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APPENDIX II
AIR HANDLING PERFORMANCE
Note:
Airflows are for a dry coil. Reduce airflow by 10% in wet coil conditions. In a free blow or low resistance application, beware
of exceeding indoor fan motor’s full load amp limit (refer Specifications document).
As filters are optional, the fan air flows given are for units installed without filters.
OPA 560RLTFP
OPA 250RLTFP
l/s - Pa
OPA 350RLTFP
l/s - Pa
l/s - Pa
OPA 450RLTFP
500
1000
1500
2000
2500
0
100
200
300
AIR FLOW (l/s)
A
V
AILABLE EXTERNAL
PRESSURE (P
a)
2.5 m/s Face Velocity
400
500
0
NOMINAL
9V
8V
7V
5V
6V
9V
8V
7V
6V
5V
3.1
2.2
1.5
4.9
2.5
1.7
3.4
1.1
INPUT
(kW)
2.5
1.5
0.5
2.0
1.0
3.0
3.5
Amps
500
1000
1500
2000
2500
0
100
200
300
AIR FLOW (l/s)
A
V
AILABLE EXTERNAL
PRESSURE (P
a)
2.5 m/s Face Velocity
400
500
0
NOMINAL
INPUT
(kW)
3.0
2.0
1.0
2.5
1.5
3.5
4.0
8V
7V
5V
6V
9V
8V
7V
6V
5V
2.9
2.0
1.5
1.0
4.7
2.4
3.4
4.3
1000
1500
2000
2500
3000
0
100
200
300
AIR FLOW (l/s)
A
V
AILABLE EXTERNAL
PRESSURE (P
a)
2.5 m/s Face Velocity
400
500
500
NOMINAL
9V
8V
7V
5V
6V
10V
8V
7V
6V
9V
10V
5V
4.5
3.9
2.8
2.0
5.4
3.3
1.0
2.3
1.7
4.6
1.4
INPUT
(kW)
3.0
1.0
2.0
0.0
4.0
5.0
l/s - Pa
- - - - l/s - W
- - - - l/s - W
- - - - l/s - W
- - - - l/s - W
2000
2500
3000
3500
4000
0
100
200
300
AIR FLOW (l/s)
A
V
AILABLE EXTERNAL
PRESSURE (P
a)
2.5 m/s Face Velocity
400
500
1500
1000
NOMINAL
9V
8V
7V
5V
6V
10V
10V
9V
8V
7V
6V
5V
6.1
5.1
3.5
2.5
6.7
4.0
1.2
1.9
1.3
5.6
1.8
INPUT
(kW)
3.0
1.0
2.0
0.0
4.0
5.0
2.8
