ICP F9MAC0601714A1, F9MAC0602120A2, F9MAC0801714A1, F9MAC0802120A2, F9MAC1002120A1 Installation Guide
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These instructions must be read and understood completely before attempting installation.
Safety Labeling and Signal Words
DANGER, WARNING, CAUTION, and NOTE
The signal words DANGER, WARNING,
CAUTION, and NOTE are used to identify levels of
hazard seriousness. The signal word DANGER is
only used on product labels to signify an immediate
hazard. The signal words WARNING, CAUTION,
and NOTE will be used on product labels and
throughout this manual and other manual that may
apply to the product.
DANGER - Immediate hazards which will result in
severe personal injury or death.
Signal Words in Manuals
The signal word WARNING is used throughout
this manual in the following manner:
The signal word CAUTION is used throughout
this manual in the following manner:
WARNING - Hazards or unsafe practices which
could result in severe personal injury or death.
CAUTION - Hazards or unsafe practices which
may result in minor personal injury or product or
property damage.
NOTE - Used to highlight suggestions which will
result in enhanced installation, reliability, or
operation.
TABLE OF CONTENTS
SAFETY CONSIDERATIONS .............................. 3
INTRODUCTION ......................................... 4
CODES AND STANDARDS ................................ 4
ELECTROSTATIC DISCHARGE (ESD) ...................... 5
DIMENSIONS ........................................... 6
LOCATION .............................................. 7
LOCATION RELATIVE TO COOLING EQUIPMENT ........... 8
AIR FOR COMBUSTION AND VENTILATION ................ 8
CONDENSATE TRAP .................................... 11
INSTALLATION .......................................... 18
UPFLOW INSTALLATION ................................. 18
DOWNFLOW INSTALLATION .............................. 19
HORIZONTAL INSTALLATION ............................. 21
FILTER ARRANGEMENT ................................. 23
AIR DUCTS ............................................. 26
GAS PIPING ............................................. 27
ELECTRICAL CONNECTIONS ............................. 28
J-BOX INSTALLATION ................................... 29
VENTING ............................................... 33
SPECIAL VENTING REQUIREMENTS
FOR INSTALLATIONS IN CANADA ........................ 33
DIRECT VENT / 2-PIPE SYSTEM .......................... 35
VENTILATED COMBUSTION AIR SYSTEMS ................ 35
TERMINATION REQUIREMENTS FOR THE
PROVINCES OF ALBERTA AND SASKATCHEWAN ......... 37
MAXIMUM EQUIVALENT VENT LENTH ..................... 50
MAXIMUM ALLOWABLE EXPOSED VENT LENGTHS ........ 53
MAXIMUM LENGTH OF UNINSULATED AND INSULATED .... 53
Signal Words on Product Labeling
Signal words are used in combination with
colors and/or pictures or product labels.
z_ Safety-alert symbol
When you see this symbol on the unit and in
instructions or manuals, be alert to the
potential for personal injury.
IS09001
Use of the AHRI Certified TM Mark indicates a
manufacturer's participation in the program,
For verification of certification for individual
products, go to www,ahridirectory.org .
INSTALLER: Affix these instructions on or adjacent to the
furnace.
CONSUMER: Retain these instructions for future
reference.
Portions of the text and tables are reprinted from NFPA 54/ANSI Z223.1-2009_, with permission of National Fire Protection Association, Quincy, MA 02269 and American Gas Association, Washington, DC
20001. This reprinted material is not the complete and official position of the NFPA or ANSI, on the referenced subject, which is represented only by the standard in its entirety,
PrintedinU.S.A. 440 01 4201 03 July2012
Required Notice for Massachusetts Installations
Important
The Commonwealth of Massachusetts requires compliance with regulation 248 CMR as follows:
5.08: Modifications to NFPA-54, Chapter 10
2) Revise 10.8.3 by adding the following additional requirements:
(a)
For all side wall horizontally vented gas fueled equipment installed in every dwelling, building or structure used in whole or in part for residential
purposes, including those owned or operated by the Commonwealth and where the side wall exhaust vent termination is less than seven (7) feet
above finished grade in the area of the venting, including but not limited to decks and porches, the following requirements shall be satisfied:
1,
INSTALLATION OF CARBON MONOXIDE DETECTORS. At the time of installation of the side wall horizontal vented gas fueled equipment, the
installing plumber or gasfitter shall observe that a hard wired carbon monoxide detector with an alarm and battery back-up is installed on the floor
level where the gas equipment is to be installed. In addition, the installing plumber or gasfitter shall observe that a battery operated or hard wired
carbon monoxide detector with an alarm is installed on each additional level of the dwelling, building or structure served by the side wall
horizontal vented gas fueled equipment. It shall be the responsibility of the property owner to secure the services of qualified license professionals
for the installation of hard wired carbon monoxide detectors.
a. In the event that the side wall horizontally vented gas fueled equipment is installed in a crawl space or an attic, the hard wired carbon
monoxide detector with alarm and battery back-up may be installed on the next adjacent floor level.
b. In the event that the requirements of this subdivision can not be met at the time of completion of installation, the owner shall have a period of
thirty (30) days to comply with the above requirement; provided, however, that during said thirty (30) day period, a battery operated carbon
monoxide detector with an alarm shall be installed.
2. APPROVED CARBON MONOXIDE DETECTORS. Each carbon monoxide detector as required in accordance with the above provisions shall
comply with NFPA 720 and be ANSI/UL 2034 listed and IAS certified.
3. SIGNAGE. A metal or plastic identification plate shall be permanently mounted to the exterior of the building at a minimum height of eight (8) feet
above grade directly in line with the exhaust vent terminal for the horizontally vented gas fueled heating appliance or equipment. The sign shall
read, in print size no less than one-half (1/2) inch in size, "GAS VENT DIRECTLY BELOW. KEEP CLEAR OF ALL OBSTRUCTIONS".
4. INSPECTION. The state of local gas inspector of the side wall horizontally vented gas fueled equipment shall not approve the installation unless,
upon inspection, the inspector observes carbon monoxide detectors and signage installed in accordance with the provisions of 248 CMR
5.08(2)(a) 1 through 4.
(b) EXEMPTIONS: The following equipment is exempt from 248 CMR 5.08(2)(a) 1 through 4:
1. The equipment listed in Chapter 10 entitled "Equipment Not Required To Be Vented" in the most current edition of NFPA 54 as adopted by the
Board; and
2. Product Approved side wall horizontally vented gas fueled equipment installed in a room or structure separate from the dwelling, building or
structure used in whole or in part for residential purposes.
(c)
MANUFACTURER REQUIREMENTS - GAS EQUIPMENT VENTING SYSTEM PROVIDED. When the manufacturer of Product Approved side wall
horizontally vented gas equipment provides a venting system design or venting system components with the equipment, the instructions provided by
the manufacturer for installation of the equipment and the venting system shall include:
1. Detailed instructions for the installation of the venting system design or the venting system components; and
2. A complete parts list for the venting system design or venting system.
(d)
MANUFACTURER REQUIREMENTS - GAS EQUIPMENT VENTING SYSTEM NOT PROVIDED. When the manufacturer of a Product Approved side
wall horizontally vented gas fueled equipment does not provide the parts for venting the flue gases, but identifies "special venting systems", the
following requirements shall be satisfied by the manufacturer:
1. The referenced "special venting system" instructions shall be included with the appliance or equipment installation instructions; and
2. The "special venting systems" shall be Product Approved by the Board, and the instructions for that system shall include a parts list and detailed
installation instructions.
(e)
A copy of all installation instructions for all Product Approved side wall horizontally vented gas fueled equipment, all venting instructions, all parts lists
for venting instructions, and/or all venting design instructions shall remain with the appliance or equipment at the completion of the installation.
For questions regarding these requirements, please contact the Commonwealth of Massachusetts Board of State Examiners of Plumbers and Gas
Fitters, 239 Causeway Street, Boston, MA 02114. 617-727-9952
2 Specifications are subject to change without notice. 440 01 4201 0,3
Rarefy Considerations Read these instructions thoroughly and follow all warnings or
v = _=y
cautions included in literature and attached to the unit.
FIRE, EXPLOSION, ELECTRICAL SHOCK, AND CARBON
MONOXIDE POISONING HAZARD
Failure to follow this warning could result in dangerous
operation, personal injury, death, or property damage.
Improper installation, adjustment, alteration, service,
maintenance, or use can cause carbon monoxide poisoning,
explosion, fire, electrical shock, or other conditions which
may cause personal injury or property damage. Consult a
qualified service agency, local gas supplier, or your distributor
or branch for information or assistance. The qualified service
agency must use only factory-authorized and listed kits or
accessories when modifying this product.
FIRE HAZARD
Failure to follow this warning could result in personal injury,
death, or property damage.
Solvent cements and primers are combustible. Keep away
from heat, sparks and open flame. Use only in well-ventilated
areas. Avoid breathing in vapor or allowing contact with skin
or eyes.
FURNACE RELIABILITY HAZARD
Failure to follow this caution may result in unit component
damage.
Application of this furnace should be indoors with special
attention given to vent sizing and material, gas input rate, air
temperature rise, unit leveling, and unit sizing.
Improper installation, adjustment, alteration, service,
maintenance, or use can cause explosion, fire, electrical shock,
or other conditions which may cause death, personal injury or
property damage. Consult a qualified installer, service agency,
local gas supplier, or your distributor or branch for information
or assistance. The qualified installer or agency must use only
factory-authorized kits or accessories when modifying this
product. Refer to the individual instructions packaged with the
kits or accessories when installing.
Installing and servicing heating equipment can be hazardous
due to gas and electrical components. Only trained and
qualified personnel should install, repair, or service
heating equipment. Untrained personnel can perform basic
maintenance functions such as cleaning and replacing air
filters. All other operations must be performed by trained
service personnel. When working on heating equipment,
observe precautions in literature, on tags, and on labels
attached to or shipped with furnace and other safety
precautions that may apply.
These instructions cover minimum requirements and conform
to existing national standards and safety codes. In some
instances, these instructions exceed certain local codes and
ordinances, especially those that may not have kept up with
changing residential construction practices. We require these
instructions as a minimum for a safe installation.
Follow all safety codes. Wear safety glasses, protective
clothing, and work gloves. Have a fire extinguisher available.
CUT HAZARD
Failure to follow this caution may result in personal injury.
Sheet metal parts may have sharp edges or burrs. Use care
and wear appropriate protective clothing, safety glasses and
g oves when hand ing parts, and servicing furnaces.
This is the safety-alert symbol /iX •When you see this symbol
on the furnace and in instructions or manuals, be alert to the
potential for personal injury.
Understand the signal words DANGER, WARNING, and
CAUTION. These words are used with the safety-alert symbol.
DANGER identifies the most serious hazards which will result
in severe personal injury or death. WARNING signifies a
hazard which could result in personal injury or death.
CAUTION is used to identify hazards which may result in minor
personal injury or product and property damage. NOTE and
NOTICE are used to highlight suggestions which wilt result in
enhanced installation, reliability, or operation.
1. Use only with type of gas approved for this furnace.
Refer to the furnace rating plate.
2. Install this furnace only in a location and position as
specified in the "Location" section of these instructions.
3. Provide adequate combustion and ventilation air to the
furnace space as specified in "Air for Combustion and
Ventilation" section.
4. Combustion products must be discharged outdoors.
Connect this furnace to an approved vent system only,
as specified in the "Venting" section of these
instructions.
5. Never test for gas leaks with an open flame. Use a
commercially available soap solution made specifically
for the detection of leaks to check all connections, as
specified in the "Gas Piping" section.
6. Always install furnace to operate within the furnace's
intended temperature-rise range with a duct system
which has an external static pressure within the
allowable range, as specified in the "Start-Up,
Adjustments, and Safety Check" section. See furnace
rating plate.
7. 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.
See "Air Ducts" section.
8. A gas-fired furnace for installation in a residential
garage must be installed as specified in the warning box
in the "Location" section. (See Figure 4)
9. The furnace may be used for construction heat provided
that the furnace installation and operation complies with
the first CAUTION in the LOCATION section on page 7
of these instructions.
10. These Multipoise Gas-Fired Furnaces are CSA
design-certified for use with natural and propane gases
(see furnace rating plate) and for installation in alcoves,
attics, basements, closets, utility rooms, crawlspaces,
and garages. The furnace is factory-shipped for use
with natural gas. A CSA (A.G.A. and C.G.A.) listed
accessory gas conversion kit is required to convert
furnace for use with propane gas.
11. See Table 1 for required clearances to combustible
construction.
12. Maintain a 1-in. (25 mm) clearance from combustible
materials to supply air ductwork for a distance of 36-in.
440 01 4201 03 Specifications subject to change without notice. 3
(914 mm) horizontally from the furnace. See NFPA 90B
or local code for further requirements. Figure 1
Table 1
POSITION
REAR 0
FRONT (Combustion air openings in fur-
nace and in structure)
Required for service *24 (610)
All Sides of Supply Plenum "1 (25)
Sides 0
Vent 0
Top of Furnace 1 (25)
* Consult your local building codes.
13.
These furnaces SHALL NOT be installed directly on
carpeting, combustible tile, or any other combustible
material other than wood flooring. In downfiow
installations, factory accessory floor base MUST be
used when installed on combustible materials and wood
flooring. Special base is not required when this furnace
is installed on manufacturer's Coil Assembly is used.
See Table 1 for clearance to combustible construction
information.
Minimum Clearances to
Combustible Materials for All Units
CLEARANCE
In(mm)
1 (25)
Introduction
The 4-way multipoise Category IV condensing furnace is CSA
design-certified as a direct-vent (2-pipe) and ventilated
combustion air venting installations. (See Figure3) The
furnace is factory-shipped for use with natural gas. The
furnace can be converted in the field for use with propane gas
when a factory-supplied conversion kit is used. Refer to the
furnace rating plate for conversion kit information.
This furnace is not approved for installation in mobile homes,
recreational vehicles, or outdoors.
This furnace is designed for minimum continuous return-air
temperature of 60°F (15°C) db or intermittent operation down to
55°F (15°C) db such as when used with a night setback
thermostat. Return-air temperature must not exceed 80°F
(27°C) db. Failure to follow these return-air temperature limits
may affect reliability of heat exchangers, motors, and controls
(See Figure 1)
The furnace should be sized to provide 100 percent of the
design heating load requirement plus any margin that occurs
because of furnace model size capacity increments. Heating
load estimates can be made using approved methods available
from Air Conditioning Contractors of America (Manual J);
American Society of Heating, Refrigerating, and
Air-Conditioning Engineers; or other approved engineering
methods. Excessive oversizing of the furnace could cause the
furnace and/or vent to fail prematurely.
For accessory installation details, refer to the applicable
instruction literature.
NOTE: Remove all shipping materials, parts assemblies and
literature before operating the furnace.
I Freeze Protection and Return Air
Temperature
_" SUPPLYAIR MAX 80°F/27°C
FRONT
MIN 60°F/16°C
i°F
32° F/0° C MINIMUM INSTALLED
AMBIENT OR FREEZE
PROTECTIONREQUIRED
J
Codes and Standards
Follow all national and local codes and standards in
addition to these instructions. The installation must comply
with regulations of the serving gas supplier, local building,
heating, plumbing, and other codes. In absence of local codes,
the installation must comply with the national codes listed
below and all authorities having jurisdiction.
In the United States and Canada, follow all codes and
standards for the following:
Safety
• US: National Fuel Gas Code (NFGC) NFPA
54-2009/ANSI Z223.1-2009 and the Installation
Standards, Warm Air Heating and Air Conditioning
Systems ANSI/NFPA 90B
• CANADA: National Standard of Canada, Natural Gas
and Propane Installation Code (NSCNGPIC)
CAN/CSA B149.1-2010
General Installation
• US: NFGC and the NFPA 90B. For copies, contact the
National Fire Protection Association Inc.,
Batterymarch Park, Quincy, MA 02269; or for only the
NFGC contact the American Gas Association, 400 N.
Capitol, N.W., Washington DO 20001.
• CANADA: NSCNGPIC. For a copy, contact Standard
Sales, CSA International, 178 Rexdale Boulevard,
Etobicoke (Toronto), Ontario, M9W 1R3, Canada.
Combustion and Ventilation Air
US: Section 9.3 of the NFPA54/ANSI Z223.1-2009,
Air for Combustion and Ventilation
CANADA: Part 8 of the CAN/CSA B149.1-2010,
Venting Systems and Air Supply for Appliances
A10490
4 Specifications subject to change without notice. 440 01 4201 03
Duct Systems
• US and CANADA: Air Conditioning Contractors
Association (ACCA) Manual D, Sheet Metal and Air
Conditioning Contractors National Association
(SMACNA), or American Society of Heating,
Refrigeration, and Air Conditioning Engineers (ASHRAE)
2005 Fundamentals Handbook Chapter 35.
Acoustical Lining and Fibrous Glass
Duct
• US and CANADA: current edition of SMACNA, NFPA
90B as tested by UL Standard 181 for Class I Rigid Air
Ducts
Gas Piping and Gas Pipe Pressure
Testing
• U.S.A.: NFPA 54/ANSI Z223.1-2009, NFGC; Chapters
5, 6, 7, and 8 and national plumbing codes.
• CANADA: CAN/CSA-B149.1-2010, Parts 4, 5, 6 and
9.
In the state of Massachusetts:
• This product must be installed by a licensed plumber or
gas fitter.
• When flexible connectors are used, the maximum
length shall not exceed 36-in. (914 mm).
• When lever type gas shutoffs are used they shall be
T-handle type.
• The use of copper tubing for gas piping is not
approved by the state of Massachusetts.
Electrical Connections
• U.S.A.: National Electrical Code (NEC) ANSI/NFPA
70-2011
• CANADA: Canadian Electrical Code CSA C22.1
Electrostatic Discharge (ESD)
Precautions Procedure
FURNACE RELIABILITY HAZARD
Failure to follow this caution may result in unit component
damage.
Electrostatic discharge can affect electronic components.
Take precautions during furnace installation and servicing to
3rotect the furnace electronic control. Precautions will pre-
vent electrostatic discharges from personnel and hand tools
which are held during the procedure. These precautions will
help to avoid exposing the control to electrostatic discharge
by putting the furnace, the control, and the person at the
same electrostatic potential.
1. Disconnect all power to the furnace. Multiple
disconnects may be required. DO NOT TOUCH THE
CONTROL OR ANY WIRE CONNECTED TO THE
CONTROL PRIOR TO DISCHARGING YOUR BODY'S
ELECTROSTATIC CHARGE TO GROUND.
2. Firmly touch the clean, unpainted, metal surface of the
furnace chassis which is close to the control. Tools held
in a person's hand during grounding will be satisfactorily
discharged.
3. After touching the chassis, you may proceed to service
the control or connecting wires as long as you do nothing
to recharge your body with static electricity (for example;
DO NOT move or shuffle your feet, do not touch
ungrounded objects, etc.).
4. If you touch ungrounded objects (and recharge your
body with static electricity), firmly touch a clean,
unpainted metal surface of the furnace again before
touching control or wires.
5. Use this procedure for installed and uninstatled
(ungrounded) furnaces.
6. Before removing a new control from its container,
discharge your body's electrostatic charge to ground to
protect the control from damage. If the control is to be
installed in a furnace, follow items 1 through 4 before
bringing the control or yourself in contact with the
furnace. Put all used and new controls into containers
before touching ungrounded objects.
7. An ESD service kit (available from commercial sources)
may also be used to prevent ESD damage.
Accessories
See Specification Sheets for a list of accessories for this
product.
Table 2
QUANTITY COMPONENT NAME
1 Air Intake Pipe Flange
1 Vent Pipe Flange
2 Coupling Flange Gaskets
10 Sharp Tip Screws (Vent and Inlet Flanges)
1 Vent Pipe Coupling
2 Vent Pipe Coupling Clamps
1 Rubber Drain Tube
4 Drain Tube Clamps
1 1/2" CPVC to 3/4" PVC Pipe Adapter
1 Gas Line Grommet
1 Junction Box Cover
1 Junction Box Base
1 Green Ground Screw
3 Blunt Tip Screws (Junction Box)
1 Thermostat Wire Grommet
Provided separately in furnace
1 IDrain Extension Tube - "Z" Pipe
Loose Parts Bag Contents
(shipped in blower compartment)
440 01 4201 03 Specifications subject to change without notice. 5
Figure 2 1Dimensions
>
SD5060-4
(F/G9MAC)
FURNACE SIZE OUTLET WIDTH
0601714 15-7/8 (403) 8 3/4 (222) 154 (69)
0602120 19-3/8 (492) 10 1/2 (267) 159 (72)
0801714 15-7/8 (403) 8 3/4 (222) 164 (74)
0802120 19-3/8 (492) 10 1/2 (267) 169 (77)
1002122 19-3/8 (492) 10 1/2 (267) 179 (80)
1202422 22-7/8 (581) 12 1/4 (311) 203 (91)
A
CABINET
WIDTH
17-1/2 (445)
21 (533)
17-1/2 (445)
21 (533)
21 (533)
24-1/2 (622)
BOTTOM
INLET WIDTH
16 (406)
19-1/2 (495)
16 (406)
19-1/2 (495)
19-1/2 (495)
23 (584)
DC
AIR INTAKE
SHIP WT.
LB (KG)
6 Specifications subject to change without notice. 440 01 4201 03
Location
PERSONAL INJURY AND/OR PROPERTY DAMAGE
HAZARD
Improper use or installation of this furnace may result in
3remature furnace component failure. This gas furnace may be
used for heating buildings under construction provided that:
-The furnace is permanently installed with all electrical wiring,
piping, venting and ducting installed according to these
installation instructions. A return air duct is provided, sealed to
the furnace casing, and terminated outside the space
containing the furnace. This prevents a negative pressure
condition as created by the circulating air blower, causing a
flame roltout and/or drawing combustion products into the
structure.
-The furnace is controlled by a thermostat. It may not be "hot
wired" to provide heat continuously to the structure without
thermostatic control.
-Clean outside air is provided for combustion. This is to
minimize the corrosive effects of adhesives, sealers and other
construction materials. It also prevents the entrainment of
drywall dust into combustion air, which can cause fouling and
plugging of furnace components.
-The temperature of the return air to the furnace is maintained
between 55°F (13°C) and 80°F (27°C), with no evening setback
or shutdown. The use of the furnace while the structure is under
construction is deemed to be intermittent operation per our
installation instructions.
-The air temperature rise is within the rated rise range on the
furnace rating plate, and the gas input rate has been set to the
nameplate value.
-The filters used to clean the circulating air during the
construction process must be either changed or thoroughly
cleaned prior to occupancy.
-The furnace, ductwork and filters are cleaned as necessary to
remove drywall dust and construction debris from atl HVAC
system components after construction is completed.
-Verify proper furnace operating conditions including ignition,
gas input rate, air temperature rise, and venting according to
these installation instructions.
General
These furnaces are shipped with materials to assist in proper
furnace installation. These materials are shipped in the main
blower compartment.
See Table 2 for loose parts bag contents.
This furnace must:
• be installed so the electrical components are protected
from water.
• not be installed directly on any combustible material other
than wood flooring (refer to SAFETY
CONSIDERATIONS).
be located close to the chimney orvent and attached to an
air distribution system. Refer to Air Ducts section.
be provided ample space for servicing and cleaning.
Always comply with minimum fire protection clearances
shown in Table 1 or on the furnace clearance to
combustible construction label.
CARBON MONOXIDE POISONING / COMPONENT
DAMAGE HAZARD
Failure to follow this warning could result in personal injury or
death and unit component damage.
Corrosive or contaminated air may cause failure of parts con-
taining flue gas, which could leak into the living space. Air for
combustion must not be contaminated by halogen compounds,
which include fluoride, chloride, bromide, and iodide. These
elements can corrode heat exchangers and shorten furnace
life. Air contaminants are found in aerosol sprays, detergents,
bleaches, cleaning solvents, salts, air fresheners, and other
household products. Do not installfurnace in a corrosive or con-
taminated atmosphere. Make sure all combustion and circulat-
ing air requirements are met, in addition to atl local codes and
ordinances.
The following types of furnace installations may require
OUTDOOR AIR for combustion due to chemical exposures:
• Commercial buildings
• Buildings with indoor pools
• Laundry rooms
• Hobby or craft rooms, and
• Chemical storage areas
If air is exposed to the following substances, it should not be
used for combustion air, and outdoor air may be required for
combustion:
• Permanent wave solutions
• Chlorinated waxes and cleaners
• Chlorine based swimming pool chemicals
• Water softening chemicals
• De-icing salts or chemicals
• Carbon tetrachloride
• Halogen type refrigerants
• Cleaning solvents (such as perchloroethylene)
• Printing inks, paint removers, varnishes, etc.
• Hydrochloric acid
• Cements and glues
• Antistatic fabric softeners for clothes dryers
• Masonry acid washing materials
All fuel-burning equipment must be supplied with air for fuel
combustion. Sufficient air must be provided to avoid negative
pressure in the equipment room or space. A positive seal must
be made between the furnace cabinet and the return-air duct
to prevent pulling air from the burner area.
440 01 4201 03 Specifications subject to change without notice. 7
Figure 3 1Multipoise Orientations
THE BLOWER IS LOCATED
TO THE RIGHT OF THE
BURNER SECTION,AND
CONDITIONEDAIR IS
DISCHARGEDTO THE LEFT.
AIRFLOW
0
THE BLOWER IS
LOCATEDBELOWTHE
BURNER SECTION,AND
CONDITIONED AIR IS
DISCHARGEDUPWARD.
I HORIZONTAL RIGHT1AF F_LCW
THE BLOWER IS
LOCATEDABOVE THE
BURNERSECTION,AND
CONDITIONED AIR IS
DISCHARGEDDOWNWARD. AIRFLOW
FIRE, INJURY OR DEATH HAZARD
Failure to follow this warning could result in personal injury,
death and/or property damage.
When the furnace is installed in a residential garage, the burn-
ers and ignition sources must be located at least 18-in. (457
mm) above the floor. The furnace must be located or protected
to avoid damage by vehicles. When the furnace is installed in
a public garage, airplane hangar, or other building having a haz-
ardous atmosphere, the furnace must be installed in accord-
ance with the NFPA 54/ANSI Z223.1-2009 or CAN/CSA
B149.1-2010. (See Figure 4)
Figure 4 1Installation in a Garage
THE BLOWER IS
LOCATED TO THE LEFT
OF THE BURNER SECTION,
AND CONDITIONED AIR IS
DISCHARGED TO THE RIGHT.
Figure 5 _Prohibited Installations
BACK POSITIONED
DOWNWARD
BACK POSITIONED
UPWARD
,d
L12F010
IR
RETURN
CUT IN
BACK
L12F011
Location Relative to Cooling
Equipment
The cooling coil must be installed parallel with, or on the
downstream side of the unit to avoid condensation in the heat
exchangers. When installed parallel with the furnace, dampers
18-1N. (457.2 mm)
MINIMUM TO BURNERS A93044
or other flow control must prevent chilled air from entering the
furnace. If the dampers are manually operated, they must be
equipped with means to prevent operation of either unit unless
the damper is in the full-heat or full-cool position.
Air for Combustion and
FIRE HAZARD
Failure to follow this warning could result in personal injury,
death and/or property damage.
Do not install the furnace on its back or hang furnace with con-
trol compartment facing downward. Safety control operation will
be adversely affected. Never connect return-air ducts to the
back of the furnace. (See Figure 5)
8 Specifications subject to change without notice. 440 01 4201 03
Ventilation
Introduction
Direct Vent (2-Pipe) Applications
When the furnace is installed as a direct vent (2-pipe) furnace,
no special provisions for air for combustion are required.
However, other gas appliances installed in the space with the
furnace may require outside air for combustion. Follow the
guidelines below to insure that other gas appliances have
sufficient air for combustion.
Ventilated Combustion Air Applications
When the furnace is installed using the ventilated combustion
air option, the attic or crawlspace must freely communicate with
the outdoor to provide sufficient air for combustion. The
combustion air pipe cannot be terminated in attics or
crawlspaces that use ventilation fans designed to operate
during the heating season. If ventilation fans are present in
these areas, the combustion air pipe must terminate outdoors
as a Direct Vent/2-Pipe system.
All air for combustion is piped directly to the furnace from a
space that is well ventilated with outdoor air (such as an attic,
crawlspace, or equipment closet) and the space iswell isolated
from the living space or garage. In addition, other gas
appliances installed in the space with the furnace may require
outside air for combustion. Follow the guidelines below to
insure that the roof or crawlspace walls have sufficient free
area to provide sufficient air for combustion and ventilation for
the furnaces. The guidelines below can be used to insure that
other gas appliances have sufficient air for combustion.
Provisions for adequate combustion, ventilation, and dilution air
must be provided in accordance with:
• U.S. Installations: Section 9.3 of the NFPA 54/ANSI
Z223.1-2009 , Air for Combustion and Ventilation and
applicable provisions of the local building codes.
• Canadian Installations: Part 8 of
CAN/CSA-B149.1-2010, Venting Systems and Air
Supply for Appliances and all authorities having
jurisdiction.
FURNACE CORROSION HAZARD
Failure to follow this caution may result in furnace damage.
Air for combustion must not be contaminated by halogen
compounds, which include fluoride, chloride, bromide, and
iodide. These elements can corrode heat exchangers and
shorten furnace life. Air contaminants are found in aerosol
sprays, detergents, bleaches, cleaning solvents, salts, air
fresheners, and other household products.
Figure 6 and Dilution for Outdoors
(305ram) 12" MAX
1 SQIN. _
PER 2000
BTUH*
lAir for Combustion, Ventilation,
TO
OUTDOORS
1
DUCTS
TO
OUTDOORS
1 SO IN.
PER 2000
BTUH* T
(305mm) 12" MAX
*Minimum dimensions of 3-in. (76mm)
NOTE: Use any of the following combinations of openings:
Figure 7
iiiil
CIRCULATING AIR DUCTS
A&B, C&D, D&E, F&G
I Combustion Air Pipe
Point elbow down towards
back of furnace
(305mm)
TO PER 4000
OUTDOORS BTUH*
I SQ IN,
SQ INI
1 SQ IN.
12_,X (305mrn)
PER
4000
BTUH*
cO
n-
O
O
rm
I--
O
SQ IN,
PER
4000
BTUH*
Lt2F012
CARBON MONOXIDE POISONING HAZARD
Failure to follow this warning could result in personal injury or
death.
The operation of exhaust fans, kitchen ventilation fans, clothes
dryers, attic exhaust fans or fireplaces could create a
NEGATIVE PRESSURE CONDITION at the furnace. Make-up
air MUST be provided for the ventilation devices, in addition to
that required by the furnace. Refer to the Carbon Monoxide
Poisoning Hazard warning in the venting section of these
instructions to determine if an adequate amount of make-up air
is available.
12" MINIMUM
256.0 mm
CASING SIDE ATTACHMENT
COMBUSTION AIR PIPE
(ATTIC, CRAWL SPACE, OR
EQUIPMENT CLOSET ONLY.
See AIR FOR COMBUSTION
AND VENTILATION Section)
TOP PLATE ATTACHMENT
COMBUSTION AIR PIPE
(ATTIC, CRAWL SPACE, OR
EQUIPMENT CLOSET ONLY.
See AIR FOR COMBUSTION
AND VENTILATION Section)
L12F014
440 01 4201 03 Specifications subject to change without notice. 9
Outdoor Combustion Air Method
1. Provide the space with sufficient air for proper
combustion, ventilation, and dilution of flue gases using
permanent horizontal or vertical duct(s) or opening(s)
directly communicating with the outdoors or spaces that
freely communicate with the outdoors.
2. Figure 6 illustrates how to provide TWO OUTDOOR
OPENINGS, one inlet and one outlet combustion and
ventilation air openings to the outdoors.
a. One opening MUST commence within 12-in.
(300 mm) of the ceiling and the second opening
MUST commence within 12-in. (300 mm) of the floor.
b. Size openings and ducts per Figure 6 and Table 3.
c. TWO HORIZONTAL DUCTS require 1 square inch
(25.4 square mm) of free area per 2,000 Btuh (1,100
mm2/kW) of combined input for all gas appliances in
the space per Figure 6 and Table 3.
d. TWO OPENINGS OR VERTICAL DUCTS require 1
square inch (25.4 square mm)of free area per 4,000
Btuh (550 mm2/kW) for combined input of all gas
appliances in the space per Figure 6 and Table 3.
3. ONE OUTDOOR OPENING requires:
a. 1 sq. in. (25.4 square mm)of free area per 3,000 Btuh
(734 mm2/kW) for combined input of all gas
appliances in the space per Table 3 and
b. Not less than the sum of the areas of all vent
connectors in the space.
The opening shall commence within 12-in. (300 mm) of the
ceiling. Appliances in the space shall have clearances of at
least 1-in. (25 mm) from the sides and back and 6-in. (150 mm)
from the front. The opening shall directly communicate with the
outdoors or shall communicate through a vertical or horizontal
duct to the outdoors or spaces (crawl or attic) that freely
communicate with the outdoors.
Table 3 Minimum Free Area Required for Each Combustion Air Opening or Duct to Outdoors
TWO HORIZONTAL DUCTS SINGLE DUCT OR OPENING TWO OPENINGS OR
(1 SQ. IN./2,000 BTUH) (1 SQ. IN./3,000 BTUH)
VERTICAL DUCTS
FURNACE (1,100 SQ. MM/KW) (734 SQ. MM/KW) (1SQ. IN./4,000 BTUH)
INPUT (550 SQ. MM/KW)
(BTUH) Free Area of Duct Free Area of Open- Duct Free Area of Open- Round Duct
Round Round
Opening and Duct In. (mm) ing and Duct In. (mm) ing and Duct In. (mm)
Sq. In (Sq. mm) Dia Sq. In (Sq. mm) Dia Sq. In (mm) Dia.
60,000
80,000
100,000
120,000
140,000*
30 (19355) 6 (152) 20 (13043) 5 (127) 15 (9678) 5 (127)
40 (25807) 7 (178) 27 (17391) 6 (152) 20 (12904) 5 (127)
50 (32258) 8 (203) 34 (21739) 7 (178) 25 (16130) 6 (152)
60 (38709) 9 (229) 40 (26087) 7 (178) 30 (19355) 6 (152)
70 (45161) 10 (254) 47 (30435) 8 (203) 35 (22581) 7 (178)
EXAMPLE: Determining Free Area
FURNACE WATER HEATER TOTAL INPUT
100,000 + 30,000
60,000 + 40,000
80,000 + 30,000
= (130,000 divided by 4,000) = 32.5 Sq. In. for each two Vertical Ducts or Openings
= (100,000 divided by 3,000) = 33.3 Sq. In. for each Single Duct or Opening
= (110,000 divided by 2,000) = 55.0 Sq. In. for each two Horizontal Ducts
Table 4 Minimum Space Volumes for 100% Combustion, Ventilation and Dilution Air from Outdoors
OTHER THAN FAN-ASSISTEDTOTAL FAN-ASSISTEDTOTAL
(1,000'S BTUH GAS INPUT RATE) (1,000'S BTUH GAS INPUT RATE)
30 40 50 40 60 80 100 120 140
AOH Space Volume Ft3 (M3)
1,050 1,400 1,750 1,400 1,500 2,000 2,500 3,000 3,500
0.60 (29.7) (39.6) (49.5) (39.6) (42.5) (56.6) (70.8) (84.9) (99.1)
1,260 1,680 2,100 1,680 1,800 2,400 3,000 3,600 4,200
0.50 (35.6) (47.5) (59.4) (47.5) (51.0) (67.9) (84.9) (101.9) (118.9)
1,575 2,100 2,625 2,100 2,250 3,000 3,750 4,500 5,250
0.40 (44.5) (59.4) (74.3) (59.4) (63.7) (84.9) (106.1 ) (127.3) (148.6)
2,100 2,800 3,500 2,800 3,000 4,000 5,000 6,000 7,000
0.30 (59.4) (79.2) (99.1) (79.2) (84.9) (113.2) (141.5) (169.8) (198.1)
3,150 4,200 5,250 4,200 4,500 6,000 7,500 9,000 10,500
0.20 (89.1) (118.9) (148.6) (118.9) (127.3) (169.8) (212.2) (254.6) (297.1)
6,300 8,400 10,500 8,400 9,000 12,000 15,000 18,000 21,000
0.10 (178.0) (237.8) (297.3) (237.8) (254.6) (339.5) (424.4) (509.2) (594.1)
0.00 NP NP NP NP NP NP NP NP NP
NP = Not Permitted
10 specificationssubjectto change without notice. 440 01 4201 03
CONDENSATE TRAP
FROZEN AND BURST WATER PIPE HAZARD
Failure to protect against the risk of freezing may result in
property damage.
Special precautions MUST be made if installing furnace in an
area which may drop below freezing. This can cause improper
operation or damage to equipment. If furnace environment has
the potential of freezing, the drain trap and drain line must be
3rotected. The use of accessory drain trap heaters, electric
heat tape and/or RV antifreeze is recommended for these
installations.
PROPERY DAMAGE HAZARD
Failure to follow this caution may result in burst water pipes
and/or property damage.
If a condensate pump is installed, a plugged condensate drain
or a failed pump may cause the furnace to shut down. Do not
leave the home unattended during freezing weather without
turning off water supply and draining water pipes or otherwise
protecting against the risk of frozen pipes.
DO NOT trap the drain line in any other location than at the
condensate drain trap supplied with the furnace. If possible, DO
NOT route the drain line where it may freeze. The drain line
must terminate at an inside drain to prevent freezing of the
condensate and possible property damage.
Figure 8 |Upflow Trap Configuration
.L
Condensate Trap
Relief Port
Special precautions MUST be made if installing furnace in an
area which may drop below freezing. This can cause improper
operation or damage to the equipment. If the furnace
environment has the potential of freezing, the drain trap and
drain line must be protected. Use 3 to 6 watt per foot of 115
volt, 40° F (4° C) self-regulating shielded and water proof heat
tape. Wrap the drain trap and drain line with the heat tape and
secure with the ties. Follow the heat tape manufacturer's
recommendations. Prime the trap before furnace operation.
Condensate Trap - Upflow Orientation
When the furnace is installed in the upflow position, it is not
necessary to relocate the condensate trap or associated
tubing. See Figure 8 for upflow condensate trap information.
Refer to Condensate Drain section for information how to install
the condensate drain.
Condensate Trap - Downflow
Orientation
When the furnace is installed in the downflow position, the
condensate trap wilt be initially located at the upper left corner
of the collector box, as received from the factory. See the top
image in Figure g. When the furnace is installed in the
downflow orientation, the condensate trap must be relocated
for proper condensate drainage. See bottom image in Figure 9.
To Relocate the Condensate Trap:
• Orient the furnace in the downflow position.
• Figure 9 shows the condensate trap and tubing before and
after relocation. Refer to Figure 9 to begin the trap conversion.
• Refer to Condensate Drain section for information how to install
the condensate drain.
Vent Pipe Clamp
Vent Elbow Clamp
Plugs
Pressure Switch Outlet
Port
UPFLOW TRAP CONFIGURATION
MODULATING UN{TS
Representative drawing only, some models may vary in appearance.
Elbow
Collector Box
Plug
Sondensate Trap
Relief Port
Al1306
440 01 4201 03 specificationssubjectto change without notice. 11
Figure 9
Unconverted Factory Configuration as viewed in the Downflow Orientation
Remove relief tube from relief
on condensate trap.
(_ emove trap fromcollector box.
Loosen clamp on inlet
to vent elbow.
Install plugs on.
open ports on
collector box.
Connect relief tube
port on collector box.
Remove pressure switch tube from
pressure switch port.
Remove tube from
relief port.
__" (MODULATING UNITS)
Remove middle and bottom plugs.
DO NOT DISCARD.
Representative drawing only, some models may vary in appearance. A11585A
Downflow Trap Configuration
Trim excess tube.
Connect pressure switch
tube to port on collector
box.
Attach condensate trap
with screw to collector
box.
Rotate elbow to
desired position
tighten clamp to
15 lb.-in.
Slide tube in stand-offs
to adjust length.
(MODULATING UNITS)
Align condensate trap
over middle and bottom
ports of collector box.
Representative drawing only, some models may vary in appearance.
Connect relief tube to
relief port on condensate
trap.
A11585B
12 specificationssubjectto change without notice. 440 01 4201 03
Condensate Trap - Horizontal
Orientation
When the furnace is installed in the horizontal right position, the
condensate trap will be initially located at the bottom of the
collector box, as received from the factory. See the top image in
Figure 11. When the furnace is installed in the horizontal left
position, the condensate trap will be initially located at the top of
the collector box, as received from the factory. See the top image
in Figure 10. In both cases trap must be repositioned on the
collector box for proper condensate drainage. See bottom images
in Figure 10 and Figure 11.
A field-supplied, accessory Horizontal Installation Kit (trap
grommet) is required for all direct-vent horizontal installations
(only). The kit contains a rubber casing grommet designed to seal
between the furnace casing and the condensate trap. (See
Figure 17)
The field-supplied, accessory horizontal drain trap grommet
is ONLY REQUIRED FOR DIRECT VENT APPLICATIONS. It
is NOT required for applications using single-pipe or ventil-
ated combustion air venting.
NOTE: The condensate trap extends below the side of the
casing in the horizontal position. A minimum of 2 in. (51 mm) of
clearance is required between the casing side and the furnace
platform for the trap to extend out of the casing in the horizontal
position. Allow at least 1/4-in. (6 mm) per foot of slope away
from the furnace in horizontal sections of drain line.
To Relocate the Condensate Trap:
• Remove the knockout in the casing for the condensate trap.
• Install the grommet in the casing when required for direct-vent
horizontal applications.
• Orient the furnace in the desired position.
• Allow for 2 in. (51 mm) of clearance underneath the furnace for
the condensate trap and drain line.
• Figure 10 shows the condensate trap and tubing before and
after relocation in the horizontal right position.
• Figure 11 shows the condensate trap and tubing before and
after relocation in the horizontal left position.
• Refer to the appropriate figure to begin the trap conversion.
• Refer to Condensate Drain section for information how to install
the condensate drain.
The condensate trap extends below the side of the casing in
the horizontal position. A minimum of 2-in. (51 mm) of clear-
ance is required between the casing side and the furnace
31atform for the trap to extend out of the casing in the hori-
zontal position. Allow at least 1/4-in. per foot (20mm per
meter) of slope down and away from the furnace in horizontal
sections of drain line.
Figure 10
Unconverted Factory Configuration as viewed in the Horizontal Left Orientation
If alternate vent position
is required, loosen clamp Remove relief tube
on vent elbow inlet, from relief port on
Remove trap from
collector box.
condensate trap.
Remove pressure switch tube
from port on collector box.
©
Remove relief tube
from port on collector
box. Remove middle and right
plug from collector box.
(MODULATING UNITS) DO NOT DISCARD
Representative drawing only, some models mayvary in appearance.
A11586A
440 01 4201 03 Specificationssubjectto change without notice. 13
Figure 10 - continued Horizontal Left Trap Configuration
Install plugs in open
ports on collector box.
(_ otate elbow to
©
desired position and
torque clamp on inlet
15 lb.-in.
(_ Slide relief tube in
stand-offs to adjust
length.
(_ ttach condensate
trap to collector box
with screw.
Align trap over middle
and right-hand port on Connect relief tube to
collector box. relief port on condensate
(MODULATING UNITS) trap.
Representative drawing only, some models mayvary in appearance.
Connect relief tube to
port on collector box.
Trim excess tube.
Route pressure switch tube
underneath relief tube and
connect to port on collector box.
Figure 11 1Unconverted Factory Configuration as viewed in the Horizontal Right Orientation
A11586B
(_ Remove plug from
collector box.
DO NOT DISCARD.
If alternate vent position
is required, loosen clamp
on inlet of vent elbow.
Remove trap from
(MODULATING UNITS)
Representative drawing only, some models mayvary in appearance.
collector box.
14 specificationssubjectto change without notice. 440 01 4201 03
Figure 11 - continued Horizontal Right Trap Configuration
(_ ttach condensate trap
to collector box with
screw.
Slide relief tube in
stand-offs to adjust
length.
Vent elbow shown in alternate
orientation. Tighten clamp on
inlet to vent elbow 15 lb.-in.
(_ Install plug in open
Condensate Drain Connection
FROZEN AND BURST WATER PIPE HAZARD
Failure to protect against the risk of freezing may result in
property damage.
Special precautions MUST be made if installing furnace in an
area which may drop below freezing. This can cause improper
operation or damage to equipment. If furnace environment has
the potential of freezing, the drain trap and drain line must be
3rotected. The use of accessory drain trap heaters, electric
heat tape and/or RV antifreeze is recommended for these
installations.
PROPERY DAMAGE HAZARD
Failure to follow this caution may result in burst water pipes
and/or property damage.
If a condensate pump is installed, a plugged condensate drain
or a failed pump may cause the furnace to shut down. Do not
leave the home unattended during freezing weather without
turning off water supply and draining water pipes or otherwise
protecting against the risk of frozen pipes.
DO NOT trap the drain line in any other location than at the
condensate drain trap supplied with the furnace. If possible, DO
NOT route the drain line where it may freeze. The drain line
must terminate at an inside drain to prevent freezing of the
condensate and possible property damage.
Special precautions MUST be made if installing furnace in an
area which may drop below freezing. This can cause improper
operation or damage to the equipment. If the furnace
environment has the potential of freezing, the drain trap and
drain line must be protected. A self-regulating, shielded and
waterproof heat tape rated at 3 to 6 watt per foot (10 to 20 watt
per meter) at 115 volt, 40 ° F (4° C) may be used to help provide
freeze protection. Wrap the drain trap and drain line with the
440 01 4201 03 specificationssubjectto change without notice. 15
port on collector box.
(MODULATING UNITS)
Representative drawing only, some models may vary in appearance.
heat tape and secure with appropriate plastic ties. Follow the
heat tape manufacturer's recommendations. Prime the trap
before furnace operation.
Upflow/Downflow Orientation
In the Upflow or Downflow orientation, the condensate trap is
inside the furnace casing. The condensate drain must be
routed from the trap through the furnace casing. The
condensate drain can be routed through the left or right side of
the casing. (The left or right side is as you are viewing/facing
the furnace from the front.) The furnace condensate drain can
be connected to the indoor coil condensate drain, humidifier or
auxiliary drain traps as shown in Figure 12.
NOTE: On narrower casings, it may be easier to remove the
condensate trap, connect the drain line components and
re-install the condensate trap. Read the steps thoroughly to
familiarize yourself with the required steps.
For Right Side Condensate Drain:
1. Remove the 7/8-in. knock-out from the right side of the
casing. (See Figure 13 for suggested knockout removal
technique.)
2. Remove the pre-formed rubber drain tube and two
spring clamps from the loose parts bag.
3. Slide a spring clamp 1 in. (25 mm) down the plain end
(the end without the formed grommet) of the drain tube.
4. From inside the casing, insert the formed grommet end
of the elbow through the 7/8-in. knockout in the casing.
5. Pull the grommet through the casing from the outside
until it is seated in the knockout
6. Attach the plain end of the drain elbow to the outlet stub
on the drain trap. Secure the drain elbow to the trap with
the spring clamp.
The remaining drain line can be constructed from field supplied
1/2-in. CPVC or 3/4-in. PVC pipe in compliance with local
building codes. A factory-supplied 1/2-in. CPVC to 3/4-in PVC
adapter is supplied in the loose parts bag for use as required.
7. Install the adapter or connect the 1/2-in. CPVC pipe by
sliding a spring clamp over the open end of the grommet
on the outside of the furnace casing.
Align trap over middle and
right-hand port on collector box.
Al1281
8.Openthespringclampandinsertthelongendofthe
adapterofthe1/2-in.CPVCpipeintotheoutletstubon
thedraintube.
9.Connect additionalcondensatepiping to a
code-approveddrain,or to a condensatepump
approvedforusewithacidicfurnacecondensateand
compatiblewithmineralandvegetableoils,suchas
canolaoil.
Allowatleast1/4-in.perfoot(20mmpermeter)ofslopedown
andawayfromthefurnaceinhorizontalsectionsofdrainline.
Figure 12 I Example of Field Drain Attachment
1
OPEN STAND
PIPE FOR
A/C OR
HUMIDIFIER
DRAIN
U
_u=---TEE
TO OPEN
DRAIN
Al1276
TIPS FROM CONTRACTORS: Contractors have found that
temporarily removing the inducer assembly in upflow
applications while performing the steps below, makes upflow
left-side drain connections easier.
For Left Side Condensate Drain Connection:
1. For left side condensate drainage, the drain line is routed
from the condensate trap, behind the inducer (upflow) or
gas valve (downflow) and out through the left side of the
furnace casing. A pre-formed 1/2-in. CPVC "Z" pipe is
provided with the furnace. The "Z" pipe is long enough to
extend across the casing for drain connections.
2. Locate the "Z" pipe. Remove the pre-formed drain tube
and four spring clamps from the loose parts bag.
3. The "Z" pipe is connected to the condensate trap and the
outside of the furnace by modifying the formed rubber
drain tube as shown in Figure 14.
4. Remove the formed grommet from the rubber drain tube
by cutting the elbow along the vertical line located about
1 3/8-in. (35 mm) away from the formed grommet. See
Figure 13. DO NOT DISCARD THE FORMED
GROMMET OR THE RUBBER ELBOW. Both of these
pieces will be used.
Assemble and route the drain line to the opposite side of the
furnace as detailed below:
5. Remove the knock-out from the left side of the casing.
(See Figure 13 for suggested knockout removal
technique.)
6. From the outside of the casing, insert the angled end of
the "Z" pipe through drain hole in the left side of the
casing and behind the inducer or gas valve. Allow the "Z"
pipe to temporarily rest on the blower shelf (upflow) or
burner box (downfiow). (NOTE: When the inducer
housing has been removed to ease installation in upflow
applications, this step is not needed.)
7. After inserting the "Z" pipe through the casing, slide a
spring clamp over each end of the "Z" pipe.
8. From inside the casing, insert the short end of the formed
grommet cut from the rubber drain tube through the
7/8-in. drain knockout in the casing.
9. Pull the grommet through the casing from the outside
until it is seated in the knockout.
10. Align the "Z" pipe with the long end of the grommet inside
the furnace and insert slightly. The angled end of the
tube at the other side of the casing should be facing the
front of the furnace.
11. Slide a spring clamp over the end of the remaining
rubber drain tube.
12. Attach the drain tube to the angled end of "Z" pipe and
the drain trap outlet stub. Adjust the length of "Z" pipe
inserted into the grommet at the opposite side of the
furnace as necessary for proper fit and positioning. In
both upflow and downflow orientations, the "Z" pipe
should NOT be resting on any sheet metal parts.
13. Secure the rubber elbow to the drain trap and the "Z"
pipe with spring clamps.
14. Secure the grommet to the "Z" pipe with the spring
clamp.
The remaining drain line can be constructed from field supplied
1/2-in. CPVC or 3/4-in. PVC pipe, in compliance with local
building codes. A factory-supplied 1/2-in. CPVC to 3/4-in.
PVC adapter is supplied in the loose parts bag for use as
required.
15. Install the adapter or connect the 1/2-in. CPVC pipe by
sliding a spring clamp over the open end of the grommet
on the outside the furnace casing.
16. Open the spring clamp and insert the long end of the
adapter or the 1/2-in. CPVC pipe into the outlet stub on
the drain tube.
17. Connect additional condensate piping to a
code-approved drain, or to a condensate pump
approved for use with acidic furnace condensate and
compatible with mineral and vegetable oils, such as
canola oil.
Allow at least 1/4-in. per foot (20 mm per meter) of slope down
and away from the furnace in horizontal sections of drain line.
The field-supplied, accessory horizontal drain trap grommet
is ONLY REQUIRED FOR DIRECT VENT APPLICATIONS. It
is NOT required for applications using single-pipe or ventil-
ated combustion air venting.
TIPS FROM CONTRACTORS: When installing the furnace
horizontally, use the entire drain elbow (that is, do NOT cut as
shown in Figure 14) to connect the trap to the drain line. This
helps to prevent bumps and shocks to the drain line from
damaging the furnace drain trap. Avoid misatignment of the
drain pipe which may cause kinks in the elbow.
Horizontal Orientation
1. The condensate trap outlet extends 2-in. (51 mm) below
the furnace casing. Leave enough clearance between
the furnace and the furnace platform for the trap.
2. To allow for servicing the trap, the condensate drain
elbow in the loose parts bag can be used to make a
coupler to allow for future service of the condensate trap
and drain line.
16 specificationssubjectto change without notice. 440 01 4201 03
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