Condensate Drain - Vesta VH-150 Installation Manual

Condensate Drain

• All condensate must drain and be disposed of according to
local codes.
Caution • Do not cap or plug the integrated condensate line. If
prevented from draining, condensate can damage the water
heater.
• The condensate line must have a negative slope to drain
properly.
• Do not run drain outdoors. Freezing of condensate can
cause property damage.
• Do not connect the condensate drain line directly to the
rain sewer.
• Do not connect the condensate drain line with an air
conditioning evaporator coil drain.
• Use only corrosion resistant materials for the condensate
drain lines such as PVC pipe or plastic hose.
• The end of the condensate drain pipe should be open to the
atmosphere. The end should not be under water or other
substances.
The Vesta water heater creates condensation when it operates.
This condensation has an acidic pH of 3-5. Follow all local codes
and regulations when disposing of condensate from the water
heater. We recommend draining the condensate into a laundry
tub, as the alkali in laundry detergent will neutralize the acid in the
condensate. However, other suitable waste drain locations may be
used according to local codes.
Before connecting the condensate drain, choose one of the
following disposal options:
To a drain via
a neutralizer
Direct to an
external drain
External drain
(A) From the water heater directly into an external drain.
(B) From the water heater, through a neutralizing agent, and then
into an external drain.
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Installation Manual
a b c d
To a laundry
tub
To a laundry tub via a
condensate pump
Notice
• If you choose this option, the neutralizing agent must be replaced
periodically. Depletion of the neutralizing agent will vary, based on
the usage rate of the water heater. During the first year of operation,
the neutralizer should be checked every few months for depletion
and replaced as needed.
(C) From the water heater into a condensate pump, and then into a
laundry tub.
Notice
A pump can be used when there is a long distance between the water
heater and the laundry tub or when the bottom of the water heater is
lower than the top of the laundry tub.
(D) From the water heater into a laundry tub.
Notice
The bottom of the water heater must be higher than the top of the
laundry tub to use this option.
The condensate line must have a negative slope to drain properly.
To connect the condensate drain:
1
Connect a drain line to the water heater.
Notice
Use only corrosion-resistant material for the drain line, such as PVC or
CPVC. Do not reduce the size of this fitting or the drain line to less than
1/2".
2
Place the free end of the drain line into an appropriate drain.
Notice
• If you are using a condensate pump, ensure that the pump allows for
up to 2 GPH of drainage for each water heater in the system.
• If you are not using a condensate pump, ensure that the drain line is
pitched downward at a minimum slope of 1/4" per foot.
Side view