Safety
2
WARNINGS
AVOID ELECTRIC SHOCK.
This equipment must only be connected to a supply mains switch
with protective earth. All electrical supply equipment must meet applicable codes and be
installed by qualified personnel.
If this equipment is modified, appropriate inspection and testing must be conducted to ensure
safe use of equipment.
Disconnect the power to the compressor before troubleshooting the electrical components.
Permit only qualified electrical technicians to open electrical enclosures, to perform electrical
checks or to perform tests with the power supply connected and wiring exposed. Failure to
observe this warning can result in serious injury or death.
AVOID INJURY.
Never use compressed helium gas from a cylinder without a proper regulator.
Overpressure can cause serious injury if the system equipment ruptures.
During operation, some surfaces under the compressor’s cover become hot. Allow the
compressor to cool for 1/2 hour after shutdown before removing the cover for maintenance.
Always wear eye protection when handling pressurized gas lines and other pressurized
equipment. Never apply heat to a pressurized gas line or other pressurized components.
Disconnect gas lines only when the compressor is stopped. Disconnecting the cold head while
it is cold can create excessively high internal pressure as the gas warms. Material failure and
uncontrolled pressure release can cause serious injury.
Use two wrenches when disconnecting a gas line coupling to avoid loosening the cold head or
compressor coupling. Gas pressure can project the coupling with enough force to cause
serious injury.
The compressor is charged with helium gas. Except when disconnecting the adsorber or the
gas lines, vent both supply and return Aeroquip couplings to atmospheric pressure before
disassembly. Uncontrolled pressure release can cause serious injury.
Always vent a gas-charged component before beginning to disassemble its couplings. Gas
pressure can launch a loose coupling with enough force to cause serious injury.
The adsorber is charged with helium gas. Follow the used adsorber venting procedure for safe
disposal of the used adsorber.
CAUTIONS
PRESERVE YOUR WARRANTY.
Modification to equipment without the consent of the
manufacturer will void the warranty.
Specifications require the use of 99.999% pure helium gas. Using a lesser quality of helium can
damage the system and void the warranty.
Summary of Contents for F-70H
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Page 40: ...Troubleshooting 36 Figure 4 F 70H Compressor Wiring Diagram...
Page 41: ...Troubleshooting 37 Figure 5 F 70H Compressor Wiring Schematic...
Page 42: ...Troubleshooting 38 Figure 6 F 70L Compressor Wiring Diagram...
Page 43: ...Troubleshooting 39 Figure 7 F 70L Compressor Wiring Schematic...
