HUMIDITY SENSING BATH FAN MODEL VFB25ACH / VFB25ADH / VFB25AEH TABLE OF CONTENTS Package Contents General Safety Information Preparation and Wiring Diagrams Assembly Instructions - New Construction Assembly Instructions - Existing Construction Grille Installation Humidity Sensing Fan Operation Care and Maintenance Troubleshooting Dimensions Warranty...
PACKAGE CONTENTS PART DESCRIPTION ❶ Fan Body ❷ Grille ❸ Suspension Bracket I ❹ Suspension Bracket II ❺ Suspension Bracket III ❻ Duct Connector HARDWARE CONTENTS (Images are to scale) Long Wood Screw ( ∅ 4 x 25) Short Machine Screw (M4 x 12) Model: VFB25ACH / VFB25ADH / VFB25AEH...
GENERAL SAFETY INFORMATION READ AND SAVE THESE INSTRUCTIONS 6. Ducted ventilating fans must always be vented to the outdoors. GENERAL SAFETY INFORMATION 7. If this unit is to be installed over a tub or shower, it must 1. Make sure that the electric service supply voltage is AC be marked as appropriate for the application and be 120V, 60Hz.
PREPARATION Proper insulation around the fan to minimize building Tools Required for Assembly (not included): Hammer, heat loss and gain. 4” circular duct is recommended Flathead Screwdriver, Wire Nuts, Nails, Duct Tape, for installation. The ducting from this fan to the outside Phillips Head Screwdriver, Utility Knife of building has a strong effect on the air flow, noise Helpful Tools (not included): Electric Drill, Drill Bits...
ASSEMBLY INSTRUCTIONS NEW CONSTRUCTION – ATTACHING TO THE JOIST BEFORE INSTALLATION Turn off power source. Review all safety precautions. 1. If spacing between joists is 12 in. apart, use four long wood screws (provided) to attach the fan body ❶ to ceiling joists. Hardware Long wood screw 2.
ASSEMBLY INSTRUCTIONS 5. Remove the fan junction box cover . Using wire nuts (not supplied), connect house wires to fan wires as shown in the wiring diagram on page 4. Wire connections are as follows: black to live switch wire, white to neutral, green to ground. Reattach fan junction box cover 6.
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ASSEMBLY INSTRUCTIONS 3. If this fan is not replacing an old fan, be sure to cut a 10.25 in. x 10.25 in. opening for the fan body ❶ . 4. Place the duct connector ❻ through the ceiling cut out. Connect a 4 in. circular duct (not supplied) and vent to the outside.
GRILLE INSTALLATION Attach grille ❷ by pinching mounting springs insert into the narrow rectangular slots in fan body ❶ . HUMIDITY SENSING FAN OPERATION 1. Humidity Sensing Mode: Flip wall switch to “ON” position. The LED indicator light in the fan will be BLUE.
CARE AND MAINTENANCE See safety information before proceeding. Routine maintenance should be done at least once a year. • Never use solvents, thinner or harsh chemicals when cleaning the fan. • Do not allow water to enter the motor. • Do not immerse metal parts in water. •...
TROUBLESHOOTING PROBLEM POSSIBLE CAUSE CORRECTIVE ACTION The fan is not turning on 1. Power off 1. Make sure power supply is on. 2. Faulty switch 2. Test or replace switch. 3. Faulty wire connection 3. Check wire in switch box. The fan seems louder 1.
6. To qualify for warranty service, you must notify Delta Electronics at the address or telephone number below. 7. Delta Electronics shall have no liability to the original owner-user with respect to any defect caused by abuse, misuse, neglect, improper transportation or storage, improper testing, improper installation, improper operation,...
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