C30VR Compressor Installation, Operation, Maintenance and Troubleshooting
6-2
ULVAC CRYOGENICS INCORPORATED
a water drain line diverged from the water return line on the equipment in order to release
water pressure in the compressor.
1. Stop supplying cooling water to the compressor unit and stop the water flow.
2. Disconnect the water supply pipe from the “COOLING WATER IN” fitting on the
compressor. DO NOT disconnect the water pipe from the “COOLING WATER OUT”
fitting. Note that cooling water might drip from the pipe when disconnecting it.
3. Connect a hose for air blowing to the “COOLING WATER IN” fitting.
4. Increase the air pressure inside the hose from 0 to 0.2MPaG. Keep air blowing for
more than 30 seconds to blow out the water inside the compressor (The water goes
out from the compressor through the water pipe at the “COOLING WATER OUT”
fitting).
5. Stop air blowing.
6. Disconnect the hose for air blowing from the “COOLING WATER IN” fitting.
7. When transferring the compressor to other location, disconnect the water pipe from
the “COOLING WATER OUT” fitting as well.
6.1.2
Disconnecting flexible hoses
To disconnect flexible hoses from the compressor, refer to “Section 4.3 Connecting and
disconnecting helium flexible hoses”.
Put the dust caps or dust plugs back on the compressor and the removed flexible hoses
to keep them in storage.
6.1.3 Disconnecting
cables
Disconnect the refrigerator cable from the refrigerator. It is not necessary to disconnect
the refrigerator cable from the compressor.
Disconnect input-output remote cables from the compressor side.
Disconnect the input power cable from the compressor. Refer to “Section 4.6.1
Connecting the input power cable” and disconnect the cable in reverse order.
6.1.4
Transferring the compressor
Unlock the casters of the compressor.
When transferring the compressor, refer to warnings and precautions in “Section 3.3
Unpacking”.
6.2 Maintenance in storage
The compressor must be stored in a place indoors and meet the requirements in “Section
1 Table 1-5 Installation environment and operation requirements”. Also the storage
Do not perform the removing procedure above when the compressor is turned ON or
cooling water is being supplied. Failure to observe this warning may result in severe
bodily injury or fatal accident.
CAUTION
Содержание C30MVER
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