ACC-SVN264B-EN
11
Installation - FIAECON103*
CAUTION
Heavy Object!
Failure to follow instructions below could result in
severe injury and equipment damage. Economizer
weighs over 50 pounds and should be installed by two
people.
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.
1. Remove the unit end panel and both (front and rear) fresh
air access panels from the unit and set them aside.
Figure 11. Panel removal
Unit Access Panel, Front
(Do Not Remove If Hinged)
Unit Access Panel, Rear
Unit End Panel
2. For a factory installed low leak economizer, skip directly to
of the installation instructions.
3. Remove both cartons containing ship with parts from the
outdoor air damper assembly and discard any shipping
brackets.
Figure 12. Unpacked damper assembly with carton A
and B
Carton A
Carton B
Outside Air Damper
4. Remove contents of carton B and install the return air front
block-off as shown in
with #10-16 x 5/8 in.
screws with sealing washer. Screws can be found in the
hardware bag from carton A.
Figure 13. Return air front block-off installation
Return Air Block-off, Front Panel
WCI Access and Bushing for Wiring
5. Install the outdoor air damper assembly as shown in
to the end of the unit and on the return air
duct flange.
