Marquis DVR-38 - Manual (Page 12)

Marquis 38
12
VENTING INSTRUCTIONS Cont...
RESTRICTOR PLACEMENT “FOR ABOVE 7 FOOT VERTICAL RISE
VENTED APPLICATIONS ONLY”
Vertical Venting Between
Seven Feet (7’) and Ten Feet (10’)
must use Restrictor # 1. Vertical
Venting Between Ten Feet (10’)
and Twenty-four Feet (24’) for
Rooftop Terminations must use
Restrictor #2 . See Venting Chart
on page 10.
Simpson Duravent Archgard System
Archgard System
In the Archgard system the restrictors are placed on the exhaust outlet on the appliance.
Simpson Duravent
With Simpson Duravent locate the restrictor in the exhaust section fitting into the formed lip.
Restrictor Placement
WARNING: These restrictors are only to be installed in the vent system if the vent exceeds 7’
in vertical height, *Restrictor Number 1 below is required. Installing them
under any other circumstances may cause hazardous venting conditions
and may result in personal injury, property damage or death.
“NOT FOR USE IN SIDEWALL VENTED APPLICATIONS”
NOTE: Vent restrictors are designed to reduce vertical stack action for above 7 feet, which will reduce the
velocity of incoming combustion air and not adversely affect the standing pilot or the flame of the
appliance.
Restrictor #1
Restrictor #2