Trane IntelliPak SCRF 25, Installation, Operation And Maintenance Manual

Page: 37 / 120

SCXF-SVX01Q-EN 37
insulation location. Align plenum front with control
panel side of unit. Using strips and screws provided,
secure plenum to unit. Treat field-cut holes to prevent
fiberglass from entering the air stream.
N No otte e:: Plenum insulation must be applied properly to
prevent air bypass around the plenum. See
Figure 20, p. 37 .
Figure 20. Correct plenum insulation placement
Plenum Bottom View
Dashed line indicates correct insulation placement.
Installing the Airside Economizer
N No otte e:: Airside economizer option available on 20 to 80
tons only.
U Un niitt H Ha an nd dlliin ng g
1. Hoist the damper cabinet to the installation location
with straps positioned under the skid as shown in
Figure 21, p. 38 . Use spreader bars to prevent unit
damage during lifting.
2. With the damper cabinet at its final location (near
the unit), remove the screws securing it to the skid
from the side flanges. Retain these screws for later
use.
U Un niitt P Prre ep pa arra attiio on n
3. Open the access door and remove the damper
cabinet’s support legs and its hanging bracket. The
support legs are secured to the skid, and the
hanging bracket is secured with wire ties to an
inside flange near the cabinet’s base. Remove the
C-channel collar and install it on the unit, if not
already installed.
4. Remove the roll of 1/8" thick gasket from the
damper cabinet’s W-supports, and apply it to the C-
channel collar mounted on the rear of the unit. This
gasket will provide a seal between the damper
cabinet and the unit.
5. Attach the legs (with screws provided) to the leg
brackets located on the damper’s base.
6. Attach a field-provided clevis of suitable strength ( >
1/2"), to each of the corner lifting brackets through
the 7/8" diameter holes.
7. Attach to the clevises a means of lifting the damper
cabinet from its skid.
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8. Slowly raise the damper cabinet from its skid.
9. Attach the hanging bracket across the front of the
damper cabinet. Position it with its short flange
pointing to four o’clock, and secure it with screws
provided. See
Figure 21, p. 38 .
10. Lift the damper cabinet and position it such that the
hanging bracket is positioned over the unit’s C-
channel collar.
11. Lower the damper cabinet until the holes in its side
flanges are aligned with the holes in the C-channel
collar. Install screws removed in step 3 through the
damper cabinet’s side flanges and into the C-
channel’s corresponding holes.
12. Attach ductwork to the top and back dampers
according to local codes.
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13. Open the damper cabinet’s door and connect the
ffa acctto orry y--p prro ov viid de ed d p pllu ug g from the actuator to the
ffa acctto orry y--p prro ov viid de ed d p pllu ug g in the unit’s filter section.
14. C Ca ab biin ne ettss w wiitth h T TR RA AQ Q d da am mp pe errss o on nlly y:: Unroll two
rolls of pneumatic tubing located inside damper
cabinet. Route tubes through cabinet’s front upper
panel (0.25 dia. holes provided). Connect to two
pneumatic tubes protruding from customer
electrical connection panel on unit. Be sure to
connect black to black, white stripe to white stripe).
15. C Ca ab biin ne ettss w wiitth h T TR RA AQ Q d da am mp pe errss o on nlly y:: Locate the
“bullet” sensor and rolled up wiring in the unit’s
filter section. Route it into the damper cabinet and
insert the sensor into the sensor mounting clip
attached to underside of one of the Traq dampers.
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