Mitsubishi Heavy Industries MHI FDU71VNXVF1 Technical Manual page 52

Model
- - -
Hi - Lo Hi - Me
UH - Me UH - Hi
⑤Control mode switching
The control content of indoor units can be switched in following way. (
●
Switch No. Control Content
SW2 Indoor unit address (0-Fh)
SW5-1
Master/Slave Switching (plural /Slave unit Setting)
SW5-2
Model capacity setting
SW6-1～4
ON Operation check, Drain motor test run
SW7－1
OFF Normal operation
⑥Function of CNT connector of indoor printed circuit board
Indoor units
control box
+12
Red
1 1
Black
2 2
CNT Yellow
3 3
(Blue 6P)
Blue
4 4
Brown
5 5
Orange
6 6
PCB (Printed Circuit Board)
●CNT connector (local) vendor model
Connector : Made by molex 5264 - 06
Terminals : Made by molex 5263T
⑦Troubleshooting
The operation data is saved when the situation of abnormal operation
happen, and the data can be confirmed by remote control.
[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 control, 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 8.
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
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.
Displayed data item is based on ③ 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 controls are connected to one (1) indoor unit, only the master control is available for trial operation and confirmation of operation data.
◎
(The slave remote control is not available.)
is the default setting)
Note (1) 0.3 mm 2 ×2m
0.75 mm
Do not use the length over 2 meter
White
Black
XR1
XR1
Yellow
XR2
XR2
Blue
XR3
XR3
XR4 Brown
XR4
Orange
XR5
Orange
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 Compressor ON output (there is output when compressor is in operation.)
Output 4 Inspection output (there is output when unit is stopped by error.)
Input 5 Remote operation input (Volt-free contact) (Inputted to operate unit)
Error Code of indoor unit
Display on
LED on indoor circuit board
remote
red (checking)
controller
Off
Off
Off
Off
E1
Not sure
Blinking twice
E5
E6
Blinking once
E7 Blinking once
E8 Blinking once
Blinking once
E9
Blinking twice
E10 Off
E14
Blinking for three times
Blinking once
E16
Blinking twice
E19 Blinking once
Blinking once
E20
Blinking twice
E28 Off
Off
Over E30
button.
(SET) button.
" is displayed for 3 seconds and address of indoor unit is displayed.
.
51
- -
2 ×0.2m
Butt splice
(Application coverage
0.75～1.25mm 2 )
Common
Output 1
Output 2
Output 3
Output 4
Input
power
Remote start / stop button or timer point
Content
green (normal)
Continuous blinking Normal
Fault on power, indoor power off or lack
Off
phase
Fault on the transmission between
Continuous blinking
indoor circuit board and remote control
Not sure Indoor computer abnormal
Continuous blinking
Fault on outdoor-indoor transmission
Indoor heat exchange sensor interrupted or
Continuous blinking
short-circuit
Indoor air inhaling sensor broken or
Continuous blinking
short-circuit
The temperature of heat exchange
Continuous blinking
abnormal
Continuous blinking Float SW actions (only with FS)
Continuous blinking Drain pump over current
Excess number of remote control
Continuous blinking
connections
The communication fault for master/slave
Continuous blinking
indoor units
Fan motor (1) abnormal
Continuous blinking
Continuous blinking Fan motor (2) abnormal
Configuration fault on running checking
Continuous blinking
model
Continuous blinking Fan motor (1) abnormal rotation
Continuous blinking Fan motor (2) abnormal rotation
Remote control sensor interrupted
Continuous blinking
Outdoor unit checking (outdoor circuit board
Continuous blinking
LED checking)
PSBO12D994
'12 • PAC-T-178