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 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.

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© 2021 Trane

Installation Instructions

Frame-Mounted Tracer Summit™ 

BMTX BCU

Order Numbers: BMTX001CAD000 (CE, Without Modem), 
BMTX001CAD001 (CE, With Modem), BMTX001EAD000 (UL, Without 
Modem), BMTX001EAD001 (UL, With Modem)

.

Warnings, Cautions, and Notices

Read this manual thoroughly before operating or servicing this unit. 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.

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.

CAUTION

Indicates a potentially hazardous situation which, 
if not avoided, could result in minor or moderate 
injury. It could also be used to alert against unsafe 

NOTICE

Indicates a situation that could result in 
equipment or property-damage only accidents.

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 according to local 
rules. For the USA, 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.

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 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 Personal Protective Equipment (PPE) recommended for the work 
being undertaken. ALWAYS refer to appropriate SDS sheets and OSHA 
guidelines for proper PPE. When working with or around hazardous chemicals, 
ALWAYS refer to the appropriate SDS sheets and OSHA guidelines for 
information on allowable personal exposure levels, proper respiratory 
protection and handling recommendations. If there is a risk of arc or flash, 
technicians MUST put on all necessary Personal Protective Equipment (PPE) in 
accordance with NFPA70E for arc/flash protection PRIOR to servicing the unit. 
Failure to follow recommendations could result in death or serious injury.

WARNING

Follow EHS Policies!

Failure to follow instructions below could result in death or serious injury.

• All Trane personnel must follow the company’s Environmental, Health and 

Safety (EHS) policies when performing work such as hot work, electrical, fall 
protection, lockout/tagout, refrigerant handling, etc. Where local 
regulations are more stringent than these policies, those regulations 
supersede these policies. 

• Non-Trane personnel should always follow local regulations.

The frame-mounted Tracer Summit BMTX building control unit (BCU) can 
be used to replace controllers in existing equipment or it can be mounted 
in new equipment or custom enclosures.

Note: 

This BMTX board requires Tracer Summit V17 software. (17.077 BCU 

image or higher. This board will not function properly with lower BCU 
images.

All other BMTX BCUs that are connected to the site must be upgraded to the 
new BCU image at the same time this board is installed. The new BCU 
images are available to download from the proprietary Trane® Intranet 
software downloads web site. Failure to follow this instruction will result in 
the BCU board not working

Operating Environment

Ensure that the operating environment conforms to the specification listed 
below.

Temperature:

From 32°F to 122°F (0°C to 50°C)

Humidity:

10–90% non-condensing

Power 

Requirements:

18 - 32 Vac (24 Vac nominal), 50 or 60 Hz 76VA

Altitude:

6,500 ft (2,000 m)

Installation:

Category 3

Pollution:

Degree 2

Location:

Near controlled equipment to reduce wiring

Where public access is restricted to minimize possible 

tampering/vandalism

Enclosure Requirements

Before installing the frame-mounted BCU, ensure that the enclosure or 
mounting space meets the following minimum requirements:

• Minimum clearance shown in the illustration below.
• 24 Vac dedicated power supply.
• Compliance with National Electrical Code™ (NEC) and applicable local 

electrical codes for high-voltage power wiring to the enclosure.

Minimum Clearances

Ensure that the selected location provides ample space for the minimum 
clearance as shown below.

-

+

ROVE

R

ROVE

R

+

-

+

-

BACnet

(EIA-232)

+

-

COMM

3

C

OMM4A

COMM4B

ROVE

R

COMM

5

1/2 in. (13 mm)

3 in. (7.6 cm)

for communications wires

1/2 in. (13 mm)

1/2 in. (13 mm)

6 in. (152 mm)

(For I/O wires)

Installing the Termination Board

1. Remove the BCU from its packaging and separate the top and bottom 

frames.

2. Using the bottom frame (with the termination board) as a template, mark 

the location of the four mounting holes and the grounding screw on the 
mounting surface.

Note: 

If the mounting surface is metal and earth grounded, mark the 

location of the termination board ground hole. If not, go on to Step #3.

Important: 

If you are installing the BCU inside a plastic enclosure, attach the 

metal backing plate (included in the kit) to meet the CE requirements. If you 
are installing the BCU inside a metal enclosure and the ground screw is 
properly installed, it is not necessary to attach the metal backing plate.

3. Set aside the BCU and then drill holes for #8 (4 mm) screws at the marked 

locations.

4. Drill a 1/8 inch diameter pilot hole for the supplied grounding screw.
5. Secure the controller to the mounting surface with the enclosed using #8 

(4 mm) screws (not supplied) in the mounting holes.

6. Secure the BCU to the mounting surface with #8 (4 mm) screws (not 

supplied).

7. Provide the earth-to-ground connection by:

Drilling a pilot hole at the termination board ground hole and then 
installing a #8 (4 mm) screw through the ground hole. With this option, 
the surface on which the bottom frame is mounted must be earth 
grounded.

—or—

Wiring a ground connection from the 24 Vac common bus termination 
to earth ground. Common bus terminations are found on the board at 24 
Vac INPUT POWER.

8 in. [20.3 cm]

  

Grounding 

Hole

Mounting
Hole (4x)

9 1/2 in.

[24 cm]

10 1/4 in.

[26 cm]

1 1/4 in.
[3.1 cm]

5 3/4 in.

[14.6 cm ]

1 in.

[2.5 cm]

NOTICE

Avoid Equipment Damage!

Start and then remove each screw to ensure metal shards are not present before mounting the bottom frame and termination board. Self-tapping 
sheet-metal screws can result in loose metal shards which may damage the board or cause it to malfunction.

January 2021

BAS-SVN221G-EN

3270 3422

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