J962V Installation Manual

7
COMBUSTION AIR & VENTING
REQUIREMENTS
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 deficiencies 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 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
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 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/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, fireplace
dampers and any other gas-fired burning
appliance to their previous conditions of use.
IMPORTANT INFORMATION:
• This furnace must be vented in compliance with
the current revision of the National Fuel Gas Code
(ANSI-Z223.1/NFPA54). Instructions for determining
the adequacy of an installation can be found in the
current revision of the NFGC (ANSI Z223.1 / NFPA54).
Consult local codes for special requirements. These
requirements are for US installations as found in
the NFGC.
• Furnace installation using methods other than those
described in the following sections must comply
with the National Fuel Gas Code (NFGC) and all
applicable local codes.
• Requirements in Canada (B149.1) are structured
differently. In Canada, venting shall conform to
the requirements of the current (CAN/CGA B149.1)
installation codes. Consult local codes for special
requirements.
• Provisions must be made during the installation
of this furnace that provide an adequate supply of
air for combustion. The combustion air from the
outside needs to be clear of chemicals that can
cause corrosion. The inlet pipe should not be placed
near corrosive chemicals such as those listed on
page 5.
WARNING:
Upon completion of the furnace installation,
carefully inspect the entire flue system both
inside and outside the furnace to assure it is
properly sealed. Leaks in the flue system can
result in serious personal injury or death due
to exposure of flue products, including carbon
monoxide.
WARNING:
This furnace must not be vented with other
appliances, even if that appliance is of the
condensing type. Common venting can result
in severe corrosion of other appliances or their
venting and can allow combustion gases to
escape through such appliances or vents. Do
not vent the furnace to a fireplace chimney or
building chase.
This condensing furnace is certified for installation either as
a Direct Vent (2-pipe) or Conventional (1-pipe) appliance.
Direct Vent appliances draw combustion air from the
outdoors and vent combustion products back outside.
Installation with air taken from around the furnace is often
referred to as Conventional installation - i.e. only the vent
(exhaust) pipe is provided.
Another important consideration when selecting one or
two pipe installation is the quality of the Indoor air which
can sometimes be contaminated with various household
chemicals . These chemicals can cause severe corrosion
in the furnace combustion system. A 2-pipe installation