9
441 01 5001 00
CARBON MONOXIDE POISONING HAZARD
Failure to follow the steps outlined below for each
appliance connected to the venting system being placed
into 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
CSA B149.1, Natural Gas and Pro-
pane Installation Codes
and these instructions. Deter-
mine that there is no blockage or restriction, leakage, cor-
rosion and other deficiencies which could cause an un-
safe 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 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 will operate
at maximum speed. Do not operate a summer exhaust
fan.
6.Follow the lighting instructions. Place the appliance being
inspected into operation. Adjust 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 flame of a match or candle. (
Figure 5
)
8.If improper venting is observed, during any of the above
tests, the venting system must be corrected in accor-
dance with the
National Fuel Gas Code, ANSI
Z223.1/NFPA 54
or
CSA B149.1, Natural Gas and Pro-
pane Installation Codes
.
9.After it has been determined that each appliance con-
nected to the venting system properly vents when tested
as outlined above, return doors, windows, exhaust fans,
fireplace dampers and any other gas--fired burning ap-
pliance to their previous conditions of use.
!
Vent Check
Draft Hood
Vent Pipe
Match
Typical Gas
Water Heater
Figure 5
NOTE:
If flame pulls towards draft hood, this indicates
sufficient infiltration air.
Venting to Existing Masonry Chimney
NOTE
: The tables and notes referred to below are found in the
most recent printing of the
United States National Fuel Gas
Code
venting tables.
Use the United States National Fuel Gas Code or NFGC Tables to
size the chimney or vent.
Dedicated venting of one fan assisted
furnace into any masonry chimney is restricted
. The chimney
must first be lined with either type B vent sized in accordance with
tables 1 or 2 or a listed single wall, metal lining system, sized in
accordance with the vent tables: or
(Venting as outlined with
use of optional masonry chimney kit as applicable.) (See Sec-
tion 7)
Listed, corrugated metallic chimney liner systems in masonry
chimneys shall be sized by using
United States National Fuel
Gas Code
tables for dedicated venting and
United States Na-
tional Fuel Gas Code
tables for common venting with the maxi-
mum capacity reduced by 20% (0.80 X maximum capacity) and
the minimum capacity as shown in the applicable table. Corru-
gated metal vent systems installed with bends or offsets require
additional reduction of 10% of the vent capacity for each 90
°
el-
bow.
NOTE
: Two(2) 45
°
elbows are equivalent to one (1) 90
°
elbow.
Combined Venting into a Masonry Chimney
Venting into a masonry or concrete chimney is only per-
mitted as outlined in the United States National Fuel Gas
Code venting tables.
Follow all safe venting requirements.
Note:
See section “Masonry Chimney Venting with optional kit”.
5. Horizontal Venting
Category
I
Furnaces With External Power
Venters
In order to maintain a Category
I
classification of fan assisted fur-
naces when vented horizontally with sidewall termination, a power
venter is
REQUIRED
to maintain a negative pressure in the vent-
ing system. Please consult the Fields Controls Co. or Tjernlund
Products, Inc. for power venters certified for use with our furnaces.
Vent Termination
Venting Through a Non--Combustible and
Combustible Wall
Consult External Power Venter manufacturer instructions.
CAUTION
I
t is the responsibility of the installer to properly termi-
nate the vent and provide adequate shielding. This is
essential in order to avoid water/ice damage to build-
ing, shrubs and walk--ways.
6. Gas Supply and Piping
