Riello Array AR 3000 Installation And Operation Manual page 55

X
Y
Horizontal venting system (sealed combustion):
X ≥ 4" (102 mm);
Y ≥ 12" (305 mm)
Vent
Air intake
Multiple air and vent vertical termination:
X ≥ 12" (305 mm);
Y ≥ 12" (305 mm)
Air intake Y
Vent
X
X
X
Y
Vertical venting system (sealed combustion):
X > 12" (305 mm)
Y = 12" (305 mm) above maximum snow level or at least 24"
whichever is greater
Air intake
Vent
X
Multiple air and vent vertical termination:
X ≥ 12" (305 mm);
Y ≥ 12" (305 mm)
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SHUTDOWN APPENDIX
X
Y
Air intake
Vent
Y