RT-SVX063G-EN
127
twice (press the Back button if the main menu does not
display)
2. Scroll down to Load & Motor, press OK
3. Select 1-2, press OK
4. Press down until parameter 1-23 is displayed.
Parameter 1-23 can then be modified by pressing OK
and pressing the Up and Down buttons.
5. When the desired selection has been made, press OK .
Should replacing the VFD become necessary, the
replacement is not configured with all of Trane's operating
parameters. The VFD must be programmed before
attempting to operate the unit.
To verify and/or program a VFD, use the following steps:
1. At the unit, turn the 115 volt control circuit switch to the
Off position.
Important: HIGH VOLTAGE IS PRESENT AT TERMINAL
BLOCK OR OPTIONAL UNIT DISCONNECT
SWITCH.
2. To modify parameters:
a. Press Main Menu twice (press Back if the main
menu does not display)
b. Use the Up and Down buttons to find the parameter
menu group (first part of parameter number)
c. Press OK
d. Use the Up and Down buttons to select the correct
parameter sub-group (first digit of second part of
parameter number)
e. Press OK
f. Use the Up and Down buttons to select the specific
parameter
g. Press OK
h. To move to a different digit within a parameter
setting, use the Left and Right buttons (Highlighted
area indicates digit selected for change)
i. Use the Up and Down buttons to adjust the digit
j. Press Cancel to disregard change, or press OK to
accept change and enter the new setting
3. Repeat Table 71, p. 127 and Table 72, p. 129 for
supply fan VFDs and Table 73, p. 129 for condenser
fan VFDs (if low ambient option is installed).
4. To reset all programming parameters back to the
factory defaults:
a. Go to parameter 14-22 Operation Mode
b. Press OK
c. Select Initialization
d. Press OK
e. Cut off the mains supply and wait until the display
turns off.
f. Reconnect the mains supply - the frequency
converter is now reset.
g. Ensure parameter 14-22 Operation Mode has
reverted back to “Normal Operation”.
Notes:
• Item 9 resets the drive to the default
factory settings. The program
parameters listed in Table 71, p. 127 and
Table 72, p. 129 for supply fan VFDs and
Table 73, p. 129 for condenser fan VFDs
(if low ambient option is installed), will
need to be verified or changed as
described in Item8.
• Some of the parameters listed in the
table are motor and application specific.
Due to various motors and efficiencies
available, use only the values stamped
on the specific motor nameplate.
• A backup copy of the current setup may
be saved to the LCP before changing
parameters or resetting the drive . See
LCP Copy in the VFD Operating
Instructions for details.
5. Follow the start-up procedures for supply fan .
6. After verifying that the VFD(s) are operating properly,
press the STOP key to stop the unit operation.
7. Follow the applicable steps in the “Final Unit Checkout”
section to return the unit to its normal operating mode.
If a problem with a VFD occurs, ensure that the
programmed parameters listed for supply and condenser
fan VFDs have been set before replacing the driveTable
71, p. 127 and Table 72, p. 129 for supply fan VFDs and
Table 73, p. 129 for condenser fan VFDs (if low ambient
option is installed).
Table 71. Supply fan VFD programming parameters
ID
Description Parameter Setting
0-01
Language [0] English US
0-03
Regional Settings [1] North American
Service and Maintenance
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