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RT-SVX073A-EN
Table 80. Compressor VFD parameters
Menu ID
Description
Parameter
Setting
Communications
and Options
8-01 Control Site
[2] Control word
Only
8-30 Protocol [2] Modbus
RTU
8-31 Address [3]
8-32 Baud Rate [7] 115200
Table 81. Compressor VFD programming parameter
4-18
TRV200 Drive Current Limit (Parameter 4-18)
Intellipak 2
Unit
200-600V
S*HJ90 105%
S*HJ105 110%
S*HJ120 110%
S*HJ130 110%
S*HJ150 110%
Note: Parameter '4-18 Current Limit' for field installed
TRV200 drives must be set according to the
table for proper operation and to meet overload
protection requirements. Replacement drive will
not run the compressor until set properly. Factory
installed drives are programmed properly for unit
operation. Parameter 4-18 is available via the
quick menu.
Monthly Maintenance
WARNING
Hazardous Voltage w/Capacitors!
Failure to disconnect power and discharge capacitors
before servicing could result in death or serious
injury.
Disconnect all electric power, including remote
disconnects and discharge all motor start/run
capacitors before servicing. Follow proper lockout/
tagout procedures to ensure the power cannot be
inadvertently energized. For variable frequency drives
or other energy storing components provided by
Trane or others, refer to the appropriate
manufacturer’s literature for allowable waiting periods
for discharge of capacitors. Verify with a CAT III or IV
voltmeter rated per NFPA 70E that all capacitors have
discharged.
Before completing the following checks, turn the unit OFF
and lock the main power disconnect switch open.
Filters
Inspect the return air and final filters. Clean or replace them
if necessary. Refer to the Service and Maintenance chapter
for filter information.
Cooling Season
WARNING
Hazardous Voltage!
Failure to disconnect power before servicing could
result in death or serious injury.
Disconnect all electric power, including remote
disconnects before servicing. Follow proper lockout/
tagout procedures to ensure the power can not be
inadvertently energized. Verify that no power is
present with a voltmeter.
☐ Check the unit’s drain pans and condensate piping to
ensure that there are no blockages.
☐ Inspect the evaporator and condenser coils for dirt,
bent fins, etc. If the coils appear dirty, clean them
according to the instructions described in “Coil
Cleaning” later in this section.
☐ Inspect the F/A-R/A damper hinges and pins to ensure
that all moving parts are securely mounted. Keep the
blades clean as necessary.
WARNING
Rotating Components!
Failure to disconnect power before servicing
could result in rotating components cutting and
slashing technician which could result in death or
serious injury.
During installation, testing, servicing and
troubleshooting of this product it may be
necessary to work with live and exposed rotating
components. Have a qualified or licensed service
individual who has been properly trained in
handling exposed rotating components, perform
these tasks.
☐ Manually rotate the condenser fans to ensure free
movement and check motor bearings for wear. Verify
that all of the fan mounting hardware is tight.
☐ Verify that all damper linkages move freely; lubricate
with white grease, if necessary.
☐ Check supply fan motor bearings; repair or replace the
motor as necessary.
☐ Check the fan shaft bearings for wear. Replace the
bearings as necessary.
Note: These bearings are considered permanently
lubricated for normal operation. For severe dirty
applications, if relubrication becomes necessary,
use a lithium based grease. See Table 73, p.
174 for recommended greases.
Service and Maintenance
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