Instruction manual

OPERATING_MANUAL_MC20V.DOC 18.03.11 KS Seite 9
2. Putting into operation
On delivery, immediately check if the machine is complete and if there are any
transportation damages. In the case of damages, please contact at once supplier or
forwarding agent.
2.1. Set-up directions
The machine should be placed on clean and dry ground. The ground should be even,
solid and level. The rear side of the machine must remain freely accessible to ensure
sufficient circulation of cooling air. The cooling air temperature must not exceed 35°C
and must not be contaminated. Only after all supply and connecting systems have
been connected, the machine may be put into operation.
2.2. Mains supply
Only trained personnel may connect the machine. Please pay attention to the
nominal voltage and frequency stated on the machine label. The 1-phase current
may differ +/- 10% (maximum) from the nominal value. The mains supply must at
least be furnished with 20 A delay-action fuses (at 1* 230 V AC). The machine is
equipped with a 16 A- -connector when leaving INDUTHERM. All 3 lines (L1, N, PE)
must be connected correctly. Please take notice, that MC20V needs its own power
line from breaker. Do not connect other machines on this power line.
.
2.3. Cooling water
Use two hoses with an outer ø of 6 mm for the cooling water. The water entry
pressure must be at least 2.5 bar and must not be more than 5 bar. The water
drainage must be without pressure. The water entry temperature must be above
10°C and must not exceed 25°C. The concentration of lime in the water must not be
more than 60 mg CaO/l. The cooling water must not be contaminated.
Caution: As long as the crucible temperature is above 100°C, the cooling water
supply must be open; otherwise the inductor insulation could be destroyed. In case
the cooling water supply stops while there is still a hot crucible inside the machine,
the crucible must be removed immediately.