Weil-McLain Gold CGa - Manual (Page 10)

GOLD CGa Gas-Fired Water Boiler — Boiler Manual
10
Part Number 550-101-009/0107
Figure 5 Air from outdoors — horizontal ducts
Figure 4 Air from outdoors — vertical ducts
Figure 2 Air openings to interior spaces
Figure 3 Air directly through outside wall
Air opening options
Two openings — Air supply from inside the building
✷
1. If the building is of unusually tight construction (see definition, next
page), the building must also be provided with air openings directly
to the outside , sized and located per Figure 3, Figure 4 or Figure 5.
. Buildings of typical construction should provide adequate combustion
air from natural infiltration, so additional air openings to the building
are not required.
3. See Figure . Provide two openings through the interior wall, within
1 inches of the ceiling and the floor, sized per Figure .
Two openings — Air supply directly from outside ✷
1. Air openings must be directly through an outside wall, or into a space
that connects directly to the outside (such as a ventilated attic or crawl
space, for example).
. See Figure 3 — Openings directly through an outside wall — provide
two openings within 1 inches of the ceiling and the floor, sized per
Figure 3.
3. See Figure 4 — Air supplied through vertical ducts — provide two
openings terminated within 1 inches of the ceiling and the floor, sized
per Figure 4.
4. See Figure 5 — Air supplied through horizontal ducts — provide
two openings within 1 inches of the floor and the ceiling, sized per
Figure 5.
Prepare boiler location — air openings
1e
Air openings must be provided
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