Goodman *CVC96, *MVC96 Installation Instructions Manual
I
NSTALLA TION
I
NSTRUCTIONS FOR
*CVC96 & *MVC96
T
WO-STAGE
(T ype FSP CA TEGOR Y IV Direct
or Non Direct V ent Air Furnace)
These furnaces comply with requirements embodied in the American National Standard / National Standard of Canada ANSI Z21.47·CSA-2.3
Gas Fired Central Furnaces.
s a professional installer you have an obligation to know
A
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.
RECOGNIZE THIS SYMBOL
AS A SAFETY PRECAUTION.
*NOTE: Please contact your distributor or our website for
the applicable Specification Sheet referred to in this manual.
GAS F
Affix all manuals
adjacent to the unit.
URNACE
Installer:
T ABLE OF CONTENTS
SAFETY CONSIDERATIONS .................................... 3
SHIPPING INSPECTION ......................................... 4
ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS ................. 4
TO THE INSTALLER........................................... 4
PRODUCT DESCRIPTION ....................................... 4
FEATURES ................................................... 4
PRODUCT APPLICA TION ....................................... 5
LOCATION REQUIREMENTS & CONSIDERATIONS ........... 6
CLEARANCES AND ACCESSIBILITY ................................ 7
EXISTING FURNACE REMOVAL .................................. 7
THERMOSTAT LOCATION ....................................... 9
COMBUSTION & VENTILATION AIR REQUIREMENTS ................ 9
INSTALLATION POSITIONS .................................... 9
HORIZONTAL APPLICATIONS & CONSIDERATIONS ........10
FURNACE SUSPENSION........................................10
FRONT COVER PRESSURE SWITCH TUBE LOCATION ..............10
DRAIN TRAP AND LINES ......................................10
LEVELING ..................................................10
ALTERNATE VENT/FLUE AND COMBUSTION AIR CONNECTIONS ....10
AL TERNATE ELECTRICAL AND GAS LINE CONNECTIONS............11
DRAIN PAN .................................................11
FREEZE PROTECTION .........................................11
PROPANE GAS/HIGH ALTITUDE INSTALLATIONS ..........11
VENT/FLUE PIPE & COMBUSTION AIR PIPE ................12
DUAL CERTIFICATION: NON-DIRECT/DIRECT VENT ..............12
MATERIALS AND JOINING METHODS ............................12
PROPER VENT/FLUE AND COMBUSTION AIR PIPING PRACTICES ....13
TERMINATION LOCATIONS .....................................13
CANADIAN VENTING REQUIREMENTS ............................14
STANDARD FURNACE CONNECTIONS ............................14
VENT/FLUE PIPE ...........................................14
COMBUSTION AIR PIPE DIRECT VENT INSTALLATION...............14
NON-DIRECT VENT (SINGLE PIPE) PIPING .....................16
VENT/INTAKE TERMINATIONS FOR INSTALLATION
MULTIPLE DIRECT VENT FURNACES ....................19
OF
CONCENTRIC VENT TERMINATION ..............................19
SIDE WALL VENT KIT .......................................19
CONDENSATE DRAIN LINES & DRAIN TRAP ................19
GENERAL DRAIN INFORMATION ................................19
FIELD SUPPLIED DRAIN ......................................20
UPFLOW MODEL INSTALLED VERTICALLY .......................20
DRAIN EXITING RIGHT SIDE...................................20
DRAIN EXITING LEFT SIDE ....................................20
UPFLOW MODEL INSTALLED HORIZONTALLY
RIGHT SIDE DOWN ...............................21
WITH
UPFLOW MODEL INSTALLED HORIZONTALLY WITH LEFT SIDE DOWN .21
COUNTERFLOW MODEL INSTALLED VERTICALLY..................22
IOG-2008A
12/14
www.goodmanmfg.com • www.amana-hac.com
is a registered trademark of Maytag Corporation or its related companies and is used under license. All rights reserved.
5151 San Felipe Suite 500
Houston, TX 77056
© 2014 Goodman Manufacturing Company, L.P.
DRAIN EXITING LEFT SIDE ....................................22
DRAIN EXITING RIGHT SIDE...................................22
COUNTERFLOW MODEL INSTALLED HORIZONTALLY
RIGHT SIDE DOWN ...............................22
WITH
COUNTERFLOW MODEL INSTALLED HORIZONTALLY
LEFT SIDE DOWN ................................23
WITH
ELECTRICAL CONNECTIONS .................................23
WIRING HARNESS ...........................................23
115 VOLT LINE CONNECTIONS ...............................23
J
UNCTION BOX RELOCATION ..................................24
24 VOLT THERMOST AT WIRING ...............................24
SINGLE-STAGE HEATING THERMOSTAT APPLICATION ..............25
24 VOLT DEHUMIDISTAT WIRING ..............................25
FOSSIL FUEL APPLICATIONS ...................................26
115 VOLT LINE CONNECTION OF ACCESSORIES
(HUMIDIFIER AND ELECTRONIC AIR CLEANER) .............26
AUXILIARY ALARM SWITCH:...................................28
GAS SUPPL Y AND PIPING......................................28
HIGH ALTITUDE DERATE......................................28
PROPANE GAS CONVERSION ...................................28
GAS PIPING CONNECTIONS ....................................29
PROP ANE GAS TANKS AND PIPING .............................31
CIRCULATING AIR & FILTERS ................................32
DUCT WORK - AIR FLOW ....................................32
CHECKING DUCT STATIC ......................................32
BOTTOM RETURN AIR OPENING [UPFLOW MODELS] ............33
FILTERS - READ THIS SECTION BEFORE INSTALLING
THE RETURN AIR DUCT WORK ..........................33
UPRIGHT INST ALLATIONS ......................................34
HORIZONTAL INST ALLATIONS ...................................34
ST ARTUP PROCEDURE & ADJUSTMENT .....................34
DRAIN TRAP PRIMING ........................................34
FURNACE OPERATION ........................................34
GAS SUPPLY PRESSURE MEASUREMENT .........................35
GAS MANIFOLD PRESSURE MEASUREMENT AND ADJUSTMENT ......37
GAS INPUT RATE MEASUREMENT (NATURAL GAS ONLY).........37
TEMPERA TURE RISE ..........................................38
CIRCULATOR BLOWER SPEEDS .................................38
BLOWER HEAT OFF DELAY TIMINGS ...........................41
COMFORTNET™ SYSTEM .....................................41
OVERVIEW .................................................41
AIRFLOW CONSIDERATIONS ....................................41
FOSSIL FUEL APPLICATIONS ................................... 42
CTK0* WIRING .................................................42
COMFORTNET SYSTEM ADVANCED FEATURES....................43
FURNACE ADVANCED FEATURES MENUS ........................44
THERMOSTAT MENU .........................................46
DIAGNOSTICS ................................................46
NETWORK TROUBLESHOOTING .................................46
SYSTEM TROUBLESHOOTING...................................47
NORMAL SEQUENCE OF OPERATION........................47
POWER UP .................................................47
HEA TING MODE .............................................47
COOLING MODE ............................................ 47
FAN ONLY MODE ...........................................48
OPERATIONAL CHECKS ....................................... 48
SAFETY CIRCUIT DESCRIPTION.............................. 48
INTEGRATED CONTROL MODULE ..............................48
PRIMARY LIMIT ..............................................48
AUXILIAR Y LIMIT .............................................48
ROLLOUT LIMIT ............................................. 48
PRESSURE SWITCHES .........................................49
FLAME SENSOR .............................................49
TROUBLESHOOTING ..........................................49
ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS ................49
DIAGNOSTIC CHART ..........................................49
RESETTING FROM LOCKOUT ..................................49
MAINTENANCE .................................................49
ANNUAL INSPECTION .........................................49
FILTERS ....................................................50
BURNERS ...................................................50
INDUCED DRAFT AND CIRCULATOR BLOWERS ....................50
CONDENSATE TRAP AND DRAIN SYSTEM
(QUALIFIED SERVICER ONLY) ...........................50
FLAME SENSOR (QUALIFIED SERVICER ONLY) ..................50
FLUE PASSAGES (QUALIFIED SERVICER ONLY) ..................51
BEFORE LEAVING AN INSTALLATION ........................ 51
REP AIR AND REPLACEMENT PARTS..........................51
DIP SWITCHES.................................................52
STATUS CODES ................................................ 53
TROUBLESHOOTING CHART .................................54
WIRING DIAGRAM ............................................. 59
SPECIAL INSTRUCTIONS FOR PRODUCTS INSTALLED .... 6 0
IN THE STATE OF MASSACHUSETTS........................60
G
OODMAN
INSTALL OR PERFORM SERVICE ON THIS UNIT, YOU ASSUME RESPONSIBILITY FOR ANY PERSONAL INJURY OR PROPERTY DAMAGE WHICH MAY RESULT
M
WILL NOT BE RESPONSIBLE FOR ANY INJURY OR PROPERTY DAMAGE ARISING FROM IMPROPER SERVICE OR SERVICE PROCEDURES
ANY JURISDICTIONS REQUIRE A LICENSE TO INSTALL OR SERVICE HEATING AND AIR CONDITIONING EQUIPMENT
. IF
YOU
.
.
2
S
AFETY
C
ONSIDERATIONS
Adhere to the following warnings and cautions when installing, adjusting, altering, servicing, or operating the furnace.
T o ensure proper installation and operation, thoroughly read
this manual for specifics pertaining to the installation and
application of this product.
This furnace is manufactured for use with natural gas. It
may be field converted to operate on L.P. gas by using the
appropriate L.P. conversion kit listed in the PROPANE GAS/
HIGH ALTITUDE INSTALLATIONS section of this manual
Install this furnace only in a location and position as speci-
LOCATION REQUIREMENTS & CONSIDERA TIONS sec-
fied in
tion and INSTALLATION POSITIONS section of this manual.
Provide adequate combustion and ventilation air to the furnace as specified in COMBUSTION & VENTILATION AIR RE-
QUIREMENTS section of this manual.
Combustion products must be discharged to the outdoors.
Connect this furnace to an approved vent system only, as
specified in
VENT/FLUE PIPE & COMBUSTION AIR PIPE sec-
tion of this manual.
Never test for gas leaks with an open flame. Use a commer-
cially available soap solution made specifically for the detection of leaks to check all connections, as specified in GAS
SUPPL Y AND PIPING section of this manual.
Always install a furnace to operate within the furnace’ s intended temperature-rise range with a duct system which has
external static pressure within the allowable range, as specified on the furnace rating plate and OPERATIONAL CHECKS
section of these instructions.
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.
A gas-fired furnace for installation in a residential garage
must be installed as specified in the LOCATION REQUIRE-
MENTS AND CONSIDERA TIONS section of this manual.
WARNING
TO
PREVENT PERSONAL INJURY OR DEATH DUE TO IMPROPER
INSTALLATION, ADJUSTMENT, ALTERATION, SERVICE OR MAINTENANCE
REFER TO THIS MANUAL
INFORMATION, CONSULT A QUALIFIED INSTALLER, SERVICER AGENCY OR
THE GAS SUPPLIER
. FOR
ADDITIONAL ASSISTANCE OR
.
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:
D
O NOT TRY TO LIGHT ANY APPLIANCE
D
O NOT TOUCH ANY ELECTRICAL SWITCH; DO NOT USE ANY PHONE
IN YOUR BUILDING
I
MMEDIATELY CALL YOUR GAS SUPPLIER FROM A NEIGHBOR’S
PHONE
. F
I
F YOU CANNOT REACH YOUR GAS SUPPLIER, CALL THE FIRE
DEPARTMENT
I
NSTALLATION AND SERVICE MUST BE PERFORMED BY A QUALIFIED
INSTALLER, SERVICE AGENCY OR THE GAS SUPPLIER
.
OLLOW THE GAS SUPPLIER’S INSTRUCTIONS
.
.
.
.
WARNING
T
HIS 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
.
WARNING
H
EATING UNIT SHOULD NOT BE UTILIZED WITHOUT REASONABLE
ROUTINE, INSPECTION, MAINTENANCE AND SUPERVISION
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
MAYBE EXPOSED TO FREEZING TEMPERATURES AND WILL BE VACANT
ALL WATER-BEARING PIPES SHOULD BE DRAINED, THE BUILDING SHOULD
BE PROPERL Y 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
.
. IF
THE
,
,
,
,
,
CAUTION
FROZE N AND BURST WATER PIPE HAZ ARD
AILURE TO PROTECT AGAINST THE RISK OF FREEZING MAY RESULT IN
F
PROPERTY DAMAGE
PECIAL PRECAUTIONS
S
AREA WHICH MAY DROP BELOW FREEZING
OPERATION OR DAMAGE TO EQUIPMENT
ENVIRONMENT HAS THE POTENTIAL OF FREEZING, THE DRAIN TRAP AND
DRAIN LINE MUST BE PROTECTED
HEATERS, ELECTRIC HEAT TAPE AND/OR
RECOMMENDED FOR THESE INSTALLATIONS
.
MUST BE
MADE IF INSTALLING FURNACE IN AN
. T
HIS CAN CAUSE IMPROPER
. IF
THE FURNACE
. THE
USE OF ACCESSORY DRAIN TRAP
RV
ANTIFREEZE IS
.
WARNING
TO
PREVENT POSSIBLE PROPERTY DAMAGE, PERSONAL INJURY OR
DEATH DUE TO ELECTRICAL SHOCK, THE FURNACE MUST BE LOCATED TO
PROTECT THE ELECTRICAL COMPONENTS FROM WATER
.
This furnace may be used as a construction site heater only
if certain conditions are met. These conditions are listed in
the PRODUCT APPLICATION section of this manual.
3
Advertencia especial para la instalación de calentadores ó manejadoras
de aire en áreas cerradas como estacionamientos ó cuartos de servicio.
RISQUE D'EMPOISONNEMENT AU
MONOXYDE DE CARBONE
Cette ventilation est nécessaire pour éviter le danger d'intoxication
au CO pouvant survenir si un appareil produi sant du monoxyde
de carbone continue de fonctionner a u sein de la zone confinée.
Le monoxyde de
des
dommages perm a n e n ts au cerveau et meme la mo rt.
carbone peut ca user des maladies graves telles que
B10259-216
CO can cause serious illness including permanent brain
damage or death.
B10259-216
Las emisiones de monóxido de carbono pueden circular a través
del aparato cuando s e opera en cualquier modo.
El monóxido d e carbono puede causar e nfermedades severas
como daño cerebral permanente ó muerte.
B10259-216
WARNING
WARNING
P
OSSIBLE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH DUE TO
FIRE, EXPLOSION, SMOKE, SOOT, CONDENSATION, ELECTRICAL SHOCK
OR CARBON MONOXIDE MAY RESULT FROM IMPROPER INSTALLATION
REPAIR OPERATION, OR MAINTENANCE OF THIS PRODUCT
.
S
,
HOULD 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
.
,
Drain trap must be primed at time of installation. Trap is internally partitioned; add water to both inlet ports until water
appears at both sides of the outlet opening. Failure to prime trap at time of installation may have a negative effect on
combustion quality and pressure switch action.
SHIPPING INSPECTION
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.
ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS
NOTE: Discharge your 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.
4
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.
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.
TO
PREVENT PROPERTY DAMAGE, PERSONAL INJURY OR DEATH DUE TO
FIRE, DO NOT INSTALL THIS FURNACE IN A MOBILE HOME, TRAILER, OR
RECREATIONAL VEHICLE
WARNING
.
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.
P
RODUCT DESCRIPTION
FEATURES
This furnace is a part of the ComfortNet™ family of products. The CTK0* ComfortNet thermostat kit allows this furnace to be installed
as part of a digitally communicating system. The ComfortNet system provides automatic airflow configuration, enhanced setup
features, and enhanced diagnostics. It also reduces the number of thermostat wires to a maximum of four . It may be also installed as
part of a non-communicating system using a standard 24 VAC thermostat.
This product may be installed with the ComfortNet thermostat and a non-ComfortNet compatible single stage air conditioning unit.
However , this reduces the benefits of the ComfortNet system as the enhancements will only apply to the furnace.
P
RODUCT 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.
• It must be installed as a two-pipe systems for combustion air .
• All other warranty exclusions and restrictions apply This furnace is an ETL dual-certified appliance and is appropriate for use
with natural or propane gas (NOTE: If using propane, a propane conversion kit is required).
Dual certification means that the combustion air inlet pipe is optional and the furnace can be vented as a:
Non-direct vent (single pipe) central forced air furnace in which combustion air is taken from the installation area or from air
ducted from the outside or ,
Direct vent (dual pipe) central forced air furnace in which all combustion air supplied directly to the furnace burners through
a special air intake system outlined in these instructions.
This furnace may be used as a construction site heater ONL Y if all of the following conditions are met:
• The vent system is permanently installed per these installation instructions.
• A room thermostat is used to control the furnace. Fixed jumpers that provide continuous heating CANNOT be used and can
cause long term equipment damage.
• Return air ducts are provided and sealed to the furnace.
5
• A return air temperature range between 60ºF (16ºC) and 80ºF (27ºC) is maintained.
• Air filters are installed in the system and maintained during construction replaced as appropriate during construction, and
upon completion of construction.
• The input rate and temperature rise are set per the furnace rating plate.
• 100% outside air is provided for combustion air requirements during construction. T emporary ducting can be used.
NOTE: Do not connect the temporary duct directly to the furnace. The duct must be sized for adequate combustion and
ventilation in accordance with the latest edition of the National Fuel Gas Code NFP A 54/ANSI Z223.1 or CAN/CSA B149.1
Installation Codes.
• The furnace heat exchanger , components, duct system, air filters and evaporator coils are thoroughly cleaned following final
construction clean up.
• All furnace operating conditions (including ignition, input rate, temperature rise and venting) are verified according to
these installation instructions.
NOTE: The Commonwealth of Massachusetts requires that the following additional requirements must also be met:
• Gas furnaces must be installed by a licensed plumber or gas fitter .
• A T-handle gas cock must be used.
• If the unit is to be installed in an attic, the passageway to and the service area around the unit must have flooring.
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 (NFP A 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
25 West 43rd Street, 4th Floor
New York, NY 10036
National Fire Protection Association
1 Batterymarch Park
Quincy , MA 012169-7471
CSA International
8501 East Pleasant V alley
Independence, OH 44131
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.
A copy of the CAN/CSA B149 Installation Codes can also be obtained from:
CSA International
178 Rexdale Boulevard
Etobicoke, Ontario, Canada M9W 1R3
L
OCATION REQUIREMENTS
& C
ONSIDERA TIONS
Follow the instructions listed below and the guidelines provided in
the Combustion and Ventilation Air Requirements section when
selecting a furnace location.
• Centrally locate the furnace with respect to the proposed or
existing air distribution system.
• Ensure the temperature of the return air entering the furnace
TO
PREVENT POSSIBLE EQUIPMENT DAMAGE, PROPERTY DAMAGE
PERSONAL INJURY OR DEATH, THE FOLLOWING BULLET POINTS MUST BE
OBSERVED WHEN INSTALLING THIS UNIT
WARNING
,
.
is between 55°F and 100°F when the furnace is heating.
• Provide provisions for venting combustion products outdoors
through a proper venting system. Special consideration
should be given to vent/flue pipe routing and combustion
air intake pipe when applicable. Refer to Vent/Flue Pipe
and Combustion Air Pipe -Termination Locations for
P
OSSIBLE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH DUE TO
FIRE, EXPLOSION, SMOKE, SOOT, CONDENSATION, ELECTRICAL SHOCK
OR CARBON MONOXIDE MAY RESULT FROM IMPROPER INSTALLATION
REPAIR OPERATION, OR MAINTENANCE OF THIS PRODUCT
WARNING
,
.
appropriate termination locations and to determine if the
piping system from furnace to termination can be
6
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.
• Locate the furnace so condensate flows downwards to the drain. Do not locate the furnace or its condensate drainage
system in any area subject to below freezing temperatures without proper freeze protection. Refer to Condensate Drain
Lines and T rap for further details.
• 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 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 1-1/2" larger than the base of the furnace. Refer to the
Horizontal Applications and Considerations for leveling of horizontal furnaces.
• Ensure upflow or horizontal furnaces are not installed directly on carpeting, or any other combustible material. The only
combustible material allowed is wood.
• A special accessory subbase must be used for 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. Do not install the furnace
where the combustion air is exposed to the following substances:
permanent wave solutions cleaning solutions (such as perchloroethylene)
printing inks chlorinated waxes or cleaners
paint removers chlorine-based swimming pool chemicals
varnishes water softening chemicals
hydrochloric acid carbon tetrachloride
cements and glues deicing salts or chemicals
halogen type refrigerants antistatic fabric softeners for clothes dryers
and masonry acid washing materials
• Seal off a non-direct vent furnace if it is installed near an area frequently contaminated by any of the above substances. This
protects the non-direct vent furnace from airborne contaminants. T o ensure that the enclosed non-direct vent furnace has
an adequate supply of combustion air , vent from a nearby uncontaminated room or from outdoors. Refer to the Combustion
and Ventilation Air Requirements for details.
• If the furnace is used in connection with a cooling coil unit, install the furnace upstream or in parallel with the cooling coil
unit. Premature heat exchanger failure will result if the cooling unit is placed ahead of the furnace.
For vertical (upflow or downflow) applications, the minimum cooling coil width shall not be less than furnace width
minus 1”. Additionally, a coil installed above an upflow furnace or under a counterflow furnace may be the same
width as the furnace or may be one size larger than the furnace. Example: a “C” width coil may be installed with
a “B” width furnace.
For upflow applications, the front of the coil and furnace must face the same direction.
• 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, ensure the access doors are not 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.
• On Counterflow Installations, the air conditioning coil must be downstream on the supply (positive) side of the
furnace heat exchanger .
• Counterflow Installation over a noncombustible floor. Before setting the furnace over the plenum opening, ensure
the surface around the opening is smooth and level. A tight seal should be made between the furnace base and floor
by using a silicone rubber caulking compound or cement grout.
7
b
ible fl
• Counterflow Installation over a combustible
floor. If installation over a combustible floor
becomes necessary, use an accessory subbase
(see Specification Sheet applicable for your
model for details.) A special accessory subbase
must be used for upright counterflow unit
installations over any combustible material
including wood. Refer to subbase instructions
for installation details. Follow the instructions
POSITION* SIDES REAR FRONT BOTTOM FLUE TOP
Upflow 0" 0" 3" C 0" 1"
Horizontal 6" 0" 3" C 0" 6"
C = If placed on combustible floo r, floor MUS T b e w oo d on ly.
with the subbase for proper installation. Do not
install the furnace directly on carpeting, tile,
or other combustible material other than wood
flooring. (NOTE: The subbase will not be
required if an air conditioning coil is installed
between the supply air opening on the furnace
and the floor .)
CLEARANCES AND ACCESSIBILITY
NOTES:
• For servicing or cleaning, a 24” front clearance is
required.
• Unit connections (electrical, flue and drain) may necessitate
greater clearances than the minimum clearances listed above.
• In all cases, accessibility clearance must take precedence over
clearances from the enclosure where accessibility clearances are
greater.
NOTES:
• For servicing or cleaning, a 24” front clearance is required.
• Unit connections (electrical, flue and drain) may necessitate
greater clearances than the minimum clearances listed above.
• In all cases, accessibility clearance must take precedence over
clearances from the enclosure where accessibility clearances are
greater.
POSITION* SIDES REAR FRONT BOTTOM FLUE TOP
Counterfl ow 0" 0" 3" NC 0" 1"
Horizontal 6" 0" 3" C 0" 6"
C = If placed on combustible floor, floor MUS T b e w oo d on ly.
NC = For install ation on non-combustible fl oors only. A combustible subbase
must
*M96VC MINIMUM CLEARANCES TO COMBUSTIBLE MATERIALS
(INCHES)
*C96VC MINIMUM CLEARANCES TO COM BUSTIBLE MATERIALS
(INCHES)
e used for inst allations on combust
TOP
BOTTOM
Counterflow
ooring.
TOP
BOTTOM
Figure 1
Installations must adhere to the clearances to combustible materials to which this furnace has been design certified. The minimum
clearance information for this furnace is provided on the unit’s clearance label. These clearances must be permanently maintained.
Clearances must also accommodate an installation’s gas, electrical, and 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.
Refer to V ent/Flue Pipe and Combustion Air Pipe for details.
NOTE: In addition to the required clearances to combustible materials, a minimum of 24 inches service clearance must be available
in front of the unit.
A furnace installed in a confined space (i.e., a closet or utility room) must have two ventilation openings with a total minimum free
area of 0.25 square inches per 1,000 BTU/hr 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 inches of the top; the other opening
must be within 12 inches 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.
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 Z21.47, CSA-2.3 latest edition 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:
8
1. Seal any unused openings in the venting system.
2. Inspect the venting system for proper size and horizontal pitch, as required by the National Fuel Gas Code, ANSI
Z223.1 or the Natural Gas and Propane Installation Code, CSA B149.1-05 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. T urn 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.
6. Follow the lighting instructions. Place the appliance being inspected in operation. Adjust thermostat so appliance shall
operate continuously .
7. T est for spillage from draft hood 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 National Gas and Propane Installation Code CSA B149.1-05.
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 burning appliance to their
previous conditions of use.
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 CSA B149.1-05 Installation Codes.
THERMOSTAT LOCATION
The thermostat should be placed approximately five feet from the floor on a vibration-free, inside wall in an area having good air
circulation. 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.
TO
• Radiant heat from a fireplace.
• Concealed hot or cold water pipes, or chimneys.
• Unconditioned areas behind the thermostat, such as an
outside wall.
AVOID PROPERTY DAMAGE, PERSONAL INJURY OR DEATH
SUFFICIENT FRESH AIR FOR PROPER COMBUSTION AND VENTILATION OF
FLUE GASES MUST BE SUPPLIED
SUPPLIED INTO THE FURNACE AREA
Consult the instructions packaged with the thermostat for mounting instructions and further precautions.
C
OMBUSTION
& V
ENTILA TION AIR REQUIREMENTS
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.
WARNING
,
. M
OST HOMES REQUIRE OUTSIDE AIR BE
.
If this furnace is to be installed in the same space with other gas appliances, such as a water heater , ensure there is an adequate
supply of combustion and ventilation air for the other appliances. Refer to the latest edition of the National Fuel Gas Code NFPA
54/ANSI Z223.1 or CAN/CSA B149 Installation Codes or applicable provisions of the local building codes for determining the
combustion air requirements for the appliances.
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.
9
I
NST ALLATION POSITIONS
This furnace may be installed in an upright position or horizontal on either the left or right side panel. Do not install this furnace
on its back. For upright upflow furnaces, return air ductwork may be attached to the side panel(s) and/or basepan. For horizontal
upflow furnaces, return air ductwork must be attached to the basepan. For both upright or horizontal counterflow furnaces, return
ductwork must be attached to the basepan (top end of the blower compartment). NOTE: Ductwork must never be attached to the
back of the furnace. Contact your distributor for proper airflow requirements and number of required ductwork connections. Refer
to “Recommended Installation P ositions” figure for appropriate installation positions, ductwork connections, and resulting airflow
arrangements.
H
ORIZONT AL APPLICA TIONS
& C
ONSIDERA TIONS
When installing a furnace horizontally, additional consideration must be given to the following:
FURNACE SUSPENSION
If suspending the furnace from rafters or joists, use 3/
8" threaded rod and 2”x2”x1/8” angle iron as shown in
the following diagram. The length of rod will depend on
the application and the clearances necessary .
If the furnace is installed in a crawl space it must be
suspended from the floor joist or supported by a concrete pad. Never install the furnace on the ground or
allow it to be exposed to water .
2" 2" 3/8"
ANGLE IRON
XX
(3
PLACES
FRONT COVER PRESSURE SWITCH TUBE LOCATION
When an upflow model is installed horizontally with
left side down or a counterflow model is installed
)
Figur e 2
horizontally with right side down, the front cover
pressure switch tube must be re-located to the lower port of the collector box cover .
1. R emove tube from front cover pressure switch and collector box cover.
2. R emove rubber plug from bottom collector box port and install on top collector box port.
3. Locate 24” x 1/4” tube in parts bag.
4. Install one end on front cover pressure switch.
5. R oute tube to lower port on collector box cover and cut off excess tubing.
DRAIN TRAP AND LINES
In horizontal applications the condensate drain trap is secured to the furnace side panel, suspending it below the furnace. A minimum
clearance of 5 ½” 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. Refer to Condensate Drain T rap and Lines for further details. If the drain trap
and drain line will be exposed to temperatures near or below freezing, adequate measures must be taken to prevent condensate from
freezing.
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 have a slight tilt from back to front with the access doors
downhill from the back panel approximately 1/2 to 3/4 inches. The slight tilt allows the heat exchanger condensate, generated in
the recuperator coil, to flow forward to the recuperator coil front cover .
ALTERNATE VENT/FLUE AND COMBUSTION AIR CONNECTIONS
In horizontal installations provisions for alternate flue and combustion air piping are available for upflow furnaces with left discharge
and counterflow furnaces with right air discharge. This configuration allows the flue and combustion air piping to be run vertically
through the side of the furnace. Refer to the “R ecommended Installation Positions” figure for further detail. The standard piping
connections may also be used in these positions. Refer to Vent/Flue Pipe and Combustion Air Pipe for details concerning the
conversion to the alternate vent/flue and combustion air connections.
10
When using the horizontal alternate vent configuration, you must use the RF000142 vent drain kit. See following illustration.
Figure 3B
Alternate Vent/Flue Location
Figure 3A
ALTERNATE ELECTRICAL AND GAS LINE CONNECTIONS
Recommende d Installation Positions
Figure 3C
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.
DRAIN P AN
A drain pan must be provided if the furnace is installed above a conditioned area. The drain pan must cover the entire area under the
furnace (and air conditioning coil if applicable).
FREEZE PROTECTION
Refer to Horizontal Applications and Conditions - Drain T rap and Lines.
P
ROP ANE GAS/HIGH ALTITUDE INST ALLATIONS
WARNING
This furnace is shipped from the factory configured for natural gas
at standard altitude. Propane gas installations require an orifice
and 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/spring 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 7000 feet, please refer to the furnace Specification Sheets for required kit(s).
Contact the 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 safe and proper
furnace operation. All conversions must be performed by a qualified
installer , or service agency .
P
OSSIBLE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH MAY
OCCUR IF THE CORRECT CONVERSION KITS ARE NOT INSTALLED
APPROPRIATE KITS MUST BE APPLIED TO ENSURE SAFE AND PROPER
FURNACE OPERATION
QUALIFIED INSTALLER OR SERVICE AGENCY
Gas Altitude Kit Orifice
Natural None #45 3.5" w. c. 1.9" w.c. None
Propane
1
LPM-08* supp orts both Honeywell and W h ite-Rodgers 2-stage valves
NOTE: In Canada , gas furnaces are only certified to 4500 feet.
0-7000
. ALL
CONVERSIONS MUST BE PERFORMED BY A
.
Manifold Pressure
LP M -08*
1
High
Stage
1.25mm 1 0. 0" w.c. 6.0" w.c. None
Low
Stage
. THE
Pressure
Switch
Change
11
V
ENT/FLUE PIPE
& C
OMBUSTION AIR PIPE
WARNING
F
AILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN BODILY
INJURY OR DEATH
GIVEN IN THIS SECTION
. C
AREFULLY READ AND FOLLOW ALL INSTRUCTIONS
.
U
PON COMPLETION OF THE FURNACE INSTALLATION, CAREFULLY
INSPECT THE ENTIRE FLUE SYSTEM BOTH INSIDE AND OUTSIDE OF THE
FURNACE TO ASSURE IT IS PROPERL Y SEALED
SYSTEM CAN RESULT IN SERIOUS PERSONAL INJURY OR DEATH DUE TO
EXPOSURE TO FLUE PRODUCTS, INCLUDING CARBON MONOXIDE
WARNING
. L
EAKS IN THE FLUE
.
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.
In addition to PVC and ABS pipe and fittings, Innoflue® by Centrotherm Eco Systems and PolyP ro® by M&G Duravent are also
approved vent and combustion air materials for installations in the U.S.A. and Canada. Manufacturers Installation instructions for these products must be followed. These products have specific instructions for installing, joining and terminating.
Do not mix materials or components of one manufacturer with materials or components of another manufacturer.
All furnaces are built with 2" vent / intake pipe and connectors. For furnaces requiring installation of 3" pipe, the transition
from 2" to 3" should be done as close to the furnace as practically possible.
This furnace must not be connected to T ype 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 as described later in this section. Never 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 prevent flue pipe separation, shifting, or sagging during furnace
operation.
DUAL CERTIFICATION: NON-DIRECT/DIRECT VENT
This furnace is dual certified and may be installed as a non-direct vent (single pipe) or direct vent (dual pipe) appliance. A non-direct
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. Refer to the appropriate section for details concerning piping size, length, number of elbows, furnace connections, and
terminations.
MATERIALS AND JOINING METHODS
Two-three-inch 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.
TO
AVOID BODILY INJURY, FIRE OR EXPLOSION, SOLVENT CEMENTS
MUST BE KEPT AWAY FROM ALL IGNITION SOURCES (I.E
FLAMES, AND EXCESSIVE HEAT) AS THEY ARE COMBUSTIBLE LIQUIDS
VOID BREATHING CEMENT VAPORS OR CONTACT WITH SKIN AND/OR
A
EYES
.
The use of Schedule 40 PVC or ABS cellular core (Foam Core)
plastic pipe is also acceptable as a flue/vent and intake pipe material. 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 manufactures instructions for cutting, cleaning and solvent cementing of PVC.
For Canadian installations; all PVC pipe, fittings and joining materials must be UL S636 listed.
As an alternative to PVC pipe, primer, solvent cement, and fittings, ABS materials which are in compliance with the following
specifications may be used. Two-or-three-inch ABS Schedule 40 pipe must meet ASTM D1527 and, if used in Canada, must be CSA
listed. Solvent cement for ABS to ABS joints must meet ASTM D2235 and, if used in Canada, must be CSA listed. The solvent cement
for the PVC to ABS transition joint must meet ASTM D3138. Fittings must be DWV type fittings meeting ASTM D2661 and ASTM
D3311 and, if used in Canada, must be CSA listed. Carefully follow the manufacturers’ instructions for cutting, cleaning, and solvent
cementing PVC and/or ABS.
WARNING
.,
SPARKS, OPEN
.
12
All 90° elbows must be medium radius (1/4 bend DWV) or long radius (Long sweep 1/4 bend DWV) types conforming to ASTM D3311.
A medium radius (1/4 bend DWV) elbow measures 3 1/16” minimum from the plane of one opening to the center line of the other
opening for 2” diameter pipe, and 4 9/16” minimum for 3” pipe.
PROPER VENT/FLUE AND COMBUSTION AIR PIPING PRACTICES
Adhere to these instructions to ensure safe and proper furnace
performance. The length, diameter , and number of elbows of the
vent/flue pipe and combustion air pipe (when applicable) affects
the performance of the furnace and must be carefully sized. All
piping must be installed in accordance with local codes and these
instructions.
Some models require the use of 3” pipe. Do not transition
from a 2” to 3” pipe in a horizontal section of pipe as this
may create a water trap.
ACCEPTABLE
TRANSITION NO LESS
THAN 45 DEGREES TO
HORIZONTAL PLANE TO
AVOID CREATING A WATER
TRAP IN VENT PIPING.
PREFERRED
Figure 4
NO TRANSITION ON
HORIZONTAL PLANE,
THIS CREATES A
WATER TRAP AND
RESTRICTS FLUE
GASES
Figure 5
Piping must be adequately secured and supported to pro-
Figure 6
hibit sagging, joint separation, and/or detachment from
the furnace. Horizontal runs of vent/flue piping must be
supported every three to five feet and must maintain a 1/4 inch per foot downward slope, back towards the furnace, to properly
return condensate to the furnace’s drain system. Allowances should be made for minor expansion and contraction due to temperature
variations. For this reason, particular care must be taken to secure piping when a long run is followed by a short offset of less than
40 inches.
Precautions should be taken to prevent condensate from freezing inside the vent/flue pipe and/or at the vent/flue pipe termination.
All vent/flue piping exposed to freezing temperatures below 35°F for extended periods of time must be insulated with 1/2” thick
closed cell foam. Also all vent/flue piping exposed outdoors in excess of the terminations shown in this manual (or in unheated areas)
must be insulated with 1/2” thick closed cell foam. Inspect piping for leaks prior to installing insulation.
TERMINATION LOCATIONS
NOTE: Refer to Location Requirements and Considerations for combustion air contaminant restrictions.
The following bullets and diagram describe the restrictions concerning the appropriate location of vent/flue pipe and combustion air
intake pipe (when applicable) terminations. Refer to Non-Direct V ent (Single Pipe) Piping and Direct Vent (Dual Pipe) Piping located
in this section for specific details on termination construction.
• All terminations (flue and/or intake) must be located at least 12 inches above ground level or the anticipated snow level.
• Vent terminations (non-direct and direct vent) must terminate at least 3 feet above any forced air inlet located within 10
feet.
NOTE: This provision does not apply to the combustion air intake termination of a direct vent application.
• The vent termination of a non-direct vent application must terminate at least 4 feet below , 4 feet horizontally from, or 1 foot
above any door, window , or gravity air inlet into any building.
13
• The vent termination of a direct vent application must terminate at least 12 inches from any opening through which flue
gases may enter a building (door, window, or gravity air inlet).
• The vent termination of vent pipe run vertically through a roof must terminate at least 12 inches above the roof line (or the
anticipated snow level) and be at least 12 inches from any
vertical wall (including any anticipated snow build up).
• A vent termination shall not terminate over public walkways
or over an area where condensate or vapor could create a
nuisance or hazard or could be detrimental to the operation
of regulators, relief valves, or other equipment.
• The combustion air intake termination of a direct vent
application should not terminate in an area which is
Non-Dir ect Vent
&
Direct Vent
Vent/ F lue Terminations
Non-Direc t Vent
Vent/ F lue Termination
No T erminations
Above Walkway
frequently dusty or dirty .
4' min.
4'
NOTE: In Canada, the Canadian Fuel Gas Code takes precedence
over the preceding termination restrictions.
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,
ULC-S636 compliant two- or three-inch diameter PVC or ABS pipe,
solvent cement, and fittings throughout. The certified piping
Grade or Highest
Anticipated
Snow Level
Forced Air
Inlet
12" min.
12" min.
Direct Vent
Vent/Flue Termination
Vent Termination Clearances
Figure 7
min.
Non-Direct Vent
Vent/ F lue Termination
should be clearly marked with the ULC Std “S636” on the pipe and
fittings. Carefully follow the pipe manufacturers’ 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.
STANDARD FURNACE CONNECTIONS
It is the responsibility of the installer to ensure that the piping connections to the
furnace are secure, airtight, and adequately supported.
VENT/FLUE PIPE
The vent pipe outlet is sized to accept 2” pipe. Secure vent/flue pipe directly
into the furnace fitting with the appropriate glue. Alternately, a small section
of 2" pipe may be glued in the furnace socket and a rubber coupling installed to
allow removal for future service. Combustion Air and Vent piping should be
routed in a manner to avoid contact with refrigerant lines, metering devices,
condensate drain lines, etc. If necessary, clearances may be increased by
creating an offset using two 45 degree elbows. This joint can be rotated on the
fitting to establish maximum clearance between refrigerant lines, metering
devices, and condensate drain lines, etc. This joint is the equivalent of one 90
deg. elbow when considering elbow count. (See Figure 9A)
NOTE: For non-direct 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
45 DEGREE
LONG-SWEEP
ELBOWS
Increased Clearance Config uration
Figure 9A
VENT-DRAIN
DIRECT VENT INSTALLATIONS
On upflow units secure the combustion air intake pipe to the air intake coupling by using a
take apart rubber coupling supplied with the furnace or a plastic coupling. Also, the
intake coupling may be inverted to allow the intake pipe to be glued directly to it. After
inverting the coupling, secure it to the furnace top with screws. On counterflow units
secure the combustion air intake pipe to the air intake coupling using the rubber coupling and
worm gear hose clamps provided with the unit. The counterflow rubber coupling allows service removal of air intake piping internal to the furnace blower compartment. The combustion air intake pipe can also be secured directly to the counterflow unit air intake pipe coupling.
Figure 9B
14
COMBUSTION AIR INT AKE OPTION: The RF000142 coupling can be secured directly to the furnace intake coupling if condensation is a concern. If the RF000142 is used on the combustion air inlet, it must be installed with the arrow pointing up. It
should be noted, the combustion air will actually be moving in a direction opposite of the arrow on the RF000142 coupling. It
must have a field supplied, trapped drain tube free-draining to proper condensate disposal location. A loop in the drain tube
can serve as a trap. The unused RF000142 drain fitting should be capped. (See Figure 9B)
NON-DIRECT VENT INSTALLATIONS
A minimum of one 90° elbow should be installed on the combustion
air intake “coupling” to guard against inadvertent blockage.
ALTERNATE VENT/FLUE LOCATION
The alternate vent/flue location is the large hole directly in line
with the induced draft blower outlet. T o use the alternate vent/flue
location refer to the following steps and the “Alternate Vent/Flue
Location” figure. To use an alternate vent location on a
counterflow / horizontal model, a special kit is required.
NOTE: In the horizontal left installation position, a means of
condensate collection must be provided to keep vent pipe condensate from entering the draft inducer housing. If the vent
drain elbow is eliminated from the installation, an RF000142
kit must be used.
E
DGES OF SHEET METAL HOLES MAY BE SHARP
PRECAUTION WHEN REMOVING HOLE PLUGS
Inse r t f l an g e. Cut 2 ½” lo n g .
WARNING
. USE
.
GLOVES AS A
RF000142
1. Remove the four screws from the vent pipe flange on top
the furnace.
2. R emove the internal elbow and vent pipe
3. Cut 2 1/2" from the flange .
4. R emove plastic plug in line with the inducer outlet
5. Install cut end of the flanged section and connect to inducer
with rubber coupling supplied with furnace.
Figu re 10
6. Install screws removed in step 1 securing flange to cabinet.
WARNING
THE
RUBBER ELBOW IS NOT DESIGNED TO SUPPORT A LOAD
RUBBER ELBOW 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
ALTERNATE COMBUSTION AIR PROVISION
(Upflow / Horizontal models only)
. W
HEN THE
,
-
,
E
R
E
H
T
U
C
Figure 11
Vent/Flue Pipe Cuts
When using the alternate venting location, either in a horizontal left side down installation or a vertical installation using down – venting, an alternate combustion air opening can be
used. A locating dimple is located on the right side of the furnace cabinet. The locating dimple is 1 7/8" measured from the
front edge of the cabinet in line with the knock out. To use the alternate combustion air location:
1. R emove screws and combustion air flange from cabinet.
2. Insert cabinet plug in unused combustion air hole.
3. Drill a pilot hole at the cabinet dimple (size dictated by knockout tool used).
4. Use a knockout tool to create a 3" diameter hole
5. Install combustion air flange and secure with screws removed in step one.
15
NON-DIRECT VENT (SINGLE PIPE) PIPING
Non-direct 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
BE
SURE NOT TO DAMAGE INTERNAL WIRING OR OTHER COMPONENTS
WHEN REINSTALLING COUPLING AND SCREWS
CAUTION
.
building. The vent can also be run through an existing unused
chimney; however , it must extend a minimum of 12 inches above the top of the chimney. The space between the vent pipe and the
chimney must be closed with a weather-tight, corrosion-resistant flashing.
Although non-direct 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.
VENT/FLUE PIPE LENGTHS AND DIAMETERS
NOTE: If either a 90 degree or 45 degree elbow is used for termination, it must be pointed downward.
Refer to the following table for applicable length, elbows, and pipe diameter for construction of the vent/flue pipe system of a nondirect vent installation. In addition to the vent/flue pipe, a single 90° elbow should be secured to the combustion air intake to prevent
inadvertent blockage. The tee used in the vent/flue termination must be included when determining the number of elbows in the
piping system.
1) Maximum allowable limits listed on individual lengths for
inlet and flue and NOT a combination.
2) Minimum requirement for each vent pipe is five (5) feet
in length and one elbow/tee.
3) Tee used in the vent/flue termination must be included
when determining the number of elbows in the piping system
4) 2 1/2” or 3” diameter pipe can be used in place of 2”
diameter pipe.
5) Increased Clearance Configurations using (2) 45 deg.
Long Sweep elbows should be considered equivalent to one
90 deg. elbow .
6) One 90° elbow should be secured to the combustion air
intake connection.
VENT/FLUE PIPE TERMINATIONS
NOTE: If either a 90 degree or 45 degree elbow is used for
termination, it must be pointed downward.
The vent/flue pipe may terminate vertically , as through a roof,
or horizontally , as through an outside wall.
*M 9 6VC/*C 96 VC Di rect V ent (2 - Pipe) and Non-Di rect V e n t (1- Pip e )
MODEL
DM96VC0403BN
DM96VC0603BN
DM96VC0803BN
DM96VC0804CN
DM96VC1005CN
DM96VC1205DN
DC96VC0403BN
DC96VC0603BN
DC96VC0804CN
DC96VC1005CN
DC96VC1205DN
Maximum Allowable Length of Vent/Flue Pipe
& Combustion Air Pipe (ft)
Pipe Size
(4)
(in.)
12345678
2 120 115 110 105 100 95 90 85
3 134 127 120 113 106 99 92 85
2 100 95 90 85 80 75 70 65
3 151 144 137 130 123 116 109 102
2 4540353025201510
3 113106999285787164
2 706560555045N/AN/A
3 8982756861544740
2 N/AN/AN/AN/AN/AN/AN/AN/A
3 120 113 106 99 92 85 78 71
2 N/AN/AN/AN/AN/AN/AN/AN/A
3 151 144 137 130 123 116 109 102
2 120 115 110 105 100 95 N/A N/A
3 185 178 171 164 157 150 143 136
2 8580757065605550
3 168 161 154 147 140 133 126 119
2 40353025201510 5
3 120 113 106 99 92 85 78 71
2 N/AN/AN/AN/AN/AN/AN/AN/A
3 113106999285787164
2 N/AN/AN/AN/AN/AN/AN/AN/A
3 151 144 137 130 123 116 109 102
(1) (2)
Number of Elbows
(3) (5)
(6)
V ertical vent/flue pipe terminations should be as shown in the
following figure. Refer to V ent/Flue Pipe and Combustion Air Pipe - T ermination Locations for details concerning location restrictions.
The penetration of the vent through the roof must be sealed tight with proper flashing such as is used with a plastic plumbing vent.
Horizontal vent/flue pipe terminations should be as shown in the following figure. Refer to V ent/Flue Pipe and Combustion Air Pipe.
T o secure the pipe passing through the wall and prohibit damage to piping connections, a coupling should be installed on either side
of the wall and solvent cemented to a length of pipe connecting the two 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.
16
DO WN V E N TING UP F LOW MO DEL FU R N A C ES ONLY
Use alternat e vent
& combination air locations
Ven t Pipe
r
o
o
l
F
Combustion Air Pipe
Field Supplied
Drain Tee on Vent Pipe
e
c
a
p
s
l
w
a
r
C
/
t
n
e
m
e
s
a
B
All piping and fit tings must be joined per material manufacturer’s specifications
to prevent separation and flue gas leaks.
Condensate trapped
to prevent flue gas from escaping
and routed to field supplied
condensate disposal
Both Pipes Terminated
Outside Structur e
1/4” per foot min. slope
6’ MAX.
Figure 12
NOTE: T erminate both pipes in the same pressure zone (same side of roof, no major obstacles between pipes, etc.).
COMBUSTION AIR INT AKE
(OPTIONAL)
*Not re quired for
single pipe installation
E
N
I
L
F
O
O
R
12” MIN TO ROOF OR HIGHEST
ANTICIPATED SNOW LEVEL
Figures 13
TEE (OPTIONAL)
12” MIN
HEIGHT DIFFERENCE
BETWEEN
INTAKE AND VENT
”
3
-
.
X
A
M
”
6
9
ELBOWS
STRAIGHT
.
N
I
M
17
Figure 14
DIRECT VENT (DUAL PIPE) PIPING
V
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 inches 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.
Refer to Vent/Flue and Combustion Air Pipe - Termination Locations or
Concentric Vent Termination for specific details on termination construction. For details concerning connection of pipes to the furnace, refer to the
Vent/Flue Pipe and Combustion Pipe - Standard Furnace Connections or
Alternate Furnace Connections.
VENT/FLUE & COMBUSTION AIR PIPE LENGTHS & DIAMETERS
Refer to the following table 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 & 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” thick closed cell foam
insulation such as Armaflex™ or Insultube™ where required.
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.
12" MIN.
ENT/ FLUE TEE (
90° ELBOW TURNED
12" MIN. ABOVE
HIGHEST ANTICIPATED
SNOW LEVEL
OPTIONAL)
or
45° ELBOW
TURNE D DOWN or
DOW N
Horizontal Termination (Single Pipe)
Above Highest Anticipated Snow Level
Figure 15
6” MAX
4” MIN
90º OR 45°
ELBOW
12" MIN. TO GRADE OR
HIGHEST ANTICIPA TED
SNOW LEVEL
Standard Horizontal Terminations (Dual Pipe)
Figure 16
Vertical pipe terminations should be as shown in the following figure. Refer to V ent/Flue Pipe and Combustion Pipe - T ermination
Locations for details concerning location restrictions. The penetrations through the roof must be sealed tight with proper flashing
such as is used with a plastic plumbing vent.
VENT & COMBUSTION AIR INTAKE MEASUREMENTS FOR STANDARD HORIZONTAL TERMINATIONS (DUAL PIPE)
Center to center = 10” min / 24” max.
Vertical separation: 0” - 24”
Vent termination from wall = 8” min / 12” max.
Combustion air intake from wall = 6” max.
90°
ELBOWS
90°
ELBOWS
3” - 24”
12" MIN. ABOVE
HIGHEST ANTICIPATED
SNOW LEVEL
Alternate Horiz ontal Vent Terminati on (D ua l Pipe )
Figure 17
Combustion Air Intake may also be snorkeled to obtain 12” min ground clearance.
Alternate Vent Termination Above Anticipated Snow Level
(Dual Pipe)
Figure 18
18
3”-24” BETWEEN PIPES
12" MIN. ABOVE
HIGHES T ANT ICI P A TE D
SNOW LEVEL
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