Mitsubishi Electric CITY MULTI PUHY-400YMF-B, Service Handbook, Page: 58 / 204

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(3) Group registration of indoor unit
1) Registration method
• Group registration of indoor unit .................
1
The indoor unit to be controlled by a remote controller is registered on the remote controller.
[Registration procedure]
1 With the remote controller under stopping or at the display of “HO”, continuously press the
FILTER
+
switch (
A
+
B
) at the same time for 2 seconds to change to the registration mode. (See the figure below.)
2
Assign the indoor unit address to “INDOOR UNIT ADDRESS NO.” by operating the (Room temperature
adjustment) (
C
).
Then press the
TEST RUN
switch (
D
) to register. In the figure below, the “INDOOR UNIT ADDRESS NO.” is being
set to 001.
3 After completing the registration, press the
FILTER
+ switch (
A
+
B
) at the same time for 2 seconds to
change to the original ordinary mode (with the remote controller under stopping).
• Remote controller under stopping • “HO” under displaying
Ordinary mode
INDOOR UNIT
ADDRESS NO
ERROR CODE
OA UNIT ADDRESS NO
˚C
INDOOR UNIT
ADDRESS NO
ERROR CODE
OA UNIT ADDRESS NO
˚C
INDOOR UNIT
ADDRESS NO
ERROR CODE
OA UNIT ADDRESS NO
˚C
1
1
Group setting mode
• Confirm the indoor unit address No.
• Confirm the connection of the transmission line.
ON/OFF –
STAND BY
DEFROST ERROR CODE
OA UNIT ADDRESS NO.
CENTRALLY CONTROLLED
CLOCK
ON OFF ˚C
1Hr.
NOT AVAILABLE
˚C
CHECK MODE
FILTER
CHECK
TEST RUN
ON OFF CLOCK
FILTER
CHECK
TEST RUN
REMOTE CONTROLLER
NETWORK
PAR-F25MA
TEMP. TIMER SET
INDOOR UNIT
ADDRESS NO.
INDOOR UNIT
ADDRESS NO
ERROR CODE
OA UNIT ADDRESS NO
˚C
INDOOR UNIT
ADDRESS NO
ERROR CODE
OA UNIT ADDRESS NO
˚C
• Registration complete
• Registration error
Indicates the type of unit
(Indoor unit in this case)
“88” flickers indicating registra-
tion error. (when the indoor unit
registered is not existing)
2
Assign the
address (
C
)
1
Change to the
registration
mode (
A
+
B
)
3
Press the
registration
switch (
D
)
Remote controller
▲
▼
System example
Indoor units
Group
2
+
3