Archgard 72-DVT30N - Manual (Page 14)

72-DVT30N
14
VENTING - RESTRICTOR PLACEMENT
NOTE: Vent restrictors are designed to reduce vertical stack action
for vent terminations which will reduce the velocity of incoming com-
bustion air and not adversely affect the standing pilot or the efficiency
of the appliance.
RESTRICTOR PLACEMENT FOR ROOFTOP VENTED APPLICATIONS ONLY
WARNING: These restrictors are only to be installed in the vent system if the vent exceeds 10’ in
vertical height. Restrictor Number 1 below is required if the vent system is between 10’-18’ and Re-
strictor Number 2 below is required if the vent system exceeds 18’. 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
Restrictor Number #1
Rooftop Venting Above
Ten Feet (10’)
Restrictor Number #2
Rooftop Venting Above
Eighteen Feet (18’)
Simpson Dura-Vent
Simpson Dura-Vent
With Simpson Dura-Vent, locate
the restrictor in the exhaust
section fitting into the formed lip.
Archgard System
Archgard System
In the Archgard system, the restrictors
are placed on the exhaust outlet on
the appliance.