Service manual
71
4-3. OPERATIONAL FREQUENCY RANGE
Number of
operating
unit
1
2
3
4
Capacity
code
1, 2, 3, 4
5, 6
7, 8
9, 10
11, 12
13, 14
15 or above
2, 3, 4, 5, 6, 7
8, 9, 10
11, 12, 13
14, 15, 16
17, 18, 19, 20, 21
22, 23, 24 or above
3, 4, 5, 6, 7, 8, 9, 10
11, 12, 13, 14, 15
16, 17, 18, 19, 20
21, 22, 23, 24, 25
26, 27, 28, 29
30 or above
4, 5, 6, 7, 8, 9, 10
11, 12, 13, 14, 15
16, 17, 18, 19, 20
21, 22, 23, 24, 25
26, 27, 28, 29, 30
31, 32, 33, 34, 35
36 or above
Min.
20
20
20
20
20
20
30
30
30
30
30
30
40
40
52
52
COOL (Hz)
Max.
65
65
65
100
100
100
100
105
105
105
105
105
105
105
105
105
DRY
(Hz)
25
25
30
75
75
75
75
52
52
52
52
100
105
105
105
105
Min.
30
30
30
30
30
30
30
58
58
58
58
58
66
66
88
88
Max.
63
63
63
100
100
100
100
100
100
100
112
112
112
112
112
112
HEAT (Hz)
Defrost
63
63
63
100
100
100
100
100
100
100
100
100
100
100
100
100
MXZ-3A54VA MXZ-4A71VA
Number of
operating
unit
1
2
Capacity
code
1, 2, 3, 4
5, 6
7
2, 3, 4, 5, 6, 7
8, 9, 10
11, 12, 13
14
Min.
20
20
20
20
20
20
30
COOL (Hz)
Max.
65
65
65
100
100
100
100
DRY
(Hz)
25
25
30
75
75
75
75
Min.
30
30
30
30
30
30
30
Max.
63
63
63
100
100
100
100
HEAT (Hz)
Defrost
63
63
63
100
100
100
100
MXZ-2A52VA
LEV opening
correction (pulse)
6[ RT
4[ RT< 6
RT<4
2
1
0
Temperature to be
decreased (:)
6[ RT
4[ RT< 6
RT<4
-10
-5
-5
RT
RT
b) Correct the LEV separately by temperature difference â RTâ between main/sub indoor coil thermistor.
In addition, decrease the target discharge temperature corresponding RT.
OBT14A--3qxp 06.1.12 1:10 PM Page 71