Bradford-White Corp ULTRA HIGH EFFICIENCY COMMERCIAL GAS WATER HEATER Manual De Usuario

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13 
 
CHEMICAL VAPOR CORROSION 
 
Corrosion of the flue ways and vent system will occur if air for combustion contains certain chemical vapors.  Such 
corrosion may result in poor combustion and create a risk of asphyxiation, as well as reducing the life of the water heater.  
Spray can propellants, cleaning solvents, refrigerator and air conditioning refrigerants, swimming pool chemicals, calcium 
and sodium chloride, waxes and process chemicals are corrosive. Products of this sort should not be stored near the 
water heater or outside by the air intake (if applicable). 
 
TYPICAL INSTALLATION ILLUSTRATION 
 
 
 
 
 
 
 
Figure 4.  Typical Front Inlet Connection 
 
Figure 5.  Typical Front Inlet Connect with Storage Heater 
 
 
Figure 6.  Typical Two Water Heater Connection 
    
CAUTION
 
If the building cold water supply has a back-flow preventer, check valve or water meter with check valve 
provisions for thermal expansion of water in the hot water system must be provided.