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No.
Item
15
Alarm output
The alarm output from the indoor P.C. board is output in each
setup
indoor unit during group control, but it can be set so as to be
output in the header unit and follower units.
Following the table below, register the setting data in DN Code "79".
DN
79
16
Display of filter
1) The filter sign is displayed with LC by sending the filter-
sign [
]
(Not provided to
the wireless
type)
2) The integrated timer is cleared when the filter-reset signal is
17
Display of
< READY> Displayed on the remote controller
[READY]
1) When the following check codes are indicated
[HEAT READY]
2) During Force Thermostat-OFF
3) The above indoor units that cannot operate stay in
4) The indoor fan stops because the system performs
<HEAT READY> Displayed on the remote controller
The indoor fan stops in order to prevent discharge of cool air
when heating operation started or during heating operation.
(including the defrost operation during thermostat-OFF)
18
Selection of
1) Selection of the contents that can be operated by the
central control
mode
2) Setting contents
Operation from
central controller
Individual
[Central 1]
[Central 2]
[Central 3]
[Central 4]
(
: Operation possible
Outline of specifications
Alarm output of the
header indoor unit
Not including the state of follower units
Including the state of follower units
reset signal to the remote controller when the specified
time (150H/2500H) elapsed as a result of integration of the
operation time of the indoor fan.
received from the remote controller.
In this time, if the specified time elapsed, the counted time is
reset and the liquid crystal display is deleted.
• Open phase of power supply wiring [P05] was detected.
• There is an indoor unit that detected the indoor overflow
[P10].
• There is an indoor unit that detected the interlock alarm
[L30].
• [COOL/DRY] operation is unavailable because the other
indoor unit operates with [HEAT] mode.
• [HEAT] operation is unavailable because COOL priority
(SW11-bit1 of the Outdoor I/F P . C. board is ON) is set and
the other indoor unit operates with [COOL/DRY] mode.
Thermostat-OFF status.
[Recovery operation for heating refrigerant (Oil)].
remote controller at the indoor unit side is possible
according to setting at the central controller side.
Operation on remote controller
ON/OFF
Operation
setting
selection
: Operation impossible)
Setting data
0000 (Factory default)
0001
Timer
Temp.
Fan speed Air direction
setting
setting
setting
- 23 -
Remarks
Connector CN61
(Refer to 8-3-1,8-3-2. Optional
connector specifications of
indoor P.C.board
(MCC-1643
Be sure to change the setting
data while operation stops.
• < READY
> display
No display for wireless
type remote controller
• <HEAT READY
>
display
setting
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Table of Contents
Troubleshooting
