12 • Residen al Gas Tankless Water Heater Use and Care Guide
Read Before
Installa on
1
Review all of the instruc ons
before you begin work.
Improper installa on can
damage the water heater, your home
and other property, and can present
risks of serious injury or death.
2
This water heater is designed
as a Category IV, posi ve
vented sta c pressure water
heater (vent gas temperatures may
cause excessive condensate
produc on in the vent,) which takes
its combus on air either from the
installa on area or from air ducted to
the unit from the outside. This water
heater must be installed:
• Following all local codes, or in the
absence of local codes, follow the
current edi on of ANSI Z223.1/NFPA
54, Na onal Fuel Gas Code in the
USA or B149.1, Natural gas and pro-
pane installa on code in Canada.
• For installa on in manufactured
homes (mobile homes) follow the
current edi on of The Manufactured
Home Construc on and Safety Stan-
dard, Title 24 CFR, Part 3280 and/or
CSA Z240 MH Series, Manufactured
Homes.
• Follow the electrical code require-
ments of the local authority having
jurisdic on. In the absence of such
requirements, follow the current
edi on of the Na onal Electrical
Code ANSI/NFPA 70 in the U.S. or
the current edi on of CSA C22.1
Canadian Electrical Code Part 1 in
Canada.
These are available from the
following:
CSA Group, Inc.
United States:
8501 East Pleasant Valley Road
Cleveland, OH 44131
Canada:
178 Rexdale Blvd.
Toronto, ON
Canada M9W 1R3
Na onal Fire Protec on Associa on
1 Ba erymarch Park
Quincy, MA 02269
Check with local code o
ffi
cials about
codes governing this installa on.
Have your installa on inspected by a
code o
ffi
cial to ensure the installa on
meets all local codes.
NOTICE:
Installa on and service must
be performed by a quali
fi
ed installer
(for example, a licensed plumber or
gas
fi
er). Otherwise, the warranty
will be void. The installer (licensed
professional) is responsible for the
correct installa on of the water
heater and for compliance with all
na onal, state/provincial, and local
codes.
Massachuse s code requires this
water heater to be installed in
accordance with Massachuse s
248-CMR 2.00 and 248-CMR 5.00:
State Plumbing Code. Other local and
state/provincial authori es may have
similar requirements or other codes
applicable to the installa on of this
water heater.
3
Before you start, check the
following:
Warning! Do not store or use
fl
ammable materials, vapors, or
liquids in the same loca on where
this water heater is installed.
• All gas water heaters require correct
installa on to ensure safe and
e
ffi
cient opera on. This manual
must be followed exactly. Read the
“Safety Guidelines” Sec on.
• Carefully plan the installa on loca-
on of the heater and vent termina-
ons.
• The water heater must be installed
where the proper amount of
combus on air will be available to
it at all mes without obstruc ons.
When installed indoors, the water
heater can be direct vented.
• The length of piping between the
water heater and
fi
xture determines
the me it takes for the hot water
to arrive. Consider installing the
water heater closer to the
fi
xtures,
if the plumbing system allows for it.
The water heater should be the
fi
rst
appliance to access the water line
a er u li es water meter.
• Locate your water heater close to a
drain where water leakage will not
do damage to surrounding areas. As
with any water hea ng appliance,
the poten al for leakage at some
me in the life of the product does
exist. A drain pan, or other means
of protec on against water damage,
is recommended to be installed
under the water heater in case of
leaks. In addi on, you may install
an ac ve water leak detector with a
shuto
ff
valve which can turn o
ff
the
water supply in the event of a leak.
The manufacturer is not responsible
for damage due to water leaks. If
you install a drain pan under the
unit, ensure that it will not restrict
the combus on air
fl
ow.
• The water heater shall be securely
wall-mounted or mounted on a
stand.
• Maintain proper space for servicing.
Install the unit so that it can be con-
nected or removed easily. Refer to
the "Unit clearances" sec on page
17 for proper clearances.
• For outdoor installa ons, locate the
water heater in an open , unroofed
area. Maintain 3 in. (76 mm) min-
imum clearance from the le and
right sides of the unit.
• The manufacturer does not recom-
mend installing the water heater
in an a c due to safety issues. See
the installation section for further
information.
GETTING STARTED
