IBC Technologies SL 80-399 - Page 8

INSTALLATION AND OPERATION INSTRUCTIONS
1-4
SL 80-399 MODULATING GAS BOILER
All venting must be installed in accordance with the requirements of the
jurisdiction having authority: in Canada, Part 8, Venting Systems of the B149.1-
10 Code and any other local building codes are to be followed. In the USA Part 7,
Venting of Equipment of the National Fuel Gas Code, ANSI 223.1, latest edition,
prevails. Where there is a discrepancy between the installation instructions
below, and the code requirements, the more stringent shall apply.
IMPORTANT
When an existing boiler is removed from a common venting system, the common
venting system is likely to be too large for proper venting of the appliances
remaining connected to it.
When resizing any portion of the common venting system, the common venting
system should be resized to approach the minimum size as determined using the
appropriate tables in the National Fuel Gas Code, ANSI Z223.1 - latest edition. In
Canada, use the B149.1-10.Installation Code.
At the time of removal of an existing boiler 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.
• Seal any unused opening in the common venting system.
• Visually inspect the venting system for proper size and horizontal pitch and
determine there is no blockage or restriction, leakage, corrosion and other
deciencieswhichcouldcauseanunsafecondition.
• Insofar as is practical, close all building doors and windows and all doors
between the space in which the appliances remaining connected to the
common venting system are located and other spaces of the building. Turn
on clothes dryers and any appliance not connected to the common venting
system. Turn on any exhaust fans, such as range hoods and bathroom
exhausts, so they will operate at maximum speed. Do not operate a summer
exhaustfan.Closereplacedampers.
WARNING
Venting, condensate
drainage, and combustion
air systems for all IBC
boilers must be installed in
compliance with all applicable
codes and the instructions of
their respective Installation
Manuals.
Inspect nished vent and air
piping thoroughly to ensure
all are airtight and comply
with the instructions provided
and with all requirements of
applicable codes.
Failure to comply will result
in severe personal injury or
death.
Figure 3: Flue gas venting