Camus Hydronics Dynaforce Series, Installation And Service Manual, Page: 16 / 82

16
Air
Intake
connections and will allow easier servicing of the appliance
under severe weather conditions.
2.4 SIDEWALL VENTING
When fitted with the factory supplied vent terminal, the
Dynaforce® can vent up to 100 equivalent feet. Elbows can
range from 7 to 19 feet in equivalent length depending on
centreline radius. Refer to table 3 for vent sizes.
Appliances may be installed with either a horizontal sidewall
vent or vertical roof top vent. Terminals differ with each
application. Use single wall vent and seal all joints or use
pressure rated double wall vent.
When using single wall vent, all vent connector seams and joints
must be sealed with pressure sensitive aluminium tape or
silicone sealant as specified by the vent manufacturer.
Aluminium tape must meet the provisions of SMACNA AFTS-
100-73 Standard.
Periodically check to ensure that the vent terminal is
unobstructed.
This venting system uses the appliance’s internal combustion
air fan to force the flue products out horizontally.
The Dynaforce® fan generates a positive pressure in the flue.
Combustion air is drawn from the equipment room. Sidewall
terminations are available from the factory. Refer to local codes
for proper installation and location of vent terminals.
2.4.1 SIDEWALL VENT TERMINAL & SIDEWALL
INTAKE AIR TERMINAL
• The sidewall vent terminal kit includes the wall penetration
assembly and the discharge screen assembly.
• The opening through the wall for installation of the sidewall
vent terminal must provide an air space clearance of 1 inch
(2.5cm) around the flue pipe. The diameter of the opening
for installation of the sidewall vent terminal will be 2 inches
(5cm) larger than the nominal diameter of the installed vent
pipe to the sidewall vent cap. The diameter of the opening
for the air inlet cap will be the same as the nominal size of
the pipe.
• Install the proper vent pipe to the vent terminal (provided by
Camus® Hydronics).
• Follow all requirements in the General Venting sections for
venting flue products to the outdoors.
2.4.2 LOCATION OF A SIDEWALL VENT TERMINATION
•
The vent terminal shall terminate at least 3 ft (1M) above
any forced air inlet within 10 ft (3M) horizontally.
•
The vent terminal MUST NOT terminate below a forced air
intake at any distance.
•
Do not terminate the vent in a window well, stairwell, alcove,
courtyard or other recessed area. The vent cannot
terminate below grade.
• The vent shall not terminate near soffit vents or crawl space
vents or other areas where condensate or vapor could
create a nuisance or hazard or cause property damage.
•
The vent shall not terminate over public walkways.
• The vent system shall terminate at least 3 foot (1M) above
grade, above normal snow levels and at least 7 ft (2.15M)
above grade when located adjacent to public walkways.
•
The vent terminal shall not be installed closer than 3 ft (1M)
from an inside corner of an L-shaped structure.
•
The vent terminal should have a minimum clearance of 4 ft
(1.25M) horizontally from and in no case above or below,
unless a 4 ft (1.25 m) horizontal distance is maintained from
electric meters, gas meters, regulators and relief
equipment. In all cases local codes take precedence.
•
Flue gas condensate can freeze on exterior walls or on the
vent terminal. Frozen condensate on the vent cap can result
in a blocked flue condition. Some discoloration to exterior
building surfaces can be expected. Adjacent brick or
masonry surfaces should be protected with a rust resistant
sheet metal plate.
• The vent shall not terminate where condensate vapor could
cause damage or could be detrimental to the operation of
regulators, relief valves, or other equipment.
2.4.3 LOCATION OF A SIDEWALL AIR INLET TERMINAL
•
The termination point of the sidewall air inlet must be
installed a minimum of 3 feet above ground level and above
normal levels of snow accumulation.
• The point of termination for the sidewall combustion air inlet
terminal MUST be located a minimum of 3 feet (1M)
horizontally and 12 inches (0.30M) below the point of flue
gas termination (vent cap) if it is located within a 10 foot
(3M) radius of the flue outlet.
2.4.4 LENGTH OF AIR INLET PIPE
The maximum total length of the sidewall or vertical roof top
combustion air inlet pipe as installed from the appliance to the
air inlet terminal must not exceed (100 ft) equivalent feet (30.5m)
in length. Subtract 7 (2.13 m) to 19 feet (5.8 m) of equivalent
length depending on centreline radius for each 90° elbow
installed in the air inlet pipe system. Pressure drop in 45° elbow
will be half as much.
Vent
12” (30 cm)
Minimum