Biral MX 12 Instructions D'installation Et D'entretien page 38

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3. Intended application
Biral circulation pumps of the series
MX / M / SX
are use to circulate liquids in
– hot water heting systems (MX/M)
– enclosed industrial circulation systems (MX/M)
– thermal solar installations (SX)
The pumps may not be used in the food-processing industry
nor for drinking water.
No combustible or explosive liquids must
be transported.
The liquid must not contain any solid matter,
fibres or mineral oils.
3.1 Medium delivered
In heating installations the medium delivered should comply
with the requirements of heating water according to VDI 2035.
Water/glycol mixture permissible with up to 50% glycol.
3.2 Operating temperature/Operating pressure
Permissible water temperature:
Permissible operating pressure:
Ambient temperature:
Noise level:
Protection:
Tensione di alimentazione:
4. Assembly
4.1 Flushing out the heating system (with pump removed)
In order to avoid undesirable interruptions in operation
and non-starting of the pump after long periods of standstill,
it is recommended for a newly-installed or converted heating
system that the system be drained, flushed through well
and then refilled again after heating up for the first time.
The system must comply with the latest state of technology.
(Positioning of expansion vessel or initial safety feed.)
4.2 Antifreezers (as far as necessary)
Important: Flush the piping network through particularly well
before the antifreeze mixture is filled.
Follow the antifreeze supplier's instructions with respect to mixing
and filling, as well as the choice of material in the piping and
apparatus network (pay particular attention to protection against
corrosion!). Water/glycol mixture up to 50% glycol ratio permissible.
Over 10% glycol ratio, correct the pumping data of the pumps
accordingly.
4.3 Installation
Installation only after completion of all welding and soldering work.
Be sure to avoid any water dripping onto the pump motor
and especially the terminal box.
Install the pump casing stressfree in the system.
–20 °C to 110 °C*
max. 10 bar
max. 40 °C
<70 dB (A)
IP 44
1×230 V +6%-10%, 50 Hz
* SX: for brief periods 140 °C