OPERATION
Use an on/off switch to operate this fan. See “CONNECT ELECTRICAL WIRING” for details.
1. Do not use in a cooking area.
2. Two ways to connect ductwork to a factory-shipped unit.
ASSEMBLY INSTRUCTIONS
ROOF CAP*
(with built-in
damper)
ROUND
DUCT*
WALL CAP*
(with built-in
damper)
*
Purchase
separately
POWER
CABLE*
INSULATION*
(Place around and
over Fan Housing.)
Seal gaps
around
Housing.
FAN
HOUSING
ROUND
ELBOW(S) *
Seal duct
joints with
tape.
Keep duct
runs short
PLAN THE INSTALLATION
1. Sliding hanger bars have been provided, which allow the housing
to be positioned accurately anywhere between the framing. The
bars span up to 24 in. and can be used on all types of framing:
I-joist, standard joist, and truss construction. Slide hanger bars onto
housing and adjust as needed to fit between framing.
Hanger Bar
HUMIDITY SENSOR (AP200DH-S)
SENSOR OPERATION
The humidity control and fan can be operated separately. Use a 1- or 2- function wall control. Do not use a dimmer switch to operate
the humidity control. See “Connect Wiring” for details.
The humidity-sensing fan uses a sophisticated humidity sensor that responds to: (a) rapid increases in humidity or (b) humidity above a
user-adjustable setpoint (30%-80% relative humidity). The humidity sensor may occasionally turn the fan ON when environmental
conditions change. If the fan continuously responds to changing environmental conditions, “H” (means “humidity”) adjustment may be
required. This figure is factory-set for about 80% (Ambient temperature of 25
℃
).
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 control,
the “H” may need to be increased toward maximum “+”. If the control is responding too often to changing environmental conditions,
movement toward less “-” “H” may be required.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.
When the temperature changes, humidity sensor values will have deviation.
TIMER ADJUSTMENT
The humidity sensing fan has a “T” (means timer) that can be adjusted from 5 to 60 minutes (factory-set at about 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-adjustable set-point.
To adjust the “T”:
1. Disconnect power at service entrance;
2. Through the grille, locate the slot marked “T”;
3. Carefully rotate the “T” adjustment to desired setting (from 5 to 60 minutes).
4. Check operation by turning on a humidity source until the fan turns on.
5. Turn humidity source off and time the unit.
6. Repeat above steps if necessary.
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