Goodman Mfg GME8 User Manual
TECHNICAL MANUTECHNICAL MANU
TECHNICAL MANU
TECHNICAL MANUTECHNICAL MANU
ALAL
AL
ALAL
GME8
33-3/8" 80% Gas Furnace
Upflow/Horizontal
• Refer to current Service Manual RS6610004 for installation, operation, and troubleshooting information.
• All safety information must be followed as provided in the Service Manual.
• Refer to the appropriate Parts Catalog for part number information.
• Model numbers listed on page 3.
This manual is to be used by qualified, professionally trained HVAC technicians only.
Goodman does not assume any responsibility for property damage or personal injury due
to improper service procedures or services performed by an unqualified person.
Copyright ©2009-2010 Goodman Manufacturing Company, L.P.
®
C
RT6621020 Rev. 1
April 2010
US
PRODUCT IDENTIFICATION
The model and manufacturing number are used for positive identification of component parts used in manufacturing.
Please use these numbers when requesting service or parts information.
G M E 8 070 3 B X C A
BR AND:
G: Goodm a n
Brand
M: Up flow/Horizontal
®
SUPPLY
TYPE:
FURNACE
TYPE
E: Tw o-Stage
w/X-13
Motor
AFUE:
8: 80%
NOMINAL INPUT:
070 : 70, 000 Bt u
090 : 90, 000 Bt uh
115: 115,000 B tuh
AIRFLOW
CAPABILITY:
3 : 1200
4 : 1600
5 : 2000
CABINET WIDTH :
B: 17 1/2"
C: 21"
MAJOR
REVISION :
AD DITIO NAL
FE ATUR E S :
N: Natural Gas
X: Low NOx
MINOR
REVISION:
WARNING
WARNING
WARNING
arising from improper service or service procedures. If
you install or perform service on this unit, you assume
responsibility for any personal injury or property damage
which may result. Many jurisdictions require a license to
install or service heating and air conditioning equipment.
2
Disconnect ALL power before servicing or installing this unit. Multiple power
sources may be present. Failure to do so may cause property damage, personal
injury or death.
Goodman will not be responsible
for any injury or property damage
WARNING
HIGH VOLTAGE!
WARNING
WARNING
ments of an "entry level technician", at a minimum, as
specified by the Air-Conditioning, Heating, and Refrigeration Institute (AHRI). Attempting to install or repair this
unit without such background may result in product
damage, personal injury or death.
Installation and repair of this unit
should be performed ONLY by individuals meeting the require-
PRODUCT IDENTIFICATION
The model and manufacturing number are used for positive identification of component parts used in manufacturing.
Please use these numbers when requesting service or parts information.
GME80703BXC*
GME80905CXC*
GME81155CXC*
All models are low NOx models.
WARNING
WARNING
WARNING
WARNING
Serious property damage, personal injury, reduced unit
performance and/or hazardous conditions may result
from the use of such non-approved devices.
The United States Environmental Protection Agency (“EPA”) has issued various regulations regarding the introduction and disposal of refrigerants introduced into this unit. Failure to follow
these regulations may harm the environment and can lead to the imposition of substantial fines.
These regulations may vary by jurisdiction. Should questions arise, contact your local EPA office.
Do not connect or use any device
that is not design certified by
Goodman for use with this unit.
WARNING
WARNING
do not store combustible materials or use gasoline or
other flammable liquids or vapors in the vicinity of this
appliance.
To prevent the risk of property
damage, personal injury, or death,
3
PRODUCT DESIGN
General Operation
furnaces are equipped with an electronic ignition de-
GME8
vice used to light the burners and an induced draft blower to
exhaust combustion products.
An interlock switch prevents furnace operation if the blower
door is not in place. Keep the blower access door in place
except for inspection and maintenance.
This furnace is also equipped with a self-diagnosing electronic control module. In the event a furnace component is
not operating properly, the control module LED will flash on
and off in a factory-programmed sequence, depending on
the problem encountered. This light can be viewed through
the observation window in the blower access door. Refer to
the Troubleshooting Chart for further explanation of the LED
codes and Abnormal Operation - Integrated Ignition Control
section in the Service Instructions for an explanation of the
possible problem.
The rated heating capacity of the furnace should be greater
than or equal to the total heat loss of the area to be heated.
The total heat loss should be calculated by an approved
method or in accordance with “ASHRAE Guide” or “Manual
J-Load Calculations” published by the Air Conditioning Contractors of America.
*Obtain from: American National Standards Institute 1430
Broadway New York, NY 10018
Location Considerations
• The furnace should be as centralized as is practical
with respect to the air distribution system.
• Do not install the furnace directly on carpeting, tile, or
combustible material other than wood flooring.
• When suspending the furnace from rafters or joists,
use 3/8" threaded rod and 2” x 2” x 3/8” angle as
shown in the Installation and Service Instructions. The
length of the rod will depend on the application and
clearance necessary.
• When installed in a residential garage, the furnace
must be positioned so the burners and ignition source
are located not less than 18 inches (457 mm) above
the floor and protected from physical damage by vehicles.
NOTE: Gas furnaces with induced draft blowers draw
products of combustion through a heat exchanger allowing,
in some instances, common venting with natural draft
appliances (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 accordance with the National Standard of
Canada, CAN/CSA B149.1 and CAN/CSA B149.2 - latest
editions and amendments.
NOTE: The vertical height of the Category I venting system
must be at least as great as the horizontal length of the
venting system.
2. Line voltage wiring can enter through the right or left side
of the furnace. Low voltage wiring can enter through the
right or left side of furnace.
3. Conversion kits for high altitude natural or propane gas
operation are available. See High Altitude Derate chart
for details.
4. Installer must supply the following gas line fittings, depending on which entrance is used:
Left -- Two 90º Elbows, one close nipple, straight pipe.
Right -- Straight pipe to reach gas valve.
WARNING
O PREVENT POSSIBLE PERSONAL INJURY OR DEATH DUE TO ASPHYXIATION,
T
THIS FURNACE MUST BE
C
ATEGORY
III
VENTING.
ATEGORY I VENTED. DO NOT VENT USING
C
Notes:
1. Category I Venting is venting at a non-positive pressure.
A furnace vented as Category I is considered a fan-assisted appliance and the vent system does not have to
be “gas tight.”
4
PRODUCT DESIGN
Accessibility Clearances (Minimum)
Unobstructed front clearanace of 24" for servicing is recommended.
Top clearance for horizontal confirguration - 1"
MINIMUM CLEARANCE TO COMBUSTIBLE M ATE RIALS - INCHES
Sides Rear Front Bottom
103C611
Appr oved fo r line co ntac t in the horizontal pos tion.
* 24" clearanc e for serv iceability r ecommended.
** Single Wall Vent (S W) to be used onl y as a connector.
Refer to venting tables outlined in the installation manual for
add iti onal venting requi r ements.
Vent
SW B
Top
24" at front is required for servicing or cleaning.
Note: In all cases accessibility clearance shall take prece-
dence over clearances from the enclosure where accessibility clearances are greater. All dimensions are given in inches.
High Altitude Derate
When this furnace is installed at high altitude, the appropriate High Altitude orifice kit must be installed. This is required due to the natural reduction in the density of both the
gas fuel and combustion air as altitude increases. The kit
will provide the proper design certified input rate within the
specified altitude range.
INPUT PER BURNER - 22,500 BTUH NATURAL GAS / 20,000 BTUH L.P.
ELEVATION ABOVE SEA-LEVEL (FEET)
US BURNER
ORIFICE
CANADA BURNER
ORIFICE
HA-02 HIGH ALTITUDE CONVERSION KIT REQUIRED
Tabled data is based upon the furnace input being reduced for altitudes above sea level. U.S. 4% per 1,000 feet.
Canada 10% derate for 2,000-4,000 feet.
2000 3000 4000 4500 5000 6000 7000 8000
44/55 44/55 45/56 45/56 46/57 47/58 47/58
44/55 47/57
High altitude kits are purchased according to the installation altitude and usage of either natural or propane gas. Refer
to the chart above for a tabular listing of appropriate altitude
ranges and corresponding manufacturer’s high altitude Natural Gas and Propane Gas kits. For a tabular listing of appropriate altitude ranges and corresponding manufacturer's High
Altitude Pressure Switch kits, refer to either the Pressure
Switch Trip Points & Usage Chart in this manual or the Accessory Charts in Service Instructions.
5
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