4
Fig. 5 —
Top View
7. Insert provided screw through the bottom left rear of the
economizer and into the unit base. (See Fig. 5 and 6.)
Reinstall the unit’s left side panel.
Fig. 6 —
Front Left View
8. Before the economizer is secured in place on the right hand
side, remove and save the 12-pin jumper plug from the unit
wiring harness. Insert the economizer plug into the unit wir
-
ing harness plug. (See Fig. 7.)
NOTE: The 12-pin jumper plug should be saved for future
use in the event that the EconoMi$er X system is removed
from the unit. The jumper plug is not needed as long as the
EconoMi$er X system is installed.
Fig. 7 —
Harness and Jumper Plug
9. Install the bottom panel with the relief damper attached on the
unit. (See Fig. 8.) Screw the panel in place.
NOTE: Remove the bottom screw holding the relief blade
closed.
NOTE: Access to the economizer actuator is through the
HVAC unit’s left side panel.
Fig. 8 —
Bottom Panel Installation
10. Install the upper end economizer panel over the economizer’s
outside air damper, and above the bottom panel. Screw panel
in place and screw panel into economizer in two places. (See
Fig. 9.)
Fig. 9 —
End View of Unit
11. Locate the mixed (supply) air temperature sensor
(HH79AH001) in the economizer hardware bag. A 2-wire
sensor harness with spade terminals is supplied with the
sensor. Plug the harness into the top of the HH79AH001
sensor. See Fig. 10 for sensor image. Mount the sensor in the
indoor fan section of the unit. (See Fig. 11.) Locate the orange
and brown wires in the wire bundle in the indoor fan section.
Connect these orange and brown wires to the 2-wire harness
attached to the HH79AH001 sensor. Mixed air default setting
is 53°F and can be adjusted from 38° to 70°F.
Fig. 10 — Dry Bulb and Mixed Air Sensor —
HH79AH001
Units Left
Side Panel
Left Front
Corner Post
Screw
Economizer
Flange
Economizer Shroud
Economizer Outside
Air Damper
Insert
Screw
Left Front
Corner Post
Insert
Screw
Jumper Plug
(Remove)
Harness/Plug
From Economizer
Harness/Plug
From HVAC
Remove Shipping
Screw
Bottom Panel
With Relief
Damper
Upper
Economizer
Panel
Shroud
EconoMi$er X
Economizer
Actuator
Re
lief D
amp
er
Provided
Upper Panel
Economizer
Outside Air
Damper
Provided
Bottom Panel
With Relief
Relief Damper
Remove
Shipping
Screw
Insert two (2) screws through the
panel and into the economizer
Honeywell
HH79AH001
