Fujitsu AU*A12LALN Service Instruction page 128

5
DECORATION PANEL
2. INSTALL PANEL TO INDOOR UNIT
INSTALLATION (1) Install the decoration panel on the indoor unit.
1. REMOVE THE INTAKE GRILLE
"DRAIN" mark "PIPE" mark
(1) Slide the 2 grille hook
* Align the stamped marks on the decoration panel against the pipe and the drain
of the indoor unit.
Grille hook
(2) Open the intake grille and remove.
Screw
CAUTION
Use only the supplied screws to install the decoration
panel.
Indoor unit
Cealing
Sealant
Decoration panel
No gap between cealing and
decoration panel around entire
periphery
7
TEST RUN TROUBLESHOOTING
[Troubleshooting with the indoor display]
CHECK ITEMS
Troubleshooting at the display is possible either on the wired or wireless
(1) Is operation of each button on the remote control unit normal? remote control.
(2) Does each lamp light normally?
FILTER LAMP TIMER LAMP
(3) Do not air flow direction louvers operate normally?
(ORANGE)
(GREEN)
(4) Is the drain normal?
(5) Is there any abnormal noise and vibration during operation?
• Do not operate the air conditioner in the running state for a long time.
CHECKING DRAINAGE
To check the drain, remove the water cover and fill with 1rof water as
shown in the figure.
The drain pump operates when operating in the cooling mode.
MANUAL AUTO
Drain pipe
Wire cover Screw
The OPERATION, TIMER and FILTER lamp operate as follows table ac-
cording to the error contents.
OPERATION
Error contents
lamp (RED)
Indoor signal error
Wired remote controller abnormal
Indoor room temperature sensor error
(2 times)
Indoor heat exchanger temperature
(2 times)
sensor (middle) error
Indoor heat exchanger temperature
(2 times)
sensor (inlet) error
Float switch operated
(2 times)
Watering pot
Outdoor discharge pipe temperature
(3 times)
sensor error
• Test running Outdoor heat exchanger temperature
(3 times)
sensor (outlet) error
When the air conditioner is run by pressing the remote control unit test
Outdoor temperature sensor error
run button, the OPERATION and TIMER lamps flash slowly at the same (3 times)
time. Compressor temperature sensor error
(3 times)
2-way valve temperature sensor error
(3 times)
[Using the wireless remote control]
3-way valve temperature sensor error
(3 times)
• For the operation method, refer to the operating manual.
Outdoor heat exchanger temperature
• The outdoor unit may not operate depending on the room temperature. (3 times)
sensor (middle) error
In this case, press the test run button on the remote control unit while
Indoor manual auto switch abnormal (4 times)
the air conditioner is running. (Point the transmitter section of the re-
Power supply frequency detection er-
mote control unit toward the air conditioner and press the test run but-
(4 times)
ror
ton with the tip of a ball-point pen, etc.)
IPM protection (5 times)
Transmitter section
CT error (5 times)
Compressor location error (5 times)
Outdoor fan error (5 times)
Connected indoor unit abnormal (5 times)
Outdoor unit computer communication
(5 times)
error
Indoor fan abnormal (6 times)
Discharge temperature error (7 times)
Test run button
Exessive high pressure protection on
• To end test operation, press the remote control unit START/STOP button.
(7 times)
cooling
(When the air conditioner is run by pressing the test run button, the
4-way valve abnormal
OPERATION indicator lamp and TIMER indicator lamp and TIMER in- (7 times)
dicator lamp will simultaneously flash slowly.) Pressure switch abnormal
(7 times)
Compressor temperature error
(7 times)
[Using the wired remote control]
Active filter abnormal
(8 times)
• For the operation method, refer to the operating manual.
PFC circuit error
(8 times)
(1) Stop the air conditioner operation.
: 0.5s ON/0.5s OFF (Flash) : OFF
(2) Press the master control button and the fan control button simultane-
ously for 2 seconds or more to start the test run.
Test run display
(3) Press the start/stop button to stop the test run.
6
(2) Connect the connector.
Wire (display): WHITE
Wire (louver): WHITE
Wire (louver): RED
• Follow the instructions in the Local Setup Procedure, which is supplied
with the remote control, in accordance with the installed condition. After
the power is turned on, perform the Function Setting on the remote
control.
• The settings may be selected between the following two: Function
Number or Setting Value.
• Settings will not be changed if invalid numbers or setting values are
selected.
Setting the Ceiling Height
• Select the setting values in the table below according to the height of
Indoor unit side
the ceiling. (The unit is factory-set to "00".)
Setting Description
• Arrange the wires as illustrated below.
Standard
(2.5 m to 3.0 m)
High ceiling
(3.0 m to 3.5 m)
The ceiling height values are for the 4-way outlet.
Do not change this setting in the 3-way outlet mode.
Setting the Outlet Directions
• Select the setting values in the table below for using a 3-way outlet.
(The unit is factory-set to "00".)
Setting Description
(3) Attach the connector cover.
4-way
3-way
Connector cover
Screw
Setting the Filter Sign
• The indoor unit has a sign to inform the user that it is time to clean the
filter.
• Select the time setting for the filter sign display interval in the table
below according to the amount of dust or debris in the room. (The unit
is factory-set to "00")
• If you do not wish the filter sign to be displayed, select the setting value
for "No indication".
Setting Description
Standard
3. ATTACH THE INTAKE GRILLE
(2,500 hours)
The installation is the reverse of "REMOVING THE INTAKE GRILLE".
Long interval
The intake grille can be rotated and installed 4 ways to suit the user's
(4,400 hours)
preference.
Short interval
CAUTION (1,250 hours)
1 The louver angle cannot be changed if the power is not No indication
on, (If moved by hand, it may be damaged.)
Setting the Cooler Room Temperature Correction
2 The grille assembly is directional relative to the air con-
• Depending on the installed environment, the room temperature sensor
ditioner body.
may require a correction. The settings may be selected as shown in the
3 Install so that there is no gap between the grille as- table below. (The unit is factory-set to "00".)
sembly and the air conditioner body.
Setting Description
Standard
Lower control
8
[Troubleshooting at the remote control LCD]
This is possible only on the wired remote control.
[SELF-DIAGNOSIS]
If an error occurs, the following display will be shown.
OPERATION LAMP 1 When setting DIP switches, do not touch any other parts
(RED) ("EE" will appear in the set room temperature display.)
on the circuit board directly with your bare hands.
Unit number
2 Be sure to turn off the main power.
Error code
1. GROUP CONTROL SYSTEM
SU MO TU WE TH FR SA
A number of indoor units can be operated at the same time using a
single remote controller.
(1) Wiring method (indoor unit to remote controller)
Indoor unit
Ex. Self-diagnosis
No. 0
Error code Error contents
01
13
TIMER lamp FILTER lamp
Indoor signal error
26
(GREEN) (ORANGE)
27
00
(8 times) Wired remote controller abnormal
Remote controller wire
02
(2 times) Indoor room temperature sensor error
Indoor heat exchanger temperature sensor (middle)
04 (2) DIP switch setting (indoor unit)
(3 times)
error
Set the unit number of each indoor unit using DIP switch on the indoor
Indoor heat exchanger temperature sensor (inlet) unit circuit board. (see following table and figure.)
28
(4 times)
error DIP switch is normally set to make unit number No. 0.
09 Float switch operated
(6 times)
0C Outdoor discharge pipe temperature sensor error
Indoor unit
(2 times)
Outdoor heat exchanger temperature sensor (outlet)
06
error Unit number
(3 times)
0A Outdoor temperature sensor error
(4 times) 15 Compressor temperature sensor error
0
(8 times) 1d 2-way valve temperature sensor error
1
(2 times) 1E 3-way valve temperature sensor error
2
(3 times) Outdoor heat exchanger temperature sensor (middle)
3
29
error
4
(4 times)
20 Indoor manual auto switch abnormal
5
(2 times)
2A Power supply frequency detection error
6
17 IPM protection
(4 times)
7
18 CT error
8
(2 times)
1A Compressor location error
9
(3 times)
1b Outdoor fan error
10
(5 times)
1F Connected indoor unit abnormal
11
(6 times)
1c Outdoor unit computer communication error
12
(7 times)
12 Indoor fan abnormal
13
(8 times) 0F Discharge temperature error
14
24 Exessive high pressure protection on cooling
(2 or 3 times) 15
2c 4-way valve abnormal
(2 times)
16 Pressure switch abnormal
Example : No. 3
(3 times)
2b Compressor temperature error
19 Active filter abnormal
(4 times)
25 PFC circuit error
(5 times)
(6 times)
If "CO" appears in the unit number display, there is a remote controller
(2 or 3 times)
error. Refer to the installation instruction sheet included with the remote
(4 times) controller.
FUNCTION SETTING Setting the Heater Room Temperature Correction
• Depending on the installed environment, the room temperature sensor
may require a correction. The settings may be changed as shown in the
table below. (The unit is factory-set to "00".)
Setting Description Function Number Setting Value
00
Standard
Lower control 01
31
Slightly warmer control 02
Warmer control 03
Setting Other Functions
• The following settings are also possible, depending on the operating
conditions. (The unit is factory-set to "00".)
Function Number Setting Value
Auto Restart
00
20 Setting Description Function Number Setting Value
01
Yes 00
40
No 01
Indoor Room Temperature Sensor Switching Function (Wired remote con-
troller only)
Setting Description Function Number Setting Value
00
No
42
Yes 01
Function Number Setting Value
00 • If setting value is "00", room temperature is controlled by the indoor unit
22
temperature sensor.
01
• If setting value is "01", room temperature is controlled by either indoor
unit temperature sensor or remote control unit sensor.
[When using the wireless remote controller]
SWITCHING REMOTE CONTROL UNIT SIGNAL
CODES
• Confirm the setting of the remote control unit signal code and the printed
circuit board setting.
If these are not confirmed, the remote control unit cannot be used to
operate for the air conditioner.
Function Number Setting Value
Jumper wire
Remote control unit
00
signal code
JM1 JM2
01 Connect Connect A (Primary setting)
11
Disconnect Connect b
02
Connect Disconnect c
Disconnect Disconnect d
03
Setting record
• Record any changes to the settings in the following table.
Setting Value
Setting
Ceiling height
Function Number Setting Value
Outlet direction
00
30
01 Filter sign
Cooler room temperature
correction
Heater room temperature
correction
Auto restart
Indoor room temperature
sensor switching function
After completing the FUNCTION SETTING, be sure to turn off the power
and turn it on again.
9
SPECIAL INSTALLATION CUSTOMER GUIDANCE
METHODS
Explain the following to the customer in accordance with the operating
CAUTION manual:
(1) Starting and stopping method, operation switching, temperature ad-
justment, timer, air flow switching, and other remote control unit op-
erations.
(2) Air filter removal and cleaning, and how to use the air louvers.
(3) Give the operating and installation manuals to the customer.
(4) If the signal code is changed, explain to the customer how it changed
(the system returns to signal code A when the batteries in the remote
control unit are replaced).
*(4) is applicable to using wireless remote control.
Indoor unit Indoor unit Indoor unit
No. 1 No. 2 No. 3
1 2 3 1 2 3 1 2 3 1 2 3
1 2 3
Remote
controller
DIP SWITCH No.
1 2 3 4
OFF OFF OFF OFF
ON OFF OFF OFF
OFF ON OFF OFF
ON ON OFF OFF
OFF OFF ON OFF
ON OFF ON OFF
OFF ON ON OFF
ON ON ON OFF
OFF OFF OFF ON
ON OFF OFF ON
OFF ON OFF ON
ON ON OFF ON
OFF OFF ON ON
ON OFF ON ON
OFF ON ON ON
ON ON ON ON
ON
1 2 3 4
PART NO. 9377778017-03