Component Installation
74 CLCH-SVX07K-EN
Filters
Bag and cartridge filter sections can be used as a pre-filter
section, a final filter section, or both. This use is
determined by the filter’s placement in relation to the fan.
• A final filter is placed after the fan.
• A pre-filter is placed before the fan.
Note: Cartridge and bag filters provided by Trane are
fitted with a 7/8-inch header that fits in the filter
track. If using filters supplied by another
manufacturer, filters should be purchased with a 7/
8-inch header. In some cases it may be necessary to
gasket other manufacturers’ filters to ensure a
good air seal.
Filters should be installed when the unit is set. This will
protect internal components, such as the heating and
cooling coils.
Final Filter Section
A final filter section should not be bolted directly to the
face of a fan section. One or more intermediate sections
must be placed between the fan discharge and the filter
section.
Pre-Filter Section
A pre-filter section has no special installation
requirements unless placed directly upstream of a plenum
fan. In these configurations, ensure a blank section is
placed between the fan inlet and the filter section.
Trane recommends the use of disposable pre-filters with
high-efficiency filters. Disposable pre-filters slide into the
mounting tracks just ahead of the bag/cartridge filters.
Filter Installation
To install filters:
1. Disconnect the power to the unit.
2. Open the filter section access door.
3. Slide the filters into the tracks.
Note: Bag filters must be installed with the pleats in the
vertical plane.
4. The block-off is permanently installed and will create a
seal when the access door is closed.
5. Close the access door slowly to allow any gasketing to
compress.
Figure 95. Isolator adjustment for unit sizes 66-120
Figure 96. Isolator adjustment for belt-drive plenum fans
for unit sizes 3-8
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.
Figure 97. Filter block-off placement