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*When used indirect vented, clearances to ceiling from top of exhaust hood must be 12" on PTS/U (50-75), and 18" on PTS/U (100-200). If optional corner or U-bend reflec-
tors are not used, clearance must be 18". ** learance below the tube reduces to 72" 20 ft. downstream from the control box. Note: onsult factory if reduced clearances
are required.
COMBUSTION IR ND VENTIL TION
vented installation
Indirect vented
FOR YOUR S FETY
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