Mitsubishi Heavy Industries SRK25GZ-L1 Handbook page 910

FDC-HKX
d) Recording and reset of error
Error display
Error code
Indoor unit inspection lamp
(red)
Outdoor unit inspection lamp
(red)
Notes (1) Priority is in the order of E1 > ... > E10 > ... > 45.
(2) Reset is disabled for 45min. at the error of outdoor unit or compressor overcurrent or the discharge gas temperature error.
e) Reset of error code in memory (when the error has been reset.)
Indoor unit: Press the Timer switch and the Stop switch while the Inspection switch of wired remote controller is held down
or detach the power supply connector (CnW
Outdoor unit: Detach the power supply connector (CNA
supply or turn on and off the SW3-1.
4) Indications with 7-segement indicator
Following data are indicated by changing the setting of selector switches.
SW-4
Inverter operation frequency or error code
0
Heat exchanger temperature
1
Outdoor temperature
2
Dome lower (CM
3
Discharge pipe (CM
4
Discharge pipe (CM
5
CT (CM ) current
6
1
CT (CM ) current
7
2
8
SV1
9
SV2
10 63H
1
11 63H
2
13 Number of connected indoor units
Compressor operation Hz (full load convertion value) Fk
14
Indicates 0 ~ 14 orderly
15
(2) Procedures of trouble diagnosis
When any error occurs, inspect in following sequence. Detailed explanation on each step is given later in this text.
Power supply check
Error
(indoor/outdoor unit)
Replacement or repair of defective
parts Test run/adjustment
Note (1) It means the operation to turn off the power and back on again more than 1 min. later in order to reset the malfunction of microcomputer due to the
effect of power supply conditions or accidental noise.
908
Memory
(1)
• Saves in memory the mode of higher
priority
• Cannot save in memory
• Saves in memory the mode (1) of higher
priority
) of indoor unit PCB and connect again or turn OFF the power.
2
Indication data
) temperature
1
) temperature
1
) temperature
2
Check of inspection display [In-
door/outdoor unit PCB, remote
controller or Indication board]
Check of unit
controller
Reset
• Stop the unit operation by pressing the ON/OFF switch of remote
controller.
• Operation can be started again if the error has been reset.
) of outdoor unit PCB and connect again or turn OFF the power
2
Description
Normally frequency (Hz) is indicated.
When it is abnormal E?? is indicated.
[L] is indicated when the temperature is -26°C or below and the actual
temperature is indicated when it is higher than -26°C and up to 73°C.
[L] is indicated when the temperature is -21°C or below and the actual
temperature is indicated when it is higher than -21°C and up to 43°C.
[L] is indicated when the temperature is 6°C or below and the actual
temperature is indicated when it is higher than 6°C and up to 80°C.
[L] is indicated when the temperature is 30°C or below and the actual
temperature is indicated when it is higher than 30°C and up to 136°C.
[L] is indicated when the temperature is 30°C or below and the actual
temperature is indicated when it is higher than 30°C and up to 136°C. No
indication for 140 type.
Indicates 0 to 47A.
Indicates 0 to 40A. (No indication for 140 type)
0 : OFF 1 : ON
0 : OFF 1 : ON (No indication for 140 type)
0 : Close 1 : Open
0 : Open 1 : Close
Indicates 0 to 16 units.
Indicates frequency [Hz].
Channels 0 ~ 14 are indicated sequencially as follows.
CXX : Channel indication for 1 second.
XXX : Data indication for 3 seconds.
Power supply reset
Check of inspection display [In-
door/outdoor unit PCB, remote
controller or Indication board]
(2)
(1)