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Ceiling Concealed Fan Coil Unit
Ext. Static
Model
(mmAq)
5
MCC010CW
4
3
5
MCC015CW
4
3
5
MCC020CW
4
3
5
MCC025CW
4
3
10
8
MCC028CW
7
6
21
17
MCC030CW
13
9
14
12
MCC038CW
11
9
21
18
MCC040CW
13
9
18
16
MCC050CW
14
11
18
16
MCC060CW
14
10
Microphone position :
1.4 m below the centre of the unit. (GB standard - GB/D17758 )
Tested with 2m length duct at the air discharge outlet and air return inlet.
Ducted Split Fan Coil Unit
Model
125 Hz
MDB075BW
54
MDB100BW
53
MDB125BW
53
MDB150BW
58
Microphone Position:
MDB075/100/125/150BW, 1.4m below the unit (free return and the discharge air was ducted to adjacent room )
1/1 Octave Sound pressure level (dB, ref 20μPa)
Speed
125Hz
250Hz
High
33
30
Medium
31
28
Low
28
25
High
39
36
Medium
35
34
Low
32
29
High
42
39
Medium
41
37
Low
40
36
High
42
41
Medium
41
40
Low
36
35
Super High
48
45
High
45
42
Medium
42
38
Low
36
33
Super High
54
50
High
50
45
Medium
45
40
Low
42
36
Super High
56
57
High
54
51
Medium
51
48
Low
47
45
Super High
56
49
High
54
47
Medium
49
42
Low
45
39
Super High
56
50
High
54
49
Medium
53
47
Low
51
45
Super High
57
50
High
55
49
Medium
53
46
Low
51
43
1/1 Octave Sound Pressure Level (dB, ref 20μPa)
250 Hz
500 Hz
50
46
54
48
51
50
56
57
500Hz
1kHz
2kHz
30
29
28
26
24
22
34
32
32
29
28
25
36
34
34
31
32
29
37
34
36
33
33
31
42
38
39
35
37
32
33
27
46
45
43
42
40
38
37
33
53
50
48
46
46
45
44
41
49
46
47
45
43
41
41
37
50
49
49
48
46
47
44
44
51
51
49
50
47
47
44
43
1k Hz
2k Hz
4k Hz
44
41
36
48
44
39
45
44
38
54
52
47
28
4kHz
8kHz
22
16
10
20
13
8
16
10
7
27
18
11
23
14
9
17
11
8
28
22
17
26
20
15
23
18
13
31
29
23
29
28
22
26
27
21
34
29
26
31
26
22
28
22
17
23
16
11
40
34
30
37
31
26
32
26
20
28
22
15
46
41
36
41
36
31
37
32
26
34
28
22
41
37
32
39
35
29
35
31
24
30
26
18
44
38
33
43
37
32
40
35
29
36
32
26
46
39
35
44
37
33
39
34
28
35
30
24
Overall
(dBA)
8k Hz
26
49
31
52
29
52
39
59
Overall
Noise
(dBA)
Criteria
33
27
30
24
26
20
37
31
34
27
29
23
38
33
36
30
34
27
40
33
39
32
36
30
44
37
41
34
38
32
34
27
49
44
46
41
42
37
38
32
55
49
51
45
48
44
45
40
51
45
49
44
45
40
41
36
53
48
52
47
50
46
47
43
55
50
53
49
50
46
47
42
Noise
Criteria
43
47
46
54
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