Toshiba MMD-AP0481HF2UL Service Manual page 88

7
Fan characteristics
Fan characteristics
<MMD-AP048 type>
(Standard air volume: 636 cfm, Lower limit air volume: 445 cfm, Upper limit air volume: 700 cfm)
1-2. 230V Fan characteristics
Min 445 (cfm) Standard 636 (cfm) Max 700 (cfm)
1.6
High static pressure tap
1.4
Middle static
pressure tap
1.2
1
0.8
0.6
Low static pressure tap
0.4
0.2
0
400 500 600
Air flow rate (cfm)
1-3. 230V cfm-A
2
1.9
High static pressure tap
1.8
1.7 Middle static
pressure tap
1.6
1.5
1.4
1.3
1.2
Low static
1.1
pressure tap
1
400 500 600
Air flow rate (cfm)
REQUIREMENT
Set a volume damper to the air supply duct, and then adjust the air volume so that it is kept in the range of 70 to
110% against the standard air volume.
15-EN
2-2. 208V Fan characteristics
Min 445 (cfm) Standard 636 (cfm)
1.6
1.4
High static pressure tap
1.2
Middle static pressure tap
1
0.8
0.6
0.4
Low static
0.2
pressure tap
0
700
400 500 600
Air flow rate (cfm)
2-3. 208V cfm-A
2
1.9
High static pressure tap
1.8
Middle static
1.7
pressure tap
1.6
1.5
1.4
1.3
1.2
Low static
pressure tap
1.1
1
700
400 500 600
Air flow rate (cfm)
<MMD-AP072 type>
(Standard air volume: 989 cfm, Lower limit air volume: 693 cfm, Upper limit air volume: 1088 cfm)
1-2. 230V Fan characteristics
Min 693 (cfm)
1.6
1.4
1.2
1
Max 700 (cfm)
0.8
0.6
Low static
pressure tap
0.4
0.2
0
600
Air flow rate (cfm)
1-3. 230V cfm-A
4
3.8
3.6
700
High static pressure tap
3.4
Middle static
3.2
pressure tap
3
2.8
2.6
2.4
2.2
2
600
Air flow rate (cfm)
REQUIREMENT
Set a volume damper to the air supply duct, and then adjust the air volume so that it is kept in the range of 70 to
110% against the standard air volume.
700
– 8 –
2-2. 208V Fan characteristics
Standard 989 (cfm) Max 1088 (cfm) Min 693 (cfm)
1.6
High static pressure tap
1.4
Middle static pressure tap
1.2
1
0.8
0.6
0.4
Low static
0.2
pressure tap
0
900 1200
600
1-3. 208V cfm-A
4
3.8
3.6
High static pressure tap
3.4
Middle static
3.2
pressure tap
3
2.8
2.6
2.4
Low static
2.2
pressure tap
2
900 1200 600
Standard 989 (cfm) Max 1088 (cfm)
High static pressure tap
Middle static pressure tap
900 1200
Air flow rate (cfm)
Low static
pressure tap
900 1200
Air flow rate (cfm)
EN
16-EN