23
Liebert
®
MC - UM - 10019237MAN_ENG - 31.03.2022
12. Dismantling the unit
The machine has been designed and built to ensure continuous operation.
The working life of some of the main components, such as the fan, depends on the maintenance that they receive.
The machine must be dismantled if it is moved to another site, or at the end of its technical and operational life.
NOTICE
The unit contains substances and components hazardous for the environment (electronic components, lead gel
battery, refrigerating gases and oils).
At the end of the useful life, when the unit is dismantled, the operation must be carried out by specialized refrigerating
technicians.
The unit must be delivered to suitable centers specialized for the collection and disposal of equipment containing
hazardous substances.
The lead gel battery, refrigeration uid and the lubricating oil inside the circuit must be recovered according to the laws
in force in the relevant country.
12.1 Safety Instructions
Personnel WARNING
Only authorized personnel is allowed to do dismantling operations.
The authorized personnel must be properly trained and qualied, wear appropriate personal
protective equipment and use adequate tools.
Electric
System
WARNING
Unit contains potentially lethal voltage in some circuits.
Risk of arc ash and electric shock.
Can cause injury or death.
• Open all local and remote unit electric power disconnect switches, verify with a voltmeter that
power is OFF and wear protective equipment per local standard before working within the
electric control enclosure.
WARNING
The electric connection enclosures, the fan speed control and the EC fan enclosures can retain a
stored high-voltage electrical charge for up to 10 minutes.
Risk of electric shock.
Can cause serious injury or death.
Before working within the unit electric connection enclosures or working within the fan speed
control and the EC fan enclosures proceed as follows:
• open all local and remote unit electric power disconnect switches
• wait 10 minutes
• verify with a voltmeter that power is OFF
Only properly trained and qualied personnel may perform repair, maintenance and cleaning.
Personal
Protective
Equipment
CAUTION
The microchannel condeser is made of plates and ns, which may have sharp edges and blurrs.
• Always wear cut resistant gloves when operating on the condenser.