Expansion Vessel; Circulation Pump - Sime BRAVA SLIM HE 25 T ErP Manual De Instalación Y Mantenimiento

1.8

Expansion vessel

The expansion vessel installed on the boilers has the following
characteristics:
Description
Total capacity
Prefilling pressure
Useful capacity
Maximum system content (*)
(*) Conditions of:
Average maximum temperature of the system 85°C
Start temperature at system filling 10°C.
m
CAUTION
– For systems with water content exceeding the
maximum system content (as indicated in the
table) an additional expansion vessel must be
prearranged.
– 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 metres,
increase the prefilling pressure of the expansion
vessel and the system when cold by 0.1 bar for each
meter increase.
1.9

Circulation pump

The flow-head performance curve available for the heating
system is shown in the graph below.
RESIDUAL HEAD (mbar)
700
600
500
400
300
200
100
0
0 200 400
70
U/M
Brava Slim HE 25 T ErP
l 9,0
kPa 100
bar 1,0
l 5,0
l 124
600 800 1000 1200
FLOW (l/h)
Fig. 5
The flow-head performance curve available for the remote hot
water tank coil is shown in the graph below.
RESIDUAL HEAD (mbar)
700
600
500
400
300
200
100
0
0 200 400
m
CAUTION
The appliance is equipped with a by-pass which
ensures water circulation in the boiler when the
thermostatic valves or cocks are used in the system.
EN
600 800 1000 1200
FLOW (l/h)
Fig. 6