Install Instructions

36
Condensate Drain Connection
This is a condensing water heater and requires a drain to allow the condensate
to discharge safely. If a drain is not in close proximity, a condensate pump may
be required to pump the condensate to the closest drain. A self-priming trap is
integrated in the condensate/pressure tube, allowing the connection to the ½”
(1.3 cm) port to run directly to the drain without an external trap connected. The
preferred connection to the condensate port is with plastic pipe and fittings.
Tubing is an acceptable alternative to plastic pipe. If tubing is applied, ensure it
is properly secured. Ensure that no part is elevated above the drain port. Make
sure that the condensate trap and components comply with local codes. Verify
all condensate tubing is properly connected from the blower for proper
drainage. DO NOT use copper tubing, iron, or steel pipe for the condensate
drain line. Verify that the condensate drain line slopes down, away from the
water heater at least ⅛”/ft. (.3 cm/.3 m) toward the drain. Upon initial startup, a
gurgling sound may come from the condensate drain while the trap is being
primed. This gurgle will cease once the trap is primed.
Figure 12
CAUTION
The condensate drain pipe must NOT be routed through an area subject to
below freezing temperatures. Ensure that the condensate can drain freely and
free of debris to allow proper operation. DO NOT install any portion of the
condensate trap above the condensate port on the water heater. Blockage of
the condensate will make the water heater inoperable. Verify all tubing for
condensate is properly connected from the blower for proper drainage.
IF A DRAIN IS NOT IN CLOSE PROXIMITY, A CONDENSATE PUMP MAY BE
REQUIRED TO PUMP THE CONDENSATE TO THE CLOSEST DRAIN.
IMPORTANT
Condensate from this water heater is mildly acidic. Please note that some
local codes require that condensate is treated by using a pH neutralizing
filter prior to disposal.