Installation and operation manual
17
EUWAC5~10FZ
Packaged air-cooled water chillers
4PW14037-1D
A
NNEX
III
Fan characteristics
The figures below represent the external static pressure of the unit (ESP) in function of the air flow of the fans (AF).
EUWAC5FZ
Values are applicable only in case the fanspeed controller is not
actived.
EUWAC8FZ
Values are applicable only in case the head pressure switch for
fanspeed control is not actived.
EUWAC10FZ
Values are applicable only in case the head pressure switch for
fanspeed control is not actived.
ESP
External static pressure
AF
Air flow
ESP
External static pressure
AF
Air flow
1
ESP with pulley closed (factory setting)
2
ESP with pulley 1 turn open
3
ESP with pulley 2 turns open
4
ESP with pulley 3 turns open
5
ESP with pulley 4 turns open
110
100
90
80
70
60
50
40
30
20
10
0
ESP
(Pa)
1.00
1.05
1.10
1.15
1.20
1.25
1.30
AF
(m
3
/sec)
160
150
140
130
120
110
100
90
80
70
60
50
40
30
20
10
0
ESP
(Pa)
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
AF
(m
3
/sec)
1
2
3
4
5
ESP
External static pressure
AF
Air flow
1
ESP with pulley closed (factory setting)
2
ESP with pulley 1 turn open
3
ESP with pulley 2 turns open
4
ESP with pulley 3 turns open
5
ESP with pulley 4 turns open
160
150
140
130
120
110
100
90
80
70
60
50
40
30
20
10
0
ESP
(Pa)
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
2.1
2.2
2.3
2.4
2.5
AF
(m
3
/sec)
1
2
3
4
5
