maintenance of motor
˖
Air outlet
Air inlet
Canvas tie-in
Canvas tie-in
Air dust filter
checking orifice
Isolation booth
Isolation booth
Fig.7-1
NOTE
Other assemblies should be prepared on spot except air
conditioner main body.
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
7. DUCT DESIGN
Fan performances curves
0 1 2
F
3
E
4
D
5
C
6
B
7
A
89
Installation manual
11
High pressure duct
Fig.7-2
0
20
40
60
80
100
120
140
160
180
200
220
1400 1800 2200 2600 3000 3400 3800 4200
0
20
40
60
80
100
120
140
160
180
200
220
1400 1800 2200 2600 3000 3400 3800 4200
0
20
40
60
80
100
120
140
160
180
200
220
1400 1800 2200 2600 3000 3400 3800 4200
MVD-160T1/DHN1-B
HIGH FAN SPEED
MIDDLE FAN SPEED
LOW FAN SPEED
MVD-200T1/DHN1-B
ENC2
ENC2 must be set on the electronic board A as desired.
Note: The setting must be done without power.
Fig.7-3
ENC2 = 0
ENC2 = 0
ENC2 = 0
ENC2 = 4
ENC2 = 4
ENC2 = 2
ENC2 = 3
ENC2 = 1
ENC2 = 4
ENC2 = 3
ENC2 = 1
ENC2 = 1
ENC2 = 2
ENC2 = 2
ENC2 = 3
By default, setting is ENC2 = 0
Static Pressure (Pa)
Air flow (m3/h)
0
30
60
90
120
150
180
210
240
270
2800
3400
4000
4600
5200
5800
0
30
60
90
120
150
180
210
240
270
2800
3400
4000
4600
5200
5800
0
30
60
90
120
150
180
210
240
270
2800
3400
4000
4600
5200
5800
ENC2 = 3
ENC2 = 0
ENC2 = 0
ENC2 = 0
ENC2 = 3
ENC2 = 3
ENC2 = 1
ENC2 = 2
ENC2 = 1
ENC2 = 2
ENC2 = 1
ENC2 = 2
Static Pressure (Pa)
Air flow (m3/h)
Static Pressure (Pa)
Air flow (m3/h)
HIGH FAN SPEED
MIDDLE FAN SPEED
LOW FAN SPEED
Static Pressure (Pa)
Air flow (m3/h)
Static Pressure (Pa)
Air flow (m3/h)
Static Pressure (Pa)
Air flow (m3/h)
