ECR CCB-150 Manuel D'installation, D'utilisation Et D'entretien page 21

Figure 13 - Chimney Venting with Room Air
Single Wall
( = Combustion Air /
Figure 14 - Chimney Venting with Outside Air
Single Wall
( = Combustion Air /
DIRECT VENT BOILER - Boiler constructed and installed
so all combustion air is derived directly from outdoors and
all vent gases are discharged to outdoors. See Figure 14.
6 - COMBUSTION AIR AND VENT PIPING
= Venting)
= Venting)
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NOTICE
Refer to section 6.1, numbers 3 through 12,
page 15 of this manual for proper installation.
EN