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2.2 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)
Vitogas 100-F
(cont.)
VITOGAS
VIESMANN
11
5822 428 GB
2