UNT-SVX07B-EN 101
Maintenance
Maintenance Procedures
Perform the following maintenance procedures to ensure proper unit operation.
WARNING
Live Electrical Components!
During installation, testing, servicing, and troubleshooting this equipment, it may be necessary
to work with live electrical components. Have a qualified licensed electrician or other individual
who is properly trained in handling live electrical components perform these tasks. Failure to
follow all electrical components could result in death or serious injury.
WARNING
Hazardous Voltage w/Capacitors!
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 an appropriate voltmeter that
all capacitors have discharged. Failure to disconnect power and discharge capacitors before
servicing could result in death or serious injury.
Air Filters
Change or clean air filters at least twice a year. Filters require more frequent care under high load
or dirty air conditions since a clogged filter reduces airflow. Table 1, p. 14 lists filter size and
quantity by unit size. Throwaway and pleated media filters are available for all units. Follow the
instructions below to replace the disposable filters.
All Models Except Vertical Cabinets
Remove the front panel of the vertical recessed unit and open the bottom panel door of the
horizontal cabinet and horizontal recessed unit to access the filter. The front panel of the vertical
cabinet unit does not require removal to change the filter.
Note: Vertical recessed, horizontal cabinet, and horizontal recessed units with a bottom return
have filter guides to secure the filter in position. Also, if these unit types have a fresh air
opening, they require an additional filter for the fresh air opening.
NOTICE
Replace All Panels and Filters Properly!
All unit panels and filters must be in place prior to unit startup. Failure to have panels and filters
in place could result in equipment damage.
Inspecting and Cleaning Drain Pans
Clean the fan-coil unit’s main and auxiliary drain pans to ensure the unit drains condensate
properly.
Check the condensate drain pan and drain line to assure the condensate drains properly at least
every six months or as dictated by operating experience.
If evidence of standing water or condensate overflow exists, immediately identify and remedy the
cause.
Clean the drain pans of any moisture or debris.
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