Supply Air, Exhaust, And Ventilation Cross-Sections; Supply Air/Exhaust Air; Calculating The Total Length And Diameter Of A Supply-Air Or Exhaust Pipe - Miele PDR 914 Operating And Installation Instructions

Commercial tumble dryers

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Supply air, exhaust, and ventilation cross-sections

Supply air/exhaust

air

Calculating the to-

tal length and di-

ameter of a sup-

ply-air or exhaust

pipe

The tumble dryer may only be operated when the ducting has been

connected properly and the room is sufficiently ventilated.

The length of the required ductwork and the number and shape of the

elbows are determined by the structural conditions on-site. In order to

maximize the airflow efficiency, the pipeline should be as short as

possible and contain few or minimal elbows.

 The exhaust ducting must not be made from flammable materi-

als.

Otherwise there is a risk of fire.

Use only non-flammable materials for the exhaust ducting. All local

regulations for metallic ducting must be observed. Plastic must not

be used for ventilation.

In upward exhaust ducting systems, a condensate drain must be fitted

to the bottom. The condensate must be drained via a water collection

tray or a floor drain positioned in an appropriate location.

If air is being directed from multiple appliances into a combined line

(exceptional circumstances), a non-return device (non-return flap)

must be installed in each separate line to prevent backflow.

To make subsequent cleaning of the pipes easier, cleaning flaps

should be fitted to elbows wherever possible.

The on-site exhaust ducting and venting to the outdoors must be reg-

ularly checked for lint deposits and cleaned if necessary.

Installation

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Pdr 918 Pdr 922 Pdr 928 Pdr 944