Use & Care Manual

23
Read these instructions thoroughly and make
sure you understand all steps and procedures
before proceeding with the installation.
Determine the location for the concentric termi-
nal then make a 5 in. (12.7 cm) hole through the
exterior wall.
Disassemble the concentric terminal assembly.
● Note: The concentric terminal assembly
consists of an inner, straight vent pipe, an
outer, straight combustion air-inlet pipe, a
Wye tting and rain cap.
The concentric terminal assembly is designed to
accept 3 in. (7.6 cm) diameter pipe.
If 2 in. (5.1 cm) diameter pipe is used:
● Then either 2 in. x 3 in. (5.1 cm x 7.6 cm)
pipe increasers,
● Or ush bushings must be installed to the
vent and combustion air-inlet connections of
the terminal assembly.
● DO NOT use the concentric terminal assem-
bly with 4 in. (10.2 cm) vent and combustion
air-inlet systems.
From inside the building, insert the outer,
straight combustion air-inlet pipe through the
wall so that the rear of the rain cap when in-
stalled sits ush with the outside wall.
NOTICE: The concentric terminal assembly
may be reduced in length as follows:
● Measure for desired installation length then
cut the outer, straight combustion air-inlet
pipe accordingly but not less than 12 in. (30
cm).
● Measure and cut the straight inner vent pipe
of the concentric terminal assembly so it
is 13 in. (5.1 cm) longer in length than the
outer, straight combustion air-inlet pipe.
● Ensure that there is no insulation or debris in
the pipe.
Assemble the vent pipe assembly.
● Clean and cement the rain cap to the inner,
straight vent pipe.
● From the outside, slide the vent pipe with
rain cap assembly through the combustion
air-inlet pipe until the rear of the rain cap is
ush with the outside wall.
● Clean and cement the rain cap to the combus-
tion air-inlet pipe.
● Clean and cement a 3 in. (7.6 cm) diameter,
ULC-S636 approved, Schedule 40, PVC,
90° street elbow to the rain cap.
From the inside, clean and cement the wye t-
ting to the vent and combustion air-inlet pipes of
the termination assembly.
Complete the installation of the remainder of the
vent system and attach it to the vent connector
tting on the water heater’s blower assembly.
IMPORTANT: Raise all horizontal sections
upwards a minimum of 1/8 in. per foot
(10 mm per m).
DO NOT use unequal diameters of pipe and
ttings for the vent and combustion air-inlet
systems except as dened 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 tting on the wa-
ter heater’s combustion air-inlet tube assembly.
Support vertical and horizontal lengths of the
vent and combustion air-inlet systems as previ-
ously mentioned.
IMPORTANT: Ensure that all the coupling
clamps are tight before allowing the water heater
to operate.
Horizontal Vent- Alternate Concentric Terminal Installation:
Contact Manufacturer's National Service Department for Kit information, see "If You Need Service"
section.