Trane TR1 - Removing the Existing VFD and Components

6
BAS-SVN032B-EN
Removing the Existing VFD and Components
This section describes the procedure used to remove a Trane TR1 VFD from its panel assembly in
the RTAC fan control panels.
Programming parameters are supplied with the VFD that must be set based on unit
specifications. See “TR170 VFD Program Parameters,” p. 10.
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NNoottee:: For additional information regarding the safe discharge of capacitors, see PROD-SVB06x-
EN or PROD-SVB06x-FR.
1. Turn off power to the machine, water pumps, and any field provided control power.
2. Secure all disconnect switches following lockout/tagout safety procedures.
3. Open the control panel doors and verify all power has been removed.
4. Record the following information from the condenser fan motor nameplate. This information
will be needed during drive configuration.
• Motor Power
• Motor Voltage
• Motor Frequency
• Motor Current
• Motor Nominal Speed
NNoottee:: Verify the condenser fan motor is inverter duty rated. Inverter duty motors provide a
more robust system when combined with variable speed drives. In the event the
condenser fan is not inverter duty rated, contact the local Trane Parts Center with the
unit model number or serial number for replacement options.
5. Locate the existing TR1 VFD unit enclosure for RTAC units as shown in the following figures.