Mitsubishi Electric PUMY-P112VKM1, Руководство по обслуживанию

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Check code
Abnormal points and detection methods Causes and check points
Represents a common error detection
An abnormality detected by the sending side controller when receiving
no ACK from the receiving side, though signal was once sent.The
sending side searches the error in 30 seconds interval for 6 times
continuously.
The previous address unit does not exist since
the address switch was changed while in electric
continuity status.
Decline of transmission voltage/signal caused by
tolerance over on transmission line
·At the furthest end: 200 m
·On remote controller line: (12 m)
Decline of transmission voltage/ signal due to
unmatched transmission line types
·Types for shield line: CVVS, CPEVS
·Line diameter: 1.25
E
or more
Decline of transmission voltage/ signal due to
excessive number of connected units
Malfunction due to accidental disturbance such as
noise or lightning surge
Defect of error source controller
The cause of displayed address and attribute is on the outdoor unit side
An abnormality detected by the indoor unit if receiving no ACK when
transmitting signal from the indoor unit to the outdoor unit.
Contact failure of indoor/outdoor unit transmission
line.
Disconnection of transmission connector (CN2M) on
indoor unit.
Malfunction of sending/receiving circuit on indoor/
outdoor unit.
The cause of displayed address and attribute is on the indoor unit side
An abnormality detected by the remote controller if receiving no ACK
when sending data from the remote controller to the indoor unit.
While operating with multi refrigerant system indoor
units, an abnormality is detected when the indoor
unit transmit signal to the remote controller during
the other refrigerant-system outdoor unit is turned
OFF, or within 2 minutes after it turned back ON.
Contact failure of indoor unit or remote controller
transmission line
Disconnection of transmission connector (CN2M) on
indoor unit
Malfunction of sending/receiving circuit on indoor
unit or remote controller
The cause of the displayed address and attribute is on the remote
controller side
An abnormality detected by the indoor unit if receiving no ACK when
transmitting signal from the indoor unit to the remote controller.
While operating with multi refrigerant system indoor
units, an abnormality is detected when the indoor
unit transmit signal to the remote controller during
the other refrigerant-system outdoor unit is turned
OFF, or within 2 minutes after it turned back ON.
Contact failure of indoor unit or remote controller
transmission line
Disconnection of transmission connector (CN2M) on
indoor unit
Malfunction of sending/receiving circuit on indoor
unit or remote controller
6607
No ACK error
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