Mitsubishi Electric LGH-15RX5 -E Instruction Manual page 49

Error
No.
3 Interlock operation
with external device
does not occur.
Note: When two remote controllers are used, the combination of the PZ-60DR-E and PZ-41SLB-E cannot be used.
System checklist when using the M-NET (Table 1-2-2)
Error
No.
1 Lossnay does not inter-
lock with City Multi indoor
unit. (Lossnay cannot be
operated by the ventila-
tion button on the ME
remote controller, MA
remote controller or
MELANS.)
2 Cannot operate using
MELANS or the Lossnay
remote controller.
3 A Lossnay unit should
operate independently by
MELANS or the Lossnay
remote controller, but it
interlocks with different
City Multi units.
Cause
« The interlock mode is set to "ON Interlocked" or
"OFF Interlocked" with the remote controller (PZ-
60DR-E).
« The interlock mode is set to "2" (ON Interlocked) or
"3" (OFF Interlocked) with PZ-41SLB-E.
« When not using PZ-60DR-E and PZ-41SLB-E, the
delay setting switch (SW5-1) on the Lossnay circuit
board is set to ON. (During the delay operation,
LED1 (green) on the Lossnay circuit board will be lit.)
« When not using PZ-60DR-E and PZ-41SLB-E, the
interlock mode setting switches (SW5-7, SW5-8)
on the Lossnay circuit board are set to "ON
Interlocked" or "OFF Interlocked".
« When using multiple Lossnay units, the external
control input signal is connected to a unit set to
"Sub".
« Remote/local switching (CN32) is used.
« Lossnay is not set for interlock operation, or is
set for interlock operation at the wrong
address.
« The length of the M-NET transmission cable
wiring from the outdoor unit or the system's
overall wiring length is longer than specified.
(Longer than 200 m from the outdoor unit,
longer than 500 m between ends.)
« PZ-41LSB-E is connected to Lossnay.
« The address that has been set for the group in
MELANS and the address for the Lossnay are
different.
« The length of the M-NET transmission cable
wiring from the power supply unit or the sys-
tem's overall wiring length is longer than speci-
fied. (Longer than 200 m from the power sup-
ply unit, longer than 500 m between ends.)
« PZ-41LSB-E is connected to Lossnay.
« It has been set for interlock operation with the
City Multi units.
Cause
Action
« Check the Interlock mode setting
with the remote controller (PZ-
60DR-E). (Refer to page C-78)
« Check the Interlock mode setting
with the remote controller (PZ-
41SLB-E). (Refer to page C-91)
« Check the setting of the delay
setting switch (SW5-1) on the
Lossnay circuit board. (Refer to
page C-74)
« Check the setting of the interlock
mode setting switch (SW5-7,
SW5-8) on the Lossnay circuit
board. (Refer to page C-76)
« Connect the external control
input signal to the Lossnay unit
set to "Main."
« When interlocked with external
devices, remote/local switching
(CN32) cannot be used.
Action
« Check the Lossnay address, and
set for an address corresponding
to interlock operation.
« Check the length of the trans-
mission cable wiring.
(Refer to page C-36.)
« Change to the PZ-60DR-E or PZ-
52SF-E remote controller.
(PZ-41SLB-E cannot be used
with the M-NET.)
« Check the registered address in
MELANS.
« Check the length of the trans-
mission cable wiring.
(Refer to page C-36.)
« Change to the PZ-60DR-E or PZ-
52SF-E remote controller.
(PZ-41SLB-E cannot be used
with the M-NET.)
« Cancel the interlock operation
setting.
C-49