Installation - venting

Calculating the total duct length :

Friction against the inner walls of the ducting will slow down the expelled air as it passes through. An elbow, bend, non-return flap or wall vent creates more friction than a straight duct. The friction created by each of these is expressed as an additional duct length factor. The additional length factors are calculated by comparing the friction created by, for example, an elbow to that created by 1 metre of straight plastic piping (Table I).

The additional duct length factor for each item needs to be added together to ascertain the total duct length required.

A larger internal duct diameter also helps reduce friction. If the total duct length is more than 20 m the duct diameter should be increased (Table II).

1.To calculate the total duct length required:

￿First measure the distance which will require straight ducting. Multiply this amount by the corresponding additional duct length factor in Table I.

￿Establish the number of angles, bends etc. necessary and add their additional duct length factors together with the help of Table I.

￿Add all the additional duct length factors together to get the total duct length.

2. Internal duct diameter

￿Refer to Table II for the appropriate duct diameter required.

Table I

 

 

 

Additional

 

 

 

duct length

 

 

 

factor

Flexible ducting*

 

 

– 1 m laid straight

 

1.8 m

– 45° angle

 

1.5 m

(Bend radius = 0.25 m)

 

 

– 90° angle

 

2.5 m

(Bend radius = 0.25 m)

 

 

Flexible aluminium vent hose* / plastic

piping

 

 

– 1 m laid straight / or 1 m

 

1.0 m

straight pipe

 

 

– 45° angle / elbow

 

0.6 m

(Bend radius = 0.25 m)

 

 

– 90° angle / elbow

 

0.8 m

(Bend radius = 0.25 m)

 

 

Wall vent kit* or window vent kit*

– with louvred grille

 

3.8 m

– with non-return flap (hinged

1.5 m

flap)

 

 

Non-return flap* to be

 

14.3 m

integrated into the vent

 

 

ducting

 

 

Flat ducting (for washer dryer

11.0 m

stack)*

 

 

Venting connection to the

 

1.0 m

left/right

 

 

*optional accessory from Miele

 

 

 

 

 

Table II

 

 

Maximum total

 

Internal duct

duct length allowable

 

diameter required

20 m

 

 

100 mm

40 m

 

 

125 mm

100 m

 

 

150 mm

41

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Miele T 8722 operating instructions Calculating the total duct length, Internal duct diameter
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T 8722 specifications

The Miele T 8722 is a remarkable tumble dryer that epitomizes quality and efficiency, designed for those who demand the best in laundry care. One of the standout features of the T 8722 is its heat pump technology, which significantly reduces energy consumption. This model is rated as energy efficient, making it not only economical for everyday use but also environmentally friendly.

With a generous capacity of up to 8 kilograms, the T 8722 is suitable for large families and can handle bulky items with ease. The drum design ensures that laundry is evenly dried without snagging or tangling, which is crucial for maintaining the quality of your fabrics. Additionally, Miele's perfect drying programs adapt automatically to different fabric types, offering tailored care for everything from delicate silks to sturdy cottons.

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In terms of maintenance, the Miele T 8722 is designed with convenience in mind. The filter system is easily accessible, allowing for simple cleaning to ensure optimal performance. The integrated heat exchanger is also designed to be self-cleaning, which means less hassle for the user while maintaining efficient operation.

Safety features are also prioritized in the T 8722, including a child lock mechanism and an overheating protection system. This combination of features not only reinforces user safety but also contributes to the overall reliability of the appliance.

In summary, the Miele T 8722 tumble dryer encapsulates the brand's commitment to quality, efficiency, and user-friendly design. With advanced technologies, customized drying programs, and a focus on fabric care, it is an ideal addition to any modern laundry room.
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