Operating instructions



BBV, SBV Series Natural Vent Gas Fireplaces
COMBUSTION AIR ASSEMBLY
MODEL OAC-4 COMBUSTION AIR ASSEM-
BLY
 emove te cover plate rom te  outlet openin
location on te let outside o te ireplace
 lace startin collar  into ole on let side o ire
place ireplace sortest side o air startin collar
trou ireplace outer rap asten startin collar in
place it our  seet metal scres provided ig
ure 
NOTE: The air starting collar extends through the
fireplace outer wrap. When the air starting collar is
securely attached, it will form a seal against the fire-
place wall.
 ut a  diameter openin or model  in te
outside all coverin ere te outside vent is to be
located igure 
 elect and cut a piece o duct lon enou to attac
to te ireplace and stick out at least  beyond te
ace o te all to ic te  inlet air vent ill
be attaced ut duct it a standard pocket knie
igure 
WARNING
DO NOT remove the cover if the outside
air will not be connected.
Do not use a combustible duct. Always use
UL Listed Class 0 or 1 duct material. If nec-
essary to splice duct, use Model 403 duct
connector to splice duct sections.
&0
ATTACHSTARTCOLLAR

et ide o
ireplace

tartin
ollar
eet etal
cres
orter nd o ir
tartin ollar

Figure 12 -
Attach Outside Air Starting Collar to Left Side of
Fireplace
&0
ATTACHOUTSIDEAIRDUCT

ir tartin ollar
cres
cres
Duct
et ide o
ireplace

Figure 13 -
Attach Outside duct to Starting Collar
&0
COMBAIRASSY

 Diameter
ole
Duct 
tendin 
in
 Inlet ir
ent
ail
ole
cres

Figure 14 -
Combustion Air Assembly for Model No. OAC-4
 I usin insulatin duct pus te insulation back rom
one end o te duct approimately  igure 
 lip te eposed end o te duct over te startin col
lar on te ireplace
 sin te seet metal scres provided secure te
duct end to te collar attaced to te ireplace
 ail or scre te combustion air assembly to te sur
ace o te all
WARNING