7
Fig. 12 — Hood Assembly Placed in Duct Work
6. Install three 1/4-14 x 3/4 in. gasket head screws
(AL31AZ308) along the top of the hood.
7. Install three 1/4-14 x 3/4 in. gasket head screws
(AL31AZ308) along the bottom of the hood.
8. Install 3 more 1/4-14 x 3/4 screws om right and left side of
hood assembly.
9. Remove shipping tape from damper blades.
10. Remove two small plug access plates located in the econo
-
mizer motor compartment. The economizer motor compart
-
ment is accessible by removing the economizer hood screen,
if the economizer hood is already installed on the unit.
11. Connect wiring harness (50HE401639) to power exhaust
assembly PL-9 to extend harness if needed.
12. Route the PL-9 plug, supplied with the power exhaust fan
assembly, through the bottom plug access hole in the econo
-
mizer motor compartment and through the top plug access
hole. Route the PL-9 through the grommet located in the top
left corner of the control box.
13. Connect the 6 pin plug PL-9 from the wiring harness into the
6 pin plug of the power exhaust fan assembly. Ensure that the
PL-9 connection is made inside the control box.
14. Bundle up excess wire of the motor harness and secure with
wire ties. When bundling wires, be sure to gather wires as
close as possible so that the wires can not contact moving
parts for the power exhaust fans or the economizer mecha
-
nisms.
15. Replace plug access plates in economizer motor
compartment.
16. Replace the control box access panel.
POWER EXHAUST FUNCTIONAL CHECK
For Units with EconoMi$er IV Controls
(HH63AW001-W7212 Honeywell Controller)
1. With main power shut off, mark minimum position on
EconoMi$er
®
IV controller. (See Fig.13.)
Fig. 13 — EconoMi$er IV Controller (HH63AW001-
W7212 Honeywell Controller)
2. The controller must be in occupied mode to energize the
power exhaust fans. To set the controller to occupied mode,
check the “CUT FOR OCCUPANCY” jumper on the central
terminal board. (See Fig. 14).
Fig. 14 — Central Terminal Board
• If the jumper has not been cut, proceed to Step 3.
• If the jumper has been cut, place a jumper wire across the
OCCUPANCY terminal.
3. Place jumper wire on thermostat inputs across terminals R
and G to activate a call for indoor fan to energize. (See
Fig. 14.)
4. Energize main power to the unit.
TR1
24 Vac
COM
TR
24
Vac
HOT
1
2
3
4
5
EF
EF1
+
_
P1
T1
P
T
N
EXH
2V
10V
EXH
Set
Set
2V
10V
2V
10V
DCV
DCV
Free
Cool
B
C
A
D
SO+
SR+
SR
SO
AQ1
AQ
DCV
Min
Pos
Open
Max
N1
