TECHNICAL INSTRUCTION Sumitomo Heavy Industries, Ltd.
CSW-71C 16
2 INSTALLATION
<Caution against misoperation>
Do not tilt it by more than 30 degrees when carrying the compressor unit. Tilting it by more than 30 degrees may
cause oil sealed in the unit to move, preventing the cryocooler from operating normally.
This cryocooler is intended for the exclusive use indoors. It cannot be used outdoors. Failing to observe this
precaution may prevent the cryocooler from operating normally.
Do not use inverter for the main power source of the compressor unit. Operating with inverter may result in the
damage or malfunction of the compressor electric circuit.
Avoid using the transformer for the main power source of the compressor unit. If the transformer is installed at the
upstream of the unit, lacking phase protection circuit with the cryocooler occurs in a malfunction. That may result in
misoperation or malfunction. When using the transformer, install the other lacking phase protection device in
upstream of the transformer.
Do not get on the compressor unit or put an object on top of it. Failing to observe this precaution may prevent the
cryocooler from operating normally or cause injury.
Secure enough space around the compressor unit for heat radiation and maintenance. Failing to secure enough
space may result in misoperation or malfunction. (See the technical instruction of the compressor unit used, for
details.)
If the compressor unit used is a water-cooled type (CSW-71C, CSW-71D), use cooling water with appropriate
temperature, flow rate and water quality. Using inappropriate cooling water may result in misoperation or
malfunction. (See the technical instruction of the compressor unit used, for details.)
If the compressor unit used is a water-cooled type (CSW-71C, CSW-71D), do not use the demineralized water for
cooling water. Using demineralized water for cooling water may result in water leakage or malfunction. (See the
technical instruction of the compressor unit used, for details.)
Be sure to check the flat rubber gasket of the self seal coupling of the cold head and compressor unit for dirt, dust or
to see whether the flat rubber gasket is attached correctly, before connecting the flex lines. Connecting the flex lines
with an abnormal flat rubber gasket setting may cause escape of gas.
This cryocooler (cold head, compressor unit, compressor adsorber, flex lines) is shipped with a helium gas at about
1.62 MPa sealed in. Be sure to adjust the pressure to an appropriate value according to the cold head used before
operating the equipment. Using the cryocooler at an improper pressure may cause misoperation.
Pay attention to the contamination when charging a helium gas. The contamination may result in occurrence of the
noise from the Cold Head or decreasing the cooling capacity.
CAUTION
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