ICP NOLF105A12D, Installation Instructions Manual

Page: 12 / 44

Outdoor combustion air kit – chimney venting
The following kit has been certified for use on this
appliance. The kit contains an important safety feature,
namely a vacuum relief valve, or VRV. During normal
operation the burner aspirates outdoor air. If the intake
terminal ever becomes partially blocked or fully blocked
from ice or snow etc., the VRV will open to allow a
proportion of air from the dwelling to enter the burner thus
maintaining proper combustion. Once the blockage is
removed, the VRV will close and the burner will draw all
air from the outdoors again.
CAS-2B Components (except air duct) for the Beckett
AFG burner: The kit includes the intake terminal, vacuum
relief valve (VRV) and special air boot connection with
integral air adjustment means for the AFG burner. The
CAS-2B can be used with a 0.10 m (4") galvanized steel
air duct or with a 0.10 m (4") flexible aluminium air duct. It
is recommended that the metallic air ducting material be
insulated from the air intake up to 1.5 m (5') from the
burner, to avoid condensation on the outside of the intake
pipe.
CAD-1 This air duct kit consists of 7.6 m (25') of
insulated UL/ULC Listed Class 1 air duct and two 0.10 m
(4") steel band clamps. The duct incorporates a
corrugated flexible aluminium core, surrounded by
fibreglass insulation and a vinyl vapour barrier.
CAUTION
The CAS-2B does not turn the furnace installation
into a direct vent system. Therefore, the building
structure must provide for adequate combustion air
to be delivered
to the Vacuum Relief Valve. The
burner will need to draw combustion air from the
VRV’s surroundings if the intake ever becomes
blocked. Therefore, non-direct vent installation
codes must be followed.
Comprehensive installation instructions are provided with
the kit.
Outdoor combustion air – side-wall venting, DV-
2000™
The 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 construction.
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 ASTM D-1785
SDR26, SDR21 ASTM D-2241
Septic Sewer Pipe ASTM D-2729
PVC-DWV ASTM D-2665
PVC Primer and Solvent Cement ASTM D-2564
ABS Pipe and Fittings ASTM D-2235
Procedure for Cementing Joints 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” reducer (Riello 40-BF burner only);
e. 2".-.90° elbow, street type, female-male (Riello 40-BF burner
only);
f. 3" female-female PVC or ABS coupling (not sewer pipe)
(Beckett AFII burner only);
g. 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 solvent cement that
is approved for bonding the two plastics.
Intake pipe length - DV-2000™
The DV-2000 ™ venting system has been certified for 36
equivalent meters (120') of 3" intake pipe. Count a 90° elbow as
3.0 equivalent meters (10') and a 45° elbow as 1.5 equivalent
meters (5') in the calculation.
For Example:
2 lengths of 1.5 m (5') = 3.0 equivalent meters (10')
1 length of 3.0 m (10') = 3.0 equivalent meters (10')
3 elbows 90° = 9.0 equivalent meters (30')
2 elbows 45° = 3.0 equivalent meters (10')
1 elbow 90° = 3.0 equivalent meters (10')
1 elbow 45° (Riello Burner) = 1.5 equivalent meters ( 5')
Total =23.0 equivalent meters (75'),
which is acceptable.
Intake pipe installation - DV-2000™
Obtain the necessary additional parts, to complete the installation,
and start the piping at the burner. If the optional vestibule has been
installed, remove the appropriate knockouts in the side panels of
the vestibule. The lower 5" knockout in the right hand panel is used
for the Beckett AFII burner. The higher 5" knockouts on the right
and left-hand panels are for right or left connection to the Riello 40-
BF burner.
Beckett AFII burner
Remove the burner intake cover by removing the 3 screws
securing it in place. Discard the cover and screws. Liberally apply
silicone around the end of a 3" coupling and fully insert the
siliconed end into the burner opening. Fasten securely with 3 self-
tapping sheet metal screws.
Riello 40-BF burner
Fully insert the female end of the 2" - 90° street elbow into the
combustion air fitting on top of the burner. Fasten securely with 3
self-tapping sheet metal screws. Cement the 2" end of the 3"
female to the 2” female reducer onto the male end of the 2" - 90°
street elbow. If these parts are not easily obtained, use a 3" - 90°
street elbow with the male end fitted over the combustion air fitting.
The fitting will have to be silicone sealed as the fit is a bit loose.
Fasten securely with 3 self-tapping sheet metal screws.
Terminal connection
Insert the 3" - 90° female-female elbow onto the stainless steel air
intake fitting located on the right side of the vent terminal (viewed
from the rear). Fasten securely with 3 self-tapping sheet metal
screws.
13