Trane AUD1B060A9H31B, TUD1A040A9H21B, TUD1B060A9H31B, AUD1B060G9H31A, TUD1B060G9H31A Installer's Manual
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18-CD21D1-12
Installer’s Guide
High Efficiency Single Stage Upflow/ Horizontal
and Downflow/ Horizontal Gas-Fired Furnaces,
“Fan Assisted Combustion System”
*UD1A040A9H21B
*UD1A040G9H21A
*UD1B060A9H31B
*UD1B060G9H31A
*UD1B080A9H31B
*UD1B080G9H31A
*UD1C080A9H41B
*UD1C080G9H41A
*__First letter may be “A” or “T”
ALL phases of this installation must comply with NATIONAL, STATE AND LOCAL CODES
IMPORTANT — This Document is customer property and is to remain with this unit.
Please return to service information pack upon completion of work.
For VENT SIZING INFORMATION see:
USA —
National Fuel Gas Code ................ ANSI Z223.1/NFPA 54 (latest version)
CANADA —
Natural Gas Installation Code ..............CAN/CGA-B149.1 (latest version)
Propane Installation Code ....................CAN/CGA-B149.2 (latest version)
USA/CANADA ALTERNATE —
Category I Venting Guide ......................................Pub. No. 18-CH23D1-2
*UD1B100A9H31B
*UD1B100G9H31A
*UD1C100A9H51B
*UD1C100G9H51A
*UD1D120A9H51B
*UD1D120G9H51A
*UD1D140A9H51B
*UD1D140G9H51A
*DD1B060A9H31B
*DD1B080A9H31B
*DD1C100A9H51B
*DD1D120A9H51B
*UD1-H
Upflow/ Horizontal* Downflow/ Horizontal*
*Horizontal Conversion for these furnaces may be left or right side rotation.
*DD1-H
A341789P07
Installer’s Guide
CARBON MONOXIDE POISONING HAZARD
Failure to follow the steps outlined below for each
appliance connected to the venting system being
placed into operation could result in carbon monoxide
poisoning or death.
The following steps shall be followed for each appliance
connected to the venting system being placed into
operation, while all other appliances connected to the
venting system are not in operation:
1. Seal any unused openings in the venting system.
2. Inspect the venting system for proper size and horizontal
pitch, as required in the National Fuel Gas Code,
ANSI Z223.1/NFPA 54 or the CAN/CGA B149
Installation Codes and these instructions. Determine
that there is no blockage or restriction, leakage,
corrosion and other deficiencies which could cause an
unsafe condition.
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 deficiencies which could cause an
unsafe condition.
4. Close fireplace dampers.
5. Turn on clothes dryers and any appliance not connected
to the venting system. Turn on any exhaust fans, such
as range hoods and bathroom exhausts, so they are
operating at maximum speed. Do not operate a summer
exhaust fan.
6.
Follow the lighting instructions. Place the appliance being inspected into operation. Adjust the thermostat so
appliance is operating continuously.
7. 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 Z221.1/NFPA 54 and/or CAN/CGA B149
Installation Codes.
8.
After it has been determined that each appliance
connected to the venting system properly vents where
tested as outlined above, return doors, windows, exhaust
fans, fireplace dampers and any other gas -fired burning
appliance to their previous conditions of use.
▲
WARNING
!
SAFETY SECTION
The following safety practices and precautions must be
followed during the installation, servicing, and operation of this furnace.
1. Use only with the 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 “Location and Clearances” (page 4),
of these instructions.
3. Provide adequate combustion and ventilation air to
the furnace space as specified in “Air for Combustion and Ventilation” (pages 8-9), of these instructions.
4. Combustion products must be discharged outdoors.
Connect this furnace to an approved vent system
only, as specified in the “Venting” section (pages
13-15), 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 “Gas Piping” (page 618), of
these instructions.
6. Always install the furnace to operate within the
7. When a furnace is installed so that supply ducts
8. A gas-fired furnace for installation in a residential
9. The furnace may be used for temporary heating
a. The furnace venting system must be complete
b. The furnace is controlled only by a room thermo-
c. The furnace return air duct must be complete
d. The furnace input rate and temperature rise
e. 100% of the furnace combustion air requirement
© 2013 Trane All Rights Reserved 18-CD21D1-12
furnace’s intended temperature-rise range with a
duct system which has an external static pressure
within the allowable range, as specified on the unit
rating plate. Airflow with temperature rise for cfm
versus static is shown in the Service Facts accompanying this furnace.
carry air circulated by the furnace to areas outside the space containing the furnace, the return
air shall also be handled by a duct(s) sealed to the
furnace casing and terminating outside the space
containing the furnace.
garage must be installed as specified in “Location
and Clearances” section (page 4), of these instructions.
of buildings or structures under construction only
when the following conditions have been met:
and installed per manufacturer’s instructions.
stat (no field jumpers).
and sealed to the furnace and clean air filters are
in place.
must be verified to be within nameplate marking.
must come from outside the structure.
f. The furnace return air temperature range is be-
tween 55 and 80 degrees Fahrenheit.
g. Clean the furnace, duct work, and components
upon substantial completion of the construction
process, and verify furnace operating conditions
including ignition, input rate, temperature rise
and venting, according to the manufacturer’s instructions.
10. This product must be gas piped by a Licensed
Plumber or Gas Fitter in the Commonwealth of
Massachusetts.
Installer’s Guide
▲
WARNING
!
▲
CAUTION
!
▲
WARNING
!
▲
CAUTION
!
Safety signal words are used to designate a degree
or level of seriousness associated with a particular
hazard. The signal words for safety markings are
WARNING, and CAUTION.
a. WARNING indicates a potentially hazardous situa-
tion which, if not avoided, could result in death or
serious injury.
b. CAUTION indicates a potentially hazardous situa-
tion which, if not avoided, may result in minor or
moderate injury. It is also used to alert against unsafe practices and hazards involving only property
damage.
FIRE OR EXPLOSION HAZARD
Failure to follow the safety warnings exactly could
result in serious injury, death or property damage.
Improper servicing could result in dangerous operation, serious injury, death, or property damage.
Contents
Installation Instructions 3
General Installation Instructions 4
Location and Clearances 4
Outline Drawing 5
Upflow Installation 7
Downflow Installation 7
Air For Combustion and Ventilation 8
Duct Connections 10
Return Air Filters 11
Typical Upflow Return Air Filter Installations 11
Alternate Upflow Filter Clip / Bracket Installation 13
Typical Downflow Furnace Return Air Filter Installations 13
General Venting Instructions 14
Venting Into a Masonry Chimney 15
Electrical Connections 16
Field Wiring Diagrams 17
Gas Piping 19
Sequence of Operation 19
Start Up and Adjustment 20
Preliminary Inspections 20
Combustion and Input Check 20
High Altitude Derate 21
Lighting Instructions 22
Control and Safety Switch Adjustment 23
Abnormal Conditions 23
IFC Error Flash Codes 24
To prevent shortening its service life, the furnace
should not be used as a “Construction Heater” during
the finishing phases of construction until the requirements listed in item 9, a-g of the safety section of this
publication have been met. Condensate in the presence of chlorides and fluorides from paint, varnish,
stains, adhesives, cleaning compounds, and cement
create a corrosive condition which may cause rapid deterioration of the heat exchanger.
These furnaces are not approved or intended for installation in manufactured (mobile) housing, trailers, or
recreational vehicles.
Failure to follow this warning could result in property
damage, personal injury, or death.
18-CD21D1-12 3
Do NOT install the furnace in a corrosive or contaminated atmosphere.
Installer’s Guide
GENERAL INSTALLATION INSTRUCTIONS
The manufacturer assumes no responsibility for equipment installed in violation of any code or regulation.
It is recommended that Manual J of the Air Conditioning Contractors Association (ACCA) or A.R.I. 230 be
followed in estimating heating requirements. When estimating heating requirements for installation at Altitudes above 2000 ft., remember the gas input must be
reduced (See GAS INPUT ADJUSTMENT).
Material in this shipment has been inspected at
the factory and released to the transportation
agency without known damage. Inspect exterior
of carton for evidence of rough handling in shipment. Unpack carefully after moving equipment
to approximate location. If damage to contents is
found, report the damage immediately to the delivering agency.
Codes and local utility requirements governing the
installation of gas fired equipment, wiring, plumbing, and flue connections must be adhered to. In the
absence of local codes, the installation must conform
with latest edition of the National Fuel Gas Code ANSI
Z223.1 • National Installation Code, CAN/CGA B149.1.
The latest code may be obtained from the American
Gas Association Laboratories, 400 N. Capitol St. NW,
Washington D.C. 20001.
1-800-699-9277 or www.aga.org
These furnaces have been classified as Fan Assisted
Combustion system CATEGORY I furnaces as re-
quired by ANSI Z21.47 “latest edition” and CAN/CGA
2.3. Therefore they do not require any special provisions for venting other than what is indicated in these
instructions. (Category I defined on page 14).
These furnaces may be twinned. They shall have
common returns with equal pressure drops or
ducts with equivalent lengths and sizes. See
Field Wiring Diagrams for Twinning on page 17
for proper hookup.
LOCATION AND CLEARANCES
The location of the furnace is normally selected by the
architect, the builder, or the installer. However, before
the furnace is moved into place, be sure to consider the
following requirements:
1. Is the location selected as near the chimney or vent
and as centralized for heat distribution as practical?
2. Do all clearances between the furnace and enclosure equal or exceed the minimums stated in
Clearance Table on the Outline Drawings.
3. Is there sufficient space for servicing the furnace
and other equipment? A minimum of 24 inches
front accessibility to the furnace must be provided.
Any access door or panel must permit removal of
the largest component.
4. Are there at least 3 inches of clearance between
the furnace combustion air openings in the front
panel and any closed panel or door provided?
5. Are the ventilation and combustion air openings
large enough and will they remain unobstructed?
If outside air is used, are the openings set above
the highest snow accumulation level? (See the Air
for Combustion and Ventilation section.)
6. Allow sufficient height in supply plenum above the
furnace to provide for cooling coil installation, if
the cooling coil is not installed at the time of this
furnace installation.
7. A furnace shall be installed so electrical components are protected from water.
8. If the furnace is installed in a residential garage,
it must be installed so that the burners, and the
ignition source are located not less than 18 inches
above the floor and the furnace must be located or
protected to avoid physical damage from vehicles.
4 18-CD21D1-12
Installer’s Guide
From Dwg. 21C341699 Sh. 1 Rev. 4
(ALL DIMENSIONS ARE IN INCHES)
*UD1-H OUTLINE DRAWING
MODEL DIM "A" DIM "B" DIM "C" DIM "D"
TUD1A040A9H21B, TUD1A040G9H21A 14-1/2" 9-5/8" 13-1/4" 13"
17-1/2" 9-5/8" 16-1/4" 16"
TUD1B060A9H31B, TUD1B060G9H31A
TUD1B080A9H31B, TUD1B080G9H31A
21" 13-1/16" 19-3/4" 19-1/2"
TUD1B100A9H31B, TUD1B100G9H31A
TUD1C080A9H41B, TUD1C080G9H41A
TUD1C100A9H51B, TUD1C100G9H51A
TUD1D120A9H51B, TUD1D120G9H51A
24-1/2" 15-5/16" 23-1/4" 23"
TUD1D140A9H51B, TUD1D140G9H51A
18-CD21D1-12
Installer’s Guide
From Dwg. 21C341700 Sh. 1 Rev. 0
(ALL DIMENSIONS ARE IN INCHES)
*DD1-HF OUTLINE DRAWING
6 18-CD21D1-12
Installer’s Guide
▲
WARNING
!
UPFLOW
FURNACE
CASED
COIL
SCREWS
(BOTH SIDES)
STANDOFFS
(BOTH SIDES)
STANDOFFS (4)
DRILL SCREWS (4)
UPFLOW INSTALLATION
Standoffs and screws (See Figure 1 on page 6) are included with the cased coils for attachment to the furnace. There are clearance alignment holes near the
bottom of the coil wrapper and drill screws are used to
engage the furnace top flange. The standoff is inserted
into the cabinet alignment hole. The drill screws are
inserted through the standoffs then screwed into the
furnace flange. The coil is always placed downstream
of the furnace airflow. These instructions apply only if
the coil is on top of an upflow furnace.
1
FOR VERTICAL
INSTALLATIONS:
REQUIRED FLOOR OPENING: (DOWNFLOW)
SEE FIGURE 3 AND TABLE 1
3
A (width)
FURNACE
FRONT
TABLE 1
CABINET
WIDTH
14-1/2" 13-1/4" 13-5/8" 20-1/8" 12-5/8" 19-3/8"
17-1/2" 16-1/4" 16-5/8" 20-1/8" 15-5/8" 19-3/8"
21" 19-3/4" 20-1/8" 20-1/8" 19-1/8" 19-3/8"
24-1/2" 23-1/4" 23-5/8" 20-1/8" 22-5/8" 19-3/8"
RETURN
DUCT WIDTH
FLOOR OPENING PLENUM OPENING
HORIZONTAL INSTALLATION
The coil and furnace must be fully supported when
used in the horizontal position.
Three brackets (with screws) are included with downflow furnaces for installation to stabilize and secure the
furnace and TXC cased coil in the horizontal posi-
tion. See Figure 4.
IMPORTANT:
The 2/4TXC cased coil must be placed downstream of the
furnace. In horizontal installations, the apex of the coil
may point either toward or away from the furnace. See the
2/4TXC coil Installer's Guide for more details.
The cased coil is secured to the furnace and both the
furnace and the cased coil must be properly supported.
B (depth)
D
C
"A" "B" "C" "D"
DOWNFLOW INSTALLATION
Do NOT install the furnace directly on carpeting, tile
or other combustible material other than wood flooring. For vertical downflow application, subbase (BAYBASE205) must be used between the furnace and
combustible flooring. When the downflow furnace is
installed vertically with a cased coil, a subbase is not
required.
2
18-CD21D1-12
4
CASED COIL CONNECTION
BRACKET FOR DOWNFLOW
FURNACE IN HORIZONTAL
The brackets mount using the rear screws on the coil
case and use the screws provided to secure the bracket to the furnace. The remaining bracket is placed as
close to center as possible (horizontally) between the
coil case front and the furnace bottom channel (for
downow/ horizontal furnace). Use four of the screws
provided to secure the bracket.
This furnace may be installed in an attic or crawl space
in the horizontal position by placing the furnace on the
left or right side (as viewed from the front in the upright position). The horizontal furnace installation in
an attic should be on a service platform large enough
to allow for proper clearances on all sides and service
access to the front of the furnace (See Clearance Table
on Outline Drawings and Figure 5).
If the furnace is suspended using perforated steel strap
(plumber’s strap), it must be supported at all four corners and in the middle at the front of the furnace. The
Installer’s Guide
forward most screw on the side of the furnace may be
used to connect the strapping (See Figure 6). Line contact is only permissible between lines formed by the
intersection of the top and two sides of the furnace casing and the building joists, studs, or framing.
A cutout is provided on both sides of the downflow furnace cabinet to allow a 90° elbow to be attached inside the cabinet and the vent piping to connect there.
7
UNCONFINED
50 CU. FT. OR MORE
PER 1000 BTU/ HR.
INPUT ALL EQUIP-
MENT INSTALLED
5
TYPICAL ATTIC PLATFORM INSTALLATION
(UPFLOW/HORIZONTAL FURNACE SHOWN)
In horizontal, the downflow furnace may be vented
through the top of the cabinet if needed. In vertical
configuration, the downflow furnace may be vented using the side cabinet cutouts. This venting configuration
could be used if an electronic air cleaner is installed.
When the downflow furnace is vented through
the left side of the furnace cabinet in horizontal
or vertical configuration, Type B vent pipe must
be used within the cabinet.
AIR FOR COMBUSTION AND VENTILATION
Adequate flow of combustion and ventilating air must
not be obstructed from reaching the furnace. Air openings provided in the furnace casing must be kept free
of obstructions which restrict the flow of air. Airflow
restrictions affect the efficiency and safe operation of
the furnace. Keep this in mind should you choose to
remodel or change the area which contains your furnace. Furnaces must have a free flow of air for proper
performance.
Provisions for combustion and ventilation air shall be
made in accordance with “latest edition” of Section 5.3,
Air for Combustion and Ventilation, of the National
Fuel Gas Code, ANSI Z223.1, or Sections 7.2, 7.3 or 7.4
of CAN/ CGA B149 Installation Codes, and applicable
provisions of the local building codes. Special conditions created by mechanical exhausting of air and fireplaces must be considered to avoid unsatisfactory furnace operation.
Furnace locations may be in “confined space” or “unconfined space”. Unconfined space is defined in Table 2 and
Figure 7. These spaces may have adequate air by infiltration to provide air for combustion, ventilation, and
dilution of ue gases. Buildings with tight construction (for example, weather stripping, heavily insulated,
caulked, vapor barrier, etc.), may need additional air
provided as described for confined space.
6
Typical Suspended Installation
(Upflow/Horizontal Furnace Shown)
8 18-CD21D1-12
8
Confined spaces are installations with less than 50 cu.
ft. of space per 1000 BTU/ hr input from all equipment
installed. Air for combustion and ventilation requirements can be supplied from inside the building as in
Figure 9 or from the outdoors, as in Figure 10.
CONFINED
LESS THAN 50 CU. FT.
PER 1000 BTU/ HR.
INPUT ALL EQUIP-
MENT INSTALLED
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