6
13. On some units, the return damper does not reach to the top
of the horizontal return opening in the unit. In this case, a
horizontal blank-off must be installed. Install the horizon-
tal blank-off at the top of the horizontal return opening.
(See Fig. 8.) Screw in place through pre-punched holes.
14. Install access door next to hood. Screw bottom of door to
HVAC unit. (See Fig. 7 and 9.) For the economizer for the
extra large cabinet, install plastic inserts on right-hand ver-
tical post and install long gasketed screws along the verti-
cal edge. Use standard serrated screws along the bottom of
the panel for all units.
15. See economizer performance charts in Fig. 11 and 12. See
base unit installation manual to make adjustments to meet
building ventilation requirements.
Fig. 11 — Barometric Flow Capacity
Fig. 12 — Return Air Pressure Drop
16. If the EconoMi$er X will be operating with an enthalpy
outside air sensor, remove the factory-installed
HH79ZZ007 dry bulb sensor from the front face of the
economizer (see Fig. 1), and install the accessory enthalpy
sensor HH57AC081 in the same location. Holes are pre-
punched. Connect the (2) wire gray harness with plug
from the EconoMi$er X to the enthalpy sensor. See wiring
diagram Fig. 25 and 30. Refer to the “Installing Optional
HH57AC081 Outside Air Enthalpy Sensor” section for
more details on enthalpy settings.
Fig. 13 — Connect EconoMi$er X Harness to Unit PL6
Economizer Harness
17. Remove and save the 12-pin jumper plug from the unit
economizer harness – located in the upper left corner of
the unit. Insert the EconoMi$er X plug into the unit wiring
NOTE: The 12-pin jumper plug should be saved for future use, in
the event that the EconoMi$er X assembly is ever removed. The
jumper plug is not needed as long as the EconoMi$er X assembly
is installed.
18. Remove the indoor blower access panel and the panel(s)
covering the unit control box. See Fig. 14.
Fig. 14 — Typical Indoor Fan Motor Access Panel
Locations
19. In the hardware kit provided with the EconoMi$er X
assembly is the HH63AW002 Jade controller (Honeywell
W7220). The controller is attached to a mounting bracket
and the EconoMi$er X harness is attached to the control-
ler. Mount the controller assembly on the left side of the
unit control box. Screw bracket to the control box through
pre-punched holes in control box. See Fig. 15.
0
500
1000
1500
2000
2500
0
0.05
0.1
0.15
0.2
0.25
0.
3
R
ELI
EF
F
LO
W
(
C
F
M
)
RETURN DUCT
S
TATIC PRE
SS
URE (in. wg)
S
m
a
ll C
ab
inet
L
a
rge
a
nd Extr
a
L
a
rge C
ab
inet
0
1000
2000
3
000
4000
5000
6000
0
0.1
0.2
0.
3
0.4
RE
T
U
RN
AI
R F
L
O
W
(CF
M
)
RETURN DUCT
S
TATIC PRE
SS
URE DROP (in. wg)
S
m
a
ll C
ab
inet
L
a
rge C
ab
inet
Extr
a
L
a
rge C
ab
inet
ROOFTOP UNIT’S
12-PIN MALE PLUG
ECONOMI$ER X
12-PIN FEMALE PLUG
INDOOR FAN MOTOR
ACCESS PANEL
HEATING ACCESS
PANEL
THERMOSTAT
CONNECTION
ACCESS PANEL
CENTER POST