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Model: 

VFB080D4H1

READ AND SAVE THESE INSTRUCTIONS 

GENERAL SAFETY INFORMATION

1.   Make sure that the electric service supply voltage is AC 

120V, 60Hz.

2.   Follow all local electrical and safety codes, as well as 

the National Electrical Code (NEC) and the Occupational 
Safety and Health Act (OSH Act).

3.   Always disconnect the power source before working on or 

near the ventilating fan, motor or junction box.

4.   Protect the power cord from sharp edges, oil, grease, hot 

surfaces, chemicals or other objects.

5.  Do not kink the power cord.
6.   

shown in Fig.A.

7.  Provide suction parts with proper ventilation.
8.   This unit is UL Listed for use over a bathtub or shower 

when installed in a GFCI protected branch circuit.

9.   These ventilating fans are intended for residential usage 

only.

WARNING

TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK, OR 
INJURY TO PERSONS, OBSERVE THE FOLLOWING:
1.   Use this unit only in the manner intended by the 

manufacturer. If you have questions, contact the 
manufacturer.

2.   Before servicing or cleaning the unit, switch the power off 

at the service panel and lock the service disconnecting 
means to prevent the power from being switched on 
accidentally. When the service disconnecting means 
cannot be locked, securely fasten a prominent warning 
device, such as a tag, to the service panel.

3.   Installation work and electrical wiring must be done by 

4.   

burning equipment to prevent backdrafting. Follow the 
heating equipment manufacturer’s guideline and safety 
standards such as those published by the National Fire 
Protection Association (NFPA), and the American Society 
for Heating Refrigeration and Air Conditioning Engineers 
(ASHRAE) and local code authorities.

5.   When cutting or drilling into the wall or ceiling, do not 

damage electrical wiring and other hidden utilities.

 GENERAL SAFETY INFORMATION

6.   Ducted ventilating fans must always be vented to the 

outdoors.

7.   If this unit is to be installed over a tub or shower, it must 

be marked as appropriate for the application and be 
connected to a GFCI (Ground Fault Circuit lnterrupter) – 
protected branch circuit.

8.   Do not use this unit with any other solid-state control 

device. Solid-state controls may cause harmonic 
distortion, which can cause a motor humming noise.

9.   NEVER place a switch where it can be reached from a 

tub or shower.

10.   Not to be installed in a ceiling thermally insulated to a 

value greater than R40. (This is required for installation 
in Canada only).

CAUTION

1.   For general ventilating use only. Do not use to exhaust 

hazardous or explosive materials and vapors.

2.   Not for use in cooking areas. (Fig.B)
3.   This product must properly connect to the grounding 

conductor of the supply circuit.

4.   To  reduce the risk of injury to persons, install the fan at 

Turning angle too large

Duct shrink

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Body

45°

Cooking area

45°

Do not install above or

  inside this area

 Cooking

Equipment

floor

 

Minimum 18 in.

Turning angle too large

Duct shrink

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b

 

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w

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s

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a

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Body

45°

Cooking area

45°

Do not install above or

  inside this area

 Cooking

Equipment

floor

 

Minimum 18 in.

Fig. A

Fig. B

Summary of Contents for VFB080D4H1

Page 1: ...eral Safety Information 3 Preparation and Wiring Diagrams 4 Assembly Instructions New Construction 5 Assembly Instructions Existing Construction 6 Grille Installation 8 Humidity Sensing Fan Operation 8 Care and Maintenance 9 Troubleshooting 10 Dimensions 11 11 Warranty 12 ITEM 809721 HUMIDITY SENSING BATH FAN MODEL VFB080D4H1 Scan here for product video ...

Page 2: ...ION QTY Fan Body 1 Grille 1 Suspension Bracket I 1 Suspension Bracket II 1 Suspension Bracket III 1 Duct Connector 1 PACKAGE CONTENTS A B HARDWARE CONTENTS Images are to scale X 4 X 3 Long Wood Screw 4 x 25 Short Machine Screw M4 x 12 1 2 3 4 5 6 ...

Page 3: ...dards such as those published by the National Fire Protection Association NFPA and the American Society for Heating Refrigeration and Air Conditioning Engineers ASHRAE and local code authorities 5 When cutting or drilling into the wall or ceiling do not damage electrical wiring and other hidden utilities GENERAL SAFETY INFORMATION 6 Ducted ventilating fans must always be vented to the outdoors 7 I...

Page 4: ...r hardware store WIRING DIAGRAM DIMENSION REQUIREMENTS OFF ON L N POWER SWITCH JUNCTION BOX SWITCH BOX WHITE BLACK GREEN GRD BLACK ON OFF SWITCH purchase separately SWITCH BOX 120 VAC LINE IN WHITE GROUND bare POWER SWITCH WIRING PLATE Ceiling Opening L Ceiling Opening W Ceiling Opening H 10 25 in 10 25 in 8 5 in Housing Dimension L Housing Dimension W Housing Dimension H 9 68 in 9 68 in 7 98 in P...

Page 5: ...nto the bracket cover on the duct connector side Then attach suspension bracket II and bracket III to the back of the fan body 3 Secure the fan body to the joist with suspension brackets using long wood screws Hardware A Long wood screw 4 Secure the suspension brackets to the fan body using a short machine screw Hardware B Short machine screw NEW CONSTRUCTION ATTACHING TO THE JOIST 1 1 4 5 A 5 3 4...

Page 6: ...c 6 Connect a 4 in circular duct a not supplied and vent to the outside Secure it with duct tape not supplied or clamp not supplied to make the connection secure and air tight 7 Turn on power source Check fan for any abnormal sound or vibration Turn off power source Review all safety precautions 1 Remove existing fan 2 Measure the opening to ensure it is large enough to accommodate the new fan bod...

Page 7: ...h one long wood screw Hardware A Long wood screw 5 Insert fan body into the ceiling cut out making sure to align the duct connector with the fan body 6 Secure the fan body from below using long wood and drywall into the joists Hardware A Long wood screw 7 Remove fan junction box cover Using wire nuts not supplied connect house wires to fan wires a as shown in the wiring diagram on page 4 Wire conn...

Page 8: ...o ON position The LED indicator light in the fan will be BLUE The fan will automatically start when the humidity level in the room is above 60 If humidity level is below 60 the fan will stop automatically 2 Full Speed Mode Cycle wall on off switch LED indicator light in fan will be AMBER 3 Fan Off Move wall on off switch to OFF position a 1 2 1 2 3 Blue LED Light Amber LED Light Blue LED Light Amb...

Page 9: ... water over 140º Fahrenheit Turn off power source Review all safety precautions CARE AND MAINTENANCE 1 To remove grille squeeze springs and pull down 2 Wash and clean the grille in a sink and dry with a cloth 3 Remove dust and dirt from the fan body with a vacuum cleaner 4 Dampen cloth with dust detergent and wipe the fan body Then wipe dry with a clean cloth 5 Replace grille back onto fan body 6 ...

Page 10: ...ed please call Customer Service 3 Be sure you do not have any sharp bends in duct closer than 18 in to the fan discharge 4 Use recommended size ducting to reduce fan noise 5 Be sure the fan is securely attached to your ceiling joists The fan is not clearing the room 1 airfow within room 2 1 Be sure a door or window is slightly ajar or opened 2 Be sure the CFM rating on the fan matches the requirem...

Page 11: ...e 0 3 Sones Voltage 110 220V Hertz 50 60Hz Power Consumption 9 0 W Duct diameter 4 in Weight 7 52 lbs Dimension Ceiling opening length 10 25 in Ceiling opening width 10 25 in Ceiling opening height 8 5 in Housing dimension length 9 68 in Housing dimension width 9 68 in Housing dimension height 7 98 in ...

Page 12: ...t be shipped prepaid Repaired or replacement products will be shipped by Delta Electronics F O B shipping point 3 Delta Electronics shall not be liable for any indirect incidental consequential punitive or special damages arising out of or in connection with products use or performance regardless of the form of action whether in contract tort including negligence strict product liability or otherw...

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