Fujitsu AB Series A18LATN, Service Instruction

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6
5
FUNCTION SETTING
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
the ceiling. (The unit is factory-set to 00 .)
Jumper wire
JM2
Connect
Connect
Disconnect
Disconnect
Remote control unit
signal code
A (Primary setting)
b
c
d
JM1
Connect
Disconnect
Connect
Disconnect
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 the Cooler Room Temperature Correction
Depending on the installed environment, the room temperature sensor
may require a correction. The settings may be selected as shown in the
table below. (The unit is factory-set to 00 .)
Setting Value
00
01
Setting Description
Standard
Lower control
Function Number
30
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 Value
00
01
02
03
Setting Description
Standard
Lower control
Slightly warmer control
Warmer control
Function Number
31
Setting Other Functions
The following settings are also possible, depending on the operating
conditions. (The unit is factory-set to 00 .)
Auto Restart
Setting Value
00
01
Setting Description
Yes
No
Function Number
40
Indoor Room Temperature Sensor Switching Function (Wired remote con-
troller only)
Setting Value
00
01
Setting Description
No
Yes
Function Number
42
If setting value is 00 , room temperature is controlled by the indoor unit
temperature sensor.
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.
TEST RUN
CHECK ITEMS
(1) Is operation of each button on the remote control unit normal
(2) Does each lamp light normally
(3) Do not air flow direction louvers operate normally
(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.
Test running
When the air conditioner is run by pressing the remote control unit test
run button, the OPERATION and TIMER lamps flash slowly at the same
time.
[Using the wireless remote control]
For the operation method, refer to the operating manual.
The outdoor unit may not operate depending on the room temperature.
In this case, press the test run button on the remote control unit while
the air conditioner is running. (Point the transmitter section of the re-
mote control unit toward the air conditioner and press the test run but-
ton with the tip of a ball-point pen, etc.)
Transmitter section
Test run button
To end test operation, press the remote control unit START/STOP button.
(When the air conditioner is run by pressing the test run button, the
OPERATION indicator lamp and TIMER indicator lamp will simultane-
ously flash slowly.)
[Using the wired remote control]
For the operation method, refer to the operating manual.
(1) Stop the air conditioner operation.
(2) Press the master control button and the fan control button simultane-
ously for 2 seconds or more to start the test run.
(3) Press the start/stop button to stop the test run.
Test run display
Setting
Ceiling height
Filter sign
Cooler room temperature
correction
Heater room temperature
correction
Auto restart
Indoor room temperature
sensor switching function
Setting Value
Setting record
Record any changes to the settings in the following table.
[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.
( EE will appear in the set room temperature display.)
Unit number
Error code
Ex. Self-diagnosis
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
2
OFF
OFF
ON
ON
OFF
OFF
ON
ON
OFF
OFF
ON
ON
OFF
OFF
ON
ON
3
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
4
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
ON
ON
ON
ON
ON
Unit number DIP SWITCH No.
8
SPECIAL INSTALLATION
METHODS
9
CUSTOMER GUIDANCE
Explain the following to the customer in accordance with the operating
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
: 0.5s ON/0.5s OFF (Flash) : OFF
Troubleshooting
(Troubleshooting with the indoor display)
Troubleshooting at the display is possible either on the wired or wireless
remote control.
The OPERATION, TIMER and FILTER lamp operate as follows table ac-
cording to the error contents.
SU MO TU WE TH FR SA
3 4
ON
1 2
If CO appears in the unit number display, there is a remote controller
error. Refer to the installation instruction sheet included with the remote
controller.
Example : No. 3
CAUTION
When setting DIP switches, do not touch any other parts
on the circuit board directly with your bare hands.
Be sure to turn off the main power.
1. GROUP CONTROL SYSTEM
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)
1 2 3 1 2 3 1 2 3
1 2 3
1 2 3
(2) DIP switch setting (indoor unit)
Set the unit number of each indoor unit using DIP switch on the indoor
unit circuit board. (See following table and figure.)
DIP switch is normally set to make unit number No. 0.
Indoor unit
No. 0
Indoor unit
No. 1
Indoor unit
No. 2
Indoor unit
No. 3
Remote
controller
Remote controller wire
After completing the FUNCTION SETTING, be sure to turn off the power
and turn it on again.
PART NO. 9378042018
7
FRESH-AIR INTAKE
(1) Open up the knockout hole for the fresh-air intake, as shown in the
figure. (If using half-concealed installation, open up the top knockout
hole instead.)
For half concealed
installation
Indoor unit
CAUTION
When removing the cabinet (iron plate), be careful not
to damage the indoor unit internal parts and surroun-
ding area (outer case).
When processing the cabinet (iron plate), be careful
not to injure yourself with burrs, etc.
(2) Fasten the round flange (optional) to the fresh-air intake, as shown in
the figure. (If using half-concealed installation, attach to the top.)
[After completing INDOOR UNIT INSTALLATION ...]
(3) Connect the duct to the round flange.
(4) Seal with a band and vinyl tape, etc. so that air does not leak from the
connection.
Round duct (option parts)
FILTER lamp (Orange)
TIMER lamp (Green)
OPERATION lamp (Red)
Duct
Setting Value
00
01
Setting Description
Standard
(2.3 m to 3.0 m)
High ceiling
(3.0 m or more)
Function Number
20
Setting Value
00
01
02
03
Setting Description
Standard
(2,500 hours)
Long interval
(4,400 hours)
Short interval
(1,250 hours)
No indication
Function Number
11
Indoor unit
Printed circuit board
Error code Error contents
Indoor signal error
Wired remote controller abnormal
Indoor room temperature sensor error
Indoor heat exchanger temperature sensor (middle)
error
Indoor heat exchanger temperature sensor (inlet)
error
Float switch operated
Outdoor discharge pipe temperature sensor error
Outdoor heat exchanger temperature sensor (outlet)
error
Outdoor temperature sensor error
Heatsink thermistor error
Compressor temperature sensor error
2-way valve temperature sensor error
3-way valve temperature sensor error
Outdoor heat exchanger temperature sensor (middle)
error
Indoor manual auto switch abnormal
Power supply frequency detection error
IPM protection
CT error
Compressor location error
Outdoor fan error
Connected indoor unit abnormal
Outdoor unit computer communication error
Indoor fan abnormal
Discharge temperature error
Excessive high pressure protection on cooling
4-way valve abnormal
Pressure switch abnormal
Compressor temperature error
Active filter abnormal
PFC circuit error
01
13
26
27
00
02
04
28
09
0C
06
0A
0E
15
1d
1E
29
20
2A
17
18
1A
1b
1F
1c
12
0F
24
2c
16
2b
19
25
Indoor signal error
Wired remote controller abnormal
Indoor room temperature sensor error
Indoor heat exchanger temperature
sensor (middle) error
Indoor heat exchanger temperature
sensor (inlet) error
Float switch operated
Outdoor discharge pipe temperature
sensor error
Outdoor heat exchanger temperature
sensor (outlet) error
Outdoor temperature sensor error
Heatsink thermistor error
Compressor temperature sensor error
2-way valve temperature sensor error
3-way valve temperature sensor error
Outdoor heat exchanger temperature
sensor (middle) error
Indoor manual auto switch abnormal
Power supply frequency detection
error
IPM protection
CT error
Compressor location error
Outdoor fan error
Connected indoor unit abnormal
Outdoor unit computer communication
error
Indoor fan abnormal
Discharge temperature error
Excessive high pressure protection on
cooling
4-way valve abnormal
Pressure switch abnormal
Compressor temperature error
Active filter abnormal
PFC circuit error
Error contents
OPERATION
lamp (RED)
(2 times)
(2 times)
(2 times)
(2 times)
(3 times)
(3 times)
(3 times)
(3 times)
(3 times)
(3 times)
(3 times)
(3 times)
(4 times)
(4 times)
(5 times)
(5 times)
(5 times)
(5 times)
(5 times)
(5 times)
(6 times)
(7 times)
(7 times)
(7 times)
(7 times)
(7 times)
(8 times)
(8 times)
TIMER lamp
(GREEN)
(8 times)
(2 times)
(3 times)
(4 times)
(6 times)
(2 times)
(3 times)
(4 times)
(7 times)
(8 times)
(2 times)
(4 times)
(2 times)
(3 times)
(5 times)
(6 times)
(7 times)
(8 times)
(2 or 3 times)
(2 times)
(3 times)
(4 times)
(5 times)
(6 times)
(2 or 3 times)
(4 times)
FILTER lamp
(ORANGE)
(2 times)
(3 times)
(4 times)