(undereaves).Theventlocationshouldnotdischarge
overasidewalk,patio,orotherwalkwaywherethecon-
densatecouldcausethesurfacetobecomeslippery.
The products of combustion must not be allowed to
accumulate within a confined space and recirculate.
Vent Hood
The unit is shipped with the vent hood, screen, and sheet
metal screws packed in the plastic bag containing the
Installation Instructions.
To attach the vent hood and screen to the unit:
1. Insert the vent screen into the vent tube so that the screen
is flush with the end of the tube, as shown in Figure 4.
Installing Vent Hood
FrontView TopView
_Vent Tube
'_-- OTE:
Screws should
pass through
sides of screen
t to hold screen
Vent Hood in place.
VentTube
Screen is lore-formed
L__J
Slotted side of
_-- vent hood faces
condenser coil.
Figure 4
2. Position the vent hood over the vent tube so that the
slotted side of the hood faces the condenser coil. Use
the four sheet metal screws (provided) to secure the
vent hood to the vent tube. The screws should pass
through the sides of the screen in order to hold the
screen in place.
Existing Venting Systems
When an existing furnace is removed or replaced, the
original venting system may no longer be sized to properly
vent the attached appliances. An improperly sized venting
system can result in spillage of flue products into the living
space, the formation of condensate, leakage, etc. See the
following WARNING box for proper test procedure.
kWARNING
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 monox-
ide poisoning or death.
The following steps shall be followed for each appli-
ance connected to the venting system being placed
into operation, while all other appliances connected to
the common venting system are not in operation:
1. Seal any unused openings in the common venting
system.
2. Visually inspect the venting system for proper size
and horizontal pitch, as required in the National
Fuel Gas Code, ANSI Z223.1/NFPA 54 (latest
edition) orthe CSA B149.1, Natural Gas and
Propane Installation Codes and these instructions.
Determine that there is no blockage or restriction,
leakage, corrosion, or other deficiencies which
could cause an unsafe condition.
3. As far as practical, close all building doors and
windows between the space in which the
appliance(s) connected to the venting system are
located and other spaces in the building.
4. Close fireplace 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 unit
being inspected in operation. Adjust the thermo-
stat so appliance is operating continuously.
7. Test for spillage from draft hood equipped appli-
ances at the draft hood relief opening after 5
minutes of main burner operation. Use the flame
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/N FPA 54 (latest edition) and/or the
CSA B149.1, Natural Gas and Propane installa-
tion Codes.
9.
After it has been determined that each appliance
remaining connected to the venting system
properly vents when tested as outlined above,
return doors, windows, exhaust fans, fireplace
dampers, and any other gas-fired burning appli-
ance to their previous conditions of use.
# 48111B005 Page 5
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