Service and information

Frequently asked questions (FAQ)

General questions

Where will I find system manuals, photos and software updates

You will find system manuals, photos and software updates at the QUNDIS-Download-Center. If you wish to use the QDC please register here. After we have checked your details we will send you your access data.

How can I obtain datasheets

You will find datasheets for all our products here.

Heat cost allocators

What is the meaning of the numbers and symbols on the display of the electronic heat cost allocator?

With the display of current consumption please note that only the product scale displays actual consumption in KWh. A heat cost allocator with a unit scale displays only a basic value, which has to be converted using a specific formula. For more information, see data sheet.

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Why does my heat cost allocator continue to count when the radiator is turned off?

Heat cost allocators only count when the temperature of the radiator is higher than the room temperature.

What’s the difference between one-sensor and two-sensor operation?

In 1-sensor operation a constant value is prescribed for the ambient temperature and only the radiator temperature is measured. In 2-sensor operation the actual difference between the ambient temperature and the radiator temperature is calculated. The measuring value is recorded via one (radiator) or two temperature sensors (radiator and ambient temperature sensor).

What’s the difference between the unit scale and the product scale?

In the case of the unit scale each heat cost allocator is programmed with the same K-values. When the bill is drawn up the displayed value is multiplied by the evaluation factors of the radiator, which are also calculated. The valuation factor depends on the heating output of the radiator, the type of radiator and type of assembly, details of which are printed on the bill. The total of the calculated values appear on the bill as a consumption unit. In the case of the product scale each heat cost allocator is already programmed with the K value for the radiator. The values displayed on the bill are the same as the values on the heat cost allocator.

Heat meters

How can I read my heat meter?

 

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With every electronic heat meter you can have the current and the annual consumption displayed. To access the menu you press the upper key twice and the lower key once. Level LO shows you current consumption, level L1 the annual consumption. With the upper key you can switch from level to level and with the lower key you can move from field to field within an individual level. To return to the menu from within a level you press both keys at the same time.

What is the meaning of the numbers and symbols on the display of the electronic heat meter?

We offer various types of electronic heat meters. The data sheets on our website will explain to you what appears in the display of your heat meter.

Water meters

What is the meaning of the numbers and symbols on the display of the electronic water meter?

We offer various types of electronic water meter. The data sheets on our website will explain to you what appears in the display of your water meter.