Installation / Operation Instruction Manual

9
1
In accordance with the current CAN/CGA-B149 Installation Codes.
2
In accordance with the current ANSI Z223.1-(Latest edition)/NFPA 54 National Fuel Gas Code.
† A vent shall not terminate directly above a sidewalk or paved driveway that is located between
two single-family dwellings and serves both dwellings.
‡ Permitted only if a veranda, porch, deck or balcony is fully open on a minimum of two sides
beneath the floor.
*a) A minimum clearance value determined by testing in accordance with section 5.21.1 of ANSI
Z21.10.1, latest edition.
*b) “Clearance in accordance with local installation codes and the requirements of the gas supplier”.
The vent system must terminate so that proper clearances are maintained as cited
in local codes or the latest edition of the National Fuel Gas Code, ANSI
Z223.1.73.4e and 7.8a, b as follows:
1. Do not terminate near soffit vents or crawl space or other area where
condensate or vapor could create a nuisance or hazard or cause property
damage.
2. Do not terminate the exhaust vent terminal where condensate or vapor could
cause damage or could be detrimental to the operation of regulators, relief
valves, or other equipment.
3. Do not terminate the exhaust vent terminal over public area or walkways where
condensate or vapor can cause nuisance or hazard.
4. The vent shall terminate a minimum of 12” (25.4 cm) above expected snowfall
level to prevent blockage of vent termination.
Vent pipes serving power vented appliances are classified by building codes as
“vent connectors”. Required clearances from combustible materials must be
provided in accordance with information in this manual under Location Of Water
Heater and Minimum Clearances, and with National Fuel Gas Code and local
codes.
Clearance to combustibles for all venting pipes and terminals
For installations in the US
0” minimum
For installations in Canada
Refer to vent pipe and terminal
manufacturer’s installation instructions
for clearances to combustibles
DO NOT place insulation or other materials in the required clearance spaces
between the venting to combustible material unless otherwise specified.
WARNING
Risk of carbon monoxide poisoning or fire due to joint separation or
pipe breakage.
This water heater must be properly vented and connected to an approved
vent system in good condition. DO NOT operate water heater with the
absence of an approved vent system. A clean and unobstructed vent
system is necessary to allow noxious fumes that could cause injury or
loss of life to vent safely and will contribute toward maintaining the water
heater’s efficiency. The acceptance of the venting system is dependent
upon full compliance with these installation instructions. When an existing
Category I appliance is removed or replaced, the original venting system
may no longer be sized to properly vent the attached appliances.