20
B
A
Fig. 15
A
Test connector, heating water expansion vessel
B
Test connector, DHW expansion vessel (if instal-
led)
Adjust the pre-charge pressure of the DHW-side dia-
phragm expansion vessel (accessories) in accordance
with the system pressure on the DHW side:
DHW-side system pressure (bar)
Response pressure, safety valve (bar)
6
8
10
Pre-charge pressure of DHW-side diaphragm
expansion vessel (bar)
2.5
–
2.3
2.3
3.0
–
2.8
2.8
3.5
–
–
3.3
Specification for DHW-side diaphragm expansion ves-
sel (accessories):
■
Pre-charge pressure factory setting 5.2 bar
■
Max. operating pressure 10 bar
■
Max. DHW temperature 65 °C
Commissioning, inspection, maintenance
Adjusting the pre-charge pressure of the diaphragm expansion vessel on the
DHW side (if installed)
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Содержание Vitodens 111-W
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