Toshiba RAV-RM301SDT-E Service Manual page 75

Calling of trouble history
<Contents>
The trouble contents in the past can be called.
<Procedure>
1
Push + buttons simultaneously for 4 seconds or
more to call the service check mode.
Service Check goes on, the CODE No.
the content of the latest alarm is displayed.
The number and trouble contents of the indoor unit in which an
trouble occurred are displayed.
2
In order to monitor another trouble history, push the set
temperature
history No. (CODE No.)
01
CODE No. (Latest) → CODE No.
NOTE : 4 trouble histories are stored in memory.
3
Pushing button returns the display to usual display.
REQUIREMENT
Do not push button, otherwise all the trouble histories of the indoor unit are deleted. If the trouble histories
are deleted by pushing CL button, turn off the power supply once and then turn on the power supply again.
When the trouble which is same as one occurred at the last before deletion continuously occurs again, it may
not be stored in memory.
(Group control operation)
In a group control, operation of maximum 8 indoor units can be controlled by a remote controller.
Twin, triple or double twin of an outdoor unit is one of the group controls.
The indoor unit connected with outdoor unit (Individual/Header of twin) controls room temperature according to
setting on the remote controller.
<System example>
OUT
IN
1-1
Remote controller
1. Display range on remote controller
The setup range (Operation mode/Air volume select/Setup temp) of the indoor unit which was set to the
header unit is reflected on the remote controller.
1) Concealed duct high static pressure type is not set up on the header unit.
• If the Concealed duct high static pressure type is the header unit:
Operation mode: [Cooling/Heating AUTO] [HEAT] [COOL] [FAN] and no [DRY]
Air volume select: [HIGH]
• When the operation mode is [DRY], [FAN] stops in concealed duct high static pressure models.
2. Address setup
If there is no serial communication between indoor and outdoor when the power is turned on, it is judged as
follower unit of the twin. (Every time when the power is turned on)
• The judgment of header (wired) / follower (simple) of twin is carried out every time. It is not stored in
nonvolatile memory.
Turn on power of the indoor unit to be controlled in a group within 3 minutes after setting of automatic address.
If power of the indoor unit is not turned on within 3 minutes (completion of automatic address setting), the
system is rebooted and the automatic address setting will be judged again.
1) Connect indoor/outdoor connecting wire surely.
2) Check line address/indoor address/group address of the unit one by one.
Especially in case of twin, triple, double twin, check whether they are identical system address or not.
3) The unit No. (line/indoor gout address) which have been set once keep the present status as a rule if the
unit No. is not duplicated with one of another unit.
01 01 01 01 01
/ buttons to change the trouble
04
(Old)
OUT OUT
Header
IN IN
2-1
is displayed, and then
2
OUT
IN
3 1 -
– 75 –
TEMP. ON / OFF
TIMER SET FAN
TIME SAVE A A
FILTER L L
RESET TEST SET CL SWING/FIX UNIT LOUVER
<Operation procedure>
1 2
3 1
Returned to usual display
OUT
IN
4 1 -
MODE
VENT
T
3
8 1 -
Max. 8 units