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.

 

 

 

 

 

 

Switch

 

 

 

 

 

 

 

 

 

 

 

 

Box (Purchase separately)

Ventilation

Fan

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Black

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Live

 

 

 

 

 

 

 

 

On

 

 

 

 

 

 

 

 

 

 

 

 

 

 

White

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Neutral

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Green

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

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

Frequency

Power

Air Flow @

Weight

Note

(V)

(Hz)

(W)

0.1SP (CFM)

(lb.)

 

 

 

 

 

 

 

 

 

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

 

 

 

 

 

 

 

 

 

 

 

 

 

*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%.

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Delta VFB25ADH, VFB25AX, VFB25ACH, VFB25AEH manual Maintenance Warning

VFB25AEH, VFB25ADH, VFB25AD, VFB25AC, VFB25ACH specifications

Delta VFB25 series includes five different models: VFB25AD, VFB25ACH, VFB25AX, VFB25AEH, and VFB25ADH. These models are widely recognized in the realm of industrial automation and control systems. Their versatility and robust design cater to various applications, making them suitable for users in diverse industries.

The VFB25AD model is primarily designed for temperature control applications. It features an advanced PID control algorithm, ensuring precise temperature regulation. The model is equipped with a user-friendly interface that allows for easy setup and operation. Its compact size makes it suitable for installations where space is a premium.

Moving on to the VFB25ACH, this model is tailored for applications requiring a high degree of accuracy in controlling humidity levels. It includes integrated sensors that monitor ambient conditions in real-time, enabling dynamic adjustments. This feature is particularly beneficial in environments such as laboratories and manufacturing facilities where temperature and humidity must be closely regulated.

The VFB25AX is designed with flexibility in mind. It incorporates multiple communication protocols, including MODBUS and RS-485, allowing seamless integration with different control systems. This model is an excellent choice for users looking to incorporate automation into their existing setups. It can handle a wide range of input signals, making it ideal for multi-faceted industrial applications.

The VFB25AEH is unique due to its energy efficiency features. This model employs advanced algorithms that minimize energy consumption while maximizing performance. Its also supports eco-friendly operations, making it a fitting choice for companies committed to sustainability. The design incorporates a heat recovery system, allowing for reduced operational costs and lower environmental impact.

Lastly, the VFB25ADH combines the features of its predecessors, targeting applications that require both temperature and humidity control. This hybrid model delivers accurate readings and adjustments, meeting the demands of complex environments. The user interface is designed for intuitive navigation, enabling quick configuration even for less experienced users.

In summary, the Delta VFB25 series stands out due to its specialized models that cater to temperature, humidity, and energy-efficient control needs. Each model comes with distinct technologies and features that reflect overriding priorities such as accuracy, flexibility, and sustainability, making them essential tools in modern industrial automation.