Duct Design - intensity MDV-D71T1/VN1-B Installation Manual

7. DUCT DESIGN

Cover the pipe before connecting to keep rubbish, dust or other
impurities out.
As there is no dust filter on the indoor unit, other places which
are easy to maintaining such as inhalant duct should be
installed with dust filter. (Without dust filter, dust adherent on
the air heat exchanger may cause failure and water-leak.
Key points of duct connection
Canvas tie-in
Air outlet
Isolation booth
Other assemblies should be prepared on spot except air
conditioner main body.
High Static Pressure Type
20KW/h(50hz)
25KW/h(50hz)
300
280
260
High speed
240
220
200
Midium speed
180
Low speed
160
140
120
100
80
60
40
20
0
2000 2500 3000 3500 4000 4500
(50hz)
28KW/h
300
280
260
240
220
200
180
160
140
120
100
80
60
40
20
0
2000 2500 3000 3500 4000 4500
Canvas tie-in
Isolation booth
Air inlet
checking orifice
Air dust filter
Fig.7-1
NOTE
5000 5500 6000
Q(m 3 /h)
Fig.7-2
High speed
Midium speed
Low speed
5000 5500 6000
Q(m 3 /h)
Fig.7-3
(50hz)
7.1/8.0KW/h
300
280
260
240
220
200
180
160
High speed
140
120
Midium speed
100
80
Low speed
60
40
20
0
800 1000 1200 1400
(50hz)
9.0KW/h
300
280
260
240
220
200
180
160
High speed
140
120
Midium speed
100
80
Low speed
60
40
20
0
800 1000 1200 1400
400 600
(50hz)
11.2KW/h
300
280
260
240
220
200
180
160 High speed
140
120
Midium speed
100
80
Low speed
60
40
20
0
400 600 800 1000 1200 1400
1600 1800 2000
Q(m 3 /h)
Fig.7-4
1600 1800 2000
Q(m /h)
3
Fig.7-5
1600 1800 2000
2200
Q(m /h)
3
Fig.7-6
installation manual
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