Air Shutter Setting - Heat & Glo MEZZO-1000-AU Installation Manual

F . A i r S h u t t e r S e t t i n g
Air shutter settings may be adjusted by a qualified
installer at the time of installation. The air shutter is set at
the factory for minimum vertical vent run. Adjust air
shutter for longer vertical runs. See Figure 9.6.
 Refer to Gas Service Access instructions in Section
9.C to access the air shutter.
 Loosen the 1/4 in. (6 mm) screw.
DETAIL
Figure 9.6 Air Shutter Location
Heat & Glo • MEZZO-1000-AU, MEZZO-1300-AU, MEZZO-1300ST-AU, MEZZO-1600-AU Installation Manual • 2304-970 Rev. D • 3/15
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 Twist shutter to adjust.
 Shutter may be open for longer horizontal vent runs.
 Do not close the air shutter more than 1/16 in. (2
mm) for NG or 1/4 in. (6 mm) for ULPG
 Tighten the screw.
NOTICE: If sooting occurs, provide more air by opening
the air shutter.
Air Shutter Settings
MEZZO-1000-AU
MEZZO-1300-AU
MEZZO-1300ST-AU
GLASS REFRACTORY
KIT
LOG KIT
MEZZO-1600-AU
GLASS REFRACTORY
KIT
LOG KIT
NG ULPG
Standard Standard
Opening= Opening=
3/16 in. (5 mm) Full Open
1/4 in. (6 mm) Full Open
NG ULPG
Standard Standard
Opening= Opening=
3/8 in. (10 mm) Full Open
3/8 in. (10 mm) Full Open