Mitsubishi Electric 500YEMK-A, Service Handbook

Page: 57 / 208

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4) Deletion of information on address not existing
• Deletion of information on address not existing ...................................................
This operation is to be conducted when “6607” error (No ACK error) is displayed on the remote controller caused
by the miss setting at test run, or due to the old memory remained at the alteration/modification of group
composition, and the address not existing will be deleted.
Note: The connection information (connection between indoor unit and outdoor unit) on the refrigerant system
can not be deleted.
An example to delete the system controller of “250” from the indoor unit of “007” is shown below.
[Operation procedure]
With the remote controller under stopping or at the display of “HO”, continuously press the + switch
at the same time for 2 seconds to change to the registration mode.
Operate switch (
G
) for the interlocked setting mode ( ii ). (See the figure below.)
Assign the unit address existing to “OA UNIT ADDRESS No.” with the (TIMER SET) switch (
H
), and press
switch to call the address to be deleted. (See the figure below.) As the error display on the remote controller is
transmitted from the indoor unit, “OA UNIT ADDRESS No.” is used as the address of the indoor unit.
usually
Press the switch (
F
) twice. (See the figure below.)
After completing the deletion, continuously press the + switch at the same time for 2
seconds to return to the original ordinary mode (with the remote controller under stopping).
INDOOR UNIT
ADDRESS NO
ERROR CODE
OA UNIT ADDRESS NO
˚C
INDOOR UNIT
ADDRESS NO
ERROR CODE
OA UNIT ADDRESS NO
˚C
(Alternative
display)
INDOOR UNIT
ADDRESS NO
ERROR CODE
OA UNIT ADDRESS NO
˚C
INDOOR UNIT
ADDRESS NO
ERROR CODE
OA UNIT ADDRESS NO
˚C
(Alternative
display)
❇
INDOOR UNIT
ADDRESS NO
ERROR CODE
OA UNIT ADDRESS NO
˚C
INDOOR UNIT
ADDRESS NO
ERROR CODE
OA UNIT ADDRESS NO
˚C
(Alternative
display)
❇
When both indoor
unit and interlocked
unit addresses are
existing
Deletion of
address not
existing
Set the address (
H
)
Press the deletion switch
• Deletion completed
• Deletion completed
1 2
+
Press the switch for
confirmation (
E
)
ON/OFF
TEMP
FILTER
CHECK TEST
ON OFF CLOCK
PAR-F27MEA
TIMER SET
FILTER
FILTER
ON OFF
CLOCK
∞
1
5
4
3
2
3
3
3
1
2
(
F
)twice
(
A
+
B
)
(
E
)
(
A
+
B
)
❇