Install Instructions

9
Venting
The venting instructions must be followed to avoid restricted combustion or
recirculation of flue gases. Such conditions cause sooting or risks of fire and
asphyxiation. This water heater can be installed as either a power direct vent
system or power vent (air from inside) system. If it is installed as a direct vent
system, then the air intake and the exhaust vent are piped to the outside. If a
power vented system is used, then air is drawn from inside and only the
exhaust is piped to the outside. Determine which system is best for your
application and install as described in the following sections.
Power Direct Vent Installation
Venting may be run horizontally through an outside wall or vertically
through a roof through using either 2 in. (5.1 cm), 3 in. (7.7 cm), or 4 in.
(10.2 cm) diameter pipe. This water heater is supplied with a screened
intake elbow and exhaust coupling referred to as the air intake terminal and
the exhaust vent terminal.
Power Vent Installation
Power venting is where the indoor air is used, and the exhaust is vented to the
outside. Venting may be run horizontally through an outside wall or vertically
through a roof through using either 2 in (5.1 cm), 3 in (7.7 cm), or 4 in. (10.2
cm) diameter pipe.
WARNING
The vent system must be properly installed. Failure to properly install the vent system could
result in property damage, personal injury, or death.
DO NOT install damaged venting system components. If damage is evident then contact the
supplier where the water heater was purchased, or the manufacturer listed on the rating
plate for replacement parts.
Use only the vent terminals provided or factory authorized terminals for venting this water
heater.
The water heater requires its own separate venting system. DO NOT connect the exhaust
vent into an existing vent pipe or chimney.
All of the exhaust venting connections must be leak checked with a soap solution upon initial
startup of the water heater. Any leaks must be repaired before continuing operation of the
water heater.
DO NOT terminate the venting where noise from the exhaust or intake will be objectionable.
This includes locations close to or across from windows and doors. Avoid anchoring the
vent and intake pipes directly to framed walls, floors, or ceilings unless rubber isolation pipe
hangers are used. This prevents any vibrations from being transmitted into the living spaces.
DO NOT exceed the venting distances or the number of elbows listed in this manual.
Exceeding the maximum venting distances may cause the water heater to malfunction or
cause an unsafe condition.
DO NOT operate this water heater until the venting installation is complete and the piping
completed. Failure to complete installation before operation can result in property damage,
personal injury, or death.