44
PKG-SVX029A-EN
Maintenance
Service Access
All service accessible areas are provided with hinged doors
that allow doors to swing open or be removed completely.
To use as a hinge, simply open hinge handle, depress Y
latch and swing door open.
To remove completely, open hinge handle and depress Y
latch on back side of hinge. Work door off of unit being
careful to not drop door.
Note: Evaporator door is 75 lbs and requires two-man lift to
remove safely.
Access unit controls through the front. The panel is secured
with two quick release hinges. Hinged panels allow access
to the fans and also the compressor and condensers.
Hinges also allow for complete removal of panel. Left and
right hinges allow for access to evaporator section and also
allow for removable of the entire panel. Expansion valves
and filter driers are easily accessible from here. Filters are
accessible via a hinged panel.
Power is accessible through a hinged door on the unit (left
hand is standard and right hand is optional). Hinge also
allows for panel to be removed.
Air Filters
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. Verify with a CAT III or IV
voltmeter rated per NFPA 70E that all capacitors have
discharged.
Filter access doors are shared with the evaporator cassette
access door. To replace throwaway filters, remove the dirty
elements and install new filters with the filter directional
arrows pointing toward the fan. Verify no air bypasses the
filters. See Table 15, p. 44 for proper filter placement.
Table 15. Unit filter sizes
Unit size
Qty
Filter size
20 to 35 9
20 x 24 inches
40 to 60 12
65 to 85 15
90 to 110 21
Inspecting and Cleaning the
Drain Pan
Check the condensate drain pan and drain line to confirm
the condensate drains properly at least every six months or
as dictated by operating experience.
If evidence of standing water or condensate overflow
exists, take steps to identify and remedy the cause
immediately. Refer to the “Troubleshooting,” p. 52 for
possible causes and solutions.
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.
Clean drain pans using the following procedure:
1. Disconnect all electrical power to the unit.
2. Don the appropriate personal protective equipment
(PPE).
3. Remove all standing water.
4. Use a scraper or other tools to remove and solid matter.
Remove solid matter with a vacuum device that utilizes
high efficiency particulate arrestance (HEPA) filters with
a minimum efficiency of 99.97% at 0.3 micron particle
size.
5. Thoroughly clean the contaminated area(s) with a mild
bleach and water solution or an EPA-approved sanitizer
specifically designed for HVAC use. Carefully follow the
sanitizer manufacturer’s instructions regarding product
use.
6. Immediately rinse the drain pan thoroughly with fresh
water to prevent potential corrosion from the cleaning
solution.
7. Allow the unit to dry thoroughly before putting the
system back into service.
8. Properly dispose of all contaminated materials and
cleaning solution.
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