Part number 550-142-330/0421
19
SGO
OIL-FIRED NATURAL DRAFT STEAM BOILER — SERIES 4 —
Boiler Manual
SERVICE TECHNICIAN ONLY — read and follow completely.
Figure 10
Back outlet breeching connection for
SGO-3 through 7 with OVD damper
Connect breeching
(continued)
Figure 11
Back outlet breeching connection for SGO-8 and
SGO-9
Figure 12
Top outlet breeching connection for
SGO-8 and SGO-9
Figure 13
Top outlet breeching connection for
SGO-3 through 7 with OVD damper
Typical location for
barometric control
(Also see control
manufacturer’s
instructions)
Flue pipe
bracket
(One on each
side of pipe)
Typical location for
barometric control
(Also see control
manufacturer’s
instructions)
Flue pipe bracket
(One on each
side of pipe)
0251-056_OVD
OVD Damper
(Required)
BVSS
(WMO-1)
(Integrated with damper)
BVSS must be installed
upstream of the barometric
damper
Typical location for
barometric control
(Also see control
manufacturer’s
instructions)
Flue pipe
bracket
(One on each
side of pipe)
0250-056_OVD
OVD
Damper
(Required)
Flue pipe
bracket
(One on each
side of pipe)
Typical location for
barometric control
(Also see control
manufacturer’s
instructions)
BVSS
(WMO-1)
(Integrated with damper)
BVSS must be installed
upstream of the
barometric damper