Mitsubishi Electric PAC-AK31BC, Техническое и сервисное руководство

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SW2 setting Display detail Explanation for display Unit
Thermostat-on time until error stops
0~999 0~999
(When it is 100 minutes or more, hundreds digit, tens
digit and ones digit are displayed by turns.)
(Example) When 415 minutes;
0.5 secs. 0.5 secs. 2 secs.
1
ON
2 3 4 5 6
Minute
15
4
1
ON
2 3 4 5 6
Normal
Overvoltage error
Undervoltage error
T phase interruption error
Abnormal power synchronous signal
PFC error
(Overvoltage / Undervoltage / Overcurrent)
Display examples for multiple errors:
Overvoltage (01) + Undervoltage (02) = 03
Undervoltage (02) + Power-sync signal error (08) = 0A
T phase interruption (04) + PFC error (10) = 14
Power circuit board
Controller circuit board
Power circuit board
Power circuit board
Power circuit board
—
Description Detection point Display
00
01
02
04
08
10
U9 Error status during the Error
postponement period
Code
display
1
ON
2 3 4 5 6
Code
display
Code of the difference between room
temperature and set temperature
("
∆ Tj": 0–99)
■ Tens digit of code: current ∆ Tj
■ Units digit of code: ∆ Tj a minute ago
∆ tj
Cooling Heating
∆ tj = room temp.
−
Set temp. ∆ tj = Set temp.
−
room temp.
Code of the difference between room temperature and
set temperature ("
∆ tj")
0
1
2
3
4
5
6
7
8
9
000
100
010
110
001
101
011
111
Indoor unit 1
Indoor unit 2
Indoor unit 3
Indoor unit 4
Indoor unit 5
Indoor unit 6
Indoor unit 7
Indoor unit 8
∆ tj − 0.5
− 1.0 < ∆ tj − 0.5
− 0.5 < ∆ tj − 0.5
0.0 < ∆ tj 0.0
0.5 < ∆ tj 0.5
1.0 < ∆ tj 1.0
1.5 < ∆ tj 0.5
2.0 < ∆ tj 2.0
2.5 < ∆ tj 2.5
3.0 < ∆ tj 3.0
∆ tj − 0.5
− 0.5 < ∆ tj 0.0
0.0 < ∆ tj 0.5
0.5 < ∆ tj 1.0
1.0 < ∆ tj 1.5
1.5 < ∆ tj 2.0
2.0 < ∆ tj 2.5
2.5 < ∆ tj 3.0
3.0 < ∆ tj 3.5
3.5 < ∆ tj
SW setting (1-4, 5, 6) Target unit
Target rotation of outdoor fan motor 0~999
1
ON
2 3 4 5 6
rpm
Sub-cool (Heating mode) 0~130
:
1
ON
2 3 4 5 6
Indoor unit 1
Indoor unit 2
Indoor unit 3
Indoor unit 4
Indoor unit 5
Indoor unit 6
Indoor unit 7
Indoor unit 8
0
1
0
1
0
1
0
1 0
0
1
1
0
0
1
1 0
0
0
0
1
1
1
1
SW1
6 5
4
The black square (
■
) indicates a switch position.