PKG-SVX027D-EN
65
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.
Figure 49. Hinge
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’s directional
arrows pointing toward the fan. Verify that no air bypasses
the filters. See Figure 50, p. 66 for proper filter placement.
Table 20. SCWM filter data, water-cooled units
Unit Size 25 Ton 30 Ton 35 Ton 40 Ton 50 Ton 60 Ton 70 Ton 80 Ton
Number - Size (in.)
6 6 6 9 12 12 15 15
24”x24” 24”x24” 24”x24” 24"x20" 24"x20" 24"x20" 24"x24" 24"x24"
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