Operating instructions

22 GALAXY
APPENDIX A
Removal of Existing Boiler from Common Vent System
"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 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 fireplace dampers.
(d) Place in operation the appliance being inspected. Follow
the lighting instructions. Adjust thermostat so 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 remain-
ing connected to the common venting system properly
vents when tested as outlined above, return doors, win-
dows, exhaust fans, fireplace dampers and any other gas-
burning appliance to their previous conditions 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-latest edition
or CSA B149.1-00 for natural gas and propane. 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 Appendix G in the National Fuel Gas Code, ANSI
Z223.1-latest edition or CSA B149.1-00 for natural gas and
propane.