Deluxe
“ODH” Series
4” & 6” Termination (duct)
Rough Opening:
11-1/4” L X 10-1/2” W
Housing Dimension:
11-1/4” L X 10-1/2” W X 7-5/8” H
Carefully position fan
for shortest duct run and
fewest elbows to achieve
maximum performance
1. Remove grille from housing before installation.
2. Insert pair of sliding brackets in each bracket mount.
3. Locate housing between ceiling joists and truss so bottom
flange will fit flush to the ceiling joist.
4. Loosely screw to joist through the mounting bracket
KEYHOLE slots (screws not provided).
5. Optional side mount to ceiling joist and use one side of the
bracket for more stable support.
1. For new fan installation position the housing in the
attic next to the ceiling joist or truss.
2. Trace housing bottom edge on ceiling material for cutout.
3. Confirm the opening, then cut hole 11-1/4” X 10-1/2” of the
housing inside edge.
4. Place housing inside opening (attic) of the ceiling.
5. To attach follow steps 3, 4, 5 for New Construction.
HUMIDITY SENSOR OPERATION
The humidity sensing fan uses a sophisticated humidity sensor that responds to: (a) rapid to moderate (user adjustable)
increases in humidity or (b) humidity above a user adjustable set point (50%-100% relative humidity). The humidity sensor
may occasionally turn the fan ON when environmental conditions change. If the fan continuously responds to changing
environmental conditions, adjustment “H” (humidity) may be required. The fan is factory set for about 75% (ambient
temperature of 77 F).
OPERATION
o
2
Deluxe
“ODH” Series
SENSITIVITY ADJUSTMENT
The “H” has been factory set for most shower applications. However, if the fan is in a tub area or is being used for dampness
H “+” may need to adjust to maximum setting. If the control is responding too often to changing environmental conditions,
adjust H “-” to lower the setting.
To adjust the “H”:
1. Disconnect power at service entrance.
2. Through the grille, locate the slot marked “H”.
3. Carefully rotate the “H” adjustment toward “+” or “-”.
4. Turn on power and check operation by turning on the shower or other humidity source until the fan turns ON.
5. Repeat above steps if necessary.
Humidity sensor has a deviation values when the temperature changes.
TIMER ADJUSTMENT (For model OD80H OD110H OD80LH OD110LH OD80LLH and OD110LLH )
The humidity sensing fan has a timer “T” that can be adjusted from 5 to 60 minutes (factory setting is 20 minutes). This “T”
controls the length of time that the fan remains ON after the sensor has stopped sensing a rise in humidity and the humidity
level is below the user adjusted set point.
To adjust Timer “T”:
1. Disconnect power at service entrance;
2. Through the grille, locate the slot marked “T”;
3. Carefully rotate the “T” and adjust to desired setting (from 5 to 60 minutes).
4. Check by turning ON the Humidity switch until the fan turn ON.
5. Turn the Humidity Switch OFF and time the unit.
The control box, located inside the fan housing, has three separate adjustments:
(1) The Low Airflow Knob adjusts the airflow from 30CFM up to the air flow rate of
the high fan speed determined by the dip switch setting.
(2) The Humidity Sensor Knob set user adjustable setpoint.
(3) The Dip Switch will adjust the fan speed setting from 80 to 120 CFM using a
4" duct or 90 to 140 CFM using a 6" duct.
Note: Both 4" & 6" duct adaptors are included.
Fan run continuously at a low speed(adjustable by low airflow knob) and automatically
boost up to high speed when humidity above a user adjustable setpoint
(50%-100% relative humidity).
After delay timer (20 minutes) returns fan to the default low speed.
Model
ODU814H ODU814LH ODU814LLH
-
+
-
+
1 2 3
1
Dip Switch
Power box
Low Airflow
Knob
Humidity
Sensor Knob
80 90 110 120 90 110 120 140
1
6"
Switch
position
Duct
diameter
(inches)
Airflow
(CFM)
6"
6"
6"
4"
4"
4"
4"
80 90 110 120 90 110 120 140
1 2 3
1 2 3
1 2 3
1 2 3
1 2 3
1 2 3
1 2 3
1 2 3
6"
Switch
position
Duct
diameter
(inches)
Air deliver
(CFM)
6"
6"
6"
4"
4"
4"
4"
Other airflow reference performance based on HVI Procedures
915, 916, and 920.
Factory setting: 110CFM ( )
HVI Certified performance based on HVI Procedures 915, 916,
and 920.
with 6" duct
2 3
2 3
1 2 3
1 2 3
1 2 3
1 2 3
1 2 3
1 2 3
1 2 3
Dip Switch Position
* Blower Assembly includes part 6, 5, d, 4, c, b, a.
Replacement installation:
Remove the screw (part c), then take out the motor plate (part 4) from the housing (part 9) by pushing
down the rib in the plate while pulling out on the side of the housing. Replace the broken parts.
5
6
d
e
a
1a
2
3
4
b
c
1b
12
7
9
8
10
10
11
PART
PART NAME
Qty.
1b
2
3
4
5
6
7
8
9
10
11
12
a
b
c
d
e
Housing
Damper / Duct Connector
Lens
Wiring plate
Screw
Blower Wheel
Wire Panel / Harness Assembly
Motor
1
2
1
1
1
1
1
1
1
4
1
1
4
4
1
4
1
Isolator
Motor Plate
Washer
Nut, Hex Lock
Grille Assembly (includes part 2)
1a
Grille Spring
Bar Hanger Kit
Screw
Power box
Model OD80H OD110H ODU814H
Model OD80LH OD80LLH OD110LH
OD110LLH ODU814LH ODU814LLH
SERVICE PARTS
WARNING: Power must be disconnected before servicing.
Grille Assembly (includes part 2)
1
3
