Sime EDEA - Circulation Pump; Expansion Vessel

21
5.7 Expansion vessel
Description U/M
Edea
30 40
Total capacity l 9,0 10,0
Prefilling pressure
kPa 100
bar 1,0
Useful capacity l 5,0 6,0
Maximum system content (*) l 124 140
(*) Conditions of:
Average operating temperature 70°C (with high tempera-
ture system 80/60°C)
Start temperature at system filling 10°C.
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CAUTION
– For systems with water content exceeding the
maximum system content (as indicated in the ta-
ble) an additional expansion vessel must be pre-
arranged.
– The difference in height between the relief valve
and the highest point of the system cannot exceed
6 metres. If the difference is greater than 6 me-
tres, increase the prefilling pressure of the expan-
sion vessel and the system when cold by 0.1 bar
for each meter increase.
5.8 Circulation pump
The flow-head performance curve available for the heating
system is shown in the graph below.
RESIDUAL HEAD (mbar)
0
0 800 1000 1200 1400600400200
100
200
300
400
500
600
700
40
30
FLOW (l/h)
Fig. 14
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CAUTION
The appliance is equipped with a by-pass which en-
sures water circulation in the boiler when the ther-
mostatic valves or cocks are used in the system.