Common Vent Systems - RBI Series 8800 Installation And Operation Manual

SERIES 8800 & 8900 INSTALLATION AND OPERATING INSTRUCTIONS
Table 3 - Equivalent Breeching & Chimney Size
Model Size
Size in (mm)
420 10 (254)
530 10 (254)
630 12 (305)
735 14 (356)
840 14 (356)
950 14 (356)
1050 16 (406)
1160 16 (406)
1260 16 (406)
1370 18 (457)
1470 18 (457)
Note: These sizes are based on a 20 foot (6.1m) chimney height.
When more than one appliance is connected to the
same chimney flue the flue must be large enough to
safely vent the combined output of all the appliances.
WARNING: If an appliance using any type of a
mechanical draft system operating under
positive pressure is connected to a chimney
flue, never connect any other appliances to this
flue. Doing so can result in the accumulation of
carbon monoxide which can cause severe
personal injury or death!
VENT CONNECTIONS
Always use a type B or single wall galvanized metal vent
pipe the same diameter as the draft diverter flue collar.
Use the shortest, straightest vent system possible for
the installation. If horizontal runs exceed 6 feet (1.8 m)
they must be supported at 6 foot (1.8 m) intervals with
overhead hangers. The vent system should be sloped
up toward the chimney at a minimum rate of 1/4 inch/
foot (2 cm/m) and terminate flush with the inside of the
chimney flue. Fasten each connection with at least 3
corrosion resistant sheet metal screws.
WARNING: Never modify or alter any part of the
boiler's draft diverter. This includes the removal
or alteration of any baffles. Never install a vent
pipe of a diameter different than that of the
boiler draft hood flue collar. Failure to comply
with this warning can result in severe personal
injury or death.
Model Size
Size in (mm)
1580 18 (457)
1685 18 (457)
1700 20 (508)
1900 20 (508)
2000 22 (559)
2400 24 (610)
2800 26 (660)
3200 28 (711)
3600 30 (762)
4000 30 (762)
Always provide a minimum clearance of 6 inches
(152 mm) between type C vent pipe and any
combustible materials. Type B1 vent may be used,
clearance between it and any combustible material must
be as listed.
WARNING: Failure to maintain minimum
clearances between vent connectors and any
combustible material can result in a fire causing
extensive property damage, severe personal
injury or death!

COMMON VENT SYSTEMS

If an existing boiler/water heater is removed from a
common venting system, the common venting system
may then be too large for the proper venting of the
remaining appliances connected to it. At the time of
removal of an existing boiler/water heater, the following
steps shall be followed with each appliance remaining
connected to the common venting system placed in
operation, while the other appliances remaining
connected to the common venting system are not in
operation.
Au moment du retrait d'une chaudière existante, les
mesures suivantes doivent être prises pour chaque
appareil toujours raccordé au système d'évacuation
commun et qui fonctionne alors que d'autres appareils
toujours raccordés au système d'évacuation ne fonction-
nent pas: système d'évacuation
a) Seal any unused openings in the common venting
system.
Sceller toutes les ouvertures non utilisées du sys-
tème d'évacuation.
b) Visually inspect the venting system for proper size
and horizontal pitch and determine there is no
blockage or restriction, leakage, corrosion and other
deficiencies which could cause an unsafe condition.
Inspecter de façon visuelle le système d'évacu-ation
pour déterminer la grosser et l'inclinaison
horizontale qui conviennent et s'assurer que le
système est exempt d'obstruction, d'étranglement
de fruite, de corrosion et autres défaillances qui
pourraient présenter des risques.
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