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7. Test run
7.1. Before test run
► 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, wrong polarity, and no disconnection of one phase
in the supply.
► Use a 500-volt megohmmeter to check that the resistance between the
power supply terminals and ground is at least 1.0 MΩ.
7.. Test run
Refer to the installation manual that comes with each remote controller for details.
7.3. Self-check
Refer to the installation manual that comes with each remote controller for details.
RF thermostat is not established.
• Refer to the following tables for details on the check codes. (IR wireless remote controller)
[Output pattern A]
Beeper sounds
Beep
OPERATION
INDICATOR
lamp blinking
Off
pattern
Approx. 2.5 sec.
Self-check
starts
(Start signal
Number of blinks/beeps in pattern indicates the check
received)
code in the following table (i.e., n=5 for "P5")
[Output pattern B]
Beeper sounds
Beep
OPERATION
INDICATOR
lamp blinking
Off
pattern
Approx. 2.5 sec.
Self-check
starts
(Start signal
received)
[Output pattern A] Errors detected by indoor unit
IR wireless remote controller
RF thermostat
Beeper sounds/OPERATION
INDICATOR lamp blinks
(Number of times)
1
P1
P2
2
P9
3
E6, E7
4
P4
P5
5
PA
6
P6
7
EE
8
P8
9
E4
10
—
11
PB (Pb)
12
FB (Fb)
14
PL
No sound
E0, E3
No sound
E1, E2
No sound
– – – –
10
Beep
Beep
Beep
Beep
st
nd
rd
th
1
2
3
n
On
On
On
On
0.5 sec.
0.5 sec.
0.5 sec.
0.5 sec.
Beep
Beep
st
nd
1
2
On
On
On
Approx. 3 sec.
0.5 sec.
0.5 sec.
Number of blinks/beeps in pattern indicates the check
code in the following table (i.e., n=5 for "U2")
Wired remote
controller
Check code
Intake sensor error
Pipe (TH2) sensor error
Pipe (TH5) sensor error
Indoor/outdoor unit communication error
Drain sensor error / Float switch connector open
Drain pump error
Forced compressor error
Freezing/Overheating protection operation
Communication error between indoor and outdoor units
Pipe temperature error
Remote controller signal receiving error
—
Indoor unit fan motor error
Indoor unit control system error (memory error, etc.)
Refrigerant circuit abnormal
Remote controller transmission error
Remote controller control board error
No corresponding
► 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 1.0 MΩ.
Beep
Beep
st
nd
1
2
· · · Repeated
Off
On
On
Approx. 2.5 sec.
0.5 sec.
0.5 sec.
Number of blinks/beeps in pattern indicates
the check code in the following table
Beep
Beep
rd
th
3
n
On
On
Off
0.5 sec.
0.5 sec.
Approx. 2.5 sec.
Symptom
Beep
Beep
st
nd
1
2
· · · Repeated
On
On
On
Approx. 3 sec.
0.5 sec.
0.5 sec.
Number of blinks/beeps in pattern indicates
the check code in the following table
Remark
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