Rinnai 4500 User Manual

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12 
            Rinnai Corporation ROF4500 
 
  Definition of an Outdoor Area 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
This appliance shall only be used in an above ground open air situation with natural ventilation, without stagnant 
areas, where gas leakage and products of combustion are rapidly dispersed by wind and natural convection. 
Any enclosure in which the appliance is used shall comply with one of the following: 
⇒  at least 25% of the total area of the sides must be 
completely open on 1 side 
 
Example: A covered enclosure with 3 walls, 8 feet 
high, has the dimensions shown.   
 
The open side area is 8 x 15 = 120 square feet. 
 
The total area of the sides is 
(2 x 8 x 15) + (2 x 8 x 10) = 400 square feet 
 
Therefore this rule is met because 120/400 = 0.3 
(The open side equals 30% of the total area of the 
sides.) 
•  With walls on all sides, but at least one permanent 
opening at ground level and no overhead cover. 
•  Within a partial enclosure that 
includes an overhead cover and 
no more than two walls (at least 2 
sides of the enclosure are open). 
•  Within a partial enclosure that includes an overhead 
cover and more than two walls, the following shall apply: 
15
10
⇒  at least 30% of the walled area is open and 
unrestricted. 
 
Example: The walled area above is 280 square feet.  
Therefore, the area of all the openings in these walls 
must total to at least 84 square feet.  (0.3 x 280 = 
84) 
open both
ends
The clearances on the next page 
must be followed. 
NOTICE