TECHNICAL INSTRUCTION Sumitomo Heavy Industries, Ltd.
CSW-71C 15
2 INSTALLATION
2 INSTALLATION
<Warning about electric shock>
This cryocooler includes a high-voltage section. Touching it may result in electric shock. Handle it with extreme
care.
Make sure no power is applied to the compressor unit before starting the installation. Failing to observe this precaution
may result in electric shock.
Do not install the equipment near places subject to condensation such as a watering place. Failing to observe this
precaution may result in electric shock or malfunction.
Do not install the equipment in a dusty environment. Failing to observe this precaution may result in electric shock
or malfunction.
Make sure the power specification of the cryocooler used conforms to the customer's power supply before using the
equipment. Using the cryocooler with a non-conforming power supply may result in electric shock or malfunction.
If the compressor unit used is the CSW-71D (water cooled, high voltage type), pay attention to the setting of the
applicable input supply voltage. The product is shipped with the input supply voltage set to 480V. Before installing
the equipment, be sure to check your supply voltage and change it to the appropriate setting if necessary. Operating
the equipment with your supply voltage different from the setting of the compressor unit may result in electric shock or
malfunction.
Make sure no power is applied to the compressor unit before starting operation when connecting or disconnecting the
cold head power cable. Failing to observe this precaution may result in electric shock.
Be sure to turn off and Lock Out with OFF position the main power of the customer's power source before connecting
or disconnecting the input power cable to the Compressor Unit, and then remove the input power cable from the main
power. Failing to observe this precaution may result in electric shock.
Do not change the setting of the dial above the main power switch of the compressor unit under any circumstances.
Failing to observe this precaution may result in electric shock.
<Warning about explosion, escape of gas>
This cryocooler (cold head, compressor unit, compressor adsorber, flex lines) contains a high-pressure (about 1.62
MPa helium gas sealed in. Hitting the equipment with a sharp edge or touching it with a pointed object may cause
explosion or escape of gas. Handle the equipment with extreme care.
The minimum bending radius of the flex lines is 150mm (intermediate), 300 mm (terminal). Bending the flex lines at
a smaller angle may cause explosion or escape of gas, and so this should be avoided.
Do not disassemble the equipment for purposes other than maintenance specified in this service manual under any
circumstances. Disassembling the equipment may result in electric shock, explosion or escape of gas.
Install the cryocooler in the ventilated area, otherwise it may result in asphyxiation in case the helium gas is purged or
leaked.
Do not put the heat sensitive or flammable object neat the Compressor Unit, or result in fire, injury or malfunction of the
system.
WARNING
WARNING
WARNING
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