Lighting Instructions - Goodman GSM Installation & Operating Instructions Manual

REMOVING AN EXISTING APPLIANCE
When replacing an existing appliance, the resulting installation must comply with all local codes, or in
the abscence of local codes, to the National Fuel Gas Code ANSI Z223.1 and/or CAN/CGA B149
installation codes and these installation instructions. If the installation of this furnace requires that an
existing appliance be removed from a venting system which still serves another gas fired appliance,
this may require that the existing vent be re-sized. The following steps shall be performed with each
appliance connected to the venting system placed in operation while any other appliance connected
to the venting system are not in operation;
a) Seal any unused openings in the venting system;
b) Inspect the venting system for proper size and horizontal pitch, as required in the National Fuel Gas
Code, ANSI Z223.1 or the CAN/CGA B149 Installation Codes and these instructions. Determine that
there is no blockage or restriction, leakage, corrosion and other deficiencies which could cause an
unsafe condition;
c) In so far as practical close all building doors and windows and all doors between the space in
which the appliance(s) connected to the venting system are located and other spaces in the building.
Turn on clothes dryers and any other appliance not connected to the venting system. Turn on any
exhaust fans such as range hoods and bathroom exhausts, so they shall operate at their maximum
speed. Do not operate a summer exhaust fan. Close fireplace dampers;
d) Follow lighting instructions. Place the appliance being inspected in operation. Adjust the
thermostat so the appliance shall operate continuously;
e) Test for draft hood equipped appliance spillage at the relief opening after five (5) minutes of burner
operation. Use the flame of a match or candle;
f) After it has been determined that each appliance connected to the venting system properly vents
when tested as outlined above, return all doors, windows, exhaust fans, fireplace dampers and any
other gas-burning appliance back to their previous condition of use;
g) If improper venting is observed during any of the above tests, the venting system must be
corrected.
If re-sizing of the existing vent is required this shall be sized in accordance with Appendix G of the
National Fuel Gas Code, ANSI Z223.1 or CAN/CGA B149 Installation Codes.
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