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112127-01B
For more information, visit www.desatech.com
For more information, visit www.desatech.com
10
WARNING: Installation should only be made by
qualified persons who are familiar with the safety
procedures required for the installation of the prod-
uct, who are equipped with the proper tools and
testing instruments, and who have achieved proper
certification of licensing. Installations made by un-
qualified persons can result in the risk of injury or
electrical shock which can be serious or even fatal.
INSTALLATION OF LISTED B-1 VENT
VENTING INSTALLATION
Continued
Figures 21 through 23 show other options for the gas vent. When
venting through a side wall your vent pipe must have the proper
temperature rating (see Figure 23). Manufacturer's clearances must
also be maintained. Consult the authority having jurisdiction in your
area regarding venting through side wall.
Figure 21 - Vertical
Venting Through Ceiling
Using Two 90º Elbows
(Oxford™ Model Shown)
Figure 22 - Vertical Venting
Configuration Through Chimney
(Oxford™ Model Shown)
Figure 23 - Venting Through a Side Wall (Oxford™ Model Shown)
INSTALLING VENT SYSTEM IN A CHASE
A chase is a vertical box-like structure built to enclose venting that runs
along the outside of a building. A chase is not required for such venting.
NOTICE: Treatment of firestops and construction of
the chase may vary from building type to building
type. These instructions are not substitutes for the
requirements of local building codes. You must fol-
low all local building codes.
Note:
When installing in a chase, you should insulate the chase as
you would the outside walls of your home. This is especially
important in cold climates. Minimum clearance between vent pipes
and combustible materials such as insulation is 1".
CHECKING VENT CAPACITY
Complete all gas piping, electrical, and vent connections. After adjust-
ing the burner system and lighting the main burners, allow a couple of
minutes for warm-up. Hold a lighted match just under the rim of the
draft hood relief opening. Proper venting will draw the flame toward or
into the draft hood. Improper venting, indicated by escape or spillage of
burned gas, will cause match to flicker or go out. Smoke from a cigarette
will also be pulled into the draft hood if the vent is drawing properly.
Figure 24 - Test for Proper Venting
VENTING INSTALLATION
Installation of Listed B-1 Vent
Installing Vent System In A Chase
Checking Vent Capacity