Laird Nextreme NRC1200 Series, Руководство пользователя

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9
Guidelines Regarding Electrical Equipment
DANGER
Electrical danger
Work on electrical installations must be carried out only by trained and authorized
electricians.

Observe all regional regulations when connecting electrical equipment to mains. Be
aware of the connection diagram information (Refer to Wiring Diagram ).

Electrical shock hazards exist if the electrical installations are defective or the
insulation fails during operation.

Switch off and disconnect the unit from the electrical mains and follow Lockout-Tagout
procedures whenever conducting service work.

Ensure continuity to ground and isolation from power lines.

Any changes regarding the operation of the unit can have an influence on safe
operation. All intended changes should be authorized by the manufacturer prior to
implementation.

Keep unauthorized persons away from the working area.
Inadmissible Operating Conditions
Operating the unit under improper conditions is not permitted as the operator’s safety cannot be
guaranteed. Some operating conditions not permitted are the following:

Using the unit for a purpose other than its intended use

Using of the unit when any part of it is damaged, not working properly, the electrical installation is
not correct, or the electrical insulation is damaged

Protective or safety equipment is non-functional, defective, improperly installed, or missing

The unit or operating parameters were modified without consulting the manufacturer

Operation in areas exposed to explosion hazards

Operation without a cooling media not recommended by the manufacturer

Any equipment connected to RS232 must be certified to IEC 61010-1/ IEC 60950-1/ IEC 62368-
1 should be connected to the DB-9 port.

Only Laird approved cable must be used to connect Flow meter to the unit. Refer to Spare Parts
to order this cable.

High Temperature Limit on Coolant Return - The maximum allowable coolant return (inlet) is
50°C. It is the responsibility of the customer to ensure that this limit is not exceeded. Laird
Thermal Systems recommends a thermal shutoff be used in conjunction with the equipment
being connected to the Recirculating Chiller. Methods include:
o
A method to turn off the heat load from injecting additional heat into the coolant. This
will allow the Recirculating Chiller to reduce the temperature of the coolant further
until stable.
o A method that stops or restricts the coolant flow into the Recirculating Chiller. This will
result in a Coolant High Pressure alarm, which will shut down the system for safety.
o
A method that interrupts the power to the Recirculating Chiller.
If any of these methods are activated, please reference the Alarms section.
NOTE
The manufacturer is not liable for damage occurring when using the unit in a way it was not
intended. This also voids Laird Thermal Systems’ warranty.
Specialized Knowledge
NOTE
Authorized persons
Servicing the unit is limited to individuals with adequate knowledge and training pertaining to the
required area of service. In some circumstances licensed professionals are required to perform the
required service work.