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©2020 Trane
Trane 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.
Trane - by Trane Technologies (NYSE: TT), a global climate innovator - creates
comfortable, energy efficient indoor environments for commercial and residential
applications. For more information, please visit trane.com or tranetechnologies.com.
Removing Existing Circuit Board
1. Disconnect the 24 Vac power cable from the termination board.
2. Remove the grounding screw from the lower right-hand corner of the
circuit board if it is installed.
WARNING
Hazardous Voltage!
Disconnect all electrical power, including remote disconnects, before servicing.
Follow proper lockout/tagout procedures to ensure the power cannot be
inadvertently energized. Failure to disconnect power before servicing could
result in death or serious injury.
Grounding Screw
P/N Location
3. Unsnap the top plastic frame holding the circuit board from the
bottom frame.
4. Disconnect the 20-pin cable from the 20-pin slot, then disconnect the
60-pin cable from the 60-pin slot.
5. On the top frame, push the two tall plastic pieces that hold the circuit
board in place away from each other.
6. Remove the circuit board from the frame.
Installing New Circuit Board
1. Place the circuit board on the top plastic frame.
2. Push down on the circuit board until it snaps into place.
3. Disconnect the 24 Vac power cable from the termination board.
4. Hold the top frame at a 90° angle to the bottom frame as shown
below.
5. Connect the 60-pin cable to the 60-pin slot, then connect the 20-pin
cable to the 20-pin slot.The connectors are keyed to the slots. Ensure
that the keys are lined up with the slots.
6. Align the snaps on the top frame with the mounting locks on the
bottom frame and then push the two frames together until it clicks.
7. For controllers with an operator display, connect the operator-display
cable to the circuit board.
8. Connect the 24 Vac power cable to the termination board. The green
status LED lights up.
Agency Listings and Compliance
The European Union (EU) Declaration of Conformity is available from
your local Trane® office.
24 Vac Power Connector
Status LED
Operator Display Connector
BAS-SVN077F-EN 05 Jun 2020
Supersedes 3270 3349 E (Mar 2016)
