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IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
Liebert engineers will provide comprehensive support on how to install the XDK.
Extensive material, function and quality checks ensure that you fully benefit from product functions
and a long service life. Nevertheless, this product can produce hazards if it is used incorrectly by
untrained personnel or is not used for the correct purpose.
Read these operating instructions carefully before commissioning the XDK.
The electrical equipment complies with the applicable VDE and accident prevention regulations. Haz-
ardous voltages (higher than 50 VAC or higher than 100 VDC) are present:
• inside the electric box in the unit's housing
• behind the fan cover on the outside of the rear door
Shut down the unit immediately if there are problems with electrical input or cold water supply.
Operate the XDK correctly within the stipulated ratings and with approved equipment.
During all work on and with the unit, observe:
• All applicable regulations (e. g., VDE regulations and other applicable national regulations)
• All applicable accident prevention instructions (BGV)
• All applicable laws on environmental protection
Operate the XDK only if it is in proper working condition. If a malfunction or fault occurs, you must
shut down the unit immediately and notify the responsible facility official or employee.
Resume operating the unit only after the malfunction or fault has been rectified and the XDK’s func-
tion has been re-established.
!
WARNING
Risk of electric shock. Can cause injury or death.
Disconnect all local and remote electric power supplies before working within.
Only qualified personnel may perform repair, maintenance, and cleaning operations.
NOTE
Cleaning and servicing must be performed by qualified personnel. To ensure that the unit
remains safe to use and has a long service life, observe the maintenance and cleaning intervals.
!
CAUTION
Risk of contact with hot surfaces. Can cause burn injury.
Fans, power supplies, PC boards, and other components become extremely hot during unit
operation. Allow sufficient time for them to cool before working within the unit.
Use extreme caution and wear protective gloves and arm protection when working on or near
hot components.