190.210-IOM (FEB 20)
Page 12
LAZERWELD II PLATE HEAT EXCHANGER
OPERATION
6. When all air is expelled, close the air vent.
7. Repeat steps 1 to 6 for the second media.
UNIT IN OPERATION
Make adjustments of flow rates slowly in order to protect
the system against sudden and extreme variations of tem-
perature and pressure.
During operation, check that media temperatures and
pressures are within the limits stated on the LZWII drawing
and identification plate.
SHUT-DOWN
If several pumps are included in the system, make sure
you know which one to stop first.
1.
Slowly close the valve controlling the flow rate of the
pump you are about to stop.
2. After closing the valve, stop the pump.
3. Repeat steps 1 to 2 for the other side for the second
media.
4. If the LZWII is shut down for several days or longer,
drain it. Also drain if the process is shut down and the
ambient temperature is below the freezing temperature
of the media. Depending on the media processed, rinse
and dry the heat exchanger cassettes and connections.
Closed
Closed
