feet from the burner to avoid condensation on the
outside of the intake pipe.
CAD-1
Air duct kit consists of 25 feet of
insulated UL/ULC Listed Class 1 air duct, and two 4"
steel band clamps.
corrugated flexible aluminum core, surrounded by
fibreglass insulation covered with a vinyl vapour
barrier.
CAUTION
The CAS-2B does not turn the furnace
installation
into
a
Therefore the building structure must provide
for adequate combustion air to be delivered
at the vacuum relief valve. The burner will
need to draw combustion air from the VRV's
surroundings if the intake ever becomes
blocked.
Therefore
installation codes must be followed.
Comprehensive installation instructions are provided
with the kit.
OUTDOOR
COMBUSTION
VENTING, DV-2000™
The new DV-2000™ venting system is a sealed
system and completely isolates the furnace from the
interior of the building. The burner is totally unaffected
by any pressure fluctuations within the building which
makes it ideal for tight home constructions such as
R2000 approved dwellings.
The DV-2000 ™ venting system requires additional
parts, which are not included with the kit. These
additional parts must be constructed of 3" Schedule 40
PVC, PVC-SWV, SDR-26, SDR-21, Septic Sewer
Pipe, or ABS plastic pipe, fittings and sealant. Also,
installation procedures, piping and fittings must
conform to the following ANSI /ASTM standards:
PVC
SDR26,SDR21
Septic Sewer Pipe
PVC-DWV
PVC Primer and
Solvent Cemen
ABS Pipe and Fittings
Procedure for
Cementing Joints
14
The duct incorporates a
direct
vent
system.
non-direct
vent
AIR
-
SIDEWALL
ASTM D-1785
ASTM D-2241
ASTM D-2729
ASTM D-2665
ASTM D-2564
ASTM D-2235
ASTM D-2855
ADDITIONAL PARTS REQUIRED (NOT INCLUDED
IN VTK KIT)
a. 3" elbow fitting as required
b. 3" plastic pipe
c. 3" 90°elbow, female-female(for terminal)
d. 3" female to 2" female reducer (Riello BF-5 burner
only)
e. 2" 90°elbow, street type, female-male (Riello BF-5
burner only)
f.
3" female-female PVC or ABS coupling (not sewer
pipe) (Beckett AFII-150 burner only)
g. 2" transition bushings to go from PVC or ABS to
ASTM D2729 Septic Sewer Pipe (if applicable).
If PVC fittings are mixed with ABS fittings, use a
solvent cement that is approved for bonding the two
plastics.
INTAKE PIPE LENGTH - DV-2000™
The DV-2000 ™ venting system has been certified for
120 equivalent feet of 3" intake pipe. Count a
90°elbow as 10 equivalent feet and a 45°elbow as 5
equivalent feet in the calculation.
For Example:
1
5' Length
2
10' Lengths
3
90°elbows
2
45°elbows
1
90°elbow
1
90°elbow
INTAKE PIPE INSTALLATION - DV-2000™
Obtain the necessary additional parts, to complete the
installation, and start by piping at the burner. If the
optional vestibule has been installed, remove the
appropriate knock-outs in the side panels of the
vestibule. The lower 5" knock-out in the right hand
panel is used for the Beckett AFII burner. The higher
5" knock-outs on the right and left hand panels are for
right or left connection to the Riello 40-BF burner.
BECKETT AF-II BURNER
Remove the burner intake cover by removing the 3
screws securing it in place. Discard the cover and
screws. Apply silicone liberally around the end of a 3"
coupling and fully insert the siliconed end onto the
burner opening. Fasten securely with 3 self tapping
sheet metal screws.
= 5
equivalent feet
= 20
equivalent feet
= 30
equivalent feet
= 10
equivalent feet
= 10
equivalent feet
= 10
equivalent feet
------------------------------
Total
= 85
equivalent
feet, which is less than 120
feet, which is acceptable.