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4
1
12
Install grille.
Humidity Sensing LED Fan/Light ONLY:
Snap light module into inside of grille.
Plug in light module and sensor wires.
Squeeze grille springs and insert into slots
in blower. Push grille up against ceiling.
Install blower.
Re-install blower removed in Step1.
Secure blower with 2 screws from parts
bag. Plug blower into black receptacle.
Flex
TM
Series Humidity Sensing Fan/
Light ONLY: Plug 5-wire plug into
controller module.
Depending upon
model - your grille
may look different.
1
11
ALL INSTALLATIONS
WIRING DIAGRAMS
If grille spring
becomes dislodged
from grille - snap it
back into place as
shown.
WIRING OPTION #1
• When first switch (1) is ON, fan will operate automatically,
based on room humidity conditions.
• Turn fan ON immediately for the set timer period (to control
odors), by cycling first switch.
• Use second switch (2) to turn light ON/OFF.
• With optional connection shown, fan will always be ON
when light is ON.
BLK
HUMIDITY
CONTROL
LIGHT
FAN
GREY
BRN
BLK
RED
BLK
BLK
WHT
WHT
WHTWHT
WHT
GRD
GRD
LIGHT
(ON/OFF)
FAN
(AUTO/OFF)
120
VAC
LINE
IN
COM
2-FUNCTION CONTROL
(PURCHASE SEPARATELY)
WHT
GRD
SWITCH UNIT
(Optional)
(1)
(2)
WIRING OPTION #2
• When first switch (1) is ON, fan will operate automatically
based on room humidity conditions.
• Turn fan ON immediately (to control odors) by using second
switch (2).
• Use third switch (3) to turn light ON/OFF.
3-FUNCTION CONTROL
(PURCHASE SEPARATELY)
LIGHT
(ON/OFF)
COM
FAN
(ON/OFF)
FAN AUTO
(AUTO/OFF)
120
VAC
LINE
IN
SWITCH
WHT
GRD
BLK
BLK
WHT
UNIT
BLK
WHT
GRD
BLK
RED
LIGHT
WHT
WHT
BLK
WHT
BRN
HUMIDITY
CONTROL
FAN
WHT
(1)
(2)
(3)
GREY
RED
1100264E
Continue with Step 11.
Connect 4-in. round duct.
Pull existing ducting through housing
discharge opening and
tape ducting to
duct connector.
Push connector/ducting
back through opening. Engage tabs and
secure with screw from parts bag.
1
9
1
2
3
4
TABS
Humidity
Sensing LED
Fan/Light
ONLY
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