DCS DD-30SS - Manuel (Page 7)

45° Elbow 5.0 feet
90° Elbow 7.0 feet
90° Flat Elbow 12.0 feet
Wall Cap 0.0 feet
6
INSTALLATION INSTRUCTIONS
TOOLS NEEDED FOR INSTALLATION PARTS SUPPLIED FOR INSTALLATION
Saber Saw or Jig Saw 6 Mounting Brackets
Drill 2 End Caps
1-1/4 Wood Drill Bit 16 Screws
Pliers 1 Backdraft Damper
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).
VENTING DOWN VENTING LEFT
VENTING RIGHT VENTING BACK
9 Feet Straight Duct 9.0 feet
2 - 90° Elbows 14.0 feet
Wall Cap 0.0 feet
Total System 23.0 feet
FIG.03 Ducting
FIG.04 FIG.05