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Approved quality
CE designation according to current EC Directives
Qualitätsmarke der ÖVGW gemäß Gütezeichenverordnung
1942 DRGBl. I für Erzeugnisse des Gas- und Wasserfachs
Meets the requirements of the "Blue Angel" certificate of environmental
excellence to RAL UZ 39
1.2 Operating conditions
Requirements
Implementation
1.
Heating water flow rate
none
—
2.
Boiler return temperature
(minimum value)
35 ºC
Installation of an efficient return tempera-
ture raising facility (e.g. through 4-way
mixer and minimum limit and/or return
temperature raising pump)
3.
Low-end boiler water temperature
(also for frost protection)
35 ºC
Through the Viessmann control unit
(standard delivery)
Product information
(cont.)
VITOGAS
VIESMANN
5
5822 428 GB
1