Use & Care Manual

20
Installing the Water Heater
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 exterior wall to accommo-
date the vent and combustion air-inlet pipes.
● Maintain a minimum distance of 12 in.
(30.5 cm) between the vent and combustion
air-inlet terminal centerlines.
Insert lengths of vent and combustion air-inlet
pipes through the wall as shown.
● Allow sufficient length of pipe to extend
beyond the exterior wall of the building for
attachment of the vent and combustion air-
inlet terminals.
Place the supplied 1/2 in. (1.3 cm) mesh metal
screens inside each terminal fitting.
Note: For cold climates the screens may be
removed.
Connect the terminals to the vent and combus-
tion air-inlet pipes which are extending out of
the building.
● Ensure that the back of the supplied termi-
nals are flush with the outside wall surface.
Complete the installation of the remainder of
the vent system and attach it to the vent con-
nector fitting on the water heater’s blower
assembly.
● Horizontal lengths of the vent system
must slope downward a minimum of
1/8 in. per foot (10 mm per m).
IMPORTANT: When the vent system cannot
be sloped away from the water heater or, if
the vent system has vertical section(s), then all
horizontal sections must slope upwards a mini-
mum of 1/8 in. per foot (10 mm per m).
DO NOT use unequal diameters of pipe and
fittings for the vent and combustion air-inlet
systems except as defined previously
NOTICE: The difference between the vent
and combustion air-inlet system equivalent
lengths must be no greater than 5 ft. (1.5 m).
Complete the installation of the remainder of
the combustion air-inlet system and attach it
to the combustion air-inlet connector fitting
on the water heater’s combustion air-inlet tube
assembly.
Support vertical and horizontal lengths of the
vent and combustion air-inlet systems as previ-
ously mentioned.
For 75 Gallon Power Direct Vent Models
ONLY:
These water heater models are supplied with
two (2) vent and combustion air-inlet termi-
nation restrictors. These restrictors help the
water heater achieve peak efficiency when the
water heater is installed using 3 in. (7.6 cm)
diameter pipe at the minimum equivalent vent
and combustion air-inlet lengths of 8 ft. (2m).
IMPORTANT: Do not install the termination
restrictors in equivalent vent and/or combus-
tion 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.
Horizontal Vent and Combustion Air-Inlet Terminal Installation
12 in. (30.5 cm) Min.
Wind Vane
Exhaust Vent
Terminal
Combustion Air-Inlet
Terminal