En-17
9.
TEST RUN
The test run function will force the outdoor unit to operate. When performing the test run,
con
fi
rm that the entire system including the external devices operates normally. (If only the
outdoor unit operates, it may cause damage to the entire refrigerant system.)
9.1. Test run using Outdoor unit (PCB)
• Refer to the Installation Manual for the outdoor unit if the PCB for the outdoor unit is to
be used for the test run.
9.2. Test run using remote controller
• Refer to the Installation Manual for the remote controller to perform the test run using
the remote controller. (If using analog inputs, Fujitsu general remote controller operation
will be disabled.)
10.
CHECK LIST (Example)
Pay special attention to the check items below when installing the entire system. After
installation is complete, be sure to check the following check items again.
Check items
If not performed correctly
Check
box
Are the external devices and DX-Kit
operating as expected?
No operation, heat or burn damage
Has the indoor unit been installed cor-
rectly?
Vibration, noise, indoor unit may drop
Has there been a check for gas leaks
(refrigerant pipes)?
No cooling, No heating
Has heat insulation work been com-
pleted?
Water leakage
Does water drain easily from the indoor
units?
Water leakage
Is the voltage of the power source the
same as that indicated on the label on
the indoor unit?
No operation, heat or burn damage
Are the wires and pipes all connected
completely?
No operation, heat or burn damage
Is the indoor unit earthed (grounded)?
Short circuit
Is the connection cable the speci
fi
ed
thickness?
No operation, heat or burn damage
Are the inlets and outlets free of any
obstacles?
No cooling, No heating
Does start and stop air conditioner op-
eration by remote controller or external
device?
No operation
After installation is completed, has the
proper operation and handling been
explained to the user?
11.
ERROR CODES
• When an error occurs, the LED on the PC board (LED name: LED1)
fl
ashes.
• “Error code” can be viewed by connecting the optional wired remote controller, group
remote controller, and IR receiver unit, etc.
If you use a wired type remote controller (Optional parts), error codes will appear on
the remote controller display. If you use a wireless remote controller (IR receiver unit
of optional parts), the lamp on the photodetector unit will output error codes by way of
blinking patterns. See the lamp blinking patterns and error codes in the table below.
Error indications
Wired Remote
Controller Error
code
Error contents
OPERATION
lamp (green)
TIMER lamp
(orange)
FILTER
lamp (red)
(1)
(2)
Remote controller
communication error
(1)
(4)
Network communication
error
(1)
(6)
Peripheral unit
communication error
(2)
(6)
Indoor unit address
setting error
Error indications
Wired Remote
Controller Error
code
Error contents
OPERATION
lamp (green)
TIMER lamp
(orange)
FILTER
lamp (red)
(2)
(9)
Connection unit number
error in wired remote
controller system
(3)
(1)
Indoor unit power supply
abnormal
(3)
(2)
Indoor unit main PCB
error
(3)
(10)
Indoor unit
communication circuit
(wired remote controller)
error
(4)
(2)
Indoor unit heat ex. temp.
thermistor error
(4)
(10)
Indoor unit air temp.
thermistor error
(5)
(2)
Indoor unit coil
(expansion valve) error
(5)
(3)
Indoor unit water drain
abnormal
(9)
(15)
Outdoor unit
miscellaneous error
(13)
(1)
RB unit error
(13)
(6)
DX-kit error
Display mode
: 0.5s ON / 0.5s OFF
: 0.1s ON / 0.1s OFF
( ) : Number of
fl
ashing
Wired Remote Controller Display
UTY-RNKY / UTY-RNKG / UTY-RNKYT (3-wire type)
UTY-RNRY / UTY-RNRG (2-wire type)
Error code
Error icon
Touch the [Status].
Touch the [Error Information].
2-digit numbers are corresponding to
the error code in the preceding table.
For more information, refer to the installation manual of the remote controller.
Touch the [Next Page] (or [previous page])
to switch to other indoor unit information.
UTY-RLRY / UTY-RLRG (2-wire type)
Error code
Error icon
For more information, refer to the installation manual of the remote controller.
For details on marking the ERROR CODES, refer to the Manual of “Wired Remote Controller”.
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