Requirements - Goodman VC8 Installation Instructions Manual

C V
OMBUSTION AND ENTILATION
T
O AVOID PROPERTY DAMAGE
SUFFICIENT FRESH AIR FOR PROPER
FLUE GASES MUST BE SUPPLIED
SUPPLIED INTO THE FURNACE
Improved construction and additional insulation in buildings have
reduced heat loss by reducing air infiltration and escape around
doors and windows. These changes have helped in reducing
heating/cooling costs but have created a problem supplying
combustion and ventilation air for gas fired and other fuel burn-
ing appliances. Appliances that pull air out of the house (clothes
dryers, exhaust fans, fireplaces, etc.) increase the problem by
starving appliances for air.
House depressurization can cause back drafting or improper
combustion of gas-fired appliances, thereby exposing building
occupants to gas combustion products that could include car-
bon monoxide.
If this furnace is to be installed in the same space with other
gas appliances, such as a water heater, ensure there is an
adequate supply of combustion and ventilation air for the other
appliances. Refer to the latest edition of the National Fuel Gas
Code NFPA 54/ANSI Z223.1 or CAN/CSA B149 Installation
Codes or applicable provisions of the local building codes for
determining the combustion air requirements for the appliances.
This furnace must use indoor air for combustion. It cannot be
installed as a direct vent (i.e., sealed combustion) furnace.
Most homes will require outside air be supplied to the furnace
area by means of ventilation grilles or ducts connecting directly
to the outdoors or spaces open to the outdoors such as attics
or crawl spaces.
C I V
ATEGORY ENTING
T
O PREVENT POSSIBLE PERSONAL
,
ASPHYXIATION THIS FURNACE
C III
VENT USING ATEGORY VENTING
Category I Venting is venting at a non-positive pressure. A
furnace vented as Category I is considered a fan-assisted ap-
pliance and the vent system does not have to be "gas tight."
NOTE: Single stage gas furnaces with induced draft blowers
draw products of combustion through a heat exchanger allow-
ing, in some instances, common venting with natural draft ap-
pliances (i.e. water heaters). All installations must be vented in
accordance with National Fuel Gas Code NFPA 54/ANSI Z223.1
- latest edition. In Canada, the furnaces must be vented in ac-
cordance with the National Standard of Canada, CAN/CSA
B149.1 and CAN/CSA B149.2 - latest editions and amendments.
A R
IR EQUIREMENTS
WARNING
, ,
PERSONAL INJURY OR DEATH
COMBUSTION AND VENTILATION
. M
OST HOMES REQUIRE OUTSIDE
.
AREA
(V V
ERTICAL ENTING
WARNING
INJURY OR DEATH DUE TO
C I . D
MUST BE ATEGORY VENTED
.
NOTE: The vertical height of the Category I venting system
must be at least as great as the horizontal length of the venting
system.
OF
T
O PREVENT POSSIBLE
AIR BE
,
ASPHYXIATION
INDUCED DRAFT
The minimum vent diameter for the Category I venting system
is as shown:
MODEL
060
080
100
Under some conditions, larger vents than those shown above
may be required or allowed. When an existing furnace is re-
moved from a venting system serving other appliances, the
venting system may be too large to properly vent the remaining
attached appliances.
Upflow or Horizontal units are shipped with the induced draft
blower discharging from the top of the furnace. ("Top" is as
viewed for an upflow installation.) The induced draft blower can
be rotated 90 degrees for Category I venting. For horizontal
installations, a four inch single wall pipe can be used to extend
the induced draft blower outlet 1/2" beyond the furnace cabinet.
THIS PRODUCT IS NOT DESIGNED FOR COUNTERCLOCK-
WISE INDUCED DRAFT BLOWER ROTATION.
Vent the furnace in accordance with the National Fuel Gas
Code NFPA 54/ANSI Z223.1 - latest edition. In Canada, vent
the furnace in accordance with the National Standard of Canada,
CAN/CSA B149.1 and CAN/CSA B149.2 - latest editions and
amendments.
)
Venting
THIS FURNACE IS NOT DESIGN CERTIFIED TO BE HORI-
ZONTALLY VENTED.
O NOT
To rotate the induced draft blower clockwise, you will need to
purchase one (0270F01119) chimney transition bottom kit.
1. Disconnect electrical power from the furnace.
2. Disconnect the induced draft blower power leads, flue
pipe, and pressure switch tubing.
3. Remove the round cutout from the right side of the wrapper.
4. Remove and save the four screws that fasten the induced
draft blower to the flue collector box.
5. Remove and save the three screws that hold the chimney
assembly to the induced draft blower.
6. Remove and save the four screws that fasten the chimney
top to the chimney bottom.
7. Remove the chimney transition bottom from the transition
bottom kit.
10
WARNING
PERSONAL INJURY OR DEATH
COMMON VENTING WITH OTHER
.
APPLIANCES IS NOT ALLOWED
MINIMUM VENT
UPFLOW COUNTERFLOW
4 inch 4 inch
4 inch 4 inch
5 inch 4 inch
DUE TO
'
MANUFACTURER S