WARNING
NEVER COMMON VENT A TRIUMPH BOILER WITH OTHER APPLIANCES
B. Removing an Existing Boiler From a Common Chimney
Read this only if the TRIUMPH boiler is replacing an existing boiler that is being removed from a common
chimney.
In some cases, when an existing boiler is removed from a common chimney, the common venting system may
be too large for the remaining appliances. 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.
(a) Seal any unused openings in the common venting system.
(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.
(c) Insofar as practical, close all building doors and windows and all doors between the space in which all
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 fireplace dampers.
(d) Place in operation the appliance being inspected. Follow the lighting instructions. Adjust thermostat so the
appliance will operate continuously.
(e) Test for spillage at the draft hood relief opening after 5 minutes of main burner operation. Use the flame of
a match or candle, or smoke from a cigarette, cigar, or pipe.
(f) After it has been determined that each appliance remaining connected to the common venting system
properly vents when tested as outlined above, return doors, windows, exhaust fans, fireplace dampers and
any other gas-burning appliances to their previous condition of use.
(g) Any improper operation of the common venting system should be corrected so the installation conforms
with the National Fuel Gas Code, ANSI Z223.1. When re-sizing any portion of the common venting
system, the common venting system should be re-sized to approach the minimum size as determined using
the appropriate tables in Part 11 of the National Fuel Gas Code, ANSI Z223.1.
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