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7. Connect Wiring
7-1. Follow all local electrical and safety codes.
7-2. NEVER place a switch where it can be reached from a tub
or shower.
7-3. Connect wires as shown in wiring diagrams.
7-4. Using wire nuts, connect house power wires to ventilating
fan wires.
7-5. 14 AWG (2.1 mm2) is the smallest conductor that shall be used
for branch-circuit wiring.
8. Test Run and Grille Attachment
8-1. With the power on, check for abnormal vibration or sound.
8-2. Insert the mounting springs into the slots and mount the
grille to the body.
9. Operation
Humidity Models: VFB25AEH, VFB25ADH, VFB25ACH
9-1. Humidity control mode: Turn on the power switch to operate
humidity control mode, and LED is ON in blue.
9-2. Full speed mode: Cycling ON/OFF switch to operate full speed
mode, and LED is amber.
Single Speed Models: VFB25AD, VFB25AC
9-3. Single speed control mode: Turn on the power switch to
operate ON or OFF.
Dual Speed Model: VFB25AX
9-1. Low speed control mode: Turn on the power switch to operate
low speed mode, and LED is green.
9-2. High speed control mode: Cycling ON/OFF switch to operate
high speed mode, and LED is amber.
MAINTENANCE WARNING
Disconnect power source before working on unit. Routine maintenance
must be done every year.
CAUTION
1. Never use gasoline, benzene, thinner or any other such
chemicals for cleaning the ventilating fan.
2. Do not allow water to enter motor.
3. Do not soak resin parts in water over 60°C.
CLEANING
1. Pull down the spring to remove grille.
2. Wash and clean grille (Use non-abrasive kitchen detergent,
wipe dry with new cloth).
3. Remove dust and dirt from ventilating fan using a vacuum cleaner.
4. Using a cloth dampened with kitchen detergent, remove any
dirt from ventilating fan. Wipe dry with new cloth.
5. Replace grille.
DIMENSIONS
SPECIFICATIONS
Model No.
Voltage
(V)
Frequency
(Hz)
Power
(W)
Air Flow @
0.1SP (CFM)
Weight
(lb.)
Note
VFB25AEH 110-220 50-60 24.0 130 7.52
Humidity
Sensor*
VFB25ADH 110-220 50-60 16.4 110 7.52
Humidity
Sensor*
VFB25ACH 110-220 50-60 8.0 80 7.52
Humidity
Sensor*
VFB25AD 110-220 50-60 16.4 110 7.52
VFB25AC 110-220 50-60 8.0 80 7.52
VFB25AX 110-220 50-60 24.0
110
7.52 Dual Speed
80
4
Spring
Slots
Ground
Neutral
Live
On
Switch Box
(Purchase separately)
Black
White
Green
Ventilation Fan
*If the fan is installed in an environment with relative humidity constantly more than 40%,
the fan may keep running when operating in humidity sensing mode since the relative
humidity level is constantly more than 40%.