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Fig. 2 — Typical Filter Access Panel View Locations
Economizer
Fig. 3 — Economizer Installed in R/A Section
O/A Panel
Fig. 4 — Attach O/A Panel
Filter Access Panel
Indoor Coil Access Panel
Screw
Fig. 5 — Fig 7 Top View of EconoMi$er2 Installed in
9.
While everything is open install and wire any other accesso-
ries and/or sensors as applicable and convenient, per their
installation instructions. Some accessories require that unit
ducting already be installed.
10. Attach filler panel above O/A panel. Slide under RTU
(packed rooftop unit) top flange then drop down until bottom
mount holes align with top holes on O/A panel. Fasten with
provided sheet metal screws. (See Fig. 6.)
11. Attach R/A (return air sensor) blank off panel. (See Fig. 7.)
The grommet must be installed before duct work is installed.
12. Install the EconoMiSer2 hood over the EconoMiSer2 assem-
bly. Use screws provided. (See Fig. 6.) Insert screw through
right side flange of hood into EconoMiSer2 flange.
13. Install provided barometric relief hood on field-installed R/A
duct ensuring it is water tight. (See Fig. 8.)
14. Check all wiring for safety then reapply power to the unit.
Verify correct operation and setting of the accessory. Refer to
page 5 for unit wiring diagram.
15. Install the filter by opening the filter clips which are located
underneath the hood top. Insert the aluminum filter into the
bottom filter rack (hood divider). Push the filter into position
past the open filter clips. Close the filter clips to lock the filter
into place. (See Fig. 9.)
16. To adjust economizer minimum position and other settings,
refer to instructions provided with specific Economizer DDC
Controller.
17. Relocate the Outdoor Air Temperature (OAT) sensor if
needed. The OAT is not used with all DDC controls for Econ-
omizer operations. Check specific control used in the unit. If
the control does need OAT sensor, insulate from the metal
surface and move out into the intake hood for a more accurate
read of the outside air. (See Fig. 10.)
3
Filters
EconoMi$er2
Plug
EconoMi$er2
Actuator
Unit
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