Trane 4MYW4509A1 Installation Manual page 13

Connecting Electric Wiring Between Indoor and Outdoor Units
¡Hazardous Voltage!
Disconnect all electric 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 o serious injury.
1. Open the front panel of the indoor unit by lifting upward.
2. Unscrew and remove the cover plate.
3. Pull the power connection cable through the back of the indoor unit.
4. Firmly attach the power connection cables to the terminal block in the indoor unit, making sure
5. Reattach the cover plate with the appropriate screws.
6. Fasten the electric wiring within the control panel using a wire clip. In the case of heat pumps,
Wiring of Outdoor Unit
¡Hazardous Voltage!
Disconnect all electric 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 o serious injury.
1. Disassemble handle of right side plate or front side plate of outdoor unit.
2. Remove wire clamp, connect and attach power wiring cord to terminal block. Wiring should
3. Using a wire clamp, attach the power wiring cord inside the control panel for cooling and
4. Ensure wiring has been attached appropriately.
5. Reinstall handle or front side plate.
Note: Wrong wiring may cause a mal function of components.
MS-SVN046A-EN
to observe the proper terminal corrections as shown on the unit wiring diagram.
the signal control wire must be connected to the terminal block using a wire clip.
match that of the indoor unit.
heating unit; use the wire clamp to attach the signal control wire; next connect the
corresponding connector.
WARNING
WARNING
Installation
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