Use and Care Guide

8
Combustion Air Supply and
Ventilation
IMPORTANT: Air for combustion and ventilation must
not come from a corrosive atmosphere. Any failure due
to corrosive elements in the atmosphere is excluded from
warranty coverage.
IMPORTANT: Do not common vent this water heater with
any power vented appliance.
Vent Pipe System
This is a direct vent water heater which draws its
combustion air from outside of the structure and exhausts
all products of combustion to the outside of the structure.
Carbon Monoxide Hazard
Water heater must be vented to outdoors.
Vent must be installed by a qualified person
using the installation instructions.
Examples of a qualified person include:
gas technicians,
authorized gas company personnel,
and authorized service persons.
Failure to follow these instructions can result
in death or carbon monoxide poisoning.
WARNING
Through-the-wall installations require locating the water
heater next to an outside wall. All necessary components
are supplied for the standard through-the-wall installation.
Optional vertical and horizontal extension kits are available
for installations that exceed the standard horizontal and
vertical distances (see table at right). Only one vertical and
one horizontal kit can be used on the same installation.
Through the Wall Flex Pipe Venting
1. Make sure a proper location has been selected for the
water heater installation. Consider the following:
• Water piping
• Gas Piping
• Access for service
• Proper clearance for combustibles
• Drainage for the temperature and pressure
relief valve and drain pan.
• Vent cap termination
2. Determine the “A” dimension for your specific water
heater by referencing figure 4A. Cut a 6 inch opening
through the wall in the location as shown. Determine
the location of electrical wiring, pipes, or wall studs
before cutting.
NOTE: Installations requiring an “A” dimension (vertical
height) greater than what is shown will require the use of a
Optional vertical extension kit (See “Vertical Install Kit” on
Page 11).