Use & Care Manual

Read these instructions thoroughly and make
sure you understand all steps and procedures
before proceeding with the installation.
Determine the locations for the vent and com-
bustion air-inlet terminals then make two (2)
holes through the roof and interior ceiling(s) to
accommodate the vent and combustion air-inlet
pipes.
• Maintain a minimum horizontal distance
of 12 in. (3.5 cm) between the vent and
combustion air-inlet terminals.
Assemble the vent pipe assembly.
Install the vent system and attach it to the vent
connector tting on the water heater’s blower
assembly.
Horizontal lengths of the vent system must
slope towards the water heater a minimum of
1/8 in. per foot (10 mm per m).
Install the combustion air-inlet system and
attach it to the combustion air-inlet connector
tting on the water heater’s combustion air-inlet
tube assembly.
• Support vertical and horizontal lengths of
the vent and combustion air-inlet systems
as previously mentioned.
Determine the vent and combustion air-inlet
terminal heights and cut the pipe accordingly.
• Insert lengths of vent and combustion
air-inlet pipes through the ceiling wall as
shown.
• Install adequate ashing where the vent and
combustion air-inlet pipes pass through the
roof.
• Connect a short piece of pipe approxi-
mately 3 in. (7.6 cm) to the terminals and
elbows.
Place the supplied 1/2 in. (1.3 cm) mesh metal
screens inside each terminal tting then connect
a short piece of pipe approximately 3 in.
(7.6 cm) between the terminals and elbows.
NOTICE: For cold climates the screens may
be removed.
For 75 Gallon Power Direct Vent Models
ONLY:
These water heater models are supplied with
two (2) vent and combustion air-inlet termina-
tion restrictors. These restrictors help the water
heater achieve peak efciency when the water
heater is installed using 3 in. (7.6 cm) diameter
pipe at the minimum equivalent vent and com-
bustion air-inlet lengths specied in Table 2.
IMPORTANT: Do not install the termination
restrictors in equivalent vent and/or combustion
air-inlet lengths longer than 8 ft. (2 m) or on any
other Power Direct Vent model.
NOTICE: Termination Restrictors supplied
for use with 75 Gallon models ONLY.
Installing the Water Heater
24
Vertical Vent and Combustion Air-Inlet Installation
The location of the vent and combustion air-inlet terminals depends on the following minimum clear-
ances and considerations.
Minimum 12 in. (30.5 cm) above roof.
Minimum 12 in. (30.5 cm) above anticipated snow level.
Maximum 24 in. (61cm) above roof level without additional support for vent.
Four (4) ft. (1.22 m) from any gable, dormer or other roof structure with building interior
access (i.e., vent, window, etc.).
Ten (10) ft. (3.05m) from any forced air inlet to the building. Any fresh or make-up air inlet
such as a dryer or furnace area is considered to be a forced air inlet.
Maintain a minimum horizontal distance of 12 in. (30.5 cm) between the vent and combus-
tion air-inlet terminal centerlines.
Maintain a minimum distance from the vent and the combustion air-inlet terminals of not less
than 12 in. (30.5 cm) above grade or average snowfall, whichever is greater.