Nordic AH4P Series, Service Manual

Page: 21 / 30

5-Jul-2022 Page 21 002596MAN-01
Maximum external static pressure (all model sizes): 0.50 inH
2
O
Airflow
Table 12: Airflow (-VSP Models, 0-10VDC Control)
DC voltage ap-
plied from
0-10
VDC
+ to GND:
AIRFLOW
Comment
cfm
L/s
0 0
0
1.0 250
120
1.5 375
180
2.0 500
240
3.0 750
350
4.0 1000
470
5.0 1250
590
6.0 1500
710
7.0 1750
830
8.0 2000
940
9.0 2250
1060
10.0 2500
1180
Likely to be limited to a lower airflow due to 80 oz.ft torque limit.
2.5 625
300
3.5 875
410
4.5 1125
530
5.5 1375
650
7.5 1875
880
6.5 1625
770
8.5 2125
1000
9.5 2375
1120
May be limited to a lower airflow due to 80 oz.ft torque limit.
Table 11: Airflow (24VAC Control)
Dry contact from
R to this terminal:
AIRFLOW
cfm
L/s
900
cfm
900
425
1200
cfm
1200
570
1500
cfm
1500
710
1900
cfm
1900
900
2300
cfm
2300
1090
May be limited by 80oz.ft torque limit at high static pressures.
Comment