Cincinnati Sub-Zero ZP Series, Installation, Operation & Maintenance Manual

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SAFETY - PRECAUTIONS AND FEATURES
4
ELECTROSTATIC DISCHARGE SENSITIVE DEVICES
This manual contains maintenance procedures for parts and assemblies
sensitive to damage by electrostatic discharge (ESD). Parts or
assemblies are identified as ESD sensitive by the symbol to the left.
The following are general precautions that should be observed when
handling ESD sensitive devices or assemblies:
1. Handling ESD sensitive devices at approved field force protective
work stations.
2. Keep work area free of static generators, such as plastic cups, foam
cushions, and rayon or polyester apparel.
3. Avoid static-producing activities, such as wiping feet and removing or
putting on smocks while in the work area.
4. Use ESD protective equipment, such as grounded work benches,
grounded tools and test equipment, conductive flooring, air ionizers,
personnel ground straps with 1 megohm minimum resistance, and
protective apparel whenever possible.
5. Store and transport ESD sensitive devices in protective bags, tote
boxes, or trays. Use original packaging whenever possible.
6. Remove power and signals before removing or installing ESD
sensitive devices or assemblies.
7. Handle ESD sensitive circuit card assemblies by their shunt bars or
edges. Do not touch parts, terminals, or circuitry. Do not use canned
coolant for fault isolation.