Rheem 801C Series, Руководство по установке

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14
Combustion Air
COMBUSTION AND VENTILATION AIR
1 . IMPORTANT: Air for combustion and ventilation must not
come from a corrosive atmosphere. Any failure due to corro-
sive elements in the atmosphere is excluded from warranty
coverage.
2 . Combustion air must be free of acid forming chemicals; such
as sulphur, fluorine and chlorine . These elements are found
in aerosol sprays, detergents, bleaches, cleaning solvents,
air fresheners, paint and varnish removers, refrigerants and
many other commercial and household products . Vapors
from these products when burned in a gas flame form acid
compounds . The acid compounds increase the dew point
temperature of the flue products and are highly corrosive
after they condense .
3 . The following types of installation may require OUTDOOR
AIR for combustion, due to chemical exposures:
• Commercial buildings
• Buildings with indoor pools
• Furnaces installed in laundry rooms
• Furnaces in hobby or craft rooms
• Furnaces installed near chemical storage areas .
4 . If combustion air is exposed to the following substances (but
not limited to the following), it should not be used and the fur-
nace may require outdoor air for combustion .
• Permanent wave solutions
• Chlorinated waxes and cleaners
• Chlorine-based swimming pool chemicals
• Water softening chemicals
• De-icing salts or chemicals
• Carbon tetrachloride
• Halogen type refrigerants
• Cleaning solvents (such as perchloroethylene)
• Printing inks, paint removers, varnishes, etc .
• Hydrochloric acid
• Cements and glues
• Antistatic fabric softeners for clothes dryers
• Masonry curing and acid washing materials
Combustion air requirements are determined by whether the
furnace is in an open (unconfined) area or in a confined space
such as a closet or small room .
When the furnace is installed in the same space with other gas
appliances, such as a water heater, be sure there is an adequate
supply of combustion and ventilation air for the furnace and the
other appliances . Do not delete or reduce the combustion air
supply required by the other gas appliances in this space . See
Z223.1, National Fuel Gas Code (NFPA 54). An unconfined
space must have at least 50 cubic feet (volume) for each 1,000
BTUH of the total input of all appliances in the space . If the open
space containing the appliances is in a building with tight con-
struction (contemporary construction), outside air may still be
required for the appliances to burn and vent properly . Outside air
openings should be sized the same as for a confined space.
IMPORTANT: ONLY THE CURRENT VENT INSTRUCTIONS
APPLY . All gas furnaces cannot be common-vented .
OVERTEMPERATURE SAFETY
SWITCHES
Furnaces are equipped with safety switches in the burner com-
partment to protect against over-temperature conditions caused
by inadequate combustion air supply . The switches are located
in the burner compartment . If a switch is tripped it must be man-
ually reset after clearing the fault condition which caused it to
open .
IMPORTANT: This is not a direct vent furnace. Review venting
instructions before installing.
!
WARNING
THIS FURNACE AND ANY OTHER FUEL-BURNING AP-
PLIANCE MUST BE PROVIDED WITH ENOUGH FRESH
AIR FOR PROPER COMBUSTION AND VENTILATION OF
THE FLUE GASES . MOST HOMES WILL REQUIRE THAT
OUTSIDE AIR BE SUPPLIED INTO THE FURNACE AREA .
FAILURE TO DO SO CAN CAUSE DEATH FROM CARBON
MONOXIDE POISONING .
!
WARNING
ADEQUATE FACILITIES FOR PROVIDING AIR FOR COM-
BUSTION AND VENTILATION MUST BE PROVIDED IN
ACCORDANCE WITH SECTION 5 .3, AIR FOR COMBUS-
TION AND VENTILATION, OF THE NATIONAL FUEL GAS
CODE, ANSI, Z223 .1 LATEST EDITION OR APPLICABLE
PROVISIONS FOR THE LOCAL BUILDING CODES, AND
NOT OBSTRUCTED SO AS TO PREVENT THE FLOW OF
AIR TO THE FURNACE .
COMBUSTION AIR REQUIREMENTS
!
WARNING
ALL FURNACE INSTALLATIONS MUST COMPLY WITH
THE NATIONAL FUEL GAS CODE AND LOCAL CODES
TO PROVIDE ADEQUATE COMBUSTION AND VENTI-
LATION AIR FOR THE FURNACE . FAILURE TO DO SO
CAN CREATE HAZARDOUS CONDITIONS RESULTING IN
PROPERTY DAMAGE, BODILY INJURY OR DEATH FROM
SMOKE, FIRE OR CARBON MONOXIDE .
!
WARNING
DO NOT BYPASS, JUMPER, OR REMOVE ANY SAFETY
SWITCH FROM THE FURNACE CONTROL CIRCUIT . IF
A SAFETY SWITCH CAUSES THE FURNACE TO SHUT
DOWN OR OPERATE INTERMITTENTLY, IT IS AN INDI-
CATION OF A POTENTIAL SAFETY HAZARD THAT MUST
BE ADDRESSED BY A QUALIFIED TECHNICIAN, SER-
VICE AGENCY OR THE GAS SUPPLIER . DO NOT RESET
SAFETY CONTROLS WITHOUT CORRECTIVE ACTION
AND/OR VERIFICATION OF PROPER SAFE OPERATION
BY A QUALIFIED INSTALLER, SERVICE AGENCY OR
THE GAS SUPPLIER .
REPLACE ANY SAFETY CONTROL COMPONENT WITH
IDENTICAL OEM REPLACEMENT PARTS ONLY .