 lter if required by local codes.
Power to the optional condensate pump is continuous. When the
water heater is powered o the condensate pump will remain on.
It is important to remember to turn o the condensate pump when
powering down the water heater. Failure to do so could result in
property damage, severe personal injury, or death.
Figure 19 - Condensate Piping
NOTES:
1. Condensate line must be pitched at least ¼” per foot to properly
drain. If this cannot be done, or a very long length of condensate
hose is used, increase the condensate line to a minimum of 1” ID and
place a tee in the line after the condensate neutralizer to properly
reduce vacuum lock in the drain line.
2. PVC or CPVC pipe should be the only material used for condensate
line. Steel, brass, copper, and other metals will be subject to corrosion
or deterioration.
3. A frozen condensate line could result in a blocked vent condition.
It is very important to protect the condensate line from freezing
temperatures or any type of blockage. In installations that may
encounter sustained freezing conditions, the use of heat tape
is recommended to avoid freezing of the condensate line. It is
also recommended to bush up the condensate line size to 1” and
terminate condensate discharge as close to the unit as possible.
Longer condensate runs are more prone to freezing. Damages due
to frozen or blocked condensate lines ARE NOT covered by warranty.
4. Support of the condensate line may be necessary to avoid
blockage of the condensate ow.
Part 6 - Condensate Removal