Goodman Mfg AMV8 User Manual
These furnaces comply with requirements
embodied in the American National S tandard
/ National Standard of Canada ANSI
Z21.47·CSA-2.3 Gas Fired Central
Furnaces.
INSTALLATION & OPERATING
INSTRUCTIONS for AMV8
GAS FIRED WARM AIR FURNACE
2-STAGE
(CATEGORY 1)
®
C
US
RECOGNIZE THIS SYMBOL AS A SAFETY PRECAUTION.
ATTENTION INSTALLING 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 operation.
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.
*NOTE: Please contact your distributor or our website for the applicable product data book referred to in this manual.
I0-247A 12/04
© 2004 Goodman Manufacturing Company, L.P.
Table of Contents
I. Warnings ..........................................................................................................................................................................3
O THE OWNER ................................................................................................................................................ 4
T
O THE INSTALLER ............................................................................................................................................ 4
T
RANSPORTATION DAMAGE .................................................................................................................................. 4
T
II. Safety............................................................................................................................................................................... 4
ADDITIONAL SAFETY CONSIDERATIONS .................................................................................................................. 5
LECTROSTATIC DISCHARGE (ESD) PRECAUTIONS ................................................................................................. 5
E
III. Product Application.......................................................................................................................................................5
IV . Location Requirement s and Considerations............................................................................................................... 6
GENERAL ......................................................................................................................................................... 6
LEARANCES AND ACCESSIBILITY ......................................................................................................................... 6
C
ORIZONTAL INSTALLATION .................................................................................................................................. 6
H
URNACE SUSPENSION ....................................................................................................................................... 7
F
XISTING FURNACE REMOVAL .............................................................................................................................. 7
E
HERMOSTAT LOCATION ...................................................................................................................................... 7
T
V . Combustion and Ventilation Air Requirement s............................................................................................................ 8
VI. Category I Venting (Vertical Venting)......................................................................................................................... 10
VENTING......................................................................................................................................................... 10
VII. Masonry Chimneys .................................................................................................................................................... 11
CHECKLIST SUMMARY ....................................................................................................................................... 11
HECK 1 - PROPER CHIMNEY TERMINATION. ........................................................................................................ 11
C
HECK 2 - ANY SOLID OR LIQUID FUEL APPLIANCES VENTED INTO THIS CHIMNEY CHANNEL ............................................ 12
C
HECK 3 - CHIMNEY CROWN CONDITION............................................................................................................. 12
C
HECK 4 - DEBRIS IN CLEANOUT ....................................................................................................................... 12
C
HECK 5 - LINER CONDITION. ............................................................................................................................ 12
C
HECK 6 - DILUTION AIR. ................................................................................................................................. 13
C
HECK 7 - COMPLETE THE INSTALLATION. ........................................................................................................... 13
C
IX 1 - LINER TERMINATION. .............................................................................................................................. 13
F
IX 2 -CHANGE VENTING ARRANGEMENTS ............................................................................................................ 13
F
IX 3 - REBUILD THE CROWN............................................................................................................................. 13
F
IX 4 - RELINING. ............................................................................................................................................ 13
F
VIII. Electrical Connections.............................................................................................................................................. 14
WIRING HARNESS ............................................................................................................................................ 14
OLT LINE CONNECTIONS........................................................................................................................... 14
115 V
UNCTION BOX RELOCATION.............................................................................................................................. 14
J
OLT THERMOSTAT WIRING .......................................................................................................................... 15
24 V
ETTING THE HEAT ANTICIPATOR ........................................................................................................................ 16
S
INGLE STAGE THERMOSTAT APPLICATIONS ......................................................................................................... 16
S
OLT DEHUMIDISTAT WIRING ......................................................................................................................... 16
24 V
OSSIL FUEL APPLICATION ................................................................................................................................16
F
OLT LINE CONNECTION OF ACCESSORIES (HUMIDIFIER AND ELECTRONIC AIR CLEANER).................................... 16
115 V
AC HUM .................................................................................................................................................. 17
24 V
IX. Gas Supply and Piping ............................................................................................................................................... 17
GENERAL ....................................................................................................................................................... 17
IGH ALTITUDE DERATE .................................................................................................................................... 17
H
ROPANE GAS CONVERSION.............................................................................................................................. 18
P
AS PIPING CONNECTION ................................................................................................................................. 18
G
PFLOW INSTALLATIONS .................................................................................................................................... 19
U
AS PIPING CHECKS........................................................................................................................................ 19
G
ROPANE GAS TANKS AND PIPING ..................................................................................................................... 19
P
ROPANE GAS PIPING CHARTS .......................................................................................................................... 20
P
X. Circulating Air and Filters............................................................................................................................................ 20
DUCTWORK - AIR FLOW.................................................................................................................................... 20
F
ILTERS - READ THIS SECTION BEFORE INSTALLING THE RETURN AIR DUCTWORK .................................................... 20
PRIGHT INSTALLATIONS ................................................................................................................................... 21
U
IRCULATION AIR FILTERS ................................................................................................................................. 21
C
ORIZONTAL INSTALLATIONS .............................................................................................................................. 21
H
XI. Sequence of Operation (Integrated Ignition Control) ............................................................................................... 21
POWER UP ..................................................................................................................................................... 21
ORMAL HEATING SEQUENCE ............................................................................................................................ 21
N
IO-247A 12/04
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Table of Contents
NORMAL COOLING SEQUENCE ........................................................................................................................... 21
ONSTANT FAN ............................................................................................................................................... 22
C
XII. Start-up Procedure and Adjustment ......................................................................................................................... 22
FURNACE OPERATION ........................................................................................................................................ 22
URNACE START-UP ......................................................................................................................................... 22
F
URNACE SHUTDOWN ....................................................................................................................................... 22
F
AS SUPPLY PRESSURE MEASUREMENT ............................................................................................................. 22
G
AS MANIFOLD PRESSURE MEASUREMENT AND ADJUSTMENT ................................................................................. 23
G
AS INPUT RATE MEASUREMENT (NATURAL GAS ONLY) ....................................................................................... 23
G
EMPERATURE RISE ......................................................................................................................................... 23
T
IRCULATOR BLOWER SPEED ADJUSTMENT ......................................................................................................... 24
C
DJUST BLOWER HEAT OFF DELAY ................................................................................................................... 25
A
IRCULATOR BLOWER FAN TIMING ADJUSTMENT .................................................................................................. 25
C
XIII. Operational Checks................................................................................................................................................... 25
BURNER FLAME ............................................................................................................................................... 26
UXILIARY LIMIT CONTROL ................................................................................................................................26
A
RIMARY LIMIT ................................................................................................................................................ 26
P
XIV . Safety Circuit Description ........................................................................................................................................ 26
GENERAL ....................................................................................................................................................... 26
NTEGRATED CONTROL MODULE ......................................................................................................................... 26
I
RIMARY LIMIT ................................................................................................................................................ 26
P
UXILIARY LIMIT .............................................................................................................................................. 26
A
OLLOUT LIMITS.............................................................................................................................................. 26
R
RESSURE SWITCHES ....................................................................................................................................... 26
P
LAME SENSOR ............................................................................................................................................... 26
F
XV. Troubleshooting......................................................................................................................................................... 26
ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS ............................................................................................... 26
IAGNOSTIC CHART ......................................................................................................................................... 27
D
ESETTING FROM LOCKOUT .............................................................................................................................. 27
R
XVI. Maintenance .............................................................................................................................................................. 27
ANNUAL INSPECTION ......................................................................................................................................... 27
ILTERS.......................................................................................................................................................... 27
F
ILTER MAINTENANCE....................................................................................................................................... 27
F
ILTER REMOVAL ............................................................................................................................................. 27
F
PRIGHT FILTER REMOVAL ................................................................................................................................27
U
NDUCED DRAFT AND CIRCULATOR BLOWER MOTORS ............................................................................................ 28
I
LAME SENSOR (QUALIFIED SERVICER ONLY)...................................................................................................... 28
F
GNITER (QUALIFIED SERVICER ONL Y)................................................................................................................. 28
I
URNERS ....................................................................................................................................................... 28
B
XVII. Before Leaving an Installation ................................................................................................................................ 28
XVIII. Repair and Replacement Parts .............................................................................................................................. 28
TROUBLESHOOTING CHARTS ....................................................................................................................................... 29
WIRING DIAGRAM ............................................................................................................................................................ 31
WARNING
F THE INFORMATION IN THESE INSTRUCTIONS IS NOT FOLLOWED EXACTLY, A
I
FIRE OR EXPLOSION MAY RESULT CAUSING PROPERTY DAMAGE, PERSONAL
INJURY OR LOSS OF LIFE.
O NOT STOR E O R USE GA SOLIN E O R OTHE R FL AMM ABLE VAPO RS AN D
–
D
LIQUIDS IN THE VICINITY OF THIS OR ANY OTHER APPLIANCE.
–
WHAT TO DO IF YOU SMELL GAS
•
•
PHONE IN YOUR BUILDING.
•
PHONE.
•
DEPARTMENT.
NSTALL ATION AND SERVI CE MU ST BE PER FORMED BY A QUALI FIED INST ALLE R,
–
I
SERVICE AGENCY OR THE GAS SUPPLIER.
O NOT TRY TO LIGH T ANY AP PLIANCE.
D
O NOT TOUCH ANY ELECTRICAL SWITCH; DO NOT USE ANY
D
MMEDIATELY CALL YOUR GAS SUPPLIER FROM A NEIGHBOR’S
I
FOLLOW THE GAS SUPP LIER’ S IN STRU CTIO NS.
F YOU CANNOT REACH YOUR GAS SUPPLIER, CALL THE FIRE
I
IO-247A 12/04
:
3
WARNING
SHOULD OVERHEATING OCCUR OR THE GAS SUPPLY FAIL TO SHUT OFF, TURN
OFF THE MANUAL GAS SHUTOFF VALVE EXTERNAL TO THE FURNACE BEFORE
TURNING OFF THE ELECTRICAL SUPPLY.
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 ins tal led 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 avo id the da ng er o f C O 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.
CO can cause serious illness including permanent brain damage or death.
B10259-216
-
WARNING
O PREVENT PERSONAL INJURY OR DEATH DUE TO IMPROPER INSTALLATION,
T
ADJUSTMENT, ALTERATION, SERVICE OR MAINTENANCE, REFER TO THIS
MANUAL.
QUALIFIED INSTALLER, SERVICE AGENCY OR THE GAS SUPPLIER.
OR ADDITIONAL ASSISTANCE OR INFORMATION, CONSULT A
F
TO THE OWNER
It is important that you fill out the owner’s registration card and
mail it today. This will assist us in contacting you should any service
or warranty information change in the future. When filling in the
registration card, be sure to include the model, manufacturing, and
serial numbers, plus the installation date.
Your warranty certificate is also supplied with the unit. Read the
warranty carefully and note what is covered. Keep the warranty
certificate in a safe location for future reference.
If additional information or operating instructions are required,
contact the dealer where the purchase was made.
Homeowner Notice:
If the residence is left unattended for an extended period of time
(i.e., 4 hours or greater), have your heating system periodically
checked to ensure proper operation. Potential circumstances
beyond our control such as power outages, gas service
interruptions, product installation, or component failures could result
in heating system operational problems.
TO THE INSTALLER
Before installing this unit, please read this manual thoroughly to
familiarize yourself with specific items which must be adhered to,
including but not limited to: unit maximum external static pressure,
gas pressures, BTU input rating, proper electrical connections,
circulating air temperature rise, minimum or maximum CFM, and
motor speed connections, and venting. These furnaces are
designed for Category I venting only.
WARNING
O PREVENT POSSIBLE PERSONAL INJURY OR DEATH DUE TO ASPHYXIATION,
T
THIS FURNACE MUST BE
C
ATEGORY
ROVISIONS MUST BE MADE FOR VENTING COMBUSTION PRODUCTS
P
OUTDOORS THROUGH A PROPER VENTING SYSTEM.
COULD BE A LIMITING FCTOR IN LOCATING THE FURNACE.
III
VENTING.
ATEGORY I VENTED. DO NOT VENT USING
C
HE LENGTH OF FLUE PIPE
T
TRANSPORTATION DAMAGE
All units are securely packed in shipping containers tested
according to International Safe Transit Association specifications.
The carton must be checked upon arrival for external damage. If
damage is found, a request for inspection by carrier’s agent must
be made in writing immediately.
The furnace must be carefully inspected on arrival for damage
and bolts or screws which may have come loose in transit. In the
event of damage the consignee should:
1. Make a notation on delivery receipt of any visible damage
to shipment or container.
2. Notify carrier promptly and request an inspection.
3. With concealed damage, carrier must be notified as soon
as possible - preferably within five days.
4. File the claim with the following support documents within
a nine month statute of limitations.
• Original or certified copy of the Bill of Lading, or indemnity
bond.
• Original paid freight bill or indemnity in lieu thereof.
• Original or certified copy of the invoice, showing trade and
other discounts or reductions.
• Copy of the inspection report issued by carrier’s
representative at the time damage is reported to carrier.
The carrier is responsible for making prompt inspection of damage
and for a thorough investigation of each claim. The distributor or
manufacturer will not accept claims from dealers for transportation
damage.
Keep this literature in a safe place for future reference.
II. SAFETY
Adhere to the following warnings and cautions when installing,
adjusting, altering, servicing, or operating the furnace.
WARNING
T
O PREVENT PERSONAL INJURY OR DEATH DUE TO IMPROPER INSTALLATION,
ADJUSTMENT, ALTERATION, SERVICE OR MAINTENANCE, REFER TO THIS
MANUAL.
QUALIFIED INSTALLER, SERVICE AGENCY OR THE GAS SUPPLIER.
OR ADDITIONAL ASSISTANCE OR INFORMATION, CONSULT A
F
IO-247A 12/04
4
WARNING
HIS PRODUCT CONTAINS OR PRODUCES A CHEMICAL OR CHEMICALS WHICH
T
MAY CAUSE SERIOUS ILLNESS OR DEATH AND WHICH ARE KNOWN TO THE
S
TATE OF CALIFORNIA TO CAUSE CANCER, BIRTH DEFECTS OR OTHER
REPRODUCTIVE HARM.
WARNING
O PREVENT POSSIBLE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH
T
DUE TO ELECTRICAL SHOCK, THE FURNACE MUST BE LOCATED TO PROTECT
THE ELECTR ICAL COMPO NENTS FROM WA TER.
WARNING
T
HIS UNIT MUST NOT BE USED AS A "CONSTRUCTION HEATER" DURING THE
FINISHING PHASES OF CONSTRUCTION ON A NEW STRUCTURE.
USE MAY RESULT IN PREMATURE FAILURE OF THE UNIT DUE TO EXTREMELY
LOW RETURN AIR TERMPERATURES AND EXPOSURE TO CORROSIVE OR VERY
DIRTY ATMOSPHERES.
HIS TYPE OF
T
WARNING
EATING UNIT SHOULD NOT BE UTILIZED WITHOUT REASONABLE, ROUTINE,
H
INSPECTION, MAINTENANCE AND SUPERVISION.
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 MAYBE 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. I N THE EVENT T HAT THE BUI LDING MA Y BE EX POSED TO F REEZING
TEMPERATURES AND WILL BE VACANT, ANY HYDRONIC COIL UNITS SHOULD
BE DRAINED AS WELL AND, IN SUCH CASE, ALTERNATIVE HEAT SOURCES
SHOULD BE UTI LIZED.
F THE BUILIDNG IN WHICH ANY
I
3. Service integrated control module or connecting wiring
following the discharge process in step 2. Use caution not
to recharge your body with static electricity; (i.e., do not move
or shuffle your feet, do not touch ungrounded objects, etc.).
If you come in contact with an ungrounded object, repeat
step 2 before touching control or wires.
4. Discharge your body to ground before removing a new
control from its container. Follow steps 1 through 3 if
installing the control on a furnace. Return any old or new
controls to their containers before touching any ungrounded
object.
III. PRODUCT APPLICA TION
This furnace is primarily designed for residential home-heating
applications. It is NOT designed or certified for use in mobile homes,
trailers or recreational vehicles. Neither is it designed or certified
for outdoor applications. The furnace must be installed indoors
(i.e., attic space, crawl space, or garage area provided the garage
area is enclosed with an operating door).
This furnace can be used in the following non-industrial commercial
applications:
Schools, Office buildings, Churches, Retail stores,
Nursing homes, Hotels/motels, Common or office areas
In such applications , the furnace must be installed with the following
stipulations:
• It must be installed per the installation instructions provided
and per local and national codes.
• It must be installed indoors in a building constructed on site.
• It must be part of a ducted system and not used in a free air
delivery application.
• It must not be used as a “make-up” air unit.
• All other warranty exclusions and restrictions apply.
To ensure proper installation and operation, thoroughly read this
manual for specifics pertaining to the installation and application
of this product.
ADDITIONAL SAFETY CONSIDERATIONS
• This furnace is approved for Category I Venting only.
• Provisions must be made for venting combustion products
outdoors through a proper venting system. The length of
flue pipe could be a limiting factor in locating the furnace.
ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS
NOTE: Discharge body’s static electricity before touching unit. An
electrostatic discharge can adversely affect electrical components.
Use the following precautions during furnace installation and
servicing to protect the integrated control module from damage.
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
furnaces near the control. Any tools held in a person’s
hand during grounding will be discharged.
WARNING
OSSIBLE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH DUE TO FIRE,
P
EXPLOSION, SMOKE, SOOT, CONDENSTAION, ELECTRICAL SHOCK OR CARBON
MONOXIDE MAY RESULT FROM IMPROPER INSTALLATION, REPAIR, OPERATION,
OR MAINTENANCE OF THIS PRODUCT.
WARNING
T
O PREVENT PROPERTY DAMAGE, PERSONAL INJURY OR DEATH DUE TO FIRE,
DO NOT INSTALL THIS FURNACE IN A MOBILE HOME, TRAILER, OR RECREATIONAL
VEHICLE.
To ensure proper furnace operation, install, operate and maintain
the furnace in accordance with these installation and operation
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/CSA B149 Installation Codes,
local plumbing or waste water codes, and other applicable codes.
A copy of the National Fuel Gas Code (NFPA 54/ANSI Z223.1) can
be obtained from any of the following:
American National Standards Institute
1430 Broadway
New York, NY 10018
IO-247A 12/04
5
National Fire Protection Association
1 Batterymarch Park
Quincy, MA 02269
CSA International
8501 East Pleasant Valley
Cleveland, OH 44131
A copy of the CAN/CSA B149 Installation Codes can also be
obtained from:
CSA International
178 Rexdale Boulevard
Etobicoke, Ontario, Canada M9W 1R3
The rated heating capacity of the furnace should be greater than or
equal to the total heat loss of the area to be heated. The total heat
loss should be calculated by an approved method or in accordance
with “ASHRAE Guide” or “Manual J-Load Calculations” published
by the Air Conditioning Contractors of America.
In the USA, this furnace MUST be installed in accordance with the
latest edition of the ANSI Z223.1 booklet entitled “National Fuel
Gas Code” (NFPA 54), and the requirements or codes of the local
utility or other authority having jurisdiction. In Canada, this furnace
must be installed in accordance with the current CAN/CGA-B149.1
& 2 Gas Installation Codes, local plumbing or waste water codes
and other applicable codes.
Additional helpful publications available from the NFPA are, NFPA
90A - Installation of Air Conditioning and Ventilating System and
NFPA 90B - Warm Air Heating and Air Conditioning System.
All venting shall be in accordance with PART 7, Venting of
Equipment, of the National Fuel Gas Code, ANSI Z223.1, or
applicable local building and/or air conditioning codes. These
publications are available from:
National Fire Protection Association, Inc.
Batterymarch Park
Quincy, MA 02269
The GMV8 series of furnaces meet the California NOx emission
standards and California seasonal efficiency standards. ANNUAL
inspections of the furnace and its vent system is strongly
recommended.
• Provisions must be made for venting combustion products
outdoors through a proper venting system. The length of
flue pipe could be a limiting factor in locating the furnace.
• Ensure 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 Section V, Combustion and
Ventilation Air Requirements.
• The furnace must be level. If the furnace is to be set on a
floor that may become wet or damp at times, the furnace
should be supported above the floor on a concrete base
sized approximately 1-1/2" larger than the base of the
furnace.
• Ensure upflow or horizontal furnaces are not installed directly
on carpeting, or any other combustible material. The only
combustible material allowed is wood.
• Exposure to contaminated combustion air will result in safety
and performance-related problems. 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
and masonry acid washing materials
• If the furnace is used in connection with a cooling unit, install
the furnace upstream or in parallel with the cooling unit coil.
Premature heat exchanger failure will result if the cooling
unit coil is placed ahead of the furnace.
IV . LOCATION REQUIREMENTS AND CONSIDERA TIONS
GENERAL
WARNING
OSSIBLE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH DUE TO FIRE,
P
EXPLOSION, SMOKE, SOOT, CONDENSTAION, ELECTRICAL SHOCK OR CARBON
MONOXIDE MAY RESULT FROM IMPROPER INSTALLATION, REPAIR, OPERATION,
OR MAINTENANCE OF THIS PRODUCT.
• 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 inches (457 mm) 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. Do not install the unit with the
access doors on the “up/top” or “down/bottom” side of the
furnace.
• Do not connect this furnace to a chimney flue that serves a
separate appliance designed to burn solid fuel.
WARNING
O PREVENT POSSIBLE EQUIPMENT DAMAGE, PROPERTY DAMAGE, PERSONAL
T
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 Section V,
Combustion and Ventilation Air Requirements.
• Centrally locate the furnace with respect to the proposed or
existing air distribution system.
• Ensure the temperature of the return air entering the furnace
is between 55°F and 100°F when the furnace is heating.
IO-247A 12/04
CLEARANCES AND ACCESSIBILITY
Unobstructed front clearance of 24" for servicing is recommended.
VENT
B1-VENT SINGLE
1" 6" 1" 3" 0" 1"
SIDES FRONT BACK
TOP
(PLENUM)
Top clearance for horizontal configuration - 1"
HORIZONTAL INSTALLATION
Line contact to framing is permitted when installed in the horizontal
configuration. Line contact is defined as the portion of the cabinet
that is formed by the intersection of the top and side.
6
ACCESSIBILITY CLEARANCE,WHERE GREATER, SHOULD
TAKE PRECEDENCE OVER MINIMUM FIRE PROTECTION
CLEARANCE. A gas-fired furnace for installation in a residential
garage must be installed so that the ignition source and burners
are located not less than eighteen inches (18") above the floor and
is protected or located to prevent physical damage by vehicles. A
gas furnace must not be installed directly on carpeting, tile, or
other combustible materials other than wood flooring.
Vent Pipe C learance to Combustibles 6" using Single Wall Connector or 1"
using B-1 vent.
Top - 1"
Back - 0"
Side
Clearance - 1"
Front Clearance - 3"
• Adequate combustion/ combustion air must be supplied to
the closet.
• Furnace must be completely sealed to floor or base.
Combustion/ ventilation air supply pipes must terminate 12"
from top of closet and 12" from floor of closet. DO NOT
remove solid base plate for bottom return.
• Return air ducts must be completely sealed to the furnace
and terminate outside the enclosure. surfaces.
FURNACE SUSPENSION
If suspending the furnace from rafters or joist, use 3/8" threaded
rod and 2”x2”x3/8” angle iron as shown below. The length of rod
will depend on the application and the clearances necessary.
PROVIDE 8" MINMUM CLEARANCE BETWEEN
CENTER ROD AND FURNACE CABINET
TO ALLOW FOR CIRCULATOR BLOWER REMOVAL
SUPPORT
NUTS
3/8" DIAMETER
THREADED ROD
(6 PLACES)
HOLD DOWN
NUTS
2"x2"x3/8"
ANGLE IR ON
(3 PLACES)
POSITION AS CLOSE AS POSSIBLE
TO BLOWER DECK TO ALLOW FOR
CIRCULATOR BLOWER REMVOAL
Suspended Furnace
ASSURE FURNACE IS LEVEL FROM
END TO END AND HAS A SLIGHT
FORWARD TILT WITH THE FRO NT
OF THE FURNACE 0"-3/4"
BELOW THE BACK OF THE FURNACE
TILT OUTWARD TO ALLOW FOR
DOOR AND CIRCULATOR BLOWER
REMOVAL
Section 1.23.1. The following steps shall be followed with each
appliance connected to the venting system placed in operation,
while any other appliances connected to the venting system are
not in operation:
a.Seal any unused openings in the venting system;
b. Inspect the venting system for proper size and horizontal
pitch, as required by the National Fuel Gas Code, ANSI
Z223.1 or the CAN/CSA B149 Installation Codes and these
instructions. Determine that there is no blockage or
restriction, leakage, corrosion and other deficiencies which
could cause an unsafe condition;
c.In so 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. 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 shall operate at maximum speed. Do not operate a
summer exhaust fan. Close fireplace dampers;
d. Follow the lighting instructions. Place the appliance being
inspected in operation. Adjust thermostat so appliance shall
operate continuously;
e.Test for draft hood equipped appliance spillage at the draft
hood relief opening after 5 minutes of main burner operation.
Use the flame of a match or candle;
f. 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 burning appliance to their
previous conditions of use;
g.If improper venting is observed during any of the above tests,
the venting system must be corrected.
Corrections must be in accordance with the latest edition of the
National Fuel Gas Code NFPA 54/ANSI Z223.1 and/or CAN/CSA
B149 Installation Codes.
If resizing is required on any portion of the venting system, use the
appropriate table in Appendix G in the latest edition of the National
Fuel Gas Code ANSI Z223.1 and/or CAN/CSA B149 Installation
Codes.
THERMOSTAT LOCATION
In an area having good air circulation, locate the thermostat about
five feet high on a vibration-free inside wall. Do not install the
thermostat where it may be influenced by any of the following:
• Drafts, or dead spots behind doors, in corners, or under
cabinets.
• Hot or cold air from registers.
• Radiant heat from the sun.
• Light fixtures or other appliances.
• Radiant heat from a fireplace.
• Concealed hot or cold water pipes, or chimneys.
• Unconditioned areas behind the thermostat, such as an
outside wall.
EXISTING FURNACE REMOVAL
NOTE: When an existing furnace is removed from a venting system
serving other appliances, the venting system may be too large to
properly vent the remaining attached appliances.
The following vent testing procedure is reproduced from the
American National Standard/National Standard of Canada for
Gas-Fired Central Furnaces ANSI Z21.47b-2002, CSA-2.3b-2002
IO-247A 12/04
7
DRAFTS OR DEAD SPOTS
-BEHIND DOORS
-IN CORNERS
-UNDER CABINETS
Thermostat Influences
COLD
HOT
Consult the instructions packaged with the thermostat for mounting
instructions and further precautions.
V . COMBUSTION AND VENTILA TION AIR REQUIREMENTS
safety exhaust, odor control, and air for compressors.
(d) In addition to air needed for combustion, air shall be supplied
for ventilation, including all air required for comfort and
proper working conditions for personnel.
WARNING
O AVOID PROPERTY DAMAGE, PERSONAL INJURY OR DEATH, SUFFICIENT
T
FRESH AIR FOR PROPER COMBUSTION AND VENTILATION OF FLUE GASES MUST
BE SUPPL IED.
FURNACE AREA.
OST HOMES REQUIRE OUTSIDE AIR BE SUPPLIED INTO THE
M
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, ensure there is an adequate
supply of combustion and ventilation air for the other appliances.
Refer to the latest edition of the National Fuel Gas Code NFP A 54/
ANSI Z223.1 (Section 5.3), or CAN/CSA B149 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.
This furnace must use indoor air for combustion. It cannot be
installed as a direct vent (i.e., sealed combustion) furnace.
Most homes will require outside air be supplied to the furnace area
by means of ventilation grilles or ducts connecting directly to the
outdoors or spaces open to the outdoors such as attics or crawl
spaces.
The following information on air for combustion and ventilation is
reproduced from the National Fuel Gas Code NFPA 54/ANSI
Z223.1 Section 5.3.
5.3.1 General:
(a) The provisions of 5.3 apply to gas utilization equipment
installed in buildings and which require air for combustion,
ventilation and dilution of flue gases from within the building.
They do not apply to (1) direct vent equipment which is
constructed and installed so that all air for combustion is
obtained from the outside atmosphere and all flue gases are
discharged to the outside atmosphere, or (2) enclosed
furnaces which incorporate an integral total enclosure and
use only outside air for combustion and dilution of flue gases.
(b) Equipment shall be installed in a location in which the facilities
for ventilation permit satisfactory combustion of gas, proper
venting and the maintenance of ambient temperature at safe
limits under normal conditions of use. Equipment shall be
located so as not to interfere with proper circulation of air.
When normal infiltration does not provide the necessary air,
outside air shall be introduced.
(e) While all forms of building construction cannot be covered
in detail, air for combustion, ventilation and dilution of flue
gases for gas utilization equipment vented by natural draft
normally may be obtained by application of one of the
methods covered in 5.3.3 and 5.3.4.
(f) Air requirements for the operation of exhaust fans, kitchen
ventilation systems, clothes dryers, and fireplaces shall be
considered in determining the adequacy of a space to
provide combustion air requirements.
5.3.2 Equipment Located in Unconfined Spaces:
In unconfined spaces (see definition below) in buildings,
infiltration may be adequate to provide air for combustion
ventilation and dilution of flue gases. However, in buildings
of tight construction (for example, weather stripping, heavily
insulated, caulked, vapor barrier, etc.), additional air may
need to be provided using the methods described in 5.3.3b or 5.3.4.
Space, Unconfined.
For purposes of this Code, a space whose volume is not
less than 50 cubic feet per 1,000 BTU per hour of the
aggregate input rating of all appliances installed in that
space. Rooms communicating directly with the space in
which the appliances are installed through openings not
furnished with doors, are considered a part of the unconfined
space.
5.3.3 Equipment Located in Confined Spaces:
(a) All Air from Inside the Building: The confined space shall be
provided with two permanent openings communicating
directly with an additional room(s) of sufficient volume so
that the combined volume of all spaces meets the criteria
for an unconfined space. The total input of all gas utilization
equipment installed in the combined space shall be
considered in making this determination. Each opening shall
have a minimum free area of 1 square inch per 1,000 BTU
per hour of the total input rating of all gas utilization
equipment in the confined space, but not less than 100
square inches. One opening shall be within 12 inches of the
top and one within 12 inches of the bottom of the enclosure.
NOTE: Each opening must have
a free area of not less than one
square inch per 1000 BTU of
the total input rating of all equipment in the enclosure, but not
less than 100 square inches.
Chimney or Gas Vent
Water
Heater
Furnace
Opening
Opening
(c) In addition to air needed for combustion, process air shall
be provided as required for: cooling of equipment or material,
controlling dew point, heating, drying, oxidation or dilution,
IO-247A 12/04
8
Equipment Located in Confined Spaces;
All Air from Inside Building. See 5.3.3-a.
(b) All Air from Out doors: The confined space shall be provided
with two permanent openings, one commencing within 12
inches of the top and one commencing within 12 inches of
the bottom of the enclosure. The openings shall
communicate directly, or by ducts, with the outdoors or
spaces (crawl or attic) that freely communicate with the
outdoors.
1. When directly communicating with the outdoors, each
opening shall have a minimum free area of 1 square inch
per 4,000 BTU per hour of total input rating of all
equipment in the enclosure.
Chimney or Gas Vent
Ventilation louvers
(each e nd of attic)
NOTE: The inlet and outlet air
openings must eac h have a free
area of not less than one square
inch per 4000 BTU of the
total input rating of all equipment
in the enclosure.
Outlet Air
Water
Heater
Alternate
air inlet
Furnace
Ventilation louvers for
unheated crawl space
Inlet Air
Chimney or Gas Vent
NOTE: The air duct openings
must have a free area of not
less than one square inch per
2000 BTU of the total input
rating of all equipment in the
enclosure*.
Furnace
Water
Heater
Outlet air duct
Inlet air duct
*If the appliance room is located against an outside wall and the
air openings communicate directly with the outdoors, each opening
shall have a free area of not less than one square inch per 4,000
BTU per hour of the total input rating of all appliances in the
enclosure.
Equipment Located in Confined Spaces;
All Air from Outdoors. See 5.3.3-b.
4. When ducts are used, they shall be of the same crosssectional area as the free area of the openings to which
they connect. The minimum dimension of rectangular air
ducts shall not be less than 3 inches.
Equipment Located in Confined Spaces; All Air from Outdoors—Inlet
Air from Ventilated Crawl Space and Outlet Air to Ventilated Attic.
See 5.3.3-b
2. When communicating with the outdoors through vertical
ducts, each opening shall have a minimum free area of
1 square inch per 4,000 BTU per hour of total input rating
of all equipment in the enclosure.
Chimney or Gas V ent
Water
Heater
Furnace
Equipment Located in Confined Spaces; All Air from Outdoors
Through Ventilated Attic. See 5.3.3-b.
Ventila tion lo uvers
(each end of attic)
Outlet Air
Inlet ai r d u c t
[ends 1 ft (300 mm)
above floor]
NOTE : The inlet and outlet air
openings must each have a free
area of not less than one square
inch per 4000 BTU of the
total inp u t rating of all eq uipm ent
in the enclosure.
3. When communicating with the outdoors through horizontal
ducts, each opening shall have a minimum free area of
1 square inch per 2,000 BTU per hour of total input rating
of all equipment in the enclosure.
NOTE: The single opening must have
a free area of not less than one
square inch per 3000 BTU of
the total input rating of all equipment in the enclosure, but not less than
the sum of the areas of all vent
connectors in the confined space.
Chimney or Gas Vent
Water
Heater
Furnace
Equipment Located in Confined Spaces; All Air from Outdoors -
Single Air Opening. See 5.3.3-b.
5. One permanent opening may be permitted, provided the
equipment has clearances of at least 1” from the sides
and back and 6” from the front. The opening shall
communicate directly with the outdoors and must be
located within 12” of the top of the enclosure. The
minimum free area of the opening shall be 1 square inch
per 3,000 BTU per hour of total input rating of all
equipment in the enclosure. The minimum free area shall
not be less than the sum of the areas of all vent
connectors in the confined space.
5.3.4 Specially Engineered Installations:
The requirements of 5.3.3 shall not necessarily govern when
special engineering, approved by the authority having
jurisdiction, provides an adequate supply of air for combustion,
ventilation, and dilution of flue gases.
Opening
Alternate
Opening
Location
IO-247A 12/04
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5.3.5 Louvers and Grilles:
140
N/A
In calculating free area in 5.3.3, consideration shall be given
to the blocking effect of louvers, grilles or screens protecting
openings. Screens used shall not be smaller than 1/4 inch
mesh. If the area through a design of louver or grille is known,
it should be used in calculating the size of opening required to
provide the free area specified. If the design and free area is
not known, it may be assumed that wood louvers will have 2025 percent free area and metal louvers and grilles will have
60-75 percent free area. Louvers and grilles shall be fixed in
the open position or interlocked with the equipment so that
they are opened automatically during equipment operation.
5.3.6 Special Conditions Created by Mechanical Exhausting
or Fireplaces:
Operation of exhaust fans, ventilation systems, clothes dryers,
or fireplaces may create conditions requiring special attention
to avoid unsatisfactory operation of installed gas utilization
equipment.
Upflow or Horizontal units are shipped with the induced draft
blower discharging from the top of the furnace. (“Top” is as viewed
for an upflow installation.) The induced draf t blower can be rotated
90 degrees for Category I venting (Figure 3). For horizontal
installations, a four inch single wall pipe can be used to extend the
induced draft blower outlet 1/2” beyond the furnace cabinet. Vent
the furnace in accordance with the National Fuel Gas Code NFPA
54/ANSI Z223.1 - latest edition. In Canada, vent the furnace in
accordance with the National Standard of Canada, CAN/CSA
B149.1 and CAN/CSA B149.2 - latest editions and amendments.
Venting
THIS FURNACE IS NOT DESIGN CERTIFIED TO BE
HORIZONT ALLY VENTED.
VI. CA TEGORY I VENTING (VERTICAL VENTING)
WARNING
O PREVENT POSSIBLE PERSONAL INJURY OR DEATH DUE TO ASPHYXIATION,
T
THIS FURNACE MUST BE
C
ATEGORY
III
VENTING.
ATEGORY I VENTED. DO NOT VENT USING
C
Category I Venting is venting at a non-positive pressure. A furnace
vented as Category I is considered a fan-assisted appliance and
the vent system does not have to be “gas tight.” NOTE: Gas
furnaces with induced draft blowers draw products of combustion
through a heat exchanger allowing, in some instances, common
venting with natural draft appliances (i.e. water heaters).
All installations must be vented in accordance with National Fuel
Gas Code NFPA 54/ANSI Z223.1 - latest edition. In Canada, the
furnaces must be vented in accordance with the National Standard
of Canada, CAN/CSA B149.1 and CAN/CSA B149.2 - latest editions
and amendments.
NOTE: The vertical height of the Category I venting system must
be at least as great as the horizontal length of the venting system.
WARNING
O PREVENT POSSIBLE PERSONAL INJURY OR DEATH DUE TO ASPHYXIATION,
T
COMMON VENTING WITH OTHER MANUFACTURER'S INDUCED DRAFT APPLIANCS
IS NOT ALLOWED.
The minimum vent diameter for the Category I venting system is
as shown below:
MODEL
70 4 Inch
90 4 Inch
115 N/A
MINIMUM VENT
UPFLOW
Supply
Air
Upflow Rotated Induced Draft Blower
To rotate the induced draft blwer counterclockwise, proceed as
follows:
1. Disconnect electrical power from the furnace.
2. Disconnect the induced draft blower power leads, flue pipe,
and pressure switch tubing.
3. Remove the round cutout from the appropriate side of the
furnace.
4. Remove and save the four screws that hold the induced
draft blower to the flue collector box.
5. Turn the induced draft blower 90 degrees clockwise, or
counterclockwise. The gasket is adhered to the back plate
and will rotate with the blower assembly.
6. Reinstall the induced draft blower on the flue collector box,
using the four screws removed in Step 3. T ighten screws to
provide an airtight seal.
7. Reconnect the induced draft blower power leads. NOTE: If
the wires are not long enough, pull extra wire from the wire
bundle in the blower compartment.
8. Remove and save the screw that holds the pressure switch
to the furnace top panel.
9. Relocate the pressure switch to the same side as the flue
outlet in the hole provided.
10. Reconnect the draft blower power leads, flue pipe, and
pressure switch tubing. Make sure that all wires and the
pressure switch tubing are at least one inch from the flue
pipe, or any other hot surfaces.
11. Restore power to the furnace.
Under some conditions, larger vents than those shown above may
be required or allowed.
When an existing furnace is removed from a venting system serving
other appliances, the venting system may be too large to properly
NEVER ALLOW THE PRODUCTS OF COMBUSTION, INCLUDING CARBON
MONOXIDE, TO ENTER THE RETURN DUCTWORK OR CIRCULATION AIR SUPPLY.
WARNING
vent the remaining attached appliances.
IO-247A 12/04
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