Delta breez VFB25AC, breez VFB25ACH, breez VFB25AD, breez VFB25AX, breez VFB25AEH Installation And Operating Instructions Manual

INSTALLATION AND OPERATING INSTRUCTIONS

VENTILATION SYSTEM

MODELS: VFB25AX / VFB25AD / VFB25AC
VFB25AEH / VFB25ADH / VFB25ACH

READ AND SAVE THESE INSTRUCTIONS

General Safety Information

1. Do not install this ventilating fan where air temperature may
exceed 40°C (104°F).

2. Make sure that the electric service supply voltage is AC 110~220V,
50~60Hz.

3. Follow all local electrical and safety codes, as well as the Nation
Electrical Code (NEC) and the Occupation Safety and Healthy
Act (OSHA).

4. Always disconnect the power source before working on or near
the ventilating fan, motor or junction box.

5. Protect the power cord from sharp edges, oil, grease, hot surfaces,
chemicals or other objects.

6. Do not kink the power cord.

7.
in Fig. A.

8. Provide suction parts with proper ventilation.

9. This unit is UL listed for use over a bathtub or shower when
installed in a GFCI protected branch circuit.

10. 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 any questions, contact the manufacturer.

2. Before servicing or cleaning unit, switch power o
panel and lock the service disconnecting means to prevent
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.
person(s) in accordance with all applicable codes and standards,

at service

8. These models are UL listed for tub and shower enclosures.

9. Do not use this unit with any other solid-state control device.
Solid-state controls may cause harmonic distortion, which can
cause motor humming noise.

10.
panel and lock the service disconnecting means to prevent
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.

11. NEVER place a switch where it can be reached from a tub
or shower.

12. Not to be installed in a ceiling thermally insulated to a value
greater than R40 (This is required for installation in Canada only).

Turning angle too large Duct shrink

Too many elbows Elbow near the body

Body

Fig. A

CAUTION

1. For general ventilating use only. Do not use to exhaust hazardous
or explosive materials and vapors.

2. Not for use in cooking area (Fig. B).

3. This product must be properly grounded.

4.

to prevent back drafting. 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 wall or ceiling, do not damage
electrical wiring and other hidden utilities.

6. Ducted ventilating fan 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 Interrupter) – protected branch
circuit.

Cooling Area

Cool in g

Equi pment

Fig. B

Fig. B

Fl oo r

1

SUPPLIED ACCESSORIES

Part Name Appearance Quantity

Grille 1

Long Screw

(M4x25)

Screw

(M4x12)

Suspension Bracket

(155mm)

B. Install with Joist

1. Choose the installation type according to the gure as below:

A

Spacing A on

Center Joists

12 inches Refer to Fig. D-01, E-01

16 inches Refer to Fig. D-02, E-02

6

3

Joist

19.2 inches Refer to Fig. D-03, E-03

24 inches Refer to Fig. D-04, E-04

Fig. C-01

1

Insert Suspension

Bracket

Suspension Bracket

(300mm)

Suspension Bracket

(355mm)

1

1

INSTALLATIONS

A. Install with Wood Frame

Model No. VFB25AD VFB25AC VFB25ACH VFB25AEH VFB25ADH VFB25AX

Install Dim.

(mm)

1. Body Installation

1-1. Construct the wood frame (not provided) with 30mm squarebar

1-2. Attach the duct connector to the wood frame with taping screw.

260 x 260 260 x 260 260 x 260 260 x 260 260 x 260 260 x 260

and attach it to the ceiling joist.

Duct Connector

I nch es ( mm )I nch es ( mm )

Fig. C-02

I nch es ( mm )I nch es ( mm )I nch es ( mm )I nch es ( mm )

2. Type I – 12 inches between joists

Fig. D-01

Suspension
Bracket I

Suspension
Bracket II

Body

Wood Frame

Taping Screw

1-3. Insert the body into the wood frame and connect it to the duct

connector. Secure the body on wood frame with taping screws.

1-4. Follow step 6 to 9 of installation to complete the installation work.

Body

Wood Frame

Taping Screw

Fig. E-01

Joist

Joist

2-1. Insert the suspension bracket into the bracket cover of adaptor

side and the back of the fan body.

2-2. Insert the fan between joists. Make sure the fan body is level

and perpendicular with the joist.

2-3. Ensure the distance between ceiling and fan body for the

thickness of grille.

2-4. Secure the suspension bracket to joists by using screw.

2-5. Secure the suspension bracket to fan body by using screw.

2-6. Follow step 6 to 9 of installation to complete the installation work.

2

3. Type II – 16 inches between joists

5. Type IV – 24 inches between joists

Fig. D-02

Suspension
Bracket III

Suspension
Bracket I

Fig. E-02

Joist

Suspension
Bracket II

Body

Joist

3-1. Insert the suspension bracket into the bracket cover of adaptor

side and the back of the fan body.

3-2. Insert the fan between joists. Make sure the fan body is level

and perpendicular with the joist.

3-3. Ensure the distance between ceiling and fan body for the

thickness of grille.

3-4. Secure the suspension bracket to joists by using screw.

3-5. Secure the suspension bracket to fan body by using screw.

3-6. Follow step 6 to 9 of installation to complete the installation work.

Fig. D-04

Suspension
Bracket III

Suspension
Bracket I

Fig. E-04

Suspension
Bracket II

Body

JoistJoist

5-1. Insert the suspension bracket into the bracket cover of adaptor

side and the back of the fan body.

5-2. Insert the fan between joists. Make sure the fan body is level

and perpendicular with the joist.

5-3. Ensure the distance between ceiling and fan body for the

thickness of grille.

5-4. Secure the suspension bracket to joists by using screw.

5-5. Secure the suspension bracket to fan body by using screw.

5-6. Follow step 6 to 9 of installation to complete the installation work.

4. Type III – 19.2 inches between joists

Fig. D-03

Suspension
Bracket III

Suspension
Bracket I

Fig. E-03

Joist

Suspension
Bracket II

Body

Joist

4-1. Insert the suspension bracket into the bracket cover of adaptor

side and the back of the fan body.

4-2. Insert the fan between joists. Make sure the fan body is level

and perpendicular with the joist.

4-3. Ensure the distance between ceiling and fan body for the

thickness of grille.

4-4. Secure the suspension bracket to joists by using screw.

4-5. Secure the suspension bracket to fan body by using screw.

4-6. Follow step 6 to 9 of installation to complete the installation work.

6. Duct Connection

Outside

Gradient
1°~2°

Ceiling

Body

Grill

Tape

Inside

Duct

Inspection Hole

6-1. Insert the duct into the duct connector and tape all ductworks

connection to make them secure and air tight.

6-2. Install the duct with a gradient 1°~2° to the outside.

3

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.

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.

Switch Box

Ventilation Fan

Black

White

Green

(Purchase separately)

On

Live

Neutral

Ground

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.

Slots

Spring

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

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.

SPECIFICATIONS

Model No.

VFB25AEH 110-220 50-60 24.0 130 7.52

VFB25ADH 110-220 50-60 16.4 110 7.52

VFB25ACH 110-220 50-60 8.0 80 7.52

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

*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%.

Voltage

Frequency

(V)

(Hz)

Power

(W)

Air Flow @

0.1SP (CFM)

110

80

Weight

(lb.)

7.52 Dual Speed

Note

Humidity

Sensor*

Humidity

Sensor*

Humidity

Sensor*

4

Wood Frame

Wood Frame

Duct Connector

Taping Screw

Taping Screw

Outside

Gradient
1°~2°

Inspection Hole

Grill

Grill

Spring

Slots

Ground

Neutral

Live

O

On

Switch Box

(Purchase separately)

Body

Body

Tape

Duct

Inside

Ceiling

Body

Joist

Joist

Ventilation Fan

Black

White

Green

The Breez Ventilation System is easy to install
in new or existing construction.

Make sure that the dimensions of the opening are
suitable for installation and follow the steps below.

Wood Frame Installation

Attach the duct connector to the wood frame with taping screw.

Wood Frame

Insert the body into the wood frame and connect it to the duct
connector. Secure the body on wood frame with taping screws.

Insert the duct into the duct connector.

Joist Mounting Installation

Ventilation Fan Installation Guide

Connect wires as shown in wiring diagram below.

Insert the mounting springs into the slots and mount
the grille to the body.

1

Step

4

Step

2

Step

5

Step

3

Step

Two basic types of installation are shown:

5

Suspension
Bracket I

Suspension
Bracket I

Suspension
Bracket III

Suspension
Bracket II

Suspension
Bracket II

Body

Type I -12 inchs between joists

Type II -16 inchs between joists

Joist

Joist

Joist

Joist

Body

Fig. D-01

Fig. E-01 Fig. E-02

Fig. D-02

Fig. C-02

Fig. C-01

Joist

A

Outside

Gradient
1°~2°

Inspection Hole

Grill

Body

Tape

Duct

Inside

Ceiling

Grill

Spring

Slots

Ground

Neutral

Live

On

Switch Box

(Purchase separately)

Ventilation Fan

Black

Spacing A on Center Joists

12 inches
16 inches

19.2 inches
24 inches

Insert Suspension bracket

Refer to Fig. D-01, E-01
Refer to Fig. D-02, E-02
Refer to Fig. D-03, E-03
Refer to Fig. D-04, E-04

White

Green

Suspension
Bracket III

Suspension
Bracket I

Suspension
Bracket II

Body

Suspension
Bracket III

Suspension
Bracket I

Suspension
Bracket II

Body

Fig. D-03

Fig. E-03 Fig. E-04

Fig. D-04

Joist

Joist

Joist

Joist

Type IV - 24 inches between joistsType III - 19.2 inches between joists

16(406.4)

19.2(487.7)
24(609.6)

12(304.8)

Inches (mm)

Inches (mm)

Joist Mounting Install

Ventilation Fan Installation Guide

Choose the installation spacing between two joists.

1

Step

Connect wires as shown in wiring diagram below.

4

Step

Use bracket to mount fan body between the joists.

2

Step

Insert the mounting springs into the slots and
mount the grille to the body.

5

Step

Insert the duct into the duct connector.

3

Step

4405 Cushing Parkway | Fremont, CA 94538

tel [phone] | www.deltabreez.com

6

DELTA ELECTRONICS THREE YEAR LIMITED WARRANTY

Delta Electronics Inc.(“ Delta Electronics” ) warrants to the original consumer purchaser in the

USA that the Breez ventilation fan products will be free from defects in material or workmanship.

This warranty is limited to three (3) years from the original date of purchase.

imitations and Exclusions

L

1. During the warranty period, a replacement for any defective product will be supplied free of

charge for installation by the consumer. The warranty provided herein does not cover charges for

labor or other costs incurred in the troubleshooting, repair, removal, and installation service.

2. All returns of defective parts or products must include the product model number, and must be

made through an authorized Delta Electronics distributor. Authorized returns must 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

otherwise.

4. This warranty does not extend to fluorescent lamp starters and tubes.

5. The warranty does not cover if user does not comply with manufacture’ s installation manual.

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,

installation, improper operation, improper use, improper maintenance, improper repair, improper
alteration, improper modification, tampering or accident of products or parts thereof, or unusual
deterioration or degradation of products or parts thereof due to a physical environment beyond
the requirements of products’ specifications.

improper transportation or storage, improper testing, improper

4405 Cushing Parkway | Fremont, CA 94538

tel [phone] | www.deltabreez.com