Marley FAQ

Frequently asked questions

Welcome to Marley’s FAQ advice pages. Here you will find answers, explanations and general information on frequently asked questions.

Where can I install backflow flaps for wastewater?

The single and double backflow flaps can only be installed into non-facaes wastewater pipes

Where do I install which wastewater pipes?

Underground drainage pipes (sewer pipes, orange) may only be laid underground; the smallest radius = DN 110. Soil and waste pipes (high temperature, grey) are approved only for use as wastewater pipes within the house.

What are the advantages of Marley pipe ventilators?

Marley pipe ventilators regulate low pressure in wastewater pipes, preventing a vacuum from developing in siphons and odour stoppers. In the absence of pressure, the pipe ventilator is closed and airtight. No bad odours! In a detached family home, at least one ventilation pipe must lead up through the roof! The pipe ventilator does not replace the main roof ventilation!

Up to what temperature can Marley ventilators, flat pipework and ventilation grilles be exposed?

The maximal temperature the ventilators can cope with varies according to type, but is between 40 and 45° C. Flat pipework and PVC plastic ventilation grilles can resist temperatures up to 60° C.

Does the MWK -AN module slow down the ventilator?

No, the AN module activates the extra running tie of the ventilator. The ventilator begins to run as soon as the light switch or other switch is turned on. The ventilator will switch itself off simultaneously with the light switch, where this is turned off in less than two minutes. If the ventilator runs for more than two minutes, it will run as long as the light switch is left on, plus the additional programmed extra running time.

Do the Marley control modules work with all ventilators, or only with the module system ventilators?

The construction of these control modules is such that they are suited only to the Marley module system ventilators (MW 100/125/150 B/V).

Can I regulate the performance of my Marley ventilator separately?

In principle, yes; Marley does not, however, stock such rpm regulators. Try asking in your local DIY store for an rpm regulator for ventilators from other manufacturers. However, we have no data concerning long-term performance. On no account should a so-called dimmer (for lighting) be used.

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