Installation Instructions; Tools Needed; Plan The Ductwork; Calculate The Duct Run Length - Dcs Dd-30Ss Installation Guide

TOOLS NEEDED FOR INSTALLATION
Saber Saw or Jig Saw
Drill
1-1/4 Wood Drill Bit
Pliers
Phillips Screwdriver
Flat Blade Screwdriver
Wire Stripper or Utility Knife
Metal Snips
Measuring Tape or Ruler
Level
Pencil
Caulking Gun
Duct Tape
PARTS NEEDED FOR INSTALLATION
2 Conduit Connectors
Power Supply Cable
1 Wall or Roof Cap
All Metal Ductwork

PLAN THE DUCTWORK

The DCS 36" and 30" downdraft vent system can be
ducted in four different directions; down, left, right or
back using a 3-1/4" X 10" rectangular vent. Fig. 03
illustrates venting options. Fig. 02 shows the ductwork
cutout dimensions.

CALCULATE THE DUCT RUN LENGTH

The ductwork length should not exceed 35 equivalent
feet for 3-1/4" X 10" duct, or 60 equivalent feet for 9"
round duct. Calculate the length of the ductwork by
adding the equivalent feet listed in Fig. 04 for each piece
of duct in the complete system. An example is given in Fig. 05. For best results, use no more than
three 90° elbows. Make sure that there is a minimum of 24" of straight duct between elbows if more
than one is used. Do not install two elbows together. Round duct is recommended instead of
rectangular duct especially if elbows are needed. Rectangular duct should transition to round as soon
as possible (6" round minimum).
45° Elbow
90° Elbow
90° Flat Elbow
Wall Cap

INSTALLATION INSTRUCTIONS

PARTS SUPPLIED FOR INSTALLATION
6 Mounting Brackets
2 End Caps
16 Screws
1 Backdraft Damper
5.0 feet
7.0 feet
12.0 feet
0.0 feet
FIG.04
V E N T I N G D O W N
R H
V E N T I N G I G T
FIG.03 Ducting
9 Feet Straight Duct
2 - 90° Elbows
Wall Cap
Total System
FIG.05
6
L F
V E N T I N G E T
B A C K
V E N T I N G
9.0 feet
14.0 feet
0.0 feet
23.0 feet