Delta VFB050B3A1 Instructions Manual Download Page 3

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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.

10.  This product is designed for ceiling installation only. Do 

not mount this product in a wall.

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 R50. (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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b

 

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a

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n

 

w

o

b

l

E

s

w

o

b

l

e

 

y

n

a

m

 

o

o

T

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

y

d

o

b

 

e

h

r

a

e

n

 

w

o

b

l

E

s

w

o

b

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y

n

a

m

 

o

o

T

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 VFB050B3A1

Page 1: ...y 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 VENTILATION FAN MODEL 50F 70F 70HS Single Speed Fan Operation 8 MFG Model VFB050B3A1 VFB070B3A1 VFB070B3H1 ...

Page 2: ...2 PACKAGE CONTENTS ...

Page 3: ...anufacturer 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 mu...

Page 4: ... Housing Dimension H 7 1 2 in 7 1 4 in 4 in Locate unit above GFCI protected circuit required or within 5 feet of the shower head Locate unit away from heating or cooling sources which can affect humidity levels Do not locate near window Unit may respond to the outdoor humidity level Unit must be installed in ceiling to properly sense moisture proper sensing The fan will operate most efficiently w...

Page 5: ...ng box cover from the Fan Body Remove the wiring knockout from the wiring box cover with a flathead screwdriver not included 3 Place the Fan Body next to a ceiling joist or wall stud The Fan Body should be level and perpendicular to the joust or stud Joist or wall stud 4 4 Mount the Fan Body to the joist or stud using nails not included were indicated Joist or wall stud Nail Nail ...

Page 6: ...ctor that shall be used for branch circuit wiring Push the wires back through the hole Reattach the wiring box cover Measure the opening to ensure it is large enough to accommodate the new Fan Body 7 1 2in x 7 1 4in Note 7 1 4 inch side of opening should be flush with the joist 6 6 6 Install a circular 3 in duct not included and secure it with duct tape or clamps neither included Finish ceiling wo...

Page 7: ...ee screws that hold the fan motor assembly in place Remove the fan motor assem bly from the Fan Body Unplug fan connector Pull the wire through the hole and into the junction box not included secure 120VAC house wiring from the wall diagram on page4 14AWG is the smallest conductor that shall be used for branch circuit wiring Push the wires back through the hole Reattach the wiring box cover Instal...

Page 8: ...ff switch LED indicator light in fan will be AMBER 3 Fan Off Move wall on off switch to OFF position 1 2 3 Blue LED Light Amber LED Light GRILLE INSTALLATION 1 1 Pinch the mounting springs on the Grille and insert them into the narrow rectangular slots inside the fan Push the Grille up toward the ceiling Turn on electricity at the breaker box after finishing installation SINGLE SPEED FAN OPERTION ...

Page 9: ...ter 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 Tur...

Page 10: ...damaged 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 req...

Page 11: ...ecifica ons subject to chang Model No Voltage V Frequency Hz Air Flow 0 1 SP CFM Power 0 1 SP W Max Current Amps Weight lb Note 50F VFB050B3A1 Single Speed 70HS VFB070B3H1 120 60 70 13 2 0 29 3 65 Humidity Sensing 70F VFB070B3A1 120 60 50 6 4 0 18 3 65 120 60 70 13 2 0 29 3 65 Single Speed ...

Page 12: ...repaid 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 otherwise 4 5 The wa...

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