Goodman Mfg GKS9 User Manual
®
TECHNICAL MANUTECHNICAL MANU
TECHNICAL MANU
TECHNICAL MANUTECHNICAL MANU
ALAL
AL
ALAL
GKS9
40" 90% Gas Furnaces
• Refer to 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 © 2006-2007, 2009 Goodman Manufacturing Company, L.P.
®
C
US
RT6612017r2
June 2009
PRODUCT IDENTIFICATION
The model and manufacturing number are used for positive identification of component parts used in manufacturing. When
engineering and manufacturing changes take place where interchangeability of components are affected, the manufacturing number will change.
It is very important to use the model and manufacturing numbers at all times when requesting service or parts information.
G K S 9 045 3 B X A
Product Type
G: Gas Furnace
Supply Type
C: Counterflow/Horizontal
M: Upflow/Horizontal
K: Residential Upflow
Furnace Type
S: Single Stage/Multi-Speed
Model Family
9: Air Command 90
(40" Height)
Nominal Input
Airflow
Capability
3: 1200
4: 1600
5: 2000
A
Minor Revision
A: Initial Release
Major Revision
A: Initial Release
Additional Features
N: Natural Gas
X : Low NOx
Cabinet Width
A: 14"
B: 17 1/2"
C: 21"
D: 24 1/2"
045: 45,000 Btuh
070: 70,000 Btuh
090: 90,000 Btuh
115: 115,000 Btuh
HIGH VOLTAGE!
WARNING
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.
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
WARNING
individuals meeting the requirements of an "entry level
technician" 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
2
PRODUCT IDENTIFICATION
The model and manufacturing number are used for positive identification of component parts used in manufacturing. When
engineering and manufacturing changes take place where interchangeability of components are affected, the manufacturing number will change.
GKS90453BX*
GKS90703BX*
GKS90704CX*
GKS90904CX*
GKS90905DX*
GKS91155DX*
* Indicates minor revision & is not used for order entry or inventory management
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
The GKS9 furnaces are equipped with an electronic ignition
device 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.
Notes:
1. Installer must supply one or two PVC pipes: one for combustion air (optional) and one for the flue outlet (required).
Vent pipe must be either 2” or 3” in diameter, depending
upon furnace input, number of elbows, length of run and
installation (1 or 2 pipes). The optional Combustion Air
Pipe is dependent on installation/code requirements and
must be 2” or 3” diameter PVC.
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.
Accessibility Clearances (Minimum)
MINIMUM CLEARANCES TO COMBUSTIBLE MATERIALS
(INCHES)
POSITION* FRONT SIDES REAR TOP FLUE FLOOR
Upflow - 0 0 1 0 C
Counterflow 1 0 0 1 0 NC
Horizontal 1 6 0 4 0 C
*= All positioning is determined as installed unit is viewed from the front.
C= If placed on combustible floor, floor MUST be wood only.
NC= For instalaltion on non-combustible floors only. A combustible
subbase must be used for installations on combustible flooring.
36" 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.
PROPANE AND HIGH ALTITUDE KITS
0 - 7,000 ft. 7,001-9,000 ft. 9,001-11,000 ft. 7,001-11,000 ft. 7,001-11,000 ft.
LPT-00A
Propane
Conversion Kit
(#55 Orifices)
TBD TBD TBD TBD
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.
4
COMPONENT IDENTIFICATION
29
25
17
18
27
26
3
2
1
24
6
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
28
19
20
BLOWER COMPARTMENT BURNER COMPARTMENT
23
Upflow/Horizontal
1 Gas Valve
2 Gas Line Entrance (Alternate)
3 Combustion Air Intake Connection / “Coupling”
4 Hot Surface Igniter
5 Burners
6 Rollout Limit
7 Flame Sensor
8 Flue Pipe Connection / “Coupling”
9 Flue Pipe (Internal)
1 0 Primary Limit
11 Pressure Switch
12 Gas Line Entrance
13 Rubber Elbow
14 Flue Pipe Connection (Alternate)
15 Induced Draft Blower
21
22
16 Electrical Connection Inlets (Alternate)
17 Coil Front Cover Drain Port
18 Drain Line Penetrations
19 Blower Door Interlock Switch
20 24-Volt Thermostat Connections
21 Integrated Control Module
(with fuse and diagnostic LED)
22 Transformer (40 VA)
23 Circulator Blower
2 4 Auxiliary Limit
25 Gas Manifold
26 Junction Box
27 Coil Front Cover
28 Drain Trap
29 Electrical Connection Inlets
5
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