Toshiba MMU-UP0071MH-UL Service Manual page 34

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 Set data [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
Filter service life
17 Display of < Preparing to operate > Displayed on the remote controller
[Preparing to
1) When the following check codes are indicated.
operate]
[Preparing to
heat]
2) During Forced Thermostat-OFF
3) When the indoor unit which is in the condition of 1) or 2)
4) The indoor fan stops because the system performs
< Preparing to heat > 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
Set
data header indoor unit
Not including the state of follower units
79
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.
Compact 4-way Cassette type
Type
Slim Duct
• Open phase of power supply wiring [P05] was detected.
• There is an indoor unit that detected the indoor o
[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.
keeps being in 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.
ON/OFF
setting
: Operation impossible)
Setting data
0000 (Factory default)
0001
2500H
Floor Console Exposed type
Floor Console Recessed type
Operation on remote controller
Operation Timer
selection setting setting
– 34 –
Remarks
Connector CN61
(Refer to 8-3-1,8-3-2.
Optional connector
specifications of indoor
P.C. board (MCC-1643,
MCC-1744)
Be sure to change the
setting data while
operation stops.
150H
• < Preparing to
operate
No display for wireless
type remote controller
verflow
• <Preparing to heat
display
Temp. Fan speed Air direction
setting setting
> display
>