Mitsubishi Heavy Industries FDT28KXE6A Service Manual page 186

Hi-MID
UH-Hi
⑥ Control mode switching
●The control content of indoor units can be switched in following way. (
Switch No. control content
SW1 Indoor unit address (tens place)
SW2 Indoor unit address (ones place)
SW3 Outdoor unit address (tens place)
SW4 Outdoor unit address (ones place)
SW5－1 ON Fixed previous version of Super Link protocol
OFF Automatic adjustment of Super Link protocol
SW5－2 Indoor unit address (hundreds place)
SW6－1 ~ 4 Model capacity setting
SW7－1 ON Operation check, Drain motor test run
OFF Normal operation
⑦ Function of CNT connector of indoor printed circuit board
Indoor units control box
Red
+12
Black
Yellow
CNT
Blue
(Blue 6P)
Brown
Orange
Printed circuit board
Note (1): Do not use the length over 2 meter
●CNT connector (local) vendor model
Connector : Made by molex 5264-06
Terminals : Made by molex 5263 T
⑧Troubleshooting
The operation data is saved when the situation of abnormal operation happen,
and the data can be confirmed by remote controller.
[Operating procedure]
1. Press the button.
The display change " "
2. Once, press the button, and the display change "
3. Press the (SET) button and abnormal operation data mode is started.
4. When only one indoor unit is connected to remote controller, following is
displayed.
① The case that there is history of abnormal operation.
Error code and " " is displayed.
[Example]: [E8] (ERROR CODE)
" " is displayed (blinking indication during data loading).
Next, the abnormal operation data of the indoor unit will be displayed.
Skip to step 7.
②
The case that there is not history of abnormal operation.
" " is displayed for 3 seconds and this mode is closed.
5. When plural indoor units is connected, following is displayed.
①
The case that there is history of abnormal operation.
Error code and the smallest address number of indoor unit among all
connected indoor unit is displayed.
[Example]: [E8] (ERROR CODE)
" " blinking
②
The case that there is not history of abnormal operation.
Only address number is displayed.
6. Select the indoor unit number you would like to have data displayed with the
button.
7. Determine the indoor unit number with the
[Example]: [E8] (ERROR CODE)
" " (The address of selected indoor unit is blinking for 2 seconds.)
[E8] " " (A blinking indication appears while data loaded.)
Next, the abnormal operation data is indicated.
If the indoor unit doing normal operation is selected, "
8. By the button, the abnormal operation data is displayed.
④
Displayed data item is based on Trial operation
Depending on models, the items that do not have corresponding data are not displayed.
※
9. To display the data of a different indoor unit, press the AIR CON No. button, which allows you to go back to the indoor unit slection screen.
10.Pressing the button will stop displaying data.
Pressing the (RESET) button during remote control unit operation will undo your last operation and allow you to go back to the previous screen.
◎ If two (2) remote controllers are connected to one (1) inside unit, only the master controller is available for trial operation and confirmation of operation
data. (The slave remote controller is not available.)
is the default setting)
Note
White
Black
Yellow
Blue
Brown
Orange
Orange
Remote start / stop button or timer point
Remote start/stop kit
●Function
Output 1: Operation output (there is output when unit is in operation.)
Output 2: Heating output (there is output when operation MODE is HEATING.)
Output 3: Thermo ON output
Output 4: Inspection output (there is out put when unit is stopped by error.)
Input 5:
Factory set
Local set
Refer to instruction manuals of "Branching controller", when the indoor unit is
connected to "Heat recovery 3-pipe systems".
Error code of indoor unit
Display on
LED on indoor circuit board
remote
red (checking) green (normal)
controller
Off
Off
Off
".
Off
E1
Not sure
E2
blinking once
E3
blinking twice
E5 blinking twice
E6 blinking once
E7 blinking once
E9 blinking once
E10 Off
E11 Off
E12 blinking once
E16 blinking once
blinking once
E18
blinking once
E19
E28
Off
Over E30 Off
E63 Off
(SET) button.
" is displayed for 3 seconds and address of indoor unit is displayed.
.
183
- -
Butt splice
(Application coverage
0.75～1.25mm 2
)
Common
Output
Output
Output
Output
Input
power
X OFF ON UNIT ON
R5
X ON OFF UNIT OFF
R5
X OFF ON Receiving pulse signal, "ON/OFF"
R5
is reversed.
Content
Continuous blinking
Normal
Off Fault on power, indoor power off or lack phase
Fault on the transmission between indoor
Continuous
blinking circuit board and remote control
Not sure Indoor computer abnormal
Duplication of indoor address No. (can only be detected during operation)
Continuous blinking
Excess number of remote controllers (can only be detected during operation)
Outdoor power off or lack phase
Continuous blinking
There is no corresponding outdoor unit address.
Continuous blinking Fault on outdoor-indoor transmission
Continuous blinking Indoor heat exchange sensor interrupted or short-circuit
Continuous blinking Indoor air inhaling sensor broken or short-circuit
Float SW actions (only with FS)
Continuous blinking
Continuous blinking Excess number of remote controller connections
Continuous blinking The master indoor unit is not set properly.
Indoor unit address SW
Super link
Indoor No. Outdoor No.
New specification
001～127 49
Continuous blinking
0～47 48，49
Old specification
48，49 0～47
Continuous blinking Fan motor abnormal
Continuous blinking
The address configuration fault for master-slave indoor units.
Continuous blinking Configuration fault on running checking model
Continuous blinking Remote controller sensor interrupted
Continuous blinking
Outdoor unit checking (outdoor circuit board LED checking)
Continuous blinking
Emergency stop.
PSB012D922
PSB012D922 A
A