Daikin SkyAir FCQ18PVJU, Installation Manual

Page: 14 / 16

13 English
TEST OPERATION 13.
Refer to the section of “FOR THE FOLLOWING ITEMS,
TAKE SPECIAL CARE DURING CONSTRUCTION AND
CHECK AFTER INSTALLATION IS FINISHED.” on page 3.
Make sure if the service lids are closed on the indoor and •
outdoor units.
After fi nishing the construction of refrigerant pipe, drain pipe
•
and electric wire, conduct the check operation referring to
the installation manual of the outdoor unit.
The operation lamp of the remote controller will fl ash when a
•
malfunction occurs. Check the malfunction code on the liquid
crystal display to identify the point of trouble. An explanation
of malfunction codes and the corresponding trouble is pro-
vided in the installation manual of the outdoor unit.
If any of the items in Table 6 are displayed, there may be a
problem with the wiring or power, so check the wiring again.
Table 6
Remote control display Content
“ ” (under
centralized control) is lit up.
There is a short circuit at the •
FORCED OFF terminals (T1, T2)
“U4” is lit up
“UH” is lit up
The power on the outdoor unit is off. •
The outdoor unit has not been wired •
for power supply.
Incorrect wiring for the transmission
•
wiring and / or FORCED OFF wiring.
The transmission wiring is cut.
•
No display
The power on the indoor unit is off. •
The indoor unit has not been wired for •
power supply.
Incorrect wiring for the remote
•
controller wiring, the transmission
wiring and / or the FORCED OFF
wiring.
The remote controller wiring is cut.
•
If “U3” is lit up, the malfunction code shows the check •
operation has not been performed yet.
TEST OPERATION 13-1
Make sure if the gas side and the liquid side stop valves (1)
are open.
Electrify crank case heater for 6 hours.
(2)
Confi rm function of unit according to the operation manual. (3)
NOTE
Refer to the diagnoses below if the unit does not operate •
properly.
CAUTIONS FOR SERVICING 13-2
With the power on. Troubles can be monitored on the
remote controller or the LED’s on the PC board of the
indoor unit.
Trouble shooting with the display on the liquid crystal display
„
remote controller.
With the wired remote controller. (NOTE 1) (1)
When the operation stops due to trouble, operation lamp
fl ashed, and “
” and the Malfunction code are indicated
on the liquid crystal display. In such a case, diagnose the
fault contents by referring to the table on the Malfunction
code list it case of group control, the unit No. is displayed
so that the indoor unit no with the trouble can be recog-
nized. (NOTE 2)
With the wireless remote controller. (2)
(Refer also to the operation manual attached to the wire-
less remote controller)
When the operation stops due to trouble, the display on
the indoor unit fl ashes. In such a case, diagnose the fault
contents with the table on the Malfunction code list looking
for the Malfunction code which can be found by following
procedures. (NOTE 2)
Press the INSPECTION /TEST OPERATION button, (1)
“ ” is displayed and “
0
” fl ashes.
Press the PROGRAMMING TIME button and fi nd the (2)
unit No. which stopped due to trouble.
Number of beeps 3 short beeps Perform all the follow-
ing operations
1 short beep Perform (3) and (6)
1 long beep No trouble
Press the OPERATION MODE SELECTOR button (3)
and upper fi gure of the Malfunction code fl ashes.
Continue pressing the PROGRAMMING TIME button
(4)
unit it makes 2 short beeps and fi nd the upper code.
Press the Operation selector button and lower fi gure
(5)
of the Malfunction code fl ashes.
Continue pressing the PROGRAMMING TIME button
(6)
unit it makes a long beep and fi nd the lower code.
A long beep indicate the Malfunction code. •
NOTE)
In case wired remote controller. Press the INSPECTION / 1.
TEST OPERATION button on remote controller, “ ” starts
fl ashing.
Keep down the ON/OFF button for 5 seconds or longer in
2.
the inspection mode and the above trouble history disap-
pears, after the trouble code goes on and off twice, followed
by the code “
00
”(normal).
The display changes from the inspection mode to the
normal mode.
MALFUNCTION CODE LIST 13-3
For places where the Malfunction code is left blank, the •
“ ” indication is not displayed. Though the system contin-
ues operating, be sure to inspect the system and make
repairs as necessary.
Depending on the type of indoor or outdoor unit, the mal-
•
function code may or may not be displayed.
Code Malfunction/Remarks
A1 Indoor unit’s PC board faulty
A3 Drain water level abnormal
A6 Indoor fan motor overloaded, overcurrent or locked.
A7 Air fl ow direction adjust motor is fault.
A9 Drive for electronic expansion valve is fault.
AJ
Type set improper
Capacity data is wrongly preset. Or there is nothing
programmed in the data hold IC.
C4 Sensor R2T for heat exchanger temperature is fault.
C5 Sensor R3T for heat exchanger temperature is fault.
C9 Sensor R1T for suction air temperature is fault.
CJ
Sensor for remote controller is fault.
The remote controller thermistor does not function, but
the system thermo run is possible.
E3 High pressure abnormal (outdoor unit)
E4 Low pressure abnormal (outdoor unit)
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