Biral LX 321 [23/56] Commissioning operating check

Biral LX 321 [23/56] Commissioning operating check
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23
For connection to the frequency converter, please note
the following:
motor noises can be generated
motors must be protected against voltage peaks (LC filter)
5.2 Power setting
The motor has two rotating speeds. The switch to another rotary
frequency is made by means of rotary switch 1×230V or,
having opened the terminal box, by turning the plug connector
to 3×400V. Operate plug connector only when the mains has been
switched off (power supply).
There is a risk of scalding
6. Commissioning/Operating check
6.1 General remarks
Fill the system properly and deaerate it.
Put the pump into operation only when the system has been filled
and at existing minimum pressure.
Switch on power supply.
If air is still present the pump can generate noises. After a short
period in operation the air escapes normally and the pump then
runs noiselessly.
6.2 Deaerating
The system cannot be deaerated via the pump.
Deaeration of the pump, in particular the motor area, is
implemented automatically after a short period of operation.
However, if very rapid deaeration is required, proceed as follows:
- Switch pump off
- Reduce system pressure to 0.5 bar
- Release the screw plug so far
(approx. one turn in an anti-clockwise direction)
until water emerges.
Pump 1×230 V Pump 3×400 V
LX 321/LXD 321
Max. power 50 Watt 59 Watt
0,22 A 0,16 A
LX 322/LXD 322
Max. power 64 Watt 76 Watt
0,30 A 0,17 A
LX 323/LXD 323
Max. power 145 Watt 115 Watt
0,65 A 0,30 A
HX 301/HXD 301*
Max. power 210 Watt
0,42 A
HX 302/HXD 302*
Max. power 285 Watt
0,55 A
* Motor protection required (Level II or I)
LX/LXD 1× 230 V
LX/LXD 3×400 V
HX/HXD 3×400 V
= low speed
•• = high speed
I = low speed
II = high speed

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