A.O. Smith FMD 40 Manuale Utente

Pagina di 56
9
Insulation blankets are available to the general public for external 
use on gas water heaters but are not necessary with these products.  
The purpose of an insulation blanket is to reduce the standby heat 
loss encountered with storage tank heaters.  Your water heater 
meets or exceeds the minimum effi ciency requirements with respect 
to insulation and standby loss requirements, making an insulation 
blanket unnecessary.
Should you choose to apply an insulation blanket to this heater, you 
should follow these instructions (For identifi cation of components 
mentioned below, see Figure 1).  Failure to follow these instructions 
can restrict the air fl ow required for proper combustion, potentially 
resulting in fi re, asphyxiation, serious personal injury or death.
•  Do not apply insulation to the top of the water heater, as this will 
  interfere with safe operation of the draft hood.
•  Do not cover the outer door, thermostat or temperature & pressure 
 relief 
valve.
•  Do not allow insulation to come within 2” (50.8 mm) of the fl oor to 
  prevent blockage of combustion air fl ow to the burner.
•  Do not cover the instruction manual.  Keep it on the side of the 
  water heater or nearby for future reference.
•  Do obtain new warning and instruction labels from the manufacturer 
  for placement on the blanket directly over the existing labels.
•  Do inspect the insulation blanket frequently to make certain it 
  does not sag, thereby obstructing combustion air fl ow.
INSTALLING THE NEW WATER HEATER
WATER HEATER INSTALLATION
1.  To locate the position of the 3 1/2” (8.89 cm) or 4 1/2” (11.43 cm) 
hole to be cut in the fl oor, see Figures 5 and 6.
FIGURE 5.
FIGURE 6.
2.  If you have found that the water heater is being installed in an 
area which, if the water heater was to leak, would cause damage 
and have elected to install a metal drain pan refer to Figures 7, 8 
and 9 on page 10. If you are not installing a drain pan go directly 
to the next step.
NOTE: Clearances from combustible or non combustible surface to 
jacket will change template dimensions.