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12. Test run [for wireless remote controller]
12.1. Before test run
s s s s s After completing installation and the wiring and piping of the indoor and
outdoor units, check for refrigerant leakage, looseness in the power sup-
ply or control wiring, and wrong polarity.
s s s s s Use a 500-volt megohmmeter to check that the resistance between the
power supply terminals and ground is at least 1.0 M
s s s s s Do not carry out this test on the control wiring (low voltage circuit) termi-
nals.
Warning:
Do not use the air conditioner if the insulation resistance is less than
Ω
1.0 M
.
Caution:
The compressor will not operate unless the power supply phase connection
is correct.
•
For description of each check code, refer to the following table.
1 Check code
P1
Intake sensor error
P2
Pipe sensor error
P4
Drain sensor error
P5
Drain pump error
P6
Freezing / Overheating safeguard operation
P8
Pipe temperature error
P9
TH5 sensor error
U0–UP
Outdoor unit error
F1–FA
Outdoor unit error
E0–E5
Signal error between remote controller and indoor units
E6–EF
Communication error between indoor and outdoor units
– –
No alarm history
F F F F
No unit
•
On wireless remote controller
2 The continuous buzzer sounds from receiving section of indoor unit.
3 Blink of operation lamp
•
On wired remote controller
1 Check code displayed in the LCD.
•
If the unit cannot be operated properly after the above test run has been performed, refer to the following table to remove the cause.
Wired remote controller
H0
H0 → Error code
Display messages do not apper even
when operation switch is turned ON
(operation lamp does not light up).
On the wireless remote controller with condition above, following phenomena takes place.
•
No signals from the remote controller are accepted.
•
OPE lamp is blinking.
•
The buzzer makes a short pipng sound.
Note:
Operation is not possible for about 30 seconds after cancellation of function selection. (Correct operation)
For description of each LED (LED1, 2, 3) provided on the indoor controller, refer to the following table.
LED1 (power for microcomputer)
LED2 (power for remote controller)
LED3 (communication between indoor and outdoor units)
Ω
.
Symptom
Symptom
LED 1, 2 (PCB in outdoor unit)
For about 2
After LED 1, 2 are lighted, LED 2 is turned off,
minutes following
then only LED 1 is lighted. (Correct operation)
power-on
Only LED 1 is lighted. → LED 1, 2 blink.
After about 2
minutes has
expired following
power-on
Only LED 1 is lighted. → LED 1 blinks twice,
LED 2 blinks once.
Indicates whether control power is supplied. Make sure that this LED is always lit.
Indicates whether power is supplied to the remote controller. This LED lights only in the case of the
indoor unit which is connected to the outdoor unit refrigerant address "0".
Indicates state of communication between the indoor and outdoor units. Make sure that this LED is
always blinking.
12.2. Self-check
[Fig. 12.2.1] (P.8)
1 Turn on the power.
CHECK
2 Press the
button twice.
(Start this operation from the status of remote controller display turned
off.)
A
CHECK begins to light.
B «00» begins to blink.
3 While pointing the remote controller toward the unit's receiver, press the
h
button. The check code will be indicated by the number of times
that the buzzer sounds from the receiver section and the number of blinks
of the operation lamp.
4 Press the ON/OFF button to stop the self-check.
2 Buzzer sound
Single beep × 1
Single beep × 2
Single beep × 4
Single beep × 5
Single beep × 6
Single beep × 8
Single beep × 2
Double beep × 1
Double beep × 1
Sounds other than above
Sounds other than above
No sound
Triple beep
• For about 2 minutes following power-on, operation of the
remote controller is not possible due to system start-up.
(Correct operation)
• Connector for the outdoor unit's protection device is not
connected.
• Reverse or open phase wiring for the outdoor unit's power
terminal block (L1, L2, L3)
• Incorrect wiring between indoor and outdoor units (incor-
rect polarity of S1, S2, S3)
• Remote controller wire short
3 OPE LED
Lit for 1 sec. × 1
Lit for 1 sec. × 2
Lit for 1 sec. × 4
Lit for 1 sec. × 5
Lit for 1 sec. × 6
Lit for 1 sec. × 8
Lit for 1 sec. × 2
Lit for 0.4 sec. + 0.4 sec. × 1
Lit for 0.4 sec. + 0.4 sec. × 1
Lights other than above
Lights other than above
Not lit
Not lit
Cause
19
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