Instruction manual

32
9.1 - “Split 80/80PP”
system
(polypropylene) or
AL29-4C (UL 1738/UL
C 636) system
NOTE:This vent system is not available
for 45WE and 45AE models
The boiler is not supplied with the fittings
needed for separate vent and combustion
air systems. A special kit must be ordered
to connect the boiler to separate vent and
combustion air systems. Figure 24 shows
fitting “A” that can freely turn 360 degrees
for optimum installation versatility.
WARNING! Under certain operating
conditions the temperature of the
boiler’s flue gases may reach 230°F,
(110 ° C). Use only the polypropylene vent
piping supplied with the boiler or a vent
system listed by a nationally recognized
testing agency for the application.
Improper venting can result in
excessive levels of carbon monoxide
which can result in severe personal
injury or death!
Pipes or elbows connected directly to the
boiler, must be mechanically secure. Follow
these instructions (make reference to figure
25):
 prepare the two collars “G” with springs
“E” and “F”;
 insert the collars “L” in hole “M”;
 insert pipe “N” inside fitting “A”
 tight the two collars “O” in a manner to
mechanically secure pipe “N” to fitting
“A”.
Horizontal vent sections must always be
pitched by at least 1/4 in/ft (21 mm/m)
towards the boiler. Horizontal combustion
air sections must always be pitched
away from the boiler by at least 1/4 in/ft
(21 mm/m) to prevent rain from entering
the boiler. The vent and combustion air
intake systems can be extended up to
300 ft. Each 90° elbow has is equivalent
to 5 ft (1,5m), of straight pipe. Each 45°
elbow has is equivalent to 2.5 ft (0.75 m),
of straight pipe.
Figure 24 - Installation of “Split 80/80 PP” fitting
system
Figure 25 - Secure fixing the pipes to the boiler
9 - INSTALLATION - Split 80/80PP venting system