Commissioning Manual EM11A021
DCM601A51 intelligent Touch Manager
82
Scene
Failure mode
Impact to users
Cause
Handling
Notification method
Recovery method
When
How
Leakage
Check
instruction
Manual
Check Start
failure
Leakage Check
cannot be run
•
Outdoor units are
under maintenance
•
Outdoor units are
communication error
•
Outdoor units are
auto charge not
completed
•
Indoor units are
equipment error
•
Indoor units are
under maintenance
•
Indoor units are in
emergency stop
When the
[Check Start]
button is
touched
•
Cause of failure is
displayed as an
error message
•
Cause of failure is
recorded in the
history
Touch the [Check
Start] button again
after recovering the
cause of failure
S c h e d u l e d
Check Start
failure
Leakage Check
cannot be run
At schedule
trigger
•
Cause of failure is
recorded in the
history
Set up the schedule
again after
recovering the cause
of failure
iTM judged that
it successfully
started
Leakage
Check, but
outdoor unit has
not started
Leakage Check
•
Output of incorrect
check results
•
Inability to cancel
“Under Maintenance”
status until 180
minutes have
elapsed
The Check Start
instruction was sent
to an outdoor unit,
but the sending
attempt failed due to
a communication
error and then iTM
was turned OFF
before it judges that
the sending attempt
was failed
When an iTM
start time of
180 minutes
has elapsed
since the
start of
Leakage
Check
•
Maintenance status
is canceled and
Leakage Check
results are made
viewable
Touch the Check
Start button or set up
the schedule again
after recovery from
the cause of failure
iTM judged that
it failed to start
Leakage
Check, but
outdoor unit has
started
Leakage Check
•
Outdoor unit
remains in a
Leakage Check run,
cooling indoor air
unintendedly
•
Ability to re-send
Leakage Check
instruction to
outdoor units under
maintenance
The Check Start
instruction was sent
to an outdoor unit to
start a Leakage
Check run, but
communication with
the outdoor unit was
disconnected before
iTM receives a
response
•
When the
Check Start
instruction was
sent
•
When a
communication
error occurred
•
Leakage Check
Start failure is
recorded in the
history
•
Communication
failure is recorded
into the history
Solve the
communication error
and start a Leakage
Check run again
when an iTM start
time of 180 minutes
has elapsed
iTM judged that
it completed
Leakage
Check, but
outdoor unit has
not stopped
Leakage Check
•
Outdoor unit
remains in a
Leakage Check run,
cooling indoor air
unintendedly
•
Ability to re-send
Leakage Check
instruction to
outdoor units under
maintenance
Communication was
disconnected when
Leakage Check was
stopped, but iTM has
not yet judged that it
is a communication
error
•
When the
Check Stop
instruction was
sent
•
When a
communication
error occurred
•
Leakage Check
Stop failure is
recorded in the
history
•
Communication
failure is recorded
into the history
Solve the
communication error
and start a Leakage
Check run again
when an iTM start
time of 180 minutes
has elapsed
Summary of Contents for DCM601A51
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