Biral ModulA RED Serie Instrucciones De Montaje Y Funcionamiento página 11

3.3 Operating conditions
Medium temperature:
– ModulA... RED +15 °C to +110 °C
– ModulA... GREEN +10 °C to +110 °C
– ModulA... BLUE +15 °C to +85 °C (recommended for domestic hot water systems: max 65 °C)
Operating pressure:
The maximum permissible operating pressure is indicated on the nameplate. (6 bar, 10 bar or 16
bar) Minimum operating pressure at the pump intake ports (intake pressure) at 500 m above sea
level:
ModulA ...
25-4/6/8/10/12
32-4/6/8/10/12
40-4/6/11
50-11
Per ±100 m height ± 0.01 bar
In the dual pump operation the supply pressure required must be increased by 0.1 bar in line with
the values in the table.
Ambient temperature:
0 °C to 40 °C
3.4 Non-return valve
3.5 Protection from the effects of frost
Where there is a risk of frost during downtime periods, measures required to avoid
frost damage must be taken.
75 °C
0.1
0.1
0.1
0.1
961864_00
Medium temperature
95 °C
Supply pressure [bar]
0.35
0.35
0.35
0.50
If a non-return valve is fitted, the pump must be
adjusted (see 7.2), so that the discharge pres-
sure of the pump exceeds the closing pressure
of the valve at all times.
This must be adhered to in particular for the
proportional pressure control (reduced delivery
height for decreasing delivery flow).
english 11
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110 °C
1.0
1.0
1.0
1.0