Odyssey BAYTFMR011 User manual

SAFETY WARNING
Only qualified personnel should install and service the equipment. The installation, starting up, and servicing
of heating, ventilating, and air-conditioning equipment can be hazardous and requires specific knowledge and
training. Improperly installed, adjusted or altered equipment by an unqualified person could result in death or
serious injury. When working on the equipment, observe all precautions in the literature and on the tags,
stickers, and labels that are attached to the equipment.
Transformer
Odyssey Air Handlers
6-12.5 Tons
Installation Instructions
Model Numbers Used With:
BAYTFMR011 TWE090D300/E300, TWE120D300/E300, TWE120E303/4, TWE150E303/4
BAYTFMR012 TWE090D300/E300, TWE120D300/E300, TWE120E403/4, TWE150E403/4,
TWE090DW00/EW00, TWE120DW00/EW00
BAYTFMR013 TWE076DD00/ED00, TWE101DD00/ED00
ACC-SVN121C-EN
February 2015

© 2015 Trane All rights reserved ACC-SVN121C-EN
Introduction
Read this manual thoroughly before operating or servicing
this unit.
Warnings, Cautions, and Notices
Safety advisories appear throughout this manual as
required. Your personal safety and the proper operation of
this machine depend upon the strict observance of these
precautions.
Important Environmental Concerns
Scientific research has shown that certain man-made
chemicals can affect the earth’s naturally occurring
stratospheric ozone layer when released to the
atmosphere. In particular, several of the identified
chemicals that may affect the ozone layer are refrigerants
that contain Chlorine, Fluorine and Carbon (CFCs) and
those containing Hydrogen, Chlorine, Fluorine and
Carbon (HCFCs). Not all refrigerants containing these
compounds have the same potential impact to the
environment. Trane advocates the responsible handling of
all refrigerants-including industry replacements for CFCs
such as HCFCs and HFCs.
Important Responsible Refrigerant
Practices
Trane believes that responsible refrigerant practices are
important to the environment, our customers, and the air
conditioning industry. All technicians who handle
refrigerants must be certified. The Federal Clean Air Act
(Section 608) sets forth the requirements for handling,
reclaiming, recovering and recycling of certain
refrigerants and the equipment that is used in these
service procedures. In addition, some states or
municipalities may have additional requirements that
must also be adhered to for responsible management of
refrigerants. Know the applicable laws and follow them.
Copyright
This document and the information in it are the property of
Trane, and may not be used or reproduced in whole or in
part without written permission. Trane reserves the right
to revise this publication at any time, and to make changes
to its content without obligation to notify any person of
such revision or change.
The three types of advisories are defined as follows:
WARNING Indicates a potentially hazardous
situation which, if not avoided, could
result in death or serious injury.
CAUTIONsIndicates a potentially hazardous
situation which, if not avoided, could
result in minor or moderate injury. It
could also be used to alert against
unsafe practices.
NOTICE Indicates a situation that could result in
equipment or property-damage only
accidents.
WARNING
Proper Field Wiring and Grounding
Required!
Failure to follow code could result in death or serious
injury. All field wiring MUST be performed by qualified
personnel. Improperly installed and grounded field
wiring poses FIRE and ELECTROCUTION hazards. To
avoid these hazards, you MUST follow requirements for
field wiring installation and grounding as described in
NEC and your local/state electrical codes.
WARNING
Personal Protective Equipment (PPE)
Required!
Installing/servicing this unit could result in exposure to
electrical, mechanical and chemical hazards.
• Before installing/servicing this unit, technicians
MUST put on all PPE required for the work being
undertaken (Examples; cut resistant gloves/sleeves,
butyl gloves, safety glasses, hard hat/bump cap, fall
protection, electrical PPE and arc flash clothing).
ALWAYS refer to appropriate Material Safety Data
Sheets (MSDS)/Safety Data Sheets (SDS) and OSHA
guidelines for proper PPE.
• When working with or around hazardous chemicals,
ALWAYS refer to the appropriate MSDS/SDS and
OSHA/GHS (Global Harmonized System of
Classification and Labelling of Chemicals) guidelines
for information on allowable personal exposure
levels, proper respiratory protection and handling
instructions.
• If there is a risk of energized electrical contact, arc, or
flash, technicians MUST put on all PPE in accordance
with OSHA, NFPA 70E, or other country-specific
requirements for arc flash protection, PRIOR to
servicing the unit. NEVER PERFORM ANY
SWITCHING, DISCONNECTING, OR VOLTAGE
TESTING WITHOUT PROPER ELECTRICAL PPE AND
ARC FLASH CLOTHING. ENSURE ELECTRICAL
METERS AND EQUIPMENT ARE PROPERLY RATED
FOR INTENDED VOLTAGE.
Failure to follow instructions could result in death or
serious injury.

Introduction
ACC-SVN121C-EN 3
Trademarks
All trademarks referenced in this document are the
trademarks of their respective owners.
Revision History
ACC-SVN121C-EN (12 Feb 2015)
• Added 2-speed units transformer installation steps.
General
The transformers referred to in this Installation
Instructions manual are used with air handlers in
conjunction with condensers that were not equipped with
factory installed low voltage transformers. Refer to Ta b l e 1
to determine which kit is to be used with a particular
voltage unit.
Inspection
Remove the kit contents from the shipping package and
inspect for damage. Report any damage immediately to
the transportation company and make any appropriate
claims.
1. Transformer w/ Enclosure
2. Control Box Access Cover
3. (5) Connection Diagrams & (4) Wiring Diagrams
4. Wire Harness (Standard Unit)
5. Wire Harness (2-Speed Unit)
6. Envelope Contents:
a. (1) Reset Label
b. (1) Kit Installed Label
c. (1) ETL Label
d. (1) Bushing
e. (1) Green Ground Screw
f. (1) Lock Washer
g. (2) Screws
h. (1) Pop-in Wire Tie
i. (8) Wire Ties
Ta b l e 1. K i t s
Transformer Voltage Unit(s)(a)
(a) On 8th digit model numbers that are 3, the motor voltage is field con-
verted to 460v.
BAYTFMR011 208/230 TWE090D300/E300, TWE120D300/E300,
TWE120E303, TWE120E304, TWE150E303,
TWE150E304
BAYTFMR012 460 TWE090D300/E300, TWE120D300/E300,
TWE120E403, TWE120E404, TWE150E403,
TWE150E404
BAYTFMR012 575 TWE090DW00/EW00, TWE120DW00/EW00
BAYTFMR013 380/415 TWE076DD00/ED00, TWE101DD00/ED00
Figure 1. Kit content

4ACC-SVN121C-EN
Installation
Standard Unit Transformer 1. Remove the air handler's side panel which conceals the
unit control box (the panel above the nameplate).
2. Remove and retain the 2 screws that secure the top
cover of the control box (leave the top cover on the
control box). See Figure 2.
3. Remove the front cover from the control box and
discard.
4. Remove the plug in the top cover of the control box,
discard, and install the snap bushing that is supplied
with the kit. See Figure 2.
WARNING
Hazardous Voltage w/Capacitors!
Disconnect all electric power, including remote
disconnects and discharge all motor start/run
capacitors before servicing. Follow proper lockout/
tagout procedures to ensure the power cannot be
inadvertently energized. Verify with an appropriate
voltmeter that all capacitors have discharged. Failure to
disconnect power and discharge capacitors before
servicing could result in death or serious injury.
Figure 2. Standard control box transformer installation
Safety Agency

Installation
ACC-SVN121C-EN 5
5. Connect standard unit transformer wire harness on to
transformer per unit diagram. Attach ground wire to
transformer enclosure using the green ground screw
passing through the wire terminal then the lock
washer. See Figure 2, p. 4.
6. Position the transformer kit over the control box top
cover with the open side lining up with the opening on
the control box. See Figure 2, p. 4.
7. Thread the wires coming from the transformer
through the snap bushing that was just installed in the
top of the control box.
8. With the transformer kit covering the top cover of the
control box, secure it in place with the screws that were
retained in step 2 (these two screws will go into the
same holes that they came from). See Figure 2, p. 4.
9. Using a third screw supplied with the kit, finish
securing the transformer kit to the top of the control
box by installing the third screw through the hole in the
tab on the transformer kit to the corresponding hole in
the top cover of the control box. See Figure 2, p. 4.
10. Apply the safety agency label to the side of the
transformer enclosure as shown in Figure 2, p. 4.
11. Apply the Reset label to the front cover with arrow
pointing towards the snap bushing as shown in
Figure 2, p. 4.
Note: The (BAYTFMR011 and BAYTFMR012) transformers
are factory wired for 230V and 460V power
respectively. To convert BAYTFMR011 to 208 volt
power, disconnect wire 1L (R) from the 230V
terminal on the primary side of the transformer and
reconnect to the 208V terminal. To convert
BAYTFMR012 to 575 volt power, disconnect wire 1L
(R) from the 460V terminal on the primary side of
the transformer and reconnect to the 575V
terminal. See the wiring diagram in Figure 5, p. 7.
Note: Full wiring schematics are available through e-
Library. If access is not available, contact your local
sales office.
12. Disconnect wire 68T(BL) from the auxiliary contact on
the side of the indoor fan contactor in the control box.
13. Connect the piggy back terminal end of wire 68U(BL),
coming from the transformer supplied with the kit, to
the terminal where wire 68T(BL) was just disconnected
from on the auxiliary contact on the side of the indoor
fan contactor.
14. Reconnect wire 68T(BL) to the piggy back terminal on
wire 68U(BL) on the auxiliary contact on the side of the
indoor fan contactor. (See the wiring diagram in
Figure 5, p. 7.)
15. Connect wire 59F(R), coming from the transformer
supplied with the kit, to terminal “R” on the low voltage
terminal board (LTB2) on the side of the control box.
(See the wiring diagram in Figure 6, p. 8.)
16. Connect wire 1L(R) to the ¼” quick connect male
terminal on the line side of the contactor (the bottom
side) following the wiring diagrams in Figure 5 and
Figure 6, p. 8.
17. Connect wire 3L(BK) to the ¼” quick connect male
terminal on the line side of the contactor (the bottom
side) following the wiring diagrams in Figure 5 and
Figure 6, p. 8.
18. Place the correct adhesive back wiring diagrams that
match the unit (provided in the kit) onto the new
control box cover front and back. See Figure 2, p. 4.
19. Install the new control box cover, which is supplied in
the kit. An extra screw is supplied in the kit to mount
this cover.
20. Re-install the air handler's side panel.
2-Speed Unit Transformer
1. Disconnect power from unit.
2. Remove transformer from enclosure. See Figure 3.
WARNING
Hazardous Voltage w/Capacitors!
Disconnect all electric power, including remote
disconnects and discharge all motor start/run
capacitors before servicing. Follow proper lockout/
tagout procedures to ensure the power cannot be
inadvertently energized. Verify with an appropriate
voltmeter that all capacitors have discharged. Failure to
disconnect power and discharge capacitors before
servicing could result in death or serious injury.
Figure 3. Remove transformer from enclosure

Installation
6ACC-SVN121C-EN
3. Identify the wire harness with wire numbers 27B (red)
and 29B (black).
4. Connect wires 27B and 29B to L1 and L3 respectively of
the load side of the fuse block. Wire colors should
match.
5. Note voltage labels on primary of the transformer.
Screw transformer into control box as shown in
Figure 4, p. 6. Ensure reset switch is facing out.
6. Connect wire 29B to COM on the primary of the
transformer. Connect wire 27B to the appropriate tap
on the primary of the transformer, corresponding to
unit supply voltage.
7. Install pop-in wire tie and snap bushing as shown in
Figure 4.
8. Connect wires 35P, 37T, and 36D to the secondary of the
transformer as shown in Figure 9, p. 11. Attach ground
wire 36D to control box using provided screw and lock
washer.
9. Route wires 35P and 37T through snap bushing to LTB2
along with existing wiring. Connect 35P to LTB2-R and
37T to LTB2-B2 as shown in Figure 9, p. 11.
10. Neatly collect wire slack in pop-in wire tie. Use other
wire ties to secure wires as desired.
11. Apply transformer diagram, reset label, and safety
agency label in locations shown in Figure 4.
Figure 4. Transformer installation - 2-speed unit
Safety Agency

Installation
ACC-SVN121C-EN 7
Wiring Diagrams
Figure 5. BAYTFMR011, BAYTFMR012, BAYTFMR013 - (one of two) single refrigerant circuit

Installation
8ACC-SVN121C-EN
Figure 6. BAYTFMR011, BAYTFMR012, BAYTFMR013 - (two of two) single refrigerant circuit

Installation
ACC-SVN121C-EN 9
Figure 7. BAYTFMR011, BAYTFMR012, BAYTFMR013 - (one of two) dual refrigerant circuit

Installation
10 ACC-SVN121C-EN
Figure 8. BAYTFMR011, BAYTFMR012, BAYTFMR013 - (two of two) dual refrigerant circuit

Installation
ACC-SVN121C-EN 11
Figure 9. Transformer diagram - 2 speed air handler with staged condensers

The manufacturer optimizes the performance of homes and buildings around the world. A business of Ingersoll Rand,
the leader in creating and sustaining safe, comfortable and energy efficient environments, the manufacturer offers a
broad portfolio of advanced controls and HVAC systems, comprehensive building services, and parts. For more
information, visit www.IRCO.com.
The manufacturer has a policy of continuous product and product data improvement and reserves the right to change design and specifications without notice.
We are committed to using environmentally
conscious print practices that reduce waste.
© 2015 Trane All rights reserved
ACC-SVN121C-EN 12 Feb 2015
Supersedes ACC-SVN121B-EN (15 Dec 2011)