7
WARNING:
CARBON MONOXIDE POISONING HAZARD
Failure to follow the steps outlined below for each appliance connected to the venting system
being placed into operation could result in carbon monoxide poisoning or death. The following
steps shall be followed with each individual appliance connected to the venting system being
placed in operation, while all other appliances connected to the venting system are not in
operation:
1. Seal any unused openings in the venting system.
2. Inspect the venting system for proper size and horizontal pitch, as required in the
National
Fuel Gas Code, ANSI Z223. 1/NFPA 54 or the CSA B149.1, Natural Gas and Propane Installation
Codes
and these instructions. Determine that there is no blockage or restriction, leakage,
corrosion and other defi ciencies which could cause an unsafe condition.
3. As 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
of the building.
4. Close fi replace dampers.
5. Turn on clothes dryers and any appliance not connected to the venting system. Turn on
any exhaust fans, such as range hoods and bathroom exhausts, so they are operating at
maximum speed. Do not operate a summer exhaust fan.
6. Follow the lighting instructions. Place the appliance being inspected into operation. Adjust
the thermostat so appliance is operating continuously.
7. Test for spillage from draft hood equipped appliances at the draft hood relief opening after
5 minutes of main burner operation. Use the fl ame of a match or candle.
8. If improper venting is observed during any of the above tests, the venting system must
be corrected in accordance with the
National Fuel Gas Code, ANSI Z223.1/NFPA 54 and/or
CSA B149.1, Natural Gas and Propane Installation Codes
.
9. After it has been determined that each appliance connected to the venting system properly
vents when tested as outlined above, return doors, windows, exhaust fans, fi replace
dampers and any other gas-fi red burning appliance to their previous conditions of use.
INSTALLATION CLEARANCES to COMBUSTIBLE MATERIALS
For UPFLOW, HORIZONTAL & DOWNFLOW FURNACES
Left Side ...................................0 Inches
Vent ............................................. 1 Inch
Top ...........................................1 Inches
Right Side ................................0 Inches
Back .........................................0 Inches
Front....................................... 4 Inches
†
†
Allow 24 in. minimum clearance for servicing. Recommended clearance is 36 in.
NOTE:
The furnace is listed for installation on combustible or non-combustible fl ooring. However, wood is the only combustible
fl ooring allowed for installation. Downfl ow models must use the appropriate subase kit when installing over a wood fl oor
.
Table 1. Minimum Clearances to Combustible Materials
LEFT SIDE
RIGHT SIDE
BOTTOM
UPFLOW APPLICATION
TOP
SIDE
BO
TT
OM
HORIZONTAL APPLICATION
TO
P
SIDE
DOWNFLOW APPLICATION
BOTTOM
TOP
RIGHT SIDE
LEFT SIDE
