Mitsubishi MXZ-8B140VA Technical & Service Manual page 54

SW2 setting
Thermostat-on time until error stops
0 to 999
ON
1 2 3 4 5 6
Target rotation of outdoor fan motor
ON
1 2 3 4 5 6
Sub-cool (Heating mode)
ON
1 2 3 4 5 6
Code of the difference between room
temperature and set temperature
("∆Tj": 0 to 99)
■ Tens digit of code: current ∆Tj
■ Units digit of code: ∆Tj a minute ago
ON
1 2 3 4 5 6
U9 Error status during the Error
postponement period
ON
1 2 3 4 5 6
OCH480D
Display detail
SW1
4
5 6
Indoor unit 1
0 0 0
Indoor unit 2
1 0 0
Indoor unit 3
0 1 0
Indoor unit 4
1 1 0
Indoor unit 5 0 0 1
Indoor unit 6 1 0 1
Indoor unit 7 0 1 1
Indoor unit 8 1 1 1
The black square (
Explanation for display
0 to 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.
0 to 999
0 to 130
Code of the difference between room temperature and
set temperature ("∆tj")
Cooling
∆tj
-
∆tj = room temp. Set temp.
0 ∆tj [ - 0.5
1 - 1.0 < ∆tj [ - 0.5
2 - 0.5 < ∆tj [ - 0.5
0.0 < ∆tj [ 0.0
3
0.5 < ∆tj [ 0.5
4
5 1.0 < ∆tj [ 1.0
6 1.5 < ∆tj [ 0.5
7 2.0 < ∆tj [ 2.0
8 2.5 < ∆tj [ 2.5
9 3.0 < ∆tj [ 3.0
SW setting (1 to 4, 5, 6) Target unit
000 Indoor unit 1
100 Indoor unit 2
Indoor unit 3
010
110 Indoor unit 4
001 Indoor unit 5
101 Indoor unit 6
011 Indoor unit 7
111 Indoor unit 8
Description
Normal
Overvoltage error
Undervoltage error
L1 phase interruption error
Abnormal power synchronous signal
PFC/ IGBT error
(Undervoltage)
* 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
54
■
) indicates a switch position.
4 15
Heating
-
∆tj = Set temp. room temp.
∆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
Display
00
01
02
04
08
20
Unit
Minute
rpm
:
Code
display
Code
display