American Standard Standard Residential, Руководство по эксплуатации, установке и обслуживанию

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5
NOTE:
If the equipment room is located
against an outside wall and the air openings
communicate directly with the outdoors,
each opening shall have a free area of not
less than one square inch per 4,000 BTU
per hour of the total input rating of all
equipment in the enclosure.
Illustrations for Figures 5-8 copyright by
the American Gas Association. Used by
permission of the copyright holder.
MECHANICAL EXHAUSTING AND
FIREPLACES
The operation of air-moving devices such
as exhaust fans, ventilation system, clothes
dryers, fireplaces, etc., can affect the proper
operation of gas utilization equipment.
Consequently, special attention must be
given to conditions these devices may
create to avoid unsatisfactory operation of
the equipment.
POTENTIAL HAZARDOUS
DOWNDRAFT OPERATION
• EXHAUST FANS
• VENTILATION SYSTEM
• CLOTHES DRYERS
• FIREPLACES
• OTHERS
VENTING
This water heater uses a non-direct, single-pipe vent system to remove exhauts gases created by the burning of fossil fuels.
Air for combustion is taken from the immediate water heater location or is ducted in from the outside
(see “Combustion Air
Sypply And Ventilation”).
This water heater must be properly vented for the removal of exhaust gases to the outside atmosphere. Correct installation
of the vent pipes system is mandatory for the proper and efficient operation of this water heater and is an important factor
in the life of the unit.
The vent pipe must be installed according to all local and state codes or, in the absence of local and state codes, the
“National Fuel Gas Code”, ANZI Z223.1 (NFPA 54)-latest edition. The vent pipe installation must not be obstructed so as to
prevent the removal of exhaust gases to the outside atmosphere.
U.L. approved fuel gas and carbon monoxide (CO) detectors are recommended in all applications and should be installed
using the manufacturer’s intructions and local codes, rules, or regulations.
Important: If you lack the necessary skills required to properly install this venting system, you should not proceed, but get
help from a qualified service technician.
When removing purged gases from a piping system, care should be taken to not create
hazardous condition, such as discharging the gases into a confined area or in an area which
contains an ignition source.
WARNING
DISCHARGE
OF
PURGED
GASES
FIGURE 8
Equipment Located in Confined Spaces;
All Air From Outdoors.
WATER HEATER
UPPER
AIR DUCT
LOWER
AIR DUCT
REVERSE
FLOW
EXHAUST
HOOD
NATURAL DRAFT
EQUIPMENT
FURNANCE