Additional Expansion Vessel - Ferroli Xignal Service Instructions Manual

Built-in Central Heating Water Circulating Pump Built-in Central Heating Water Circulating Pump Built-in Central Heating Water Circulating Pump
Built-in Central Heating Water Circulating Pump Built-in Central Heating Water Circulating Pump
The pump head available for circulating the water is given in fig. 8.
N.B. - N.B. -
N.B. - N.B. - The pump is factory set at position 3. The pump is a Grundfos type 15-50 UPS series. N.B. -
Grundfos Pump performance graph
Note - Note -
Note - Note - Minimum flow through boiler heat exchanger at any time should not fall below 6 litres per minute. Note -
If required an additional expansion vessel may be fitted to the central heating return inlet.
If the total volume of water in the system exceeds 40 litres an additional expansion vessel must
be fitted to the central heating return inlet.
Pump performance curve Grundfos UPS 15-50 Pump performance curve Grundfos UPS 15-50 Pump performance curve Grundfos UPS 15-50 Pump performance curve Grundfos UPS 15-50 Pump performance curve Grundfos UPS 15-50
SAFETY VALVE SAFETY VALVE
SAFETY VALVE SAFETY VALVE SAFETY VALVE
SETTING (bar) SETTING (bar) SETTING (bar)
SETTING (bar) SETTING (bar)
VESSEL CHARGE VESSEL CHARGE
VESSEL CHARGE VESSEL CHARGE VESSEL CHARGE
PRESSURE (bar) PRESSURE (bar) PRESSURE (bar)
PRESSURE (bar) PRESSURE (bar)
INITIAL SYSTEM INITIAL SYSTEM
INITIAL SYSTEM INITIAL SYSTEM INITIAL SYSTEM
1.0
PRESSURE (bar) PRESSURE (bar) PRESSURE (bar)
PRESSURE (bar) PRESSURE (bar)
TOTAL WATER TOTAL WATER
TOTAL WATER TOTAL WATER TOTAL WATER
EXPANSION VESSEL VOLUME (litres) EXPANSION VESSEL VOLUME (litres) EXPANSION VESSEL VOLUME (litres) EXPANSION VESSEL VOLUME (litres) EXPANSION VESSEL VOLUME (litres)
CONTENT of SYSTEM CONTENT of SYSTEM CONTENT of SYSTEM
CONTENT of SYSTEM CONTENT of SYSTEM
LITRES
25 3.5
50 7.0
75 10.5
100 14.0
125 17.5
150 21.0
175 24.5
200 28.0
For syst. volumes other than For syst. volumes other than For syst. volumes other than
For syst. volumes other than For syst. volumes other than
those given above, mult. the syst. those given above, mult. the syst. those given above, mult. the syst. those given above, mult. the syst. those given above, mult. the syst. 0.140
volume by the factor across volume by the factor across volume by the factor across
volume by the factor across volume by the factor across
14
3.0
0.5 1.0
1.5 2.0 1.5 2.0
6.5 13.7 4.7 10.3
12.9 27.5 9.5 20.6
19.4 41.3 14.2 30.9
25.9 55.1 19.0 41.2
32.4 68.9 23.7 51.5
38.8 82.6 28.5 61.8
45.3 96.4 33.2 72.1
51.8 110.2 38.0 82.4
0.259 0.551 0.190 0.412
1 2 3 Speed settings
A Boiler pressure drop
B Max. available pump head C.H.
Fig. 8
SIZING OF ADDITIONAL EXPANSION VESSELS: SIZING OF ADDITIONAL EXPANSION VESSELS: SIZING OF ADDITIONAL EXPANSION VESSELS:
SIZING OF ADDITIONAL EXPANSION VESSELS: SIZING OF ADDITIONAL EXPANSION VESSELS:
Deduct from the value given in the table the 7 litre vessel
supplied.
1.5
Note Note
Note Note Note
2.0
1. 1. 1. 1. 1. Fill C.H. installation to min. 1.5 bar.
2. 2. 2. 2. 2. Select by preference the expansion vessel for
increased system pressure of 2.0 bar
3. 3. 3. 3. 3. Expansion vessel must be fitted to Central Heating
8.3
Return Inlet
16.5
4. 4. 4. 4. 4. The standard 7 litres expansion vessel is charged
24.8
to 1 bar
33.1
41.3
49.6
57.9
66.2
0.33