Warranty - Liebert UPS System User Manual

No.1 Fault description
34 Output surge current
Transfer to bypass due to
35
surge
Neighbouring UPS module
requires to
36
bypass mode
37 User's wrong operation
The actual transfer times
exceed the
38
transfer times per hour

10.2 Warranty

We provide 1 year of free service for our UPS (including the battery).
The above warranty shall not apply in the following circumstances:
The battery is provided by user;
Damage resulting from operation not in accordance with the user manual;
Damage as a result of fire, flood, etc.;
Different levels of customized service packages are available with reasonable
charge, including responsive, preventive maintenance, warranty period extension,
etc. For detailed information, please contact the distributor or the local technical
support center.
Chapter 10 Service after Sales
Reason
Surge current occurs in bypass
mode, the system shutdown
The system transfers to bypass
mode due to surge current and
back to inverter mode after load is
decreased
In parallel
some UPS module may require to
transfer to bypass due to surge or
overload, other
transfer to
transfer to bypass after receiving
the signal sent by this UPS
module that requires to transfer to
bypass mode
Wrong operation such as start the
UPS with
bypass switched on
Transfer times exceed the times
permissible set by background. The system
will stay in bypass mode until next
hour.
Avoid applying big load abruptly and
short circuit
Avoid applying load abruptly and the
UPS can recover automatically
operation system,
If the
transfers to bypass mode, and the
modules will
operation condition enables, all the
UPS modules can recover to normal
mode synchronously.
Operate
the maintenance
Manual
Avoid frequent overload
115
Actions to be taken
parallel operation system
with reference to User's