Whirlpool WFD193 Specifications

93% CONVERTIBLE MULTISPEED GAS FURNACE
INSTALLATION INSTRUCTIONS
Table of Contents
GAS FURNACE SAFETY................................................................2
INSTALLATION REQUIREMENTS ................................................3
Tools and Parts ............................................................................4
Component Identification.............................................................4
Electrostatic Discharge (ESD) ......................................................5
Location Requirements ................................................................5
Installation Configurations ...........................................................7
Ductwork Requirements ..............................................................8
Electrical Requirements ...............................................................9
Gas Supply Requirements ...........................................................9
Venting Requirements..................................................................9
INSTALLATION INSTRUCTIONS ................................................11
Inspect Shipment .......................................................................11
Plan Vent System .......................................................................12
Determine Vent Pipe Direction...................................................14
Connect Venting.........................................................................22
Install Condensate Condensate Drain Lines and Drain Trap—
Standard Vent/Flue Drain Hose Connections............................23
Install Condensate Condensate Drain Lines and Drain Trap—
Alternate Vent/Flue Drain Hose Connections ............................24
Install Ductwork..........................................................................26
Filter Specifications....................................................................26
Make Electrical Connections .....................................................27
Make Gas Connections..............................................................28
Check the Furnace Input Rate ...................................................33
Adjust the Furnace Input Rate ...................................................33
Complete Installation..................................................................34
Furnace Shut Down....................................................................34
SEQUENCE OF OPERATION ......................................................35
Power Up....................................................................................35
Heating Mode—Mode DIP Switch Set to 1 STG Position.........35
Heating Mode—Mode DIP Switch Set to 2 STG Position.........35
Cooling Mode .............................................................................35
Fan Only Mode ...........................................................................36
CIRCUIT/SWITCH DESCRIPTIONS............................................36
Integrated Control Module .........................................................36
Primary Limit Switch ..................................................................36
Auxiliary Limit Switches..............................................................36
Rollout Limit Switches................................................................36
Pressure Switches......................................................................36
Flame Sensor..............................................................................36
Circulator Blower Speeds ..........................................................36
115-Volt Line Connection of Accessories—
Electronic Air Cleaner.................................................................37
MAINTENANCE ............................................................................37
Resetting from Lockout..............................................................37
Annual Inspection.......................................................................37
Filters ..........................................................................................37
Repair and Replacement Parts ..................................................38
TROUBLESHOOTING ..................................................................39
ASSISTANCE OR SERVICE .........................................................42
Accessories ................................................................................42
ATTENTION INSTALLATION PERSONNEL
As a professional installer, you have an obligation to know the product better than the customer. This includes all
safety precautions and related items. Prior to actual installation, thoroughly familiarize yourself with this instruction
manual. Pay special attention to all safety warnings. Often during installation or repair, it is possible to place
yourself in a position which is more hazardous than when the unit is in operations.
Remember, it is your responsibility to install the product safely and to know it well enough to be able to instruct a
customer in its safe use. Safety is a matter of common sense...a matter of thinking before acting. Most dealers have
a list of specific good safety practices...follow them.
The precautions listed in this installation manual are intended as supplemental to existing practices. However, if
there is a direct conflict between existing practices and the content of this manual, the precautions listed here take
precedence.
bar code
Whirlpool Gold® Model
WFD193
WPIO-299F
Whirlpool® Home Cooling and Heating
14610 Breakers Drive
Jacksonville, Florida 32258
GAS FURNACE SAFETY
CAUTION
Goodman
9 in property
Hazards or unsafe
practices may result
Recognize this symbol as a safety precaution.
WARNING
or product damage.
Hazards or unsafe practices could result in property
damage, product damage, severe personal injury or death.
Goodman 1
CAUTION
Hazards or unsafe practices may result in property
damage, product damage, personal injury or death.
IMPORTANT SAFETY INSTRUCTIONS
■
■
Use only with type of gas approved for this furnace.
Refer to the furnace rating plate.
Install this furnace only in a location and position
as specified in the “Location Requirements” section
of these instructions.
■
Provide adequate combustion and ventilation air to
the furnace space as specified in the “Venting
Requirements” section of these instructions.
■
Combustion products must be discharged outdoors.
Connect this furnace to an approved vent system
only, as specified in the “Venting Requirements”
section of these instructions.
■
■
Always install furnace to operate within the furnace’s
intended temperature-rise range with a duct system
which has an external static pressure within the
allowable range, as specified in the “Complete
Installation” section of these instructions. See
furnace rating plate.
When a furnace is installed so that supply ducts
carry air circulated by the furnace to areas outside
the space containing the furnace, the return air
shall also be handled by duct(s) sealed to the
furnace casing and terminating outside the space
containing the furnace.
ANSI Box Install G 2009 in Goodman Folder
■
■
Never test for gas leaks with an open flame. Use a
commercially available soap solution made
specifically for the detection of leaks to check all
connections, as specified in the “Make Gas
Connections” section of these instructions.
Adequate clearance must be provided around the
vent-air intake terminals.
■
A gas-fired furnace for installation in a residential
garage must be installed as specified in the
“Location Requirements” section of these
instructions.
■
The furnace shall be installed so the electrical
components are protected from water.
■
Furnaces for indoor installation on combustible
flooring shall not be installed directly on carpeting,
tile or other combustible material other than wood
flooring.
SAVE THESE INSTRUCTIONS
2
WARNING
If the information in these instructions is not followed
exactly, a fire or explosion may result causing property
damage, personal injury or loss of life.
— Do not store or use gasoline or other flammable vapors
and liquids in the vicinity of this or any other appliance.
— WHAT TO DO IF YOU SMELL GAS
Goodman 42
WARNING
Should overheating
occur or the gas43
supply fail to shut
Goodman
off, turn off the manual gas shutoff valve external to the
furnace before turning off the electrical supply.
WARNING
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any phone
in your building.
• Immediately call your gas supplier from a neighbor’s
phone. Follow the gas supplier’s instructions.
• If you cannot reach your gas supplier, call the fire
department.
— Installation and service must be performed by a
qualified installer, service agency or the gas supplier.
Please adhere to the following warnings and cautions when
installing, adjusting, altering, servicing or operating the furnace.
DANGER
To prevent personal injury or death due to improper
installation, adjustment, alteration, service or maintenance,
refer to this manual. For additional assistance or
information, consult a qualified installer, service agency
or the gas supplier.
Goodman 44
WARNING
This product contains or produces a chemical or
chemicals which may cause serious illness or death and
which are known to the State of California to cause
cancer, birth defects or other reproductive harm.
Goodman 45
WARNING
To prevent possible
property damage,
personal injury or
Goodman
46
death due to electrical shock, the furnace must be located
to protect the electrical components from water.
CARBON MONOXIDE POISONING HAZARD
Special Warning for Installation of Furnace or Air Handling
Units in Enclosed Areas such as Garages, Utility Rooms or
Parking Areas.
Carbon monoxide producing devices (such as an
automobile, space heater, gas water heater, etc.) should
not be operated in enclosed areas such as unventilated
garages, utility rooms or parking areas because of the
danger of carbon monoxide (CO) poisoning resulting from
the exhaust emissions. If a furnace or air handler is
installed in an enclosed area such as a garage, utility room
or parking area and a carbon monoxide producing device is
operated therein, there must be adequate, direct outside
ventilation.
This ventilation is necessary to avoid the danger of CO
poisoning which can occur if a carbon monoxide producing
device continues to operate in the enclosed area. Carbon
monoxide emissions can be (re)circulated throughout the
structure if the furnace or air handler is operating in any
mode.
Goodman 38
CO can cause serious illness including permanent brain
damage or death.
WARNING
Heating unit should not be utilized without reasonable,
routine inspection, maintenance and supervision. If the
building in which any such device is located will be
vacant, care should be taken that such device is
routinely inspected, maintained and monitored. In the
event that the building may be exposed to freezing
temperatures and will be vacant, all water-bearing pipes
should be drained, the building should be properly
winterized and the water source closed. In the event
that the building may be exposed to freezing
temperatures and will be vacant, any hydronic coil units
should be drained as well, and, in such case, alternative
heat sources should be utilized.
Goodman 47
INSTALLATION REQUIREMENTS
These instructions are intended as a general guide only for use by
qualified persons and do not supersede any national or local
codes in any way. Compliance with all local, state, or national
codes pertaining to this type of equipment should be determined
prior to installation.
Read this entire instruction manual, as well as the instructions
supplied in separate equipment, before starting the installation.
3
The installation of the furnace, wiring, warm air ducts, venting,
etc., must conform to the requirements of the National Fire
Protection Association; the National Fuel Gas Code, ANSI
Z223.1/NFPA No. 54 (latest edition) and the National Electrical
Code, ANSI/NFPA No. 70 (latest edition) in the United States, and
any state laws, local ordinances (including plumbing or
wastewater codes), or local gas utility requirements.
Local authorities having jurisdiction should be consulted before
installation is made. Such applicable regulations or requirements
take precedence over the general instructions in this manual.
This furnace design is certified by CSA International as a
Category IV furnace in compliance with the latest edition of
American National Standard Z21.47/CSA Standard 2.3 for GasFired Central Furnaces, for operation with Natural gas or
propane. Consult the rating plate on the furnace for gas type
before installing.
Tools and Parts
Gather the required tools and parts before starting installation.
Read and follow the instructions provided with any tools listed
here.
Parts needed
Check local codes and with gas supplier. Check existing gas
supply, electrical supply, and venting, and read “Ductwork
Requirements,” “Electrical Requirements,” “Gas Supply
Requirements” and “Venting Requirements” before purchasing
parts.
Tools needed
Pipe wrench
Screwdriver
Tape measure
Thread sealant
Level
■
■
■
■
■
■
■
■
Noncorrosive leak check solution
Test gauge with ¹⁄₈" NPT connection
(for measuring gas supply pressure)
Allen wrench
Component Identification
Counterflow/Horizontal
B
C
A
D
U
T
V D
AF
R
E
F
F
W
*
*
Z
I
J
M
N
*
H
*
G
K
I
*
AC
AB
AA
Q
X
*
P
*
F
AD
*
AE
G
AA
J
L
L
M
H
Y
Burner Compartment
E
Y
N
K
L
M
N
O
L
N
CU
T FOR
DEHU
M
M
AA
X
AB
W
P
AC
AD
O
Blower Compartment
Burner Compartment
S T
*
Blower Compartment
A
Upflow/Horizontal
Q
V
T
A. Combustion air intake connection
B. Transformer (40VA)
C. ECM variable speed circulator
blower
D. Flue pipe connection
E. Flue pipe
F. Pressure switches
G. Rubber elbow
H. Flue pipe connection (alternate)
4
U
T
S
C
R
I. Junction box
J. 2-speed induced draft blower
K. Electrical connection inlets
L. Coil front cover pressure tap
M. Coil front cover drain port
N. Drain line penetrations
O. Drain trap
P. Gas line entrance (alternate)
Q. 2-stage gas control valve
R. Gas manifold
S. Hot surface igniter
T. Rollout limit switch
U. Burners
V. Flame sensor
W. Primary limit switch
X. Gas line entrance
Y. Electrical connection inlets (alternate)
Z. Coil front cover
B
AE
AA. Blower door interlock switch
AB. Auxiliary limit switch
AC. Inductor (on some models)
AD. 24-volt thermostat connections
AE. 2-stage integrated control
module (with fuse and
diagnostic LED)
AF. Combustion air inlet pipe
Electrostatic Discharge (ESD)
NOTE: Discharge static electricity accumulated in the body
before touching the unit. An electrostatic discharge can adversely
affect electrical components.
Use the following steps during furnace installations and servicing
to avoid damage to the integrated control module. By putting the
furnace, the control and the person at the same electrostatic
potential, these steps will help avoid exposing the integrated
control module to electrostatic discharge. This procedure is
applicable to both installed and non installed (ungrounded)
furnaces.
1. Disconnect all power to the furnace. Do not touch the
integrated control module or any wire connected to the
control prior to discharging your body’s electrostatic charge
to ground.
2. Firmly touch a clean, unpainted, metal surface of the furnace
near the control. Any tools held in a person’s hand during
grounding will be discharged also.
3. Service the integrated control module or connect wiring after
following the discharge process in Step 2.
NOTE: Do not recharge your body with static electricity by
moving or shuffling your feet or touching ungrounded
objects. Repeat Step 2 if you touch an ungrounded object.
4. Follow steps 1 through 3 before removing a new control from
its container or installing the control on a furnace. Return any
old or new controls to their containers before touching any
ungrounded object.
Location Requirements
WARNING
Possible property damage, personal injury or death due
to fire, explosion, smoke,
soot, condensation,
electrical
Goodman
48
shock or carbon monoxide may result from improper
installation, repair, operation or maintenance of this
product.
WARNING
■
Locate the furnace so that the condensate flows downward
to the drain.
NOTE: Do not locate the furnace or its condensate drainage
system in any area subject to below freezing temperatures
without the proper freeze protection. Refer to “Condensate
Drain Lines and Trap.”
■
Check that adequate combustion air is available for the
furnace. Improper or insufficient combustion air can expose
building occupants to gas combustion products that could
include carbon monoxide. Refer to “Combustion and
Ventilation Air Requirements.”
Set the furnace on a level floor to enable proper condensate
drainage. If the floor becomes wet or damp at times, place
the furnace above the floor on a concrete base sized
approximately 1¹⁄₂" (3.8 cm) larger than the base of the
furnace. Refer to “Horizontal Applications and
Considerations” for leveling of horizontal furnaces.
Check that the upflow or horizontal furnaces are not installed
directly on carpeting, or any other combustible material.
NOTE: The only combustible material allowed is wood.
■
To prevent propertyGoodman
damage, personal
49 injury or death due
to fire, do not install the furnace in a mobile home, trailer
or recreational vehicle.
■
WARNING
Goodman 50
To prevent possible equipment damage, property damage,
personal injury or death, the following bullet points must
be observed when installing the unit.
Follow the instructions listed below when selecting a furnace
location. Refer also to the guidelines provided in “Combustion
and Ventilation Air Requirements.”
■ Centrally locate the furnace with respect to the proposed or
existing air distribution system.
■ Check that the temperature of the return air entering the
furnace is between 55°F and 100°F (12.8ºC and 37.8ºC) when
the furnace is heating.
■ Provide provisions for venting combustion products outdoors
through a proper venting system. Special consideration
should be given to the vent/flue pipe routing and the
combustion air intake pipe when applicable. Refer to “Vent/
Flue Pipe and Combustion Air Pipe—Termination Locations”
for appropriate termination locations and to determine if the
piping system from the furnace to the termination can be
accomplished within the guidelines given.
NOTE: The length of flue and/or combustion air piping can be
a limiting factor in the location of the furnace.
■
A special accessory subbase must be used for the upright
counterflow unit installations over any combustible material
(including wood). Refer to subbase instructions for installation
details.
NOTE: A subbase will not be required if an air conditioning
coil is located beneath the furnace between the supply air
opening and the combustible floor.
■
Exposure to contaminated combustion air will result in safety
and performance-related problems.
NOTE: Do not install the furnace where the combustion air is
exposed to the following substances:
Chlorinated waxes or cleaners
Chlorine-based swimming pool chemicals
Water softening chemicals
Deicing salts or chemicals
Carbon tetrachloride
Halogen-type refrigerants
Cleaning solutions (such as perchloroethylene)
Printing inks
Paint removers
Varnishes
Hydrochloric acid
Cements and glues
Antistatic fabric softeners for clothes dryers
Masonry acid washing materials
5
Seal off a nondirect vent furnace if it is installed near an area
frequently contaminated by any of the above substances.
This protects the nondirect vent furnace from airborne
contaminants. To ensure that the enclosed nondirect vent
furnace has an adequate supply of combustion air, vent from
a nearby uncontaminated room or from outdoors. Refer to
“Combustion and Ventilation Air Requirements.”
If the furnace is used in connection with a cooling unit, install
the furnace upstream or in parallel with the cooling unit.
Premature heat exchanger failure will result if the cooling unit
is placed ahead of the furnace.
If the furnace is installed in a residential garage, position the
furnace so that the burners and ignition source are located
not less than 18" (45.7 cm) above the floor. Protect the
furnace from physical damage by vehicles.
If the furnace is installed horizontally, the furnace access
doors must be vertical so that the burners fire horizontally
into the heat exchanger.
NOTE: Do not install the unit with the access doors on the
“up/top” or “down/bottom” side of the furnace.
■
■
■
■
■
Installation Clearances and Accessibility
The minimum clearance information for this furnace is
provided on the furnace’s clearance label. These clearances
must be permanently maintained.
Clearances must accommodate an installation’s gas,
electrical, drain trap and drain line connections.
If the alternate combustion air intake or vent/flue connections
are used, additional clearance must be provided to
accommodate these connections. See “Plan Vent System.”
A furnace installed in a confined space (for example, a closet
or utility room) must have 2 ventilation openings with a total
minimum free area of 0.25 sq. in. (1.6 cm2) per 1,000 Btu/h of
furnace input rating. Refer to Specification Sheet applicable
to your model for minimum clearances to combustible
surfaces. One of the ventilation openings must be within 12"
(30.5 cm) of the top; the other opening must be within 12"
(30.5 cm) of the bottom of the confined space. In a typical
construction, the clearance between the door and door frame
is usually adequate to satisfy this ventilation requirement.
All servicing and cleaning of the furnace can be performed
from the front. If installed in a closet or utility room, provide
24" (61 cm) clearance in front for service if the door to the
room is not in line with the front of the furnace. Where
servicing clearances are greater than clearances to
combustibles, servicing clearances take precedence.
■
■
■
■
■
A
A
B
B
B
C
Upflow
C
A. Top
B. Side
6
Counterflow
C. Bottom
Horizontal
High Altitude Installations
High Altitude Derate
When this furnace is installed at high altitudes, the appropriate
high altitude orifice kit must be used. 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.
High altitude kits are purchased according to the installation
altitude and usage of either Natural or propane gas. Contact your
local distributor for a tabular listing of appropriate altitude ranges
and corresponding manufacturer’s high altitude (Natural, propane
gas and/or pressure switch) kits.
NOTE: Do not derate the furnace by adjusting the manifold
pressure to a lower pressure than specified on the furnace rating
plate. The combination of the lower air density and a lower
manifold pressure will keep the burner orifice from drawing the
proper amount of air into the burner. This may cause incomplete
combustion, flashback and possible yellow tipping.
In some areas, the gas supplier may artificially derate the gas in
an effort to compensate for the effects of altitude. If the gas is
artificially derated, the appropriate orifice size must be
determined based upon the Btu/ft3 content of the derated gas
and the altitude. Refer to the National Fuel Gas Code, NFPA54/
ANSI Z223.1 and information provided by the gas supplier to
determine the proper orifice size.
A different pressure switch may be required at high altitudes
regardless of the Btu/ft3 content of the fuel used. Contact your
local distributor for a tabular listing of appropriate altitude ranges
and corresponding manufacturer’s pressure switch kits.
Propane Gas/High Altitude Installations
WARNING
Goodman 52
Possible property damage, personal injury or death may
occur if the correct conversion kits are not installed. The
appropriate kits must be applied to insure safe and proper
furnace operation. All conversions must be performed by
a qualified installer or service agency.
This furnace is shipped from the factory configured for Natural
gas at standard altitude. Propane gas installations require an
orifice change to compensate for the energy content difference
between Natural and propane gas.
High altitude installations may require both a pressure switch and
an orifice change. These changes are necessary to compensate
for the natural reduction in the density of both the gas fuel and
the combustion air at higher altitude.
For installations above 7,000 ft (2,133.6 m), refer to your local
distributor for required kit(s).
Recommended Installation Positions—Horizontal
Upflow—Left Side Panel Discharge
Manifold
Pressure
Gas
Altitude
Kit
B
Pressure
High Low Switch
Orifice Stage Stage Change
Natural
None #43
0 to
7,000 ft
Propane (2,133.6 m) LPM- #55
05
3.5"
W.C.
1.9"
W.C.
None
10.0"
W.C.
6.0"
W.C.
None
A
A. Air discharge
B. Alternate flue pipe location
C. Bottom return duct connection
NOTE: In Canada, gas furnaces are only certified to 4,500 ft
(1,371.6 m).
Contact your local distributor for a tabular listing of appropriate
manufacturer’s kits for propane gas and/or high altitude
installations. The indicated kits must be used to insure proper
furnace operation. All conversions must be performed by a
qualified installer or service agency.
C
Recommended Installation Positions—Horizontal
Upflow—Right Side Panel Discharge
B
Installation Configurations
This furnace may be installed in an upright position or horizontal
on either the left or right side panel.
NOTE: Do not install this furnace on its back.
For upright upflow furnaces, the return air ductwork may be
attached to the side panel(s) and/or base pan.
For horizontal upflow furnaces, the return air ductwork must be
attached to the base pan.
For both the upright or horizontal counterflow furnaces, the
return air ductwork must be attached to the base pan (top end of
the blower compartment).
NOTE: Do not attach the ductwork to the back of the furnace.
Contact your local distributor for the proper airflow requirements
and the number of required ductwork connections. See the
“Recommended Installation Positions” illustrations for the
appropriate installation positions, ductwork connections and the
resulting airflow arrangements.
A
A. Bottom return duct connection
B. Air discharge
Installation for Horizontal Applications
Horizontal applications dictate airflow direction, ductwork
connections and flue and combustion air pipe connections. The
basic application of this furnace as a horizontal furnace differs
only slightly from an upright installation. When installing a furnace
horizontally, additional consideration must be given to the drain
trap and lines, leveling the furnace, alternate vent/flue and
combustion air connections, alternate electrical and gas line
connections, the drain pan, freeze avoidance and furnace
suspension.
A
Recommended Installation Positions—Upright Upflow
C
B
A
B
I
C
F
C
D
D
A. Air discharge
B. Alternate flue pipe location
C. Side return duct connections
D. Bottom return duct connection
H
G
E
A. Alternate vent/flue location
E. 24" (61 cm) minimum service
clearance
B. Level end-to-end
F. 4³⁄₄" (12.1 cm) minimum drain trap
C. Level side-to-side or slightly
clearance
tilted—doors 0" to ³⁄₄" (1.9 cm)
below back panel
G. Supports at both ends and middle
D. Drain line—¹⁄₄" (6.4 mm) per
H. Drain pan
foot downward slope
I. Gas line with 3" (7.6 cm) minimum
drip leg
7
Drain Trap and Lines
Alternate Electrical and Gas Line Connections
In horizontal applications, the condensate drain trap is secured to
the furnace side panel, suspending it below the furnace. A
minimum clearance of 4³⁄₄" (12.1 cm) below the furnace must be
provided for the drain trap. Additionally, the appropriate
downward piping slope must be maintained from the drain trap to
the drain location. See “Condensate Drain Trap and Lines.” If the
drain trap and drain line will be exposed to temperatures near or
below freezing, adequate measures must be taken to avoid
condensate from freezing.
This furnace has provisions allowing for electrical and gas line
connections through either side panel. In horizontal applications,
the connections can be made either through the top or bottom of
the furnace.
Freeze Avoidance
See “Horizontal Applications and Conditions—Drain Trap and
Lines.”
Furnace Suspension
Leveling
Leveling ensures proper condensate drainage from the heat
exchanger and induced draft blower. For proper flue pipe
drainage, the furnace must be level lengthwise from end to end.
The furnace should also be level from back to front, or have a
slight tilt with the access doors sloping downward ³⁄₄" (1.9 cm)
lower than the back panel. The slight tilt allows the heat
exchanger condensate, generated in the recuperator coil, to flow
forward to the recuperator coil front cover.
If suspending the furnace from rafters or joists, us ³⁄₈" (1 cm)
threaded rod and 2" x 2" x ¹⁄₈" (5.1 cm x 5.1 cm x 3.2 mm) angle
iron as shown in the “Suspended Furnace” illustration. The length
of the rod will depend on the application and the clearances
necessary.
Suspended Furnace
B
A
C
Alternate Vent/Flue Connections
In horizontal installations, provisions for alternate flue piping are
available for counterflow furnaces with right air discharge. This
configuration allows the flue piping to be run vertically through
the furnace. See “Recommended Installation Positions”
illustrations for further details. The standard piping connections
may also be used in these positions. See “Vent/Flue Pipe and
Combustion Air Pipe” for details concerning the conversion to
the alternate vent/flue connections.
When using the horizontal alternate vent configuration, you must
use the RF000142 vent drain kit. See “Alternate Flue/Vent
Location” illustration.
NOTE: Alternate vertical piping connections cannot be used
when an upflow furnace is installed with the supply air
discharging to the right, or when a counterflow furnace is
installed with the supply air discharging to the left. In either case,
use the standard flue and combustion air piping connections.
Alternate Flue/Vent Location
H
G
F
E
A. ³⁄₈" (1 cm) diameter threaded
D. Tilt outward to allow for door
rod (6)
and circulator blower removal.
B. 8" (20.3 cm) minimum clearance E. Position as close as possible to
between center rod and furnace
blower deck to allow for
cabinet to allow for circulator
circulator blower removal.
blower removal.
F. 2" x 2" x ¹⁄₈" (5.1 cm x 5.1 cm x
C. Level furnace end to end, slight
3.2 mm) angle iron (3)
forward tilt with front 0" to ³⁄₄"
G. Support nuts
(1.9 cm) below back.
H. Hold down nuts
A
Ductwork Requirements
B
■
C
■
■
■
A. Vent/Drain
B. Airflow
C. Field supplied drain hose
NOTES:
■ The field supplied drain hose is connected from the vent/
drain connection to the condensate drain line with a field
supplied connector.
■ Make a small loop in the drain hose to serve as a P-trap.
8
D
■
Install all conditioned air plenums, ducts and air filters (if not
provided on the furnace) in accordance with NFPA 90B
Standard for the Installation of Warm Air Heating and AirConditioning Systems (latest edition).
The furnace is provided with flanges for the connection of the
plenum and ducts.
All air filters must be listed as Class 2 furnace air filters.
All ductwork must be made of materials and insulated to
meet local, state and national codes. Ductwork installed
outdoors must be sealed, weatherproof and kept from
physical damage. Caulking, flashing or other means of
adequately providing a permanent weather seal should be
used where duct penetrates a building or structure opening.
A closed return duct system must be used with the return
duct connected to the furnace.
■
■
■
■
■
Do not attach ductwork to the back of the furnace.
Flexible joints may be used for supply and return connections
to reduce noise transmission.
A connecting duct must be installed between the furnace and
the utility room wall to keep the blower from interfering with
combustion air or draft when a central return is used.
Do not use a room, closet or alcove as a return air chamber.
For models with airflow over 1,800 CFM, install a bottom
return, 2 side returns or 1 side and 1 bottom return.
Electrical Requirements
WARNING
■
Proper polarity of the supply connections (“HOT” and
“NEUTRAL”) must be observed to be sure that the control
system provides the damage avoidance intended.
Gas Supply Requirements
This unit is equipped for use with Natural gas. A conversion kit is
required for use with propane. To order the correct conversion kit,
see your local distributor.
■ Gas supply piping should be installed in accordance with
local, state and national codes and the regulations of the
utility. Piping must be of adequate size to prevent undue
pressure drop. Consult the local utility or gas supplier for
complete details on special requirements for sizing gas
piping.
■ If local codes allow the use of a flexible gas appliance
connector, use a CSA design-certified outdoor flexible
stainless steel appliance connector or rigid gas supply line as
needed.
Venting Requirements
Electrical Shock Hazard
Electrically ground furnace.
Connect ground wire to green ground screw.
Failure to do so can result in death or electrical shock.
Adequate provisions for combustion air and ventilation of
furnace must be made. Refer to the National Fuel Gas Code,
ANSI Z223.1/NFPA 54 (latest edition), or applicable provisions
of the local building codes.
WARNING
Goodman 53
■
■
■
The furnace must be grounded and wired in accordance with
local codes or, in the absence of local codes, with the
National Electrical Code ANSI/NFPA No. 70 (latest edition).
In all instances, other than wiring for the thermostat, the
wiring to be done and any replacement of wire shall conform
with the temperature limitation for Type T wire (63°F [17ºC]
rise).
The line voltage supply should be routed through a readily
accessible disconnect located within sight of the furnace. A
junction box on the furnace side panel is provided for line
voltage connections. See the Wiring Connection Diagram in
the “Troubleshooting” section for specific connection
information.
Failure to follow these instructions can result in bodily
injury or death. Carefully read and follow all instructions
given in this section.
WARNING
Upon completion of the furnace installation, carefully
inspect the entire flue system both inside and outside of
Goodman 54
the furnace to assure it is properly sealed. Leaks in the
flue system can result in serious personal injury or death
due to exposure to flue products, including carbon
monoxide.
9
Existing Venting Systems
When an existing furnace is removed or replaced, the original
venting system may no longer be sized to properly vent the
attached appliances. An improperly sized venting system can
result in the spilling of flue products into the living space, the
formation of condensate, leakage, etc. See the “Carbon
Monoxide Poisoning Hazard” for proper test procedure.
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 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 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
appliances to their previous conditions of use.
10
Combustion and Ventilation Air Requirements
WARNING
51 injury or death,
To avoid propertyGoodman
damage, personal
sufficient fresh air for proper combustion and ventilation
of flue gases must be supplied. Most homes require
outside air be supplied into the furnace area.
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
burning 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 carbon
monoxide.
If this furnace is to be installed in the same space with other gas
appliances, such as a water heater, be sure that 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 (Section 5.3), or CSA B149.1-05
Installation Codes (Sections 7.2, 7.3 or 7.4), or applicable
provisions of the local building codes for determining the
combustion air requirements for the appliances.
Most homes will require outside air to 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.
Venting Options
The furnace can be installed as either direct vent or nondirect
vent furnace.
For either type of installation, special venting considerations
must be followed. See “Determine Vent Pipe Direction” for the
type of furnace and venting being installed.
Vent/Flue Pipe and Combustion Air Pipe
A condensing gas furnace achieves its high level of efficiency by
extracting almost all of the heat from the products of combustion
and cooling them to the point where condensation takes place.
Because of the relatively low flue gas temperature and water
condensation requirements, PVC pipe is used as venting
material.
NOTES:
■ This furnace must not be connected to Type B, BW, or L vent
or vent connector, and must not be vented into any portion of
a factory-built or masonry chimney except when used as a
pathway for PVC.
■ Do not common vent this appliance with another appliance or
use a vent which is used by a solid fuel appliance.
■ Do not use commercially available “no hub connectors” other
than those shipped with this product.
It is the responsibility of the installer to follow the manufacturers’
recommendations and to verify that all vent/flue piping and
connectors are compatible with furnace flue products.
Additionally, it is the responsibility of the installer to ensure that all
piping and connections possess adequate structural integrity and
support to avoid flue pipe separation, shifting or sagging during
furnace operation.
Dual Certification: Nondirect/Direct Vent
This furnace is dual certified and may be installed as a nondirect
vent (single pipe) or direct vent (dual pipe) appliance. A nondirect
vent installation requires only a vent/flue pipe, while a direct vent
installation requires both a vent/flue pipe and a combustion air
intake pipe.
Unconfined Space
An unconfined space is defined as “a space whose volume is
more than 50 cu. ft (1.4 m3) per 1,000 Btu/h of the combined input
rating of all appliances installed in that space.”
When a furnace is installed in an unconfined space in a building,
it can be assumed that the infiltration will be sufficient to supply
the required air.
If the furnace is installed in a ventilated attic or crawl space, it is
assumed that the air infiltration is sufficient to supply the required
combustion air. However, in a building of unusually tight
construction, additional outdoor air should be provided.
Confined Space
A confined space is defined as “a space whose volume is less
than 50 cu. ft (1.4 m3) per 1,000 Btu/h of the combined input
rating of all appliances installed in that space.” Use direct vent
method. See “Plan Vent System.”
Contaminated Combustion Air
Excessive exposure to contaminated combustion air will result in
performance related problems. The recommended source of
combustion air is outdoor air.
Outdoor Air as the Source of Combustion Air
If the furnace is installed in a confined space, it is recommended
that the necessary combustion air come from the outdoors by
way of an attic, crawl space, air duct, or direct opening.
Outdoor air is required as the source of combustion air when the
indoor air is contaminated with chemical substances and in the
following types of installations:
■ Furnaces installed in commercial buildings
■ Furnaces installed in buildings with indoor pools
■ Furnaces installed in hobby or craft rooms
■ Furnaces installed near chemical storage areas
■ Furnaces installed in laundry rooms
■ Furnaces installed in hair salons
Indoor Air as the Source of Combustion Air
Indoor air as the source of combustion air is acceptable in most
applications if the following guidelines are met:
■ All provisions for indoor combustion air must meet the
requirements for combustion air indicated in the National Fuel
Gas Code, ANSI Z223.1/NFPA 54 (latest edition), and/or any
applicable local codes.
■ If indoor combustion air is used, the air supply to the furnace
should not be exposed to the following substances:
Permanent wave solutions
Chlorinated waxes and cleaners
Chlorine-based swimming pool chemicals
Water softening chemicals
Deicing salts or chemicals
Carbon tetrachloride
Halogen-type refrigerants
Cleaning solvents (such as perchloroethylene)
Printing inks, paint removers, varnishes, etc.
Cements and glues
Antistatic fabric softeners for clothes dryers
Masonry acid washing materials
Chlorinated laundry products
Hydrochloric acid
INSTALLATION INSTRUCTIONS
Inspect Shipment
This furnace is shipped in one package, completely assembled
and wired. The indoor thermostat and accessories are shipped in
a separate carton when ordered.
■ Check the furnace rating plate to confirm specifications are
as ordered.
■ Upon receipt of the furnace, inspect it for possible shipping
damage. Examine the furnace inside the carton if the carton
is damaged.
If damage is found, it should be noted on the carrier’s freight
bill. Damage claims should be filed with the carrier
immediately. Claims of shortages should be filed with the
seller within 5 days.
NOTE: If any damages are discovered and reported to the carrier,
do not install the furnace, because your claim may be denied.
■
11
Plan Vent System
WARNING
Goodman 53
Failure to follow these instructions can result in bodily
injury or death. Carefully read and follow all instructions
given in this section.
WARNING
Upon completion of the furnace installation, carefully
inspect the entire flue system both inside and outside of
Goodman 54
the furnace to assure it is properly sealed. Leaks in the
flue system can result in serious personal injury or death
due to exposure to flue products, including carbon
monoxide.
IMPORTANT: The venting system must be supported with
mounting straps to keep any weight load from being applied to
the vent blower. Horizontal vent pipe must be supported every
5 ft (1.5 m) and vertical pipe should be supported every 10 ft
(3 m) to avoid sagging and provide rigid support.
Materials
■
All pipe, fittings, primer, and solvent cement must conform
with American National Standard Institute and the American
Society for Testing and Materials (ANSI/ASTM) standards.
The solvent shall be free flowing and contain no lumps,
undissolved particles, or any foreign matter that adversely
affects the joint strength or chemical resistance of the
cement. The cement shall show no gelatinization,
stratification, or separation that cannot be removed by
stirring. See Piping and Fitting Specifications chart for
approved piping and fitting materials.
WARNING
To avoid bodily injury, fire or explosion, solvent cements
must be kept away from
all ignition
Goodman
55sources (for example,
sparks, open flames and excessive heat) as they are
combustible liquids. Avoid breathing cement vapors or
contact with skin and/or eyes.
12
Piping and Fitting Specifications
Piping and Fitting Material
ASTM Specification
Schedule 40 PVC (Pipe)
D1785
Schedule 40 PVC (Cellular Core Pipe)
F891
Schedule 40 PVC (Fittings)
D2466
SDR-26 (Pipe)
D2241
Schedule 40 ABS (Pipe)
D1527
Schedule 40 ABS (Fittings)
D2468
Schedule 40 & 80 CPVC (Pipe)
F441
ABS-DWV Drain Waste and Vent
(Pipe and Fittings)
D2661, D3311
PVC-DWV Drain Waste and Vent
(Pipe and Fittings)
D2665, D3311
2" or 3" (5.1 cm or 7.6 cm) nominal diameter PVC Schedule
40 pipe meeting ASTM D1785, PVC primer meeting ASTM F656
and PVC solvent cement meeting ASTM D2564 specifications
must be used. Fittings must be DWV type fittings meeting ASTM
D2665 and ASTM D3311. Carefully follow the manufacturer’s
instructions for cutting, cleaning and solvent cementing of PVC.
Schedule 40 PVC Cellular Core (Foam Core) Plastic Pipe is a
coextruded poly (vinyl chloride) (PVC) plastic pipe with a cellular
core (contains numerous cells intentionally introduced,
interconnecting or not, distributed throughout the pipe) and
concentric inner and outer solid layers. PVC primer meeting
ASTM F656 and PVC solvent cement meeting ASTM D2564
specifications must be used. Fittings must be DWV type fittings
meeting ASTM D2665 and ASTM D3311. Carefully follow the
manufacturer’s instructions for cutting, cleaning and solvent
cementing of PVC.
To ensure proper furnace operation, this Schedule 40 PVC
Cellular Core (Foam Core) Plastic Pipe must be installed in
accordance with the installation instructions, all local building
codes and ordinances. In their absence, follow the latest edition
of the National Fuel Gas Code (NFPA 54/ANSI Z223.1), and or
CAN/CGA B149 Installation Codes, local plumbing or wastewater
codes, and other appliance codes.
Canadian Venting Requirements
In Canada, venting must conform to the requirements of the current CAN/CSA-B149.1-05 Installation Code. Use only CSA-listed, ULCS636 compliant 2" or 3" diameter PVC, PVC ceill core or ABS pipe, solvent cement and fittings throughout. The certified piping should
be clearly marked with the ULC Std “S636” on the pipe and fittings. Follow the manufacturer’s instructions for cutting, cleaning and
solvent cementing PVC and/or ABS.
The vent can be run through an existing unused chimney provided the space between the vent pipe and the chimney is insulated and
closed with a weather-tight, corrosion-resistant flashing.
Schedule 40 PVC Cellular Core (Foam Core) Plastic Pipe is not approved for use in Canada. CSA does not have a Reference Standard
for Cellular Core PVC Plastic Pipe.
Direct Vent Applications
Refer to the following tables for applicable length, elbows and pipe diameter for construction of the vent/flue and combustion air intake
pipe systems of a direct vent (dual pipe) installation. The number of elbows tabulated represents the number of elbows and/or tees in
each vent/flue and combustion air intake pipe. Elbows and/or tees used in the terminations must be included when determining the
number of elbows in the piping systems.
If the combustion air intake pipe is to be installed above a finished ceiling or other area where dripping of condensate will be
objectionable, insulation of the combustion air pipe may be required. Use ¹⁄₂" (1.3 cm) thick closed cell foam insulation where required.
Direct Vent (Dual Pipe) Maximum Allowable Length of Vent/Flue and Combustion Air Intake Pipe—ft (m)
Vent/Flue Air
Number of Elbows
Unit Input (Btu) Intake Termination Pipe Size—in. (cm) 2
045_3
070_3
070_4
070_4
090_4
090_5
115_5
3
4
5
6
7
8
Standard
2 or 2¹⁄₂ (5.12 or 6.4)
68 (20.7) 65 (19.8) 62 (18.9) 59 (18)
56 (17.1) 53 (16.2) 50 (15.2)
Alternate
2 or 2¹⁄₂ (5.12 or 6.4)
55 (16.8) 52 (15.9) 49 (14.9) 46 (14)
43 (13.1) 40 (12.2) 37 (11.3)
Standard
2 or 2¹⁄₂ (5.12 or 6.4)
68 (20.7) 65 (19.8) 62 (18.9) 59 (18)
56 (17.1) 53 (16.2) 50 (15.2)
Alternate
2 or 2¹⁄₂ (5.12 or 6.4)
55 (16.8) 52 (15.9) 49 (14.9) 46 (14)
43 (13.1) 40 (12.2) 37 (11.3)
Standard
2 or 2¹⁄₂ (5.12 or 6.4)
46 (14)
Alternate
2 or 2¹⁄₂ (5.12 or 6.4)
33 (10.1) 30 (9.1)
Standard
3 (7.6)
68 (20.7) 65 (19.8) 62 (18.9) 59 (18)
Alternate
3 (7.6)
54 (16.5) 51 (15.5) 48 (14.6) 45 (13.7) 42 (12.8) 39 (11.9) 36 (11)
Standard
3 (7.6)
68 (20.7) 65 (19.8) 62 (18.9) 59 (18)
56 (17.1) 53 (16.2) 50 (15.2)
Alternate
3 (7.6)
55 (16.8) 52 (15.9) 49 (14.9) 46 (14)
43 (13.1) 40 (12.2) 37 (11.3)
Standard
3 (7.6)
68 (20.7) 65 (19.8) 62 (18.9) 59 (18)
56 (17.1) 53 (16.2) 50 (15.2)
Alternate
3 (7.6)
55 (16.8) 52 (15.9) 49 (14.9) 46 (14)
43 (13.1) 40 (12.2) 37 (11.3)
Standard
3 (7.6)
68 (20.7) 65 (19.8) 62 (18.9) 59 (18)
56 (17.1) 53 (16.2) 50 (15.2)
Alternate
3 (7.6)
55 (16.8) 52 (15.9) 49 (14.9) 46 (14)
43 (13.1) 40 (12.2) 37 (11.3)
NOTES:
■ Elbows and/or tees used in the terminations must be
included when determining the number of elbows in the
piping system.
■ Number of elbows tabulated are for each vent/flue and
combustion air intake pipe.
■
■
43 (13.1) 40 (12.2)
27 (8.2)
Not Recommended
56 (17.1) 53 (16.2) 50 (15.2)
Minimum length of each vent/flue and combustion air intake
pipe is 5 ft (1.5 m) and one elbow/tee.
2¹⁄₂" (6.4 cm) or 3" (7.6 cm) diameter pipe can be used in
place of 2" (5.1 cm) diameter pipe.
13
Nondirect Vent Applications
Refer to the following tables for applicable length, elbows and pipe diameter for construction of the vent/flue pipe systems of a
nondirect vent (single pipe) installation. In addition to the vent/flue pipe, a single 90º elbow should be secured to the combustion air
intake to avoid inadvertent blockage. The tee used in the vent/flue termination must be included when determining the number of
elbows in the piping system.
Nondirect Vent (Single Pipe) Maximum Allowable Length of Vent/Flue Pipe—ft (m)
Number of Elbows
Models (kBtu_Tons)
Pipe Size—in. (cm)
2
3
4
5
6
7
8
045_3
2 or 2¹⁄₂ (5.12 or 6.4)
68 (20.7)
65 (19.8)
62 (18.9)
59 (18)
56 (17.1)
53 (16.2)
50 (15.2)
070_3
2 or 2¹⁄₂ (5.12 or 6.4)
68 (20.7)
65 (19.8)
62 (18.9)
59 (18)
56 (17.1)
53 (16.2)
50 (15.2)
070_4
2 or 2¹⁄₂ (5.12 or 6.4)
46 (14)
43 (13.1)
40 (12.2)
Not Recommended
070_4
3 (7.6)
68 (20.7)
65 (19.8)
62 (18.9)
59 (18)
53 (16.2)
50 (15.2)
090$
2 or 2¹⁄₂ (5.12 or 6.4)
16 (4.9)
13 (4)
10 (3)
Not Recommended
3 (7.6)
68 (20.7)
65 (19.8)
62 (18.9)
59 (18)
56 (17.1)
53 (16.2)
50 (15.2)
090_5
3 (7.6)
68 (20.7)
65 (19.8)
62 (18.9)
59 (18)
56 (17.1)
53 (16.2)
50 (15.2)
115_5
3 (7.6)
68 (20.7)
65 (19.8)
62 (18.9)
59 (18)
56 (17.1)
53 (16.2)
50 (15.2)
NOTES:
■ One 90º elbow should be secured to the combustion air
intake connection.
■ Minimum length of each vent/flue pipe is 5 ft (1.5 m) and one
elbow/tee.
■
■
56 (17.1)
Tee used in the vent/flue termination must be included when
determining the number of elbows in the piping system.
2¹⁄₂" (6.4 cm) or 3" (7.6 cm) diameter pipe can be used in
place of 2" (5.1 cm) diameter pipe.
Determine Vent Pipe Direction
The vent system of the furnace must be self-supporting and must not apply any weight load to the combustion blower.
Combustion Air Sources
There are 2 sources for combustion air:
1. From outside the building (Direct Vent)
2. From inside the building (Nondirect Vent)
Please read the information provided here about vertical and
horizontal venting, then find and follow the instructions for your
venting configuration.
14
Vertical Venting
A vertical vent should extend through the roof a minimum of 24"
(5.1 cm) and not be obstructed a minimum of 10 ft (3 m) in any
direction.
Horizontal Venting
The vent terminal location shall comply with the National Fuel
Gas Code (ANSI Z223.1) or local requirements. For informational
purposes, the side wall terminal vent clearances are shown in the
Sidewall Vent Terminal Clearances tables.
Sidewall Vent Terminal Clearances—Direct Vented Furnaces (Horizontal Venting)
V Vent Terminal
Air Supply Intake
X
Inside
Corner Detail
Area Where Terminal Is
Not Permitted
G
V
D
A
V
L
H
Fixed
Closed
E
V
Operable
B
C
B
B
V
F
V
V
I
V
B
X
V
B
A
X
V
K
J
B
M
Fixed
Closed
Operable
U.S. Installations1
A
Clearance above grade, veranda, porch, deck, or balcony
12" (30.5 cm)
B
Clearance to window or door that may be opened
6" (15.2 cm) for appliances less than 10,000 Btu/h, 9" (22.9 cm) for
appliances greater than 10,000 Btu/h, and less than or equal to
50,000 Btu/h, 12" (30.5 cm) for appliances greater than
50,000 Btu/h
C
Clearance to permanently closed window
*
D
Vertical clearance to ventilated soffit located above the
*
terminal within a horizontal distance of 24" (61 cm) from the
center line of the terminal
E
Clearance to unventilated soffit
*
F
Clearance to outside corner
*
G
Clearance to inside corner
*
H
Clearance to each side of center line extended above meter/ *
regulator assembly
I
Clearance to service regulator vent outlet
*
J
Clearance to nonmechanical air supply inlet to building or
the combustion air inlet to any other appliance
6" (15.2 cm) for appliances less than or equal to 10,000 Btu/h, 9"
(22.9 cm) for appliances greater than 10,000 Btu/h, and less than
or equal to 50,000 Btu/h, 12" (30.5 cm) for appliances greater than
50,000 Btu/h
K
Clearance to a mechanical air supply inlet
36" (91.4 cm) above if within 10 ft (3 m) horizontally
L
Clearance above paved sidewalk or paved driveway located *
on public property
M
Clearance under veranda, porch, deck, or balcony
*
1
In accordance with the current ANSI Z2223.1/NFPA 54, National Fuel Gas Code.
*Clearance in accordance with local installation codes and the requirements of the gas supplier and the manufacturer's installation
instructions.
15
Sidewall Vent Terminal Clearances—Nondirect Vented Furnaces (Horizontal Venting)
V Vent Terminal
Air Supply Intake
X
Inside
Corner Detail
Area Where Terminal Is
Not Permitted
G
V
D
A
V
L
H
Fixed
Closed
E
V
Operable
B
C
B
B
V
F
V
V
I
V
B
B
X
V
A
M
X
V
K
J
Fixed
Closed
B
Operable
U.S. Installations1
A
Clearance above grade, veranda, porch, deck, or balcony
12" (30.5 cm)
B
Clearance to window or door that may be opened
48" (121.9 cm) below or to side of opening; 12"
(30.5 cm) above opening
C
Clearance to permanently closed window
*
D
Vertical clearance to ventilated soffit located above the terminal within a
horizontal distance of 24" (61 cm) from the center line of the terminal
*
E
Clearance to unventilated soffit
*
F
Clearance to outside corner
*
G
Clearance to inside corner
*
H
Clearance to each side of center line extended above meter/regulator
assembly
*
I
Clearance to service regulator vent outlet
*
J
Clearance to nonmechanical air supply inlet to building or the combustion 48" (121.9 cm) below or to side of opening; 12"
air inlet to any other appliance
(30.5 cm) above opening
K
Clearance to a mechanical air supply inlet
36" (91.4 cm) above if within 10 ft (3 m) horizontally
L
Clearance above paved sidewalk or paved driveway located on public
property
7 ft (2.1 m)
M
Clearance under veranda, porch, deck, or balcony
*
1
In accordance with the current ANSI Z2223.1/NFPA 54, National Fuel Gas Code.
*Clearance in accordance with local installation codes and the requirements of the gas supplier and the manufacturer's installation
instructions.
16
Standard Connection—Counterflow
Vent Pipe Installation—Standard Furnace Connections
B
It is the responsibility of the installer to ensure that the piping
connections to the furnace are secure, airtight, and adequately
supported.
Attachment “couplings” for vent/flue and combustion air intake
pipe connections are provided on the furnace’s top cover
(upflow) or base pan (counterflow). To use the standard
connections, field supplied vent/flue pipe and combustion air
intake pipe (when applicable) should be secured directly to the
furnace at these locations.
D
C
A
Vent/Flue Pipe
Vent/flue pipe can be secured to the vent/flue coupling using the
rubber coupling and worm gear hose clamps provided with this
furnace. See “Standard Connections” illustration. The rubber
coupling allows separation of the vent/flue pipe from the furnace
during servicing.
NOTE: Do not use other commercially available “no hub
connectors” due to possible material conflicts.
The vent/flue pipe can also be secured using a PVC or ABS
elbow or coupling using the appropriate glue.
NOTE: For nondirect vent installations, a minimum of one 90°
elbow should be installed on the combustion air intake coupling
to guard against inadvertent blockage.
Combustion Air Pipe—Direct Vent Installations
On upflow furnaces, secure the combustion air intake pipe
directly to the air intake coupling. On counterflow furnaces,
secure the combustion air intake pipe to the air intake coupling
using the rubber coupling and worm gear hose clamps provided
with this furnace. The counterflow rubber coupling allows service
removal of air intake piping inside the furnace blower
compartment.
NOTE: Do not use other commercially available “no hub
connectors” due to possible material conflicts.
The combustion air intake pipe can also be secured directly to
the counterflow unit air intake pipe coupling.
Combustion Air Pipe—Nondirect Vent Installations
A minimum of one 90° elbow should be installed on the
combustion air intake coupling to avoid inadvertent blockage.
Standard Connection—Upflow
D
B
C
A
A. 90º PVC elbow (nondirect vent only) C. Rubber couplings with worm
gear hose clamps
B. Combustion air pipe (direct vent
D. Vent/flue pipe
only)
WARNING
Goodman
Edges of sheet metal
holes may be 56
sharp. Use gloves as
a precaution when removing hole plugs.
Vent Pipe Installation—Alternate Furnace Connections
Alternate side panel locations are available for both combustion
air inlet and vent/flue pipe connections. These connections may
be used for any of the following situations:
■ Upright counterflow installations requiring additional access
to a filter or electronic air cleaner.
■ Horizontal installations of the downflow/horizontal model
desiring vent/flue (and combustion air intake) piping run
vertically from the side of the cabinet.
NOTE: Standard and alternate locations can be combined (for
example, an installation may use the standard combustion air
intake location, but use the alternate vent/flue location or vice
versa), if needed.
Alternate Vent/Flue Location—Upflow
The alternate vent/flue location is the large hole directly in line
with the induced draft blower outlet.
1. Remove and save the 4 screws securing the vent/flue
coupling to the furnace top panel.
2. Loosen the worm gear hose clamps on the rubber elbow and
detach the rubber elbow from both the induced draft blower
and the vent/flue pipe.
A. 90º PVC elbow (nondirect vent only) C. Rubber coupling with worm
gear hose clamps
B. Combustion air pipe (direct vent
only)
D. Vent/flue pipe
17
3. Remove the vent/flue pipe from the furnace.
4. Cut the vent/flue pipe 3³⁄₄" (9.5 cm) from the flanged end of
the pipe. See “Vent/Flue Pipe Cuts” illustration.
NOTE: The section of pipe attached to the coupling will reach
through the side panel to the induced draft blower.
Alternate Vent/Flue Location—Upflow
A
B
5. Discard remaining pipe and elbows.
C
D
E
Vent/Flue Pipe Cuts
A
B
C
A. Vent/flue pipe
B. Screw locations (4)
C. Plastic plug—alternate vent/flue location
D. Rubber elbow
E. Induced draft
blower
Alternate Vent/Flue Location—Counterflow/Upright
(Upflow Similar)
A. Flange
B. Cut location
C. 3³⁄₄" (9.5 cm)
6. Remove the plastic plug from the alternate vent/flue location.
7. Relocate and install the plastic plug in the standard vent/flue
location (top cover).
8. Insert the cut section of the vent/flue pipe and coupling into
the alternate vent/flue location.
9. Attach the vent/flue pipe and coupling to the induced draft
blower using a rubber coupling and worm gear hose clamps
provided in the drain kit bag.
10. Secure the coupling to the cabinet using the screws removed
in Step 1 or with field-supplied ³⁄₈" #8 self-drilling screws.
WARNING
The rubber elbow is not designed to support a load.
When theGoodman
rubber elbow57
is mounted externally to the
furnace cabinet, extreme care must be taken to adequately
support field-supplied vent/flue piping, as damage can
result in leaks causing bodily injury or death due to
exposure to flue gases, including carbon monoxide.
11. For upright installations, externally mount the rubber elbow to
the vent/flue coupling using a worm gear hose clamp.
12. Secure the field supplied vent/flue piping to the rubber elbow
using a worm gear hose clamp.
NOTE: Use of the alternate vent/flue location for upright
installations, requires the drain trap to be installed on the
same side of the furnace as the flue pipe.
13. For horizontal installations, externally secure the field
supplied vent/flue pipe directly to the vent/flue coupling using
a PVC or ABS coupling or elbow.
18
A
B
C
D
A. Plastic plug from drain kit bag
B. Vent/flue pipe
C. Rubber elbow
D. Induced draft blower
Alternate Vent/Flue Location—Counterflow
1. Remove and save the 4 screws securing the vent/flue
coupling to the furnace base pan.
2. Remove the 3 screws securing the furnace’s internal vent/flue
piping to the induced draft blower deck.
3. Loosen the worm gear hose clamps on the rubber elbow and
detach the rubber elbow from both the induced draft blower
and the vent/flue pipe.
4. Remove the vent/flue pipe from the furnace.
5. Cut the vent/flue pipe 3³⁄₄" (9.5 cm) from the induced draft
blower deck coupling. See “Vent/Flue Pipe Cuts” illustration.
6. Save the vent/flue pipe attached to the induced draft blower
deck coupling for use in the alternate location.
7. Discard remaining pipe and elbows.
Alternate Vent/Flue Location—Counterflow
Vent/Flue Pipe Cuts
A
A
B
B
C
C
D
E
F
A. Flange
B. Cut location
C. 3³⁄₄" (9.5 cm)
8. Remove the plastic plug from the alternate vent/flue location.
9. Relocate and install the plastic plug in the standard vent/flue
location (base pan).
10. Insert the plastic plug (included in the drain kit bag) into the
remaining hole in induced draft blower deck.
11. Insert the cut section of the vent/flue pipe and rubber
coupling into the alternate vent/flue location.
12. Attach the vent/flue pipe and coupling to the induced draft
blower using a rubber coupling and worm gear hose clamps
provided in the drain kit bag.
13. Secure the rubber coupling to the cabinet using the screws
removed in Step 1 or with field-supplied ³⁄₈" #8 self-drilling
screws.
WARNING
The rubber elbow is not designed to support a load.
When theGoodman
rubber elbow57
is mounted externally to the
furnace cabinet, extreme care must be taken to adequately
support field-supplied vent/flue piping, as damage can
result in leaks causing bodily injury or death due to
exposure to flue gases, including carbon monoxide.
14. For upright installations, externally mount the rubber elbow to
the vent/flue coupling using a worm gear hose clamp.
15. Secure the field supplied vent/flue piping to the rubber elbow
using a worm gear hose clamp.
NOTE: Use of the alternate vent/flue location for upright
installations, requires the drain trap to be installed on the
same side of the furnace as the flue pipe.
16. For horizontal installations, externally secure the field
supplied vent/flue pipe directly to the vent/flue coupling using
a PVC or ABS coupling or elbow.
A. Vent/flue pipe
B. Screw locations (4)
C. Screw locations (3)
D. Plastic plug—alternate vent/flue location
E. Rubber elbow
F. Induced draft blower
Alternate Vent/Flue Location—Upflow /Horizontal
(Counterflow Similar)
A
A. Rubber coupling
B. Vent/flue pipe
B
C
C. Induced draft blower
Alternate Combustion Air Intake Location—Counterflow
1. Remove and save the 4 screws securing the combustion air
intake coupling to the base pan.
2. Remove the 3 screws securing the furnace’s internal
combustion air intake pipe to the induced draft blower deck.
3. Remove the combustion air intake pipe from the furnace and
cut the pipe at the base pan coupling.
4. Save the base pan coupling and gasket from the induced
draft blower deck coupling for use in the alternate location.
Discard the remaining pipe.
5. Remove the plastic plug from the alternate combustion air
intake location.
6. Relocate and install the plastic plug in the standard air intake
location (base pan).
7. Insert the plastic plug (included in the drain kit bag) into the
remaining hole in the induced draft blower deck.
19
Alternate Combustion Air Intake Location—Counterflow
■
B
A
Vent/Flue Pipe Terminations
■
C
F
E
■
D
■
■
■
A. Section of pipe to be cut
B. Screw locations (4)
C. 2" (5.1 cm) minimum
D. Plastic plug—alternate combustion air
intake location
E. Screw locations (3)
F. Plastic plug from drain kit bag
8. With the gasket facing the cabinet side panel, and the
flange’s flat spot facing forward, secure the combustion air
intake coupling to the cabinet using the screws removed in
Step 1 or with field-supplied ³⁄₈" #8 self-drilling screws.
WARNING
The rubber elbow is not designed to support a load.
When theGoodman
rubber elbow57
is mounted externally to the
furnace cabinet, extreme care must be taken to adequately
support field-supplied vent/flue piping, as damage can
result in leaks causing bodily injury or death due to
exposure to flue gases, including carbon monoxide.
■
■
■
The vent/flue pipe may terminate vertically, as through a roof,
or horizontally, as through an outside wall.
The penetration of the vent through the roof must be sealed
tight with proper flashing such as is used with a plastic
plumbing vent.
A 2³⁄₈" (6.1 cm) diameter wall penetration is required for 2"
(5.1 cm) diameter pipe.
A 3" (7.6 cm) diameter hole is required for a 2¹⁄₂" (6.4 cm)
pipe.
A 3¹⁄₂" (8.9 cm) diameter hole is required for 3" (7.6 cm)
diameter pipe.
To secure the pipe passing through the wall and avoid
damage to the piping connections, a coupling should be
installed on either side of the wall and solvent cemented to a
length of pipe connecting the 2 couplings.
The length of pipe should be the wall thickness plus the
depth of the socket fittings to be installed on the inside and
outside of the wall.
The wall penetration should be sealed with silicone caulking
material.
In a basement installation, the vent/flue pipe can be run
between joist spaces.
NOTE: If the vent pipe must go below a joist and then up into
the last joist space to penetrate the header, two 45° elbows
should be used to reach the header rather than two 90°
elbows.
Vertical Vent Termination (Single Pipe)
A
9. For nondirect vent installations installed horizontally, a
minimum of one 90° elbow should be installed on the
combustion air intake coupling to guard against inadvertent
blockage.
NOTE: No elbow is required on the alternate combustion air
intake of upright installations, however, a minimum clearance
of 2" (5.1 cm) is required to assure proper air supply.
10. For direct vent installations, secure field-supplied combustion
air intake pipe directly to the air intake coupling.
NOTE: A PVC coupling or elbow is required on counterflow
furnaces.
B
A. Tee
B. 12" (30.5 cm) minimum to roof or
highest anticipated snow level
Nondirect Vent (Single Pipe) Piping
Nondirect vent installations require only a vent/flue pipe. The vent
pipe can be run horizontally with an exit through the side of the
building or run vertically with an exit through the roof of the
building. The vent can also be run through an existing unused
chimney; however, it must extend a minimum of 12" (30.5 cm)
above the top of the chimney. The space between the vent pipe
and the chimney must be closed with a weather-tight, corrosionresistant flashing. See “Vent Pipe Installation—Standard Furnace
Connections” or “Vent Pipe Installation—Alternate Furnace
Connections.”
Although nondirect vent installations do not require a combustion
air intake pipe, a minimum of one 90° elbow should be attached
to the furnace’s combustion air intake if an upright installation
uses the standard intake location, or a horizontal installation uses
the alternate air intake location. This elbow will guard against
inadvertent blockage of the air intake.
20
Alternate Vertical Vent Termination (Single Pipe)
A
B
A. 90º medium radius elbows
B. 12" (30.5 cm) minimum to roof or
highest anticipated snow level
Standard Horizontal Vent Termination (Single Pipe)
B
■
■
C
A
■
D
G
■
F
H
E
■
A. Inside building
B. Wall
C. Outside building
D. Tee or 90º elbow turned
down
E. 12" (30.5 cm) minimum to roof or
highest anticipated snow level
F. 12" (30.5 cm) minimum from wall
G. Coupling
H. Elbow or coupling
Standard Horizontal Vent Termination (Single Pipe)—
Above Highest Anticipated Snow Level
■
A 3" (7.6 cm) diameter hole is required for a 2¹⁄₂" (6.4 cm)
pipe.
A 3¹⁄₂" (8.9 cm) diameter hole is required for 3" (7.6 cm)
diameter pipe.
To secure the pipe passing through the wall and avoid
damage to piping connections, a coupling should be installed
on either side of the wall and solvent cemented to a pipe
connecting the 2 couplings.
The pipe length should be the wall thickness plus the depth
of the socket fittings to be installed on the inside and outside
of the wall.
The wall penetration should be sealed with silicone caulking
material.
In a basement installation, the pipes may be run between the
floor joist spaces.
NOTE: If the pipes must go below the floor joist and then up
into the last floor joist space to penetrate the header, two 45°
elbows should be used to reach the header rather than two
90° elbows.
Vertical Vent Terminations (Dual Pipe)
A
D
E
B
B
C
A
C
H
G
A. 12" (30.5 cm) minimum from wall
B. Tee or 90º elbow turned down
C. 12" (30.5 cm) minimum to roof or highest anticipated snow level
Direct Vent (Dual Pipe) Piping
The inlet air screens provided in the installation instruction packet
are available for the installer to use in the inlet of the combustion
air pipe to keep animals from building nests in the combustion air
pipe. Installation of screens, while strongly recommended, is not
required and will not affect performance of the furnace.
Direct vent installations require both a combustion air intake and
a vent/flue pipe. The pipes may be run horizontally and exit
through the side of the building or run vertically and exit through
the roof of the building. The pipes may be run through an existing
unused chimney; however, they must extend a minimum of 12"
(30.5 cm) above the top of the chimney. The space between the
pipes and the chimney must be closed with a weather tight,
corrosion resistant flashing. Both the combustion air intake and a
vent/flue pipe terminations must be in the same atmospheric
pressure zone. See “Vent/Flue and Combustion Air Pipe
Terminations,” “Concentric Vent Termination,” “Vent Pipe
Installation—Standard Furnace Connections” or “Vent Pipe
Installation—Alternate Furnace Connections.”
Vent/Flue and Combustion Air Pipe Terminations
■
■
■
The vent/flue and combustion air pipes may terminate
vertically, as through a roof, or horizontally, as through an
outside wall.
The penetrations through the roof must be sealed tight with
proper flashing such as is used with a plastic plumbing vent.
A 2³⁄₈" (6.1 cm) diameter wall penetration is required for 2"
(5.1 cm) diameter pipe.
F
A. 12" (30.5 cm) minimum
B. Combustion air intake
C. 90º medium radius elbows
D. Tee
E. Vent/flue pipe
F. 24" (61 cm) maximum, 3" (7.6 cm)
minimum
G. Screen
H. 12" (30.5 cm) minimum to roof or
highest anticipated snow level
Standard Horizontal Vent Terminations (Dual Pipe)
B
A
C
A
E
G
F
D
D
A. 24" (61 cm) maximum, 3"
D. 12" (30.5 cm) minimum to roof or
(7.6 cm) minimum
highest anticipated snow level
B. 12" (30.5 cm) minimum from E. Combustion air intake
wall
F. Screen
C. Tee or 90º elbow turned
G. 90º medium radius elbow
down
21
Alternate Horizontal Vent Terminations (Dual Pipe)
If more than one direct vent furnace is to be installed vertically
through a common roof top, maintain the same minimum
clearances between the exhaust vent and air intake terminations
of adjacent furnaces as with the exhaust vent and air intake
terminations of a single furnace.
If more than one direct vent furnace is to be installed horizontally
through a common side wall, maintain the clearances as shown
in “Horizontal Venting of Multiple Furnaces” illustration. Always
terminate all exhaust vent outlets at the same elevation and
always terminate all air intakes at the same elevation.
B
A
C
H
G
F
D
E
A. 90º medium radius elbow
B. Flue/vent pipe
C. 12" (30.5 cm) minimum
from wall
D. Screen
Vent/Intake Terminations for Installation of Multiple Direct
Vent Furnaces
Horizontal Venting of Multiple Furnaces
A
E. 12" (30.5 cm) minimum to roof or
highest anticipated snow level
F. Combustion air intake
G. 24" (61 cm) maximum, 3" (7.6 cm)
minimum
H. 24" (61 cm) maximum radius
B
B
F
C
GF
Standard Horizontal Terminations (Dual Pipe)—Above
Highest Anticipated Snow Level
D
H
E
C
B
A. 90º medium radius elbows D. 12" (30.5 cm) minimum to roof or
highest anticipated snow level
B. Flue/vent pipes
C. 12" (30.5 cm) minimum to E. Screens
roof or highest anticipated F. 24" (61 cm) maximum, 3" (7.6 cm)
snow level
minimum
G. 3" (7.6 cm) minimum
H. Combustion air intakes
D
A
H
F
E
E
G
Concentric Vent Termination
A
A. Support straps
B. 24" (61 cm) maximum, 3"
(7.6 cm) minimum
C. 12" (30.5 cm) minimum from wall
D. Tee or 90º elbow turned down
Refer to the directions provided with the Concentric Vent Kit
(DCVK) for installation specifications.
E. 12" (30.5 cm) minimum to roof or
highest anticipated snow level
F. Screen
G. 90º medium radius elbow
H. Combustion air intake
Alternate Horizontal Terminations (Dual Pipe)—Above
Highest Anticipated Snow Level
A
B
G
F
D
C
E
A. 90º medium radius elbow
B. Flue/vent pipe
C. 24" (61 cm) maximum, 3"
(7.6 cm)
22
D. Combustion air intake
E. 12" (30.5 cm) minimum to roof or
highest anticipated snow level
F. 24" (61 cm) maximum radius
G. Screen
Side Wall Vent Kit
This kit is to be used with 2" (5.1 cm) or 3" (7.6 cm) direct vent
systems. The vent kit must terminate outside the structure and
may be installed with the intake and exhaust pipes located sideby-side or with one pipe above the other.
NOTE: Do not use the Side Wall Vent Kit for single pipe
(nondirect vent) installations.
Refer to the directions furnished with the Side Wall Vent Kit (Part
Number 0170K00000S) for installation specifications
Connect Venting
1. Run venting to the furnace, see “Plan Vent System.”
2. Attach the air intake pipe to the furnace connector.
3. For nondirect vent installations only, install the inlet air
restrictor plate in the air inlet pipe. See Nondirect vents in
“Venting Requirements” for details.
4. Install the condensate drain assembly as shown.
5. Attach the flue pipe connector to the furnace.
6. Make sure all vent connections do not leak.
7. Check that the exhaust vent pipe terminates outside the
building.
8. After the condensate disposal system has been installed,
prime the trap system by slowly pouring 8 oz (250 mL) of
water into the drain trap.
Install Condensate Condensate Drain Lines and Drain Trap—Standard Vent/Flue Drain Hose Connections
A condensing gas furnace achieves its high level of efficiency by
extracting almost all of the heat from the products of combustion
and cooling them to the point where condensation takes place.
The condensate which is generated must be piped to an
appropriate drain location.
In upright installations, the furnace’s drain hoses may exit either
the right or left side of the furnace.
NOTE: If the alternate vent/flue outlet is utilized in an upright
installation, the drain trap and drain connections must be located
on the right.
In horizontal installations, the drain hoses will exit through the
bottom (down side) of the furnace with the drain trap suspended
beneath the furnace. The field-supplied drain system must be in
accordance with all local codes and the instructions in the
following sections.
NOTES:
■ The drain trap supplied with the furnace must be used.
■ The drain line between the furnace and drain location must
be constructed of ³⁄₄" (1.9 cm) PVC or CPVC.
■ The drain line between the furnace and drain location must
maintain a ¹⁄₄" (6.4 mm) per foot downward slope toward the
drain.
■ Do not trap the drain line in any other location than at the
drain trap supplied with the furnace.
■ Do not route the drain line outside where it may freeze.
■ If the drain line is routed through an area which may see
temperatures near or below freezing, use measures that will
keep the condensate from freezing within the drain line.
■ If an air conditioning coil is installed with the furnace, a
common drain may be used. An open tee must be installed in
the drain line near the cooling coil to relieve positive air
pressure from the coil’s plenum. This is necessary to avoid
any interference with the function of the furnace’s drain trap.
1. Remove the rubber plug from the front cover drain port (right
or left side, depending on the intended drain trap mounting).
2. Secure Hose A to the front cover drain port with a red hose
clamp.
3. Route Hose A to the rear side panel grommet hole.
NOTE: For left side drainage, the grommets will have to be
relocated to left side panel.
Upright Standard Connections—Right Side Upflow
(Counterflow Similar)
A
B
C
D
E
F G
H
L
A. Right side panel
B. Rubber elbow
C. Rubber elbow drain port
D. Red hose clamps
E. Tube 1
F. Hose B
J
I
G. Side panel grommet holes
H. Tubes 2
I. Drain trap
J. Green hose clamps (3)
K. Hose A
L. Front cover drain port
Upright Standard Connections—Left Side Upflow
(Counterflow Similar)
A
Upright Installations
L
In an upright installation, drain hoses are connected to drain
ports on the rubber elbow and the recuperator coil front cover.
The drain lines are then routed through the right or left side panel
and into the drain trap secured to the outside of the cabinet.
NOTE: For upright installations using an alternate vent/flue outlet,
see “Condensate Drain Lines and Drain Trap—Alternate Vent/
Flue Hose Connections.”
Standard Right or Left Side Drain Hose Connections
Upright installations using the standard vent/flue outlet require
the drain hoses to be connected as follows. The following
quantity of hoses, tubes, and hose clamps are provided with the
furnace.
Hose and Tube Identification
A
B
C
D
D K
E
A. Hose A
B. Hose B
C. Tube 2
D. Green hose clamps (3)
F
G
E. Red hose clamp (1)
F. Silver hose clamp (1)
G. Tube 1
B
C
D
E
F
D
K
J
I
H
G
A. Left side panel
B. Rubber elbow
C. Rubber elbow drain port
D. Red hose clamps
E. Tube 1
F. Green hose clamps (3)
G. Hose B
H. Drain trap
I. Tubes 2
J. Side panel drain holes
K. Hose A
L. Front cover drain port
4. Cut and remove ¹⁄₄" (6.4 cm) from the end of the drain port on
the rubber elbow.
5. Insert Tube 1 into the rubber elbow drain port and secure with
the red hose clamp. Angle Tube 1 outward toward the front of
the furnace.
6. For right side drains, cut 17³⁄₄" (45.1 cm) from the long end of
Hose B and discard.
7. Secure the remaining Hose B to Tube 1 with a green hose
clamp.
8. Route the other end of Hose B to the front right side panel
grommet hole.
23
9. For left side drains, cut 0" to 7" (17.8 cm) from the long end of
Hose B and discard. See the following chart.
10. Secure the remaining Hose B to Tube 1 with a green hose
clamp.
11. Route other end of Hose B to the front left side panel
grommet hole.
15. Ensure that the hoses and tubes maintain a downward slope
for proper drainage and are not kinked or binding.
Alternate Upright Upflow Connections—Right Side Only
(Counterflow Similar)
B
A
Cabinet Width
Models
(kBtu/Tons)
Length to Cut from Long
End of Hose B
17¹⁄₂" (44.5 cm)
45
7" (17.8 cm)
C
D
21" (53.4 cm)
70
3¹⁄₂" (8.89 cm)
E
24¹⁄₂" (62.3 cm)
90
0"
115
0"
12. Insert the short end of each Tube 2 through the side panel
grommet holes.
13. Secure the tubes to Hose A and Hose B with the green hose
clamps.
NOTE: Ensure hoses and tubes maintain a downward slope
for proper drainage and that they are not kinked or binding.
14. For instructions to mount the drain trap, see “Condensate
Drain Lines and Drain Trap—Upright Drain Trap Mounting.”
Install Condensate Condensate Drain Lines and
Drain Trap—Alternate Vent/Flue Drain Hose
Connections
Upright Installation —Right Side Only Drain Hoses
Upright installations using the alternate vent/flue outlet will
require right-side only drain hoses to be connected as follows.
See “Determine Vent Pipe Direction” for details on alternate vent/
flue pipe connection.
1. Remove the rubber plug from the right-side drain port on the
front cover. Save the rubber plug for later use.
2. Secure Hose A to the drain port on the front cover with a red
hose clamp.
3. Route Hose A to the right side panel grommet hole on the
rear panel.
4. Remove the grommet from the right-side panel drain hole on
the front panel.
5. Seal the hole in the grommet with the large end of the rubber
plug removed in Step 1.
6. Reinstall the grommet and rubber plug into the side panel
drain hole.
7. Cut ¹⁄₄" (6.4 cm) from the end of the drain port on the
externally mounted rubber elbow. Discard cut portion.
8. Insert Tube 1 into the rubber elbow drain port and secure with
a red hose clamp.
NOTE: Angle tube outward toward front of furnace.
9. Cut 17⁷⁄₈" (45.4 cm) from the long end of Hose B. Discard cut
portion.
10. Secure the remaining end of Hose B to the exposed end of
Tube 1 with a green hose clamp.
11. Route Hose B toward the right side panel grommet holes.
12. Insert the short end of one Tube 2 through the rear right side
panel grommet drain hole.
13. Secure Tube 1 to Hose A with a green hose clamp.
14. Insert the short end of the remaining Tube 2 into Hose B from
the rubber elbow and secure with green hose clamp.
24
F
G
H
D
K
J
A. Front cover drain port
B. Rubber elbow (externally mounted)
C. Rubber elbow drain port
D. Red hose clamps
E. Tube 1
F. Green hose clamps (3)
I
G. Hose B
H. Side panel grommet holes
I. Drain trap
J. Tubes 2
K. Hose A
Upright Drain Trap Mounting—Left or Right Side Panel
1. Insert the drain tubes into the drain trap and position the
drain trap against the side panel.
NOTE: Drain tubes must reach the bottom of the drain trap.
2. Secure the drain trap to the side panel at the mounting holes
(dimples or crosshairs on counterflow models) located below
the grommet drain holes.
3. Attach the PVC drain line to the drain trap outlet with either a
90° elbow or coupling.
Horizontal Installations—Right Side Down
Horizontal installations with the right side down require that the
drain hoses be connected to the right side front cover drain port
and the rubber elbow drain port.
NOTE: On counterflow models, relocation of the front cover
pressure switch hose is required.
1. Remove the rubber plug from the coil front cover drain port.
NOTE: On counterflow furnaces, relocate the front cover
pressure switch hose connection from the left side pressure
tap to the right (down) side tap to guard against blocked drain
conditions. Cut the hose to appropriate length to minimize
sagging. Plug the left (unused) pressure tap with the plug
removed from right side.
2. Secure Hose A to the front cover drain tap with a red hose
clamp.
3. Route Hose A to the rear right (down) side panel grommet
holes.
4. Cut ¹⁄₄" (6.4 cm) from the end of the drain port on the
externally mounted rubber elbow. Discard cut portion.
5. Insert Tube 1 into the rubber elbow drain port and secure with
a red hose clamp.
NOTE: Angle tube outward toward front of furnace.
6. Cut 17³⁄₄" (45.1 cm) from the long end of Hose B. Discard cut
portion.
7. Secure the remaining end of Hose B to exposed end of Tube
1 with a green hose clamp.
8. Route Hose B to the front right (down) side panel grommet
holes.
9. Cut 5¹⁄₂" (14 cm) straight length from the long end of each
Tube 2.
Alternate Horizontal Upflow Connections—Left Side Down
(Counterflow Similar)
A
Alternate Horizontal Upflow Connections—Right Side
Down (Counterflow Similar)
B
B
A
C
F
M
D
L
E
J
I
K
D
I
H
G C
DE
F
C
I HG F E
J
A. Front cover drain port
B. Front cover pressure tap
C. Right side panel
D. Rubber elbow
E. Rubber elbow drain port
F. Red hose clamps
G. Tube 1
H. Green hose clamps (3)
I. Side panel grommet holes
J. Drain trap
K. Tubes 2
L. Hose B
M. Hose A
10. Insert approximately 1" (2.5 cm) of each Tube 2 through the
right (down) side panel grommet holes.
11. Secure the tubes to Hose A and Hose B using the green hose
clamps.
12. Ensure that the hoses and tubes maintain a downward slope
for proper drainage and are not kinked or bound.
13. See “Upright Drain Trap Mounting—Left or Right Side Panel”
for mounting of the drain trap.
Horizontal Installations—Left Side Down
Horizontal installations with the left side panel down will require
the drain hoses to be connected to the left side front cover drain
port and the side drain port on the rubber elbow.
1. Remove the rubber plug from the coil front cover left (down)
side drain port.
2. Relocate the front cover pressure switch hose connection
from the right side (as shipped) pressure tap to the left (down)
side tap.
NOTE: The pressure switch hose must be connected to the
down side to guard against blocked drain conditions. Cut the
hose to the appropriate length to minimize sagging. Plug the
right (unused) pressure tap with the rubber plug removed
from left side.
3. Secure Hose A to the front cover drain port with a red hose
clamp.
4. Route Hose A to the rear left (down) side panel grommet
holes.
NOTE: For left side drainage, grommets must be relocated to the
left side panel.
A. Induced draft blower drain port
B. Hose B
C. Green hose clamps (3)
D. Side panel grommet holes
E. Tubes 2
F. Drain trap
G. Hose A
H. Red hose clamps
I. Front cover drain port
J. Left side panel
5. Remove the rubber cap from the side drain port on the rubber
elbow.
6. Secure the short end of Hose B to the rubber elbow side
drain port using a green hose clamp.
NOTES:
■
For left side drainage, route Hose B to the far left (down)
side panel grommet holes.
■
Horizontal left side connections (when using a new side
port drain elbow) does not require connecting a hose to
the induced draft blower housing.
7. Cut 5¹⁄₂" (14 cm) straight length from the long end of each
Tube 2.
8. Insert approximately 1" (2.5 cm) of each Tube 2 through the
left side panel grommet hole.
9. Secure the tubes to Hose A and Hose B with the green hose
clamps.
NOTE: Tube must reach bottom of trap.
10. Ensure that the hoses and tubes maintain a downward slope
for proper drainage and are not kinked or bound.
11. See “Upright Drain Trap Mounting—Left or Right Side Panel”
for mounting of the drain trap.
Horizontal Drain Trap Mounting—Left or Right Side
Panel
1. Position the drain trap against the side panel with the drain
tubes inserted into the trap.
NOTE: The trap may be orientated with the outlet facing
either the furnace’s top cover or base pan.
2. Secure the drain trap to the side panel at the dimples or
crosshairs located on either side of the grommet drain holes.
3. Confirm that the tubes reach the bottom of the drain trap and
that all of the hoses maintain a downward slope and are not
kinked or binding.
4. Attach the PVC drain line to the drain trap outlet with either a
90° elbow or coupling.
25
Install Ductwork
IMPORTANT:
■ Install ductwork in accordance with NFPA 90B and any local
codes.
■ When the furnace is installed so that the supply ducts carry
air circulated by the furnace to areas outside the space
containing the furnace, the return air shall be handled by a
duct or ducts sealed to the furnace casing and terminated
outsides the space containing the furnace.
■ If there is no complete return air duct system, the return air
connection must be sealed to the furnace casing and run full
size to a location outside the utility room or space housing
the furnace to avoid a negative pressure on the venting
system.
Installation with Return Ducts
A return air duct system is recommended. If the furnace is
installed in a confined space or closet, a return connection must
be run, full size, to a location outside the closet. The air duct in
the closet must be tight to avoid any entrance of air from the
closet into the circulating air.
Installation with an Evaporator Coil
IMPORTANT: When an air conditioning unit is used in
conjunction with the furnace, the evaporator coil must be
installed in the discharge (supply) air. Do not install an evaporator
coil in the return air; excessive condensation will occur within the
furnace.
When installing a WEC coil in a horizontal position with a
horizontal gas furnace, the open end of the A-coil must face the
supply air outlet of the furnace (blow into the open end of the Acoil). The A-coil should point away from the supply air outlet of
the furnace as shown.
A
B
A. Supply
B. Return
Installation without an Evaporator Coil
If a cooling coil is not installed with the furnace, then a removable
access panel should be provided in the supply plenum for
purposes of inspecting the heat exchanger. This opening must be
accessible when the furnace is installed. It must be large enough
that the heat exchanger can be viewed for possible openings
using light assistance or so that a probe can be inserted for
sampling the airstream. The cover for the opening must be leak
tight.
Filter Specifications
Filters are not supplied with these furnaces. It is the furnace
installer’s responsibility to install properly sized filters in
accordance with the Minimum Filter Requirements Chart.
■ Filters must comply with UL900 or CAN/ULCS111 Standards.
■ If the furnace is installed without filters, the warranty will be
voided.
■ Areas and dimensions shown for cleanable filters are based
on filters rated at 300 ft (91.4 m) per minute face velocity.
■ On upflow models, guide dimples show the location of the
side return cutout. Use a straight edge to scribe lines
connecting the guide dimples. Cut out the opening along
these lines
■ An undersized opening will cause reduced airflow.
Minimum Filter Requirements Chart
Cooling Airflow Requirement (CFM)—Permanent Minimum Filter Area (sq. in.) Based On 600 ft (182.9 m)
Per Minute Filter Face Velocity
Input Airflow
600
800
1,000
1,200
1,400
1,600
2,000
0453BXA
194*
194*
240
288
-
-
-
0703BXA
-
324*
324*
324*
336
-
-
0704CXA
-
-
291*
291*
336
384
-
0904CXA
-
-
432*
432*
432*
432*
-
0905DXA
-
-
-
388*
388*
388*
480
1155DXA
-
-
-
486*
486*
486*
486*
Cooling Airflow Requirement (CFM)—Disposable Minimum Filter Area (sq. in.) Based On 300 ft (91.4 m) Per
Minute Filter Face Velocity
0453BXA
388*
388*
480
576
-
-
-
0703BXA
-
647*
647*
647*
672
-
-
0704CXA
-
-
583*
583*
672
768
-
0904CXA
-
-
863*
863*
863*
863*
-
0905DXA
-
-
-
777*
777*
777*
960
1155DXA
-
-
-
971*
971*
971*
971*
*Minimum filter area dictated by heating airflow requirement.
26
Upright Installations
Make Electrical Connections
Depending on the installation and/or customer preference, filters
can be installed in the central return register or a side panel
external filter rack kit (upflows). As an alternative a media air filter
or electronic air cleaner can be used as the requested filter.
Filter Locations—Possible Upright Upflow
WARNING
Goodman 70
To avoid the risk of electrical shock, wiring to the unit
must be polarized and grounded.
C
A
WARNING
HIGH VOLTAGE!
B
Disconnect ALL power before servicing.
Goodman 6
Multiple power sources may be present.
Failure to do so may cause property damage,
personal injury or death.
B
WARNING
D
A. Central return grille
B. Filter
C. Airflow
D. Side return external filter rack kit
(either side)
Goodman 56
Edges of sheet metal holes may be sharp. Use gloves as
a precaution when removing hole plugs.
Filter Locations—Possible Upright Counterflow
A
B
B
CAUTION
Label all wires prior to Goodman
disconnection
59 when servicing
controls. Wiring errors can cause improper and dangerous
operation. Verify proper operation after servicing.
Thermostat
F
B
C
E
NOTE: Wire routing must not interfere with circulator blower
operation, filter removal, or routine maintenance.
Low voltage connections can be made through either the righthand or left-hand side panel. Thermostat wiring entrance holes
are located in the lower compartment. Refer to “Thermostat
Diagram” for thermostat connections to the integrated control
module terminal strip.
Thermostat Diagram
B
B
Y
A
W
R
W
R
G
C
D
A. Filter access door
B. Filter
C. Central return grille
D. Airflow
E. Filter support bracket (provided)
F. Return duct
Horizontal Installations
Filters must be installed in either the central return register or in
the return air ductwork.
A. Heating room thermostat
B. Furnace
Y
C
Y
G
W
R
W
R
G
D
Y
C
C
C. Heating and cooling room thermostat
D. Remote condensing unit
This furnace is equipped with a 40 VA transformer to facilitate use
with most cooling equipment. Consult the wiring diagram located
on the blower compartment door for further details of 115-volt
and 24-volt wiring.
1. Disconnect power.
2. Remove the screw from the furnace electrical connection
box.
27
3. Remove the cover from the furnace electrical connection box.
4. Route the field supply wires to the furnace electrical
connection box.
5. Using UL listed wire connectors, connect the field supply
wires to the furnace (black to black and white to white).
Make Gas Connections
The furnace rating plate includes the approved furnace gas input
rating and gas types. The furnace must be equipped to operate
on the type of gas applied. This includes any conversion kits
required for alternate fuels and/or high altitude.
CAUTION
To prevent unreliable operation or equipment damage,
Goodman
61
the inlet gas supply pressure
must be
as specified on the
unit rating plate with all other household gas-fired
appliances operating.
WARNING
Goodman
63or fire, never use a
To avoid the possibility
of explosion
match or open flame to test for leaks.
Inlet gas supply pressures must be maintained within the ranges
specified in the Inlet Gas Supply Pressure chart. The supply
pressure must be constant and available with all other household
gas-fired appliances operating. The minimum gas supply
pressure must be maintained to avoid unreliable ignition. The
maximum must not be exceeded to keep the furnace from
overfiring.
WARNING
HIGH
VOLTAGE!
Goodman
60
To avoid the risk of injury, electrical shock
or death, the furnace must be electrically
grounded in accordance with local codes or
in their absence, with the latest edition of the
National Electric Code (NEC).
Inlet Gas Supply Pressure
6. Connect ground wire to green ground screw.
Natural gas
5.0" W.C. minimum; 10.0" W.C. maximum
Propane gas
11.0" W.C. minimum; 13.0" W.C. maximum
Propane Gas Conversion
A
WARNING
Goodman
52injury or death may
Possible property damage,
personal
occur if the correct conversion kits are not installed. The
appropriate kits must be applied to insure safe and proper
furnace operation. All conversions must be performed by
a qualified installer or service agency.
B
A. Connect white to white and black to black
B. Green ground screw
7. Replace the furnace electrical connection box cover and
screw.
This furnace is configured for Natural gas. The appropriate
manufacturer’s propane gas conversion kit, must be applied for
propane gas installations. See “Propane Gas/High Altitude
Installations” in “Location Requirements.”
Gas Control Valve
Junction Box Relocation
*
*
*
*
*
*
*
A
A. Standard junction box location
B. Alternate junction box location
28
B
This furnace is equipped with a 24-volt gas control valve
controlled during the furnace operation by the integrated control
module. As shipped, the gas control valve is configured for
Natural gas. The gas control valve is field convertible for use with
propane gas by replacing the regulator spring with a propane gas
spring from an appropriate manufacturer’s propane gas
conversion kit. Taps for measuring the gas supply pressure and
manifold pressure are provided on the valve.
The gas control valve has a manual ON/OFF control located on
the gas control valve itself. This control may be set only to the
“ON” or “OFF” position.
Refer to the lighting instructions label or or see “Complete
Installation” for use of this control during start-up and shut down
periods.
When connecting gas piping:
Gas Piping Connections
WARNING
Goodman
Edges of sheet metal
holes may be56
sharp. Use gloves as
WARNING
Goodman
52injury or death may
Possible property damage,
personal
occur if the correct conversion kits are not installed. The
appropriate kits must be applied to insure safe and proper
furnace operation. All conversions must be performed by
a qualified installer or service agency.
When sizing a trunk line, be sure to include all appliances which
will operate simultaneously when sizing a trunk line. The gas
piping supplying the furnace must be properly sized based on the
gas flow required, specific gravity of the gas, and length of the
run. The gas line installation must comply with local codes, or in
their absence, with the latest edition of the National Fuel Gas
Code, NFPA 54/ANSI Z223.1.
Natural Gas Capacity of Pipe—In cu ft (m3) of Gas Per Hour
(CFH)
Length
of
Pipe—
ft (m)
Nominal Black Pipe Size—inches
10 (3)
132 (3.7) 278 (7.9) 520 (14.7) 1,050 (29.7) 1,600 (45.3)
20 (6.1)
92 (2.6)
190 (5.4) 350 (9.9) 730 (20.7)
1,100 (31.1)
30 (9.2)
73 (2.1)
152 (4.3) 285 (8.1) 590 (16.7)
980 (27.8)
40 (12.2) 63 (1.8)
130 (3.7) 245 (6.9) 500 (14.2)
760 (21.5)
50 (15.2) 56 (1.6)
115 (3.3) 215 (6.1) 440 (12.5)
670 (19)
¹⁄₂
³⁄₄
1
1¹⁄₄
a precaution when removing hole plugs.
■
■
■
■
■
■
■
■
1¹⁄₂
60 (18.3) 50 (15.2) 105 (3)
195 (5.5) 400 (11.3)
610 (17.3)
70 (21.3) 46 (1.3)
96 (2.7)
180 (5.1) 370 (10.5)
560 (15.9)
80 (24.4) 43 (1.2)
90 (2.5)
170 (4.8) 350 (9.9)
530 (15)
90 (27.4) 40 (1.1)
84 (2.4)
160 (4.5) 320 (9.1)
490 (13.9)
100 (30.5) 38 (1.1)
79 (2.2)
150 (4.2) 305 (8.6)
460 (13)
■
Maximum torque for the gas control valve connection is
375 in/lbs.
NOTE: Do not overtighten the gas control valve.
■
Install a manual shutoff valve between the gas meter and the
furnace within 6 ft (1.8 m) of the furnace.
If a union is installed, the union must be downstream of the
manual shutoff valve, between the shutoff valve and the
furnace.
Tighten all joints securely.
Connect the furnace to the building piping by one of the
following methods:
1. Rigid metallic pipe and fittings.
2. Semirigid metallic tubing and metallic fittings.
NOTE: Aluminum alloy tubing must not be used in exterior
locations. In order to seal the grommet cabinet penetration,
rigid pipe must be used to reach the outside of the cabinet. A
semirigid connector to the gas piping may be used from
there.
■
■
Pressure 0.5 psig or less and pressure drop of 0.3" W.C.; Based
on 0.60 Specific Gravity Gas
Btu/h Furnace Input
Heating Value of Gas (Btu/cu. ft
To connect the furnace to the building’s gas piping, the installer
must supply a ground joint union, drip leg, manual shutoff valve
and line and fittings to connect to the gas control valve. In some
cases, the installer may also need to supply a transition piece
from ¹⁄₂" (1.3 cm) pipe to a larger pipe size.
See “Gas Piping Connections” illustrations for typical gas line
connections to the furnace.
Use pipe joint compound (pipe dope) on male threads only.
Always use pipe joint compound (pipe dope) that is approved
for all gases.
Do not apply compound to the first 2 threads.
Use ground joint unions.
Install a drip leg to trap dirt and moisture before it can enter
the gas control valve. The drip leg must be a minimum of 3"
(7.6 cm) long.
Install a ¹⁄₈" NPT pipe plug fitting, accessible for test gage
connection, immediately upstream of the gas supply
connection to the furnace.
Always use a backup wrench when making the connection to
the gas control valve to keep it from turning.
NOTE: The orientation of the gas control valve on the
manifold must be maintained as shipped from the factory.
■
■
CFH =
Use black iron or steel pipe and fittings for building piping.
Where possible, use new pipe that is properly chamfered,
reamed and free of burrs and chips.
NOTE: If old pipe is used, be sure it is clean and free of rust,
scale, burrs, chips and old pipe joint compound.
■
■
■
■
Use listed gas appliance connectors in accordance with their
instructions.
Gas connectors must be fully in the same room as the
furnace.
Keep gas connectors and semirigid tubing away from
physical and thermal damage when installed.
Ensure aluminum alloy tubing and connectors are coated to
avoid external corrosion when in contact with masonry,
plaster or insulation, or subjected to repeated wetting by
liquids such as water (except rainwater), detergents, or
sewage.
29
Gas Piping Connections—Upflow
B
C
Gas Piping Connections—Horizontal Upflow
D
C
E
D
A
A
B
E
J
F
I
J
H G
I
H
A. Alternate gas line location
B. Manifold
C. Gas control valve
D. Burners
E. Manual shutoff valve (upstream
from ground joint pipe union
F. Height required by local codes
G. Drip leg
H. Grommet in standard gas line
hole
I. Ground joint pipe union
J. Plug in alternate gas line hole
Gas Piping Connections—Counterflow
G
A. Gas control valve
B. Ground joint pipe union
C. Manual shutoff valve (upstream
from ground joint pipe union
D. Drip leg
E. Grommet in standard gas line hole
F
F. Drain trap
G. Plug in alternate gas line hole
H. Alternate gas line location
I. Manifold
J. Burners
Gas Piping Connections—Horizontal Counterflow
C
A
B
D
A
B
E
J
I
C
J
H
G
F
A. Manual shutoff valve (upstream
from ground joint pipe union
B. Alternate gas line location
C. Plug in alternate gas line hole
D. Gas control valve
E. Manifold
30
D
E
F. Burners
G. Ground joint pipe union
H. Grommet in standard gas line
hole
I. Drip leg
J. Height required by local codes
I
F
H
G
A. Gas control valve
B. Ground joint pipe union
C. Manual shutoff valve (upstream
from ground joint pipe union
D. Drip leg
E. Grommet in standard gas line hole
F. Drain trap
G. Plug in alternate gas line hole
H. Alternate gas line location
I. Manifold
J. Burners
Direct/Standard Inlet Piping
When gas piping enters directly to the gas control valve through
the standard inlet hole, the installer must supply straight pipe
with a ground joint union to reach the exterior of the furnace. The
rigid pipe must be long enough to reach the outside of the
cabinet to seal the grommet cabinet penetration. A semirigid
connector to the gas piping can be used outside the cabinet per
local codes.
Indirect/Alternate Inlet Piping
When gas piping enters indirectly to the gas control valve through
the alternate gas inlet hole, the following fittings (starting from the
gas control valve) must be supplied to reach the outside of the
cabinet:
■ Coupling
■ 90º elbow
■ 2" close nipple
■ 90º elbow
■ Straight pipe with a ground joint union to reach the exterior of
the furnace.
NOTE: The rigid pipe must be long enough to reach the
outside of the cabinet so as to seal the grommet cabinet
penetration. A semirigid connector to the gas piping can be
used outside the cabinet per local codes.
Gas Piping Checks
Before placing the furnace in operation, leak test the furnace and
gas connections.
Check for leaks using an approved chloride-free soap and water
solution, an electronic combustible gas detector, or other
approved testing methods.
NOTE: Do not exceed specified pressures for testing. Higher
pressure may damage the gas control valve and cause
subsequent overfiring, resulting in heat exchanger failure. Isolate
this furnace from the gas supply piping system by closing the
external manual gas shutoff valve before pressure testing supply
piping system with test pressures equal to or less than ¹⁄₂ psig
(3.48 kPa).
Propane Gas Tanks and Piping
WARNING
If the gas furnace is installed in a basement, and
Goodman
excavated area or a confined space,
it is 64
strongly
recommended to contact a propane supplier to install a
gas detecting warning device in case of a gas leak.
— Since propane gas is heavier than air, any leaking can
settle in low areas or confined spaces.
— Propane gas odorant may fade, making the gas
undetectable except with a warning device.
A gas detecting warning system is the only reliable way to detect
a propane gas leak. Rust can reduce the level of odorant in
propane gas. Do not rely on your sense of smell. Contact a local
propane gas supplier about installing a gas detecting warning
system.
All propane gas equipment must conform to the safety standards
of the National Board of Fire Underwriters, NBFU Manual 58. For
satisfactory operation, propane gas pressure must be 11" W.C. at
the furnace manifold with all gas appliances in operation.
Maintaining proper gas pressure depends on three main factors:
■ Vaporization rate, depending on temperature of the liquid and
“wetted surface” area of the container or containers.
■ Proper pressure regulation. Two-stage regulation is
recommended for both cost and efficiency.
■ Pressure drop in the lines between the regulators, and
between 2nd stage regulator and the appliance. Pipe size will
depend on the length of the pipe run and the total load of all
appliances.
Complete information regarding tank sizing for vaporization,
recommended regulator settings, and pipe sizing is available
from most regulator manufacturers and propane gas suppliers.
Since propane gas will quickly dissolve white lead and most
standard commercial compounds, special pipe dope must be
used. Shellac-based compounds resistant to the actions of
liquefied petroleum gases are satisfactory.
Propane Gas Installation—Typical
A
B
C
A. 1st stage regulator
B. 5 to 15 psig (20 psig maximum)
D
C. 2nd stage regulator
D. Continuous 11" W.C.
31
Sizing Between 1st and 2nd Stage Regulator*
Maximum propane capacities listed are based on 2 psig pressure drop at 10 psig setting. Capacities in 1,000 Btu/h.
Propane Gas Piping Chart I
Tubing Size, O.D. Type L
Nominal Pipe Size Schedule 40
Pipe or Tubing Length—ft (m) ³⁄₈
¹⁄₂
⁵⁄₈
³⁄₄
⁷⁄₈
¹⁄₂
³⁄₄
10 (3)
730
1,700
3,200
5,300
8,300
3,200
7,500
20 (6.1)
500
1,100
2,200
3,700
5,800
2,200
4,200
30 (9.2)
400
920
2,000
2,900
4,700
1,800
4,000
40 (12.2)
370
850
1,700
2,700
4,100
1,600
3,700
50 (15.2)
330
770
1,500
2,400
3,700
1,500
3,400
60 (18.3)
300
700
1,300
2,200
3,300
1,300
3,100
80 (24.4)
260
610
1,200
1,900
2,900
1,200
2,600
100 (30.5)
220
540
1,000
1,700
2,600
1,000
2,300
125 (38.1)
200
490
900
1,400
2,300
900
2,100
150 (45.7)
190
430
830
1,300
2,100
830
1,900
175 (53.3)
170
400
780
1,200
1,900
770
1,700
200 (61)
160
380
730
1,100
1,800
720
1,500
To convert to capacities at 15 psig settings—multiply by 1.13. To convert to capacities at 5 psig settings—multiply by 0.879.
Sizing Between Single or 2nd Stage Regulator and Appliance*
Maximum Propane Capacities Listed are Based on ¹⁄₂" W.C. pressure drop at 11" W.C. setting. Capacities in 1,000 Btu/h.
Propane Gas Piping Chart II
Tubing Size, O.D. Type L
Nominal Pipe Size Schedule 40
Pipe or Tubing Length—ft (m) ³⁄₈
¹⁄₂
⁵⁄₈
³⁄₄
⁷⁄₈
1¹⁄₈
¹⁄₂
³⁄₄
1
1¹⁄₄
1¹⁄₂
10 (3)
39
92
199
329
501
935
275
567
1,071
2,205
3,307
20 (6.1)
26
62
131
216
346
630
189
393
732
1,496
2,299
30 (9.2)
21
50
107
181
277
500
152
315
590
1,212
1,858
40 (12.2)
19
41
90
145
233
427
129
267
504
1,039
1,559
50 (15.2)
18
37
79
131
198
376
114
237
448
913
1,417
60 (18.3)
16
35
72
121
187
340
103
217
409
834
1,275
80 (24.4)
13
29
62
104
155
289
89
185
346
724
1,066
100 (30.5)
11
26
55
90
138
255
78
162
307
630
976
125 (38.1)
10
24
48
81
122
224
69
146
275
567
866
150 (45.7)
9
21
43
72
109
202
63
132
252
511
787
200 (61)
8
19
39
66
100
187
54
112
209
439
665
250 (76.2)
8
17
36
60
93
172
48
100
185
390
590
Data in accordance with NFPA pamphlet Number 54.
32
Check the Furnace Input Rate (if required)
CAUTION
To prevent unreliable operation or equipment damage,
Goodman 61
the inlet gas supply pressure must be as specified on the
■
unit rating plate with all other household gas-fired
appliances operating.
(12.45 cm) W.C. (1st stage) and 10.0" (25.4 cm) W.C.
(2nd stage) for propane gas.
For Natural gas, check the furnace rate by observing the gas
meter, making sure all other gas appliances are turned off.
The test hand on the meter should be timed for at least one
revolution.
Btu/h
Input
IMPORTANT:
■ The furnace input rate must not exceed the input rating on
the furnace rating plate.
■ This furnace is equipped for rated input at manifold pressures
of 1.7" (4.32 cm) W.C. (1st stage) and 3.5" (8.89 cm) W.C.
(2nd stage) for Natural gas. When an LP conversion kit is used,
it is equipped for rated input at manifold pressures of 4.9"
=
Cu. ft per Revolution
x 3600 x Heating
Value
# Seconds per Revolution
At altitudes from 2,000 to 7,500 ft (609.6 m to 2,286 m) the
furnace input rate must not exceed that on the rating plate.
NOTE: The actual heating value of your gas can be obtained from
your local utility company. Typical values are shown in the
Manifold Pressure vs. Altitude Chart in “Adjust the Furnace Input
Rate.”
■
Adjust the Furnace Input Rate (if required)
CAUTION
To prevent unreliable operation or equipment damage,
Goodman
the gas manifold
pressure must65
be as specified on the
unit rating plate. Only minor adjustments should be made
by adjusting the gas control valve pressure regulator.
For Altitudes 4,500 to 7,500 ft (1,371.6 m to 2,286 m)
Above Sea Level
Gas Control Valve
B
A
C
D
E
F
K
L
A. Open to atmosphere
B. Manometer hose
C. Outlet pressure boss
D. High-fire regulator
adjust
J
E. Regulator vent
F. Low-fire regulator
adjust
G. Coaxial coil terminal (M)
H. Common terminal (C)
I HG
I. High-fire coil
terminal (HI)
J. ON/OFF switch
K. Inlet pressure boss
L. Manometer
Only small variations in gas pressure should be made by
adjusting the gas control valve pressure regulator. The manifold
pressure must be measured with the burners operating. To
measure and adjust the manifold pressure, use the following
procedure.
1. Turn off the gas to the furnace at the manual gas shutoff valve
external to the furnace.
2. Turn off all electrical power to the system.
3. Loosen the outlet pressure test screw (inlet/outlet pressure
boss) one turn (counterclockwise, not more than one turn).
4. Attach a hose and manometer to the outlet pressure boss of
the valve.
5. Turn on the gas supply.
6. Turn on the power and energize the main (M) solenoid.
NOTE: Do not energize the (HI) solenoid.
7. Measure the gas manifold pressure with the burners firing.
8. Adjust the manifold pressure using the following Manifold
Gas Pressure table.
9. Remove the regulator cover screw from the low (LO) outlet
pressure regulator adjust tower and turn the screw clockwise
to increase pressure, or counterclockwise to decrease
pressure.
10. Energize the main (M) solenoid as well as the (HI) terminal.
11. Remove the regulator cover screw from the (HI) outlet
pressure regulator adjust tower and turn the screw clockwise
to increase pressure, or counterclockwise to decrease
pressure.
12. Turn off all electrical power and gas supply to the system.
13. Remove the manometer hose from the outlet pressure boss.
14. Tighten the outlet pressure test screw to seal pressure port
(clockwise, 7 in-lb minimum).
15. Turn on the electrical power and gas supply to the system.
16. Turn on the system power and energize the gas control valve.
17. Using a leak detection solution or soap suds, check for leaks
at the pressure boss screw. Bubbles forming indicate a leak.
IMPORTANT: If a leak is found, turn off gas and fix all leaks
immediately.
NOTE: For gas-to-gas conversion, consult your dealer for the
appropriate conversion.
Manifold Gas Pressure
Gas
Rate
Range
Nominal
Natural
Low Stage
1.7" to 2.3" W.C.
2.0" W.C.
High Stage
3.2" to 3.8" W.C.
3.5" W.C.
Low Stage
5.7" to 6.3" W.C.
6.0" W.C.
High Stage
9.7" to 10.3" W.C. 10.0" W.C.
Propane
33
Complete Installation
IMPORTANT: Do not use this furnace if any part has been under
water. Immediately call a qualified person to inspect the furnace
and to replace any part of the control system and gas control
which has been under water.
1. Check that you have all of your tools.
2. Dispose of/recycle all packaging materials.
3. Check the furnace in its final location. Be sure the vent is not
blocked.
Start-up Procedure and Adjustment
This furnace must have a 115 VAC power supply properly
connected and grounded. Proper polarity must be maintained for
correct operation. See “Operational Checks.”
Heat Anticipator Setting
10. Turn on the electrical power to the furnace.
11. Adjust the thermostat to a setting above room temperature.
12. After the burners are lit, set the thermostat to the desired
temperature.
Measure Temperature Rise
1. Adjust room thermostat to the highest temperature setting
possible.
2. After 20 minutes of heating operation, measure the furnace
temperature rise. Take air temperature readings in both the
return air ducts and the heated air ducts (about 72" [1.8 m]
from the furnace where they will not be affected by radiant
heat) as shown.
NOTE: If more than one run of return or heated air ducts are
used, air temperature measurements should be taken in each
duct. These measurements can be converted to an average
to obtain the temperature rise of the whole system.
The heat anticipator in the room thermostat must be correctly
adjusted to obtain the proper number of cycles per hour and to
avoid “overshooting” of the setting. Set the heat anticipator
setting to 0.7 amps. Follow the thermostat manufacturer’s
instructions on how to adjust the heat anticipator setting.
B
C
A
Drain Trap Priming
The drain trap must be primed prior to the furnace start-up. To
prime, fill the drain trap with water. This ensures proper furnace
drainage upon start-up and avoids the possibility of flue gases
escaping through the drain system.
Furnace Operation
1. Purge the gas lines of air prior to start-up.
NOTE: Be sure not purge lines into an enclosed burner
compartment.
2. Check for leaks using an approved chloride-free soap and
water solution, an electronic combustible gas detector or
other approved method.
3. Verify that all required kits (propane gas, high altitude, etc.)
have been appropriately installed.
D
A. Measure return air here.
B. Warm air
3. If furnace doesn't maintain temperature rise within the range
shown on the furnace rating plate, adjust the blower speed.
Final Checklist
■
Furnace Start-up
1. Close the manual gas shutoff valve external to the furnace.
2. Turn off the electrical power to the furnace.
3. Set the room thermostat to the lowest possible setting.
4. Remove the burner compartment door.
NOTE: This furnace is equipped with an ignition device which
automatically lights the burner. Do not try to light the burner by
hand.
5. Move the furnace gas control valve manual control to the OFF
position.
6. Wait 5 minutes, and then check for a gas odor.
NOTE: Check near the floor as some types of gas are heavier
than air.
7. After 5 minutes, move the furnace gas control valve manual
control to the ON position.
8. Replace the burner compartment door.
9. Open the manual gas shutoff valve external to the furnace.
34
C. Measure supply temperature here.
D. Return air
■
■
Cycle the furnace with the thermostat at least 3 times. Verify
cooling and fan only operation.
Review the owner’s manual with the homeowner and discuss
proper furnace operation and maintenance.
Leave literature packet near furnace.
Furnace Shut Down
1. Set the thermostat to the lowest setting.
The integrated control will close the gas control valve and
extinguish the flame. Following a 15-second delay, the
induced draft blower will be de-energized. After a 120-, 150-,
180- or 210-second delay period (field-selectable delay OFF
[90, 120, 150, 180] plus a 30-second ramp down), the
circulator blower deenergizes.
2. Remove the burner compartment door and move the furnace
gas control valve manual control to the OFF position.
3. Close the manual gas shutoff valve external to the furnace.
4. Replace the burner compartment door.
SEQUENCE OF OPERATION
■
Power Up
The normal power up sequence is as follows:
■ 115 VAC power applied to furnace.
■ Integrated control module performs internal checks.
■ Integrated control module LED will light.
■ Integrated control module monitors safety circuits
continuously.
■ Furnace awaits call from thermostat.
■
■
■
■
Heating Mode—Mode DIP Switch Set to
1 STG Position
The normal operational sequence in heating mode is as follows:
■ R and W thermostat contacts close, initiating a call for heat.
■ Integrated control module performs safety circuit checks.
■ Induced draft blower is energized for a 15-second prepurge
period causing the pressure switch contacts to close.
■ Igniter warm up begins after 15-second prepurge expires.
■ Low-stage and high-stage gas control valves open at the end
of the igniter warm up period, delivering gas to the burners
and establishing flame.
■ Integrated control module monitors flame presence. Gas
control valve will remain open only if flame is detected.
■ Circulator blower is energized on high heat speed following a
fixed 30-second blower on delay. Electronic air cleaner
terminals are energized with circulator blower.
■ Furnace operates; integrated control module monitors safety
circuits continuously.
■ R and W thermostat contacts open, completing the call for
heat.
■ Gas control valve closes, extinguishing flame.
■ Induced draft blower is de-energized following a 15-second
post purge.
■ The circulator blower remains at high heat speed for
30 seconds. The circulator blower then switches to low heat
speed for the remainder of the selected heat off delay period.
For example, the selected heat off delay period is
150 seconds. The circulator blower operates at high heat for
30 seconds and at low speed for 150 - 30 = 120 seconds.
■ Circulator blower and electronic air cleaner terminals are deenergized.
■ Circulator blower ramps down to OFF during the 30 seconds
following the heat off delay period.
■ Furnace awaits next call from thermostat.
Heating Mode—Mode DIP Switch Set to
2 STG Position
The normal operational sequence in heating mode is as follows:
■ R and W thermostat contacts close, initiating a call for heat.
■ Integrated control module performs safety circuit checks.
■ Induced draft blower is energized for a 15-second prepurge
period causing the pressure switch contacts to close.
■ Igniter warm up begins after 15-second prepurge expires.
■
■
■
■
■
■
■
Low-stage and high-stage gas control valves open at the end
of the igniter warm up period, delivering gas to the burners
and establishing flame.
High-stage gas control valve closes after 5 seconds;
low-stage gas control valve remains open.
Integrated control module monitors flame presence. Gas
control valve will remain open only if flame is detected.
Circulator blower is energized on low-heat speed following a
fixed 30-second blower on delay. Electronic air cleaner
terminals are energized with circulator blower.
Furnace is now operating in low-stage heating mode.
Furnace operates; integrated control module monitors safety
circuits continuously.
If low-stage delay period expires, control will shift operation
from low-stage heating mode operation to high-stage heating
mode operation. Control will energize circulator blower
high-heat speed and high-stage gas control valve.
Furnace is now operating in high-stage heating mode.
R and W thermostat contacts open, completing the call for
heat.
Induced draft blower is de-energized following a 15-second
post purge.
Circulator blower is de-energized following a heat off delay
period (selectable 100 to 150 seconds; factory-set at
150 seconds).
If the furnace is operating in the low-stage heating mode
when thermostat contacts open, circulator remains at
low-heat speed for the selected delay off period. If the
furnace is operating in high-stage heating mode when the
thermostat contacts open, the circulator blower remains at
high-heat speed for 30 seconds. The circulator blower then
switches to low-heat speed for the remainder of the
selected heat off delay period. For example, the selected
heat off delay period is 150 seconds. The circulator blower
operates at high heat for 30 seconds and at low speed for
150 - 30 = 120 seconds.
Furnace awaits the next call from thermostat.
Cooling Mode
The normal operational sequence in cooling mode is as follows:
■ R and Y thermostat contacts close, initiating a call for cool.
■ Integrated control module performs safety circuit checks.
■ Outdoor fan and compressor are energized.
■ Circulator blower is energized on cool speed following a fixed
5-second on delay. Electronic air cleaner terminals are
energized with circulator blower.
■ Furnace circulator blower and outdoor cooling unit run;
integrated control module monitors safety circuits
continuously.
■ R and Y thermostat contacts open, completing the call for
cool.
■ Outdoor fan and compressor are de-energized.
■ Circulator blower is de-energized following a fixed 45-second
cool off delay period. Electronic air cleaner terminals are
de-energized.
■ Furnace awaits the next call from thermostat.
35
■
Fan Only Mode
The normal operational sequence in fan only mode is as follows:
■ R and G thermostat contacts close, initiating a call for fan.
■ Integrated control module performs safety circuit checks.
■ Circulator blower is energized on low-heat speed. Electronic
air cleaner terminals are energized.
■
■
■
Circulator blower runs; integrated control module monitors
safety circuits continuously.
R and G thermostat contacts open, completing the call for
fan.
Circulator blower is de-energized. Electronic air cleaner
terminals are de-energized.
Furnace awaits the next call from thermostat.
CIRCUIT/SWITCH DESCRIPTIONS
A number of circuits are employed to ensure proper furnace operation. These circuits serve to control any potential hazards and serve
as inputs in the monitoring and diagnosis of abnormal function. These circuits are continuously monitored during furnace operation by
the integrated control module.
Integrated Control Module
Circulator Blower Speeds
The integrated control module is an electronic device which, if a
potential concern is detected, will take the necessary precautions
and provide diagnostic information through an LED.
This furnace is equipped with a multispeed circulator blower. This
blower provides ease in adjusting blower speeds. The
Specification Sheet applicable to your model provides an airflow
table, showing the relationship between airflow (CFM) and
external static pressure (E.S.P.), for the proper selection of
heating and cooling speeds.
The cooling blower speed is shipped set on HIGH, and the
heating blower speed is set as indicated in the Specification
Sheet applicable to your model. These blower speeds should be
adjusted by the installer to match the installation requirements so
as to provide the correct heating temperature rise and correct
cooling CFM.
To adjust the circulator blower speed, proceed as follows:
1. Turn off power to the furnace.
2. Select the heating and cooling blower speeds that match the
installation requirements from the airflow table in the
Specification Sheet.
3. Relocate the desired motor leads to the circulator blower heat
and cool speed terminals on the integrated control module.
(Terminals are identified as LO HEAT-H, HI HEAT-H and
COOL-H [hot]). If a heating speed and the cooling blower
speed are the same, a jumper wire must be used between the
heat and cool terminals.
4. Connect all unused blower motor leads to the “PARK”
terminals on the integrated control module. Any leads not
connected to the “PARK” terminals must be taped.
5. Turn on power to furnace.
6. Verify the proper temperature rise as outlined in “Measure
Temperature Rise” in “Complete Installation.”
Primary Limit Switch
The primary limit switch is located on the partition panel and
monitors heat exchanger compartment temperatures. It is a
normally closed (electrically), automatic reset, temperatureactivated sensor. The limit switch guards against overheating as
a result of insufficient conditioned air passing over the heat
exchanger.
Auxiliary Limit Switches
The auxiliary limit switches are located on or near the circulator
blower and monitors blower compartment temperatures. They
are normally-closed (electrically), manual-reset sensors. These
limit switches guard against overheating as a result of insufficient
conditioned air passing over the heat exchanger.
Rollout Limit Switches
The rollout limit switches are mounted on the burner/manifold
assembly and monitor the burner flame. They are normallyclosed (electrically), manual-reset sensors. These limit switches
guard against burner flames not being properly drawn into the
heat exchanger.
Pressure Switches
The pressure switches are normally-open (closed during
operation), negative air pressure-activated switches. They
monitor the airflow (combustion air and flue products) through
the heat exchanger via pressure taps located on the induced
draft blower and the coil front cover. These switches guard
against insufficient airflow (combustion air and flue products)
through the heat exchanger and/or blocked condensate drain
conditions.
Flame Sensor
The flame sensor is a probe mounted to the burner/manifold
assembly which uses the principle of flame rectification to
determine the presence or absence of flame.
36
Circulator Blower Speeds
Low
Red
Medium Low
Orange
Medium
Blue
High
Black
Common/Neutral
White
■
115-Volt Line Connection of Accessories—Electronic
Air Cleaner
All field wiring must conform to applicable codes.
Optional Accessories Wiring
Connections should be made as shown below.
WARNING
A
HIGH VOLTAGE!
Goodman 6
Disconnect ALL power before servicing.
Multiple power sources may be present.
B
Failure to do so may cause property damage,
personal injury or death.
C
D
E
The furnace’s integrated control module is equipped with
line-voltage accessory terminals for controlling power to an
optional field-supplied electronic air cleaner.
The accessory load specifications are as follows:
Electronic Air Cleaner—1.0 Amp maximum at 120 VAC
NOTES:
■ Turn off power to the furnace before installing any
accessories.
■ Follow the air cleaner manufacturers’ instructions for locating,
mounting, grounding and controlling these accessories.
■ Accessory wiring connections are to be made through the ¹⁄₄"
quick connect terminals provided on the furnace integrated
control module.
■ The electronic air cleaner hot terminal is identified as EAC-H.
■ The electronic air cleaner neutral terminal is identified as LINE
NEUTRAL.
G
F
A. Electronic air cleaner (optional) D. Line neutral
B. EAC-H
E. 120 VAC neutral terminals
C. 120 VAC hot and park terminals F. 12-pin connector
G. Integrated control module
■
■
■
If it is necessary for the installer to supply additional line
voltage wiring to the inside of the furnace, the wiring must
conform to all local codes, and have a minimum temperature
rating of 105°C.
All line voltage wire splices must be made inside the furnace
junction box.
The integrated control module electronic air cleaner terminals
(EAC) are energized with 115 volts whenever the circulator
blower is energized.
MAINTENANCE
■
Resetting from Lockout
Furnace lockout results when a furnace is unable to achieve
ignition after 3 attempts. It is characterized by a non-functioning
furnace and a one 1-flash diagnostic LED code. If the furnace is
in “lockout,” it will (or can be) reset in any of the following ways.
1. Automatic reset. The integrated control module will
automatically reset itself and attempt to resume normal
operations following a 1 hour lockout period.
2. Manual power interruption. Interrupt 115-volt power to the
furnace for 1 to 20 seconds.
3. Manual thermostat cycle. Lower the thermostat so that there
is no longer a call for heat then reset to previous setting.
Interrupt thermostat signal to the furnace for 1 to 20 seconds.
NOTE: If the condition which originally caused the lockout still
exists, the control will return to lockout. See “Troubleshooting.”
Annual Inspection
The furnace should be inspected by a qualified installer, or
service agency at least once per year. This check should be
performed at the beginning of the heating season. This will
ensure that all furnace components are in proper working order
and that the heating system functions appropriately. Pay
particular attention to the following items. Repair or service as
necessary.
■ Flue pipe system. Check for blockage and/or leakage. Check
the outside termination and the connections at and internal to
the furnace.
■
■
■
■
Heat exchanger. Check for corrosion and/or buildup within
the heat exchanger passageways.
Burners. Check for proper ignition, burner flame, and flame
sense.
Drainage system. Check for blockage and/or leakage. Check
hose connections at and internal to furnace.
Wiring. Check electrical connections for tightness and/or
corrosion. Check wires for damage.
Filters
Filters
Maintenance
Improper filter maintenance is the most common cause of
inadequate heating or cooling performance. Filters should be
cleaned (permanent) or replaced (disposable) every 2 months or
as required. When replacing a filter, it must be replaced with a
filter of the same type and size.
Filter Removal
Depending on the installation, differing filter arrangements can be
applied. Filters can be installed in either the central return register
or a side panel external filter rack (upflow only). A media air filter
or electronic air cleaner can be used as an alternate filter. Follow
the filter sizes given in the Recommended Minimum Filter size
table to ensure proper unit performance.
37
To remove filters from an external filter rack in an upright upflow
installation, follow the directions provided with external filter rack
kit.
Horizontal Furnace Filter Removal
Filters in horizontal installations are located in the central return
register or the ductwork near the furnace.
To remove:
1. Disconnect power to the furnace.
2. Remove the filter(s) from the central return register or
ductwork.
3. Replace the filter(s) by reversing the procedure for removal.
4. Reconnect power to the furnace.
Media Air Filter or Electronic Air Cleaner Removal
Follow the manufacturer’s directions for service.
Burners
Visually inspect the burner flames periodically during the heating
season. Turn on the furnace at the thermostat and allow several
minutes for flames to stabilize, since any dislodged dust will alter
the flames normal appearance. Flames should be stable, quiet,
soft, and blue (dust may cause orange tips but they must not be
yellow). They should extend directly outward from the burners
without curling, floating, or lifting off. Flames must not impinge on
the sides of the heat exchanger firing tubes.
Induced Draft and Circulator Blowers
The bearings in the induced draft blower and circulator blower
motors are permanently lubricated by the manufacturer. No
further lubrication is required. Check motor windings for
accumulation of dust which may cause overheating. Clean as
necessary.
Condensate Trap and Drain System (Qualified Servicer
Only)
Annually inspect the drain tubes, drain trap, and field-supplied
drain line for proper condensate drainage. Check drain system
for hose connection tightness, blockage, and leaks. Clean or
repair as necessary.
Flame Sensor (Qualified Servicer Only)
5. Remove the recuperator coil front cover to expose the coil
tubes and turbulators.
6. Remove the recuperator coil turbulators individually by slowly
pulling each turbulator forward firmly.
7. Clean the recuperator coil tubes using a long handle wire
brush, such as a gun cleaning brush.
8. Clean the primary heat exchanger tubes using a wire brush
attached to a length of high grade stainless steel cable, such
as drain cleanout cable. Attach a variable speed reversible
drill to the other end of the cable. Slowly rotate the cable with
the drill and insert it into one of the heat exchanger tubes.
While reversing the drill, work the cable in and out several
times to obtain sufficient cleaning. Repeat for each tube.
9. Clean the residue from the furnace by using a vacuum
cleaner.
10. Replace the parts removed in the previous steps in reverse
order.
11. Turn on electrical power and gas to furnace. Check for leaks
and proper furnace operation.
12. Severe heat exchanger fouling is an indication of an
operational problem. Perform the checks listed in “Start-up
Procedure and Adjustments” to reduce the chances of
repeated fouling.
Bottom Return Removal
1. Disconnect power to the furnace.
2. Remove blower compartment door.
3. Push back and up on the wire filter retainer to release it from
under the front lip of the furnace base pan.
4. Slide the filter forward and out.
5. Replace the filter by reversing the procedure.
Repair and Replacement Parts
When ordering any of the listed functional parts, be sure to
provide the furnace model, manufacturing, and serial numbers
with the order.
Although only functional parts are shown in the parts list, all sheet
metal parts, doors, etc., may be ordered by description.
Parts are available from your distributor.
Under some conditions, the fuel or air supply can create a nearly
invisible coating on the flame sensor. This coating acts as an
insulator causing a drop in the flame sense signal. If the flame
sense signal drops too low the furnace will not sense flame and
will lock out. The flame sensor should be cleaned by a qualified
servicer using emery cloth or steel wool. Following cleaning, the
flame sense signal should be as indicated in the Specifications
Sheet.
Functional Parts List
■
Gas Control Valve
■
Blower Motor
■
Gas Manifold
■
Blower Wheel
■
Natural Gas Orifice
■
Blower Mounting Bracket
■
Propane Gas Orifice
■
Blower Cutoff
Flue Passages (Qualified Servicer Only)
■
Igniter
■
Blower Housing
The heat exchanger flue passageways should be inspected at the
beginning of each heating season. If necessary, clean the
passageways as outlined below.
1. Disconnect power and turn off the gas supply to the furnace.
2. Disconnect the gas line and remove the burner/manifold
assembly by removing the screws securing the assembly to
the partition panel.
3. Disconnect the flue pipe system from the induced draft
blower.
4. Remove the induced draft blower and, drain and pressure tap
hoses from the recuperator coil front cover.
■
Rollout Limit Switch
■
Heat Exchanger
■
Primary Limit Switch
■
Recuperator Coil
■
Auxiliary Limit Switch
■
Coil Front Cover
■
Pressure Switch
■
Integrated Control Module
■
Induced Draft Blower
■
Transformer
■
Capacitor
■
Door Switch
■
Flame Sensor
38
TROUBLESHOOTING
See “Electrostatic Discharge (ESD)” before touching any
electronic part on this furnace.
Furnace Fails to Operate Properly
Review “Sequence of Operation” and visually inspect the
following before troubleshooting:
WARNING
Fault Recall
HIGH VOLTAGE!
Goodman 6
Disconnect ALL power before servicing.
Multiple power sources may be present.
Failure to do so may cause property damage,
personal injury or death.
■
■
LED Code
Furnace fails to operate
None
Integrated control module
diagnostic LED provides
no signal
Fault/Cause
■
■
■
■
LED is steady On.
■
Furnace fails to operate. 1 flash
Integrated control module
diagnostic LED is flashing
1 flash.
■
Continuous
On—not
flashing
■
Furnace fails to operate. 2 flashes
Integrated control module
diagnostic LED is flashing
2 flashes.
No 115-volt power to furnace, or no
24-volt power to integrated control
module.
Blown fuse or circuit breaker.
Internal fault in integrated control
module.
Solution
■
Check that there is 115-volt power to the
furnace, or 24-volt power to integrated
control module.
Check integrated control module fuse
(3A). Replace if necessary.
Check for possible shorts in 115-volt and
24-volt circuits. Repair as necessary.
Replace bad integrated control module.
■
■
■
■
Normal operation
■
None
■
Furnace lockout due to an excessive
number of ignition “retries” (3 total).
Failure to establish flame. Cause may
be no gas to burners, front cover
pressure switch stuck open, bad igniter
or igniter alignment, improper orifices
or coated/oxidized or improperly
connected flame sensor.
Loss of flame after establishment.
Cause may be interrupted gas supply,
lazy burner flames (improper gas
pressure or restriction in flue and/or
combustion air piping), front cover
pressure switch opening or improper
induced draft blower performance.
■
Locate and correct gas interruption.
Check front cover pressure switch
operation (hose, wiring, contact
operation). Correct if necessary.
Replace or realign igniter. Igniter is fragile,
handle gently.
Check flame sensor signal. Sand sensor
with emery cloth if coated and/or
oxidized.
Check flue piping for blockage, proper
length, elbows and termination. See
“Vent/Flue Pipe.”
Verify proper induced draft blower
performance.
Pressure switch circuit is closed.
Induced draft blower is not operating.
Induced draft blower pressure switch
contacts sticking.
Shorts in pressure switch circuit.
■
■
■
■
The ignition control is equipped with a momentary push button
switch that can be used to display on the diagnostic LED the last
5 faults detected by the control. The control must be in Standby
Mode (no thermostat inputs) to use the feature. Depress the push
button switch for approximately 2 seconds. Release the switch
when the LED is turned off. The diagnostic LED will then display
the flash codes associated with the last 5 detected faults. The
order of display is the most recent fault to the least recent fault.
Is the integrated ignition/blower control board and power to
the furnace on?
Problem
■
Is the blower compartment door securely closed?
■ Are the manual shutoff valves in the gas line to the furnace
open?
■ Are all wiring connections secure?
Start the system by setting thermostat above room temperature.
Observe system response. Then use the information provided in
this section to check the system operation.
■
■
■
■
■
■
■
■
■
■
■
Replace induced draft blower pressure
switch.
Repair short.
39
Problem
■
■
LED Code
Induced draft blower runs 3 flashes
continuously with no
further furnace operation.
Integrated control module
diagnostic LED is flashing
3 flashes.
Fault/Cause
■
■
■
■
■
■
■
■
Circulator blower runs
4 flashes
continuously. No furnace
operation.
Integrated control module
diagnostic LED is flashing
4 flashes.
■
■
■
■
■
■
■
Induced draft blower and 5 flashes
circulator blower runs
continuously. No furnace
operation.
Integrated control module
diagnostic LED is flashing
5 flashes.
■
Furnace fails to operate. 6 flashes
Integrated control module
diagnostic LED is flashing
6 flashes.
■
■
■
■
■
■
■
■
Solution
Pressure switch circuit not closed.
Induced draft blower is operating.
Pressure switch hose blocked, pinched
or connected improperly.
Blocked flue and/or inlet air pipe,
blocked drain system or weak induced
draft blower.
Incorrect pressure switch setpoint or
malfunctioning switch contacts.
Loose or improperly connected wiring.
■
Primary or auxiliary limit circuit is open
or faulty.
Insufficient conditioned air over the
heat exchanger. Blocked filters,
restrictive ductwork, improper
circulator blower speed or failed
circulator blower.
Loose or improperly connected wiring.
■
Flame sensed with no call for heat.
Short to ground in flame sensor circuit.
■
Correct short at flame sensor or in flame
sensor wiring.
Rollout limit switch open.
Integrated control module fuse is
blown.
Flame rollout.
Misaligned burners, blocked flue
and/or air inlet pipe or failed induced
draft blower.
Loose or improperly connected wiring.
Short in 24-volt AC control circuits or
safety circuits.
Faulty rollout limit switch.
■
Check burners for proper alignment.
Check flue and air inlet piping for
blockage, proper length, elbows and
termination. Correct as necessary. See
“Vent/Flue Pipe.”
Check rollout limit switch. Replace, if
necessary.
Check induced draft blower for proper
performance. Replace, if necessary.
Tighten or correct wiring connection.
Repair short in 24-volt AC control/safety
circuit(s).
Replace integrated control module fuse
(3A).
■
■
■
■
■
■
■
■
■
■
■
■
■
■
Normal furnace operation. 7 flashes
Integrated control module
diagnostic LED is flashing
7 flashes.
■
■
■
■
■
■
Furnace not operating.
8 flashes
Integrated control module
diagnostic LED is flashing
8 flashes.
■
■
■
■
■
■
Induced draft blower runs Continuous
continuously. Furnace
flashes
fails to operate.
Integrated control module
diagnostic LED is flashing
continuously.
■
■
■
■
40
Flame sensor microamp signal is low.
Flame sensor is coated/oxidized.
Flame sensor incorrectly positioned in
burner flame.
Lazy burner flame due to improper gas
pressure or combustion air.
■
Problem with igniter circuit. Improperly
connected igniter. Bad igniter.
Poor unit ground.
Poor burner ground.
Faulty integrated control module.
■
Polarity of 115-volt or 24-volt power is
reversed.
Polarity of 115-volt AC power to
furnace or integrated control module is
reversed.
Red and blue wires to transformer are
reversed.
Poor unit ground.
■
■
■
■
■
■
■
■
Inspect pressure switch hose. Repair, if
necessary,
Inspect flue and/or inlet air piping for
blockage, proper length, elbows, and
termination. Check drain system. Correct
as necessary.
Correct pressure switch setpoint or
contact motion.
Tighten or correct wiring connection.
Check primary limit switch. Replace, if
necessary.
Check filters and ductwork for blockage.
Clean filters or remove obstruction.
Check circulator blower speed and
performance. Correct speed or replace
blower if necessary.
Tighten or correct wiring connection.
Sand flame sensor with emery cloth.
Inspect for proper sensor alignment.
Compare current gas pressure to rating
plate info. Adjust as needed.
Check and correct wiring from integrated
control module to igniter
Replace bad igniter.
Check and correct unit ground wiring.
Replace bad integrated control module.
Review wiring diagram to correct polarity.
Verify proper ground. Correct if
necessary.
Reverse red and blue wires connected to
transformer.
Wiring Diagram
0
Steady On = Normal Operation
1
1 Flash = System Lockout (Retries/Recycles Exceeded
2
24 VAC
Humidifier
2 Flashes = Low Fire Pressure Switch Stuck Closed
3
3 Flashes = Low Fire Pressure Switch Stuck Open
4
4 Flashes = Thermal Protective Device Open
5 Flashes = Flame Sensed With Gas Control Valve De-energized
7
7 Flashes = Low Flame Sense Signal
8
8 Flashes = Check Igniter Or Improper Grounding
Continuous Flashes = 115-Volt AC Power Reversed
115 VAC
24V Thermostat
Connections
C
G R
W
OR
Fuse
GY
Integrated Control Module
Field GND
On Off
Field Splice
Heat
Off
Delay*
Factory Settings Shown
1
5
4
9
8
7
COOL-H
Manual Reset Rollout Limit Control(s)
(Single Control on 45k Btu)
24 VAC
40 VA
Transformer
W
XFMR-H
115 VAC
Flame Sensor
W
FS
Hot Surface Igniter
IGN
GY
L
HE O
AT
-H
COOL-H
BR
Y
HI -H
AT
HE
W
Symbol
GY
W
BK
R
BU
OR
Y
G
PK
A
V
BR
Circulator
Blower
OR
Color
Gray
White
Black
Red
Blue
Orange
Yellow
Green
Pink
Azure
Violet
Brown
Line Neutrals
OR
OR
BU
BK
Induced
Draft
Blower
IND
Integrated Control Module
Integrated Control Module
G
R
PK
R
Circulator
Blower
BR
Auto Reset
Primary
Limit Control
RO2 (11)
TH (3)
Y
BR
R
BR
W
Internal To
Integrated Control
Plug Connection
HLO (1)
Manual Reset Auxiliary Limit Controls
LINE-H
BK (HI)
BU (MED)
OR (MED LOW)
R (LOW)
Terminal
NO
C
HLI (7)
W
BK
See
Note 4
Junction
PS (10)
PSO (4)
TO
MICRO
Y
Induced Draft
Blower Pressure
Switch
RO1 (5)
W
High Voltage Field
G
OR
1
HEAT-H
GND
Y
R
GY
2
Low Voltage Field
High Voltage (115V)
C
NO
Front Cover Pressure Switch
PK
XFMR-H
See
Note 6
115 VAC Hot and Park Terminals
G
OR
FS
Diagnostic LED
BU
10
11
OR
Low Voltage (24V)
PK
OR
115 VAC Neutral
Terminals
Over-Current
Protection Device
2
6
GY
Mode*
Pressure Switch
3
12
2nd
Stage
Delay*
Igniter
Gas
Control
PM Valve
MVL (2)
C
W Y
Switch (Temp.)
C
HI
MVH (12)
BK
Equipment GND
Integrated Control Module
GND
GND (8)
MVC (9)
40 VA
Transformer
BK
9 Flashes = High Fire Pressure Switch Stuck Open
C
TR (6)
24V Thermostat Connections
9
24 VAC
Humidifier
Blower Compartment
Door Switch (Open
when Door Open)
GY
BK
6
OR
Capacitor
PR
Blower Compartment
EAC-H
Manual Reset Auxiliary
Limits
(1) In Upflow Blower Deck
(2) In Counterflow Blower
Housing
Burner Compartment
GND
BK
Electronic Air
Cleaner
LINE-H
Junction Box
Door
Switch
W
W
Induced Draft Blower
Disconnect
W
Auto Reset Primary Limit Control
PR
BU
L
Y
OR
OR
R
N
O
R
PK
Manual Reset Rollout Limit Control(s)
(Single Control on 45k Btu)
24 VA
Humidifier
PM
1
GY
N
O
C
GY
GND
Hot Surface Igniter
BU
Junction
Box
Front Cover Pressure Switch
C
2
HI
3
GN D
BR
BK
OR
Gas Control Valve
Check codes for proper wiring and circuit protection before
installation.
NOTES:
1. Set heat anticipator on room thermostat at 0.7 amps.
2. Manufacturer’s specified replacement parts must be used
when servicing.
3. If any of the original wire as supplied with the furnace must be
replaced, it must be replaced with wiring material having a
temperature rating of at least 105ºC. Use copper conductors
only.
N
W
G
Flame
Sensor
L
Disconnect
To 115 VAC/10/60 HZ Power Supply
with Over-Current Protection Device
2-Circuit
Connector
N
C
W
Induced Draft
Blower Pressure
Switch
GND
To 115 VAC/10/60 HZ Power Supply with Over-Current Protection Device
4. If heating and cooling blower speeds are not the same,
discard jumper before connecting blower leads. Unused
blower leads must be placed on “PARK” terminals of
integrated control or taped.
5. Unit must be permanently grounded and conform to NEC and
local codes.
6. To recall the last 5 faults, most recent to least recent, depress
switch for more than 2 seconds while in standby (no
thermostat inputs).
41
ASSISTANCE OR SERVICE
If you need further assistance, you can write to the below
address with any questions or concerns:
Whirlpool® Home Cooling and Heating
14610 Breakers Drive
Jacksonville, FL 32258
Please include a daytime phone number in your correspondence.
42
Accessories
to order accessories, contact your Whirlpool® Home Cooling and
Heating dealer.
Notes
43
WPIO-299F
© 2009. All rights reserved.
®Registered Trademark/TM Trademark of Whirlpool, U.S.A.,
Manufactured under license by Tradewinds Distributing Company, LLC., Jacksonville, Florida
8/09
Printed in U.S.A.