Da b c e, Nlv240 - blower performance data – WaterFurnace Envision (XL) User Manual
Page 20
ENVISION 7-25 TONS INSTALLATION MANUAL
21
Airflow in CFM with dry coil and clean air filter.
External Static Pressure (in. w.g.)
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.2
1.4
1.6
1.8
2.0
MTR/SHEAVE
2.0
2.0
2.0
2.0
2.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
3.0
3.0
3.0
BHP
0.50
0.51
0.59
0.68
0.68
0.79
0.92
0.92
0.92
1.08
1.16
1.30
1.31
1.41
1.59
RPM
418
438
480
521
541
582
623
644
665
705
732
787
826
867
932
TURNS OPEN
4.5
4.0
3.0
2.0
1.0
5.0
4.0
3.5
3.0
2.0
1.5
0.5
2.0
1.0
0.0
MTR/SHEAVE
2.0
2.0
2.0
2.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
3.0
3.0
3.0
BHP
0.58
0.67
0.77
0.78
0.90
1.04
1.05
1.07
1.16
1.26
1.28
1.37
1.47
1.65
RPM
438
480
520
541
582
622
643
664
694
724
746
795
843
888
TURNS OPEN
4.0
3.0
2.0
1.0
5.0
4.0
3.5
3.0
2.5
1.5
1.0
3.0
1.5
0.5
MTR/SHEAVE
2.0
2.0
2.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
3.0
3.0
3.0
3.0
BHP
0.74
0.86
0.88
1.00
1.02
1.17
1.20
1.22
1.24
1.44
1.47
1.52
1.82
1.90
RPM
479
519
540
581
602
643
663
684
704
745
765
806
866
906
TURNS OPEN
3.0
2.0
1.0
5.0
4.5
3.5
3.0
2.5
2.0
1.0
3.5
2.5
1.0
0.0
MTR/SHEAVE
2.0
2.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
3.0
3.0
3.0
3.0
BHP
0.94
0.96
1.10
1.15
1.24
1.32
1.35
1.38
1.41
1.62
1.66
1.91
2.06
RPM
519
539
581
622
642
662
683
704
723
764
784
823
884
TURNS OPEN
2.0
1.0
5.0
4.0
3.5
3.0
2.5
2.0
1.5
3.5
3.0
2.0
0.5
MTR/SHEAVE
2.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
3.0
3.0
3.0
3.0
5.0
5.0
5.0
BHP
1.04
1.20
1.26
1.35
1.44
1.47
1.51
1.55
1.58
1.81
1.86
1.96
2.17
2.25
2.39
2.66
RPM
539
580
621
641
661
682
703
724
744
783
803
843
893
933
970
1017
TURNS OPEN
1.0
5.0
4.0
3.5
3.0
2.5
2.0
1.5
1.0
3.0
2.5
1.5
0.0
3.5
2.5
1.5
MTR/SHEAVE
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
4.0
4.0
4.0
4.0
4.0
5.0
5.0
5.0
BHP
1.28
1.36
1.45
1.54
1.59
1.63
1.67
1.72
1.95
2.01
2.06
2.19
2.31
2.48
2.75
3.03
RPM
580
620
641
661
682
702
722
742
782
802
822
863
902
944
991
1037
TURNS OPEN
5.0
4.0
3.5
3.0
2.5
2.0
1.5
1.0
3.0
2.5
2.0
1.0
0.0
3.0
2.0
1.0
MTR/SHEAVE
1.0
1.0
1.0
1.0
1.0
1.0
1.0
4.0
4.0
4.0
4.0
4.0
5.0
5.0
5.0
BHP
1.46
1.55
1.65
1.70
1.75
1.80
1.85
2.09
2.15
2.21
2.28
2.41
2.54
2.80
3.08
RPM
620
640
660
681
701
722
742
781
801
821
841
881
919
965
1012
TURNS OPEN
4.0
3.5
3.0
2.5
2.0
1.5
1.0
3.0
2.5
2.0
1.5
0.5
3.5
2.5
1.5
Bold Face Requires Larger 3.0 HP Motor
A=Std Static/Std Mtr;B=Low Static/Std. Mtr;C=High Static/Std. Mtr;D=Std Static/Large Mtr;E=High Static/Large Mtr
Units factory shipped with standard static sheave and drive at 2.5 turns open (7600 cfm @ 0.6 in. ESP). Other speeds require field selection.
ISO/AHRI rating point with standard static sheave and drive at 2 turns open (7600 cfm @ 0.7 in. ESP). Other speeds require field selection.
For applications requiring higher static pressures, contact your local representative.
Performance data does not include drive losses and is based on sea level conditions.
Do not operate in gray region. "na" = information not available at time of printing.
All airflow is rated at lowest Voltage if unit is dual Voltage rated, i.e. 208V for 208-230V units.
For wet coil performance first calculate the face velocity of the air coil (Face Velocity [fpm] = Airflow [cfm] / Face Area [sq ft]).
Then for velocities of 200 fpm reduce the static capability by 0.03 in. wg, 300 fpm by 0.08 in. wg, and 400 fpm by 0.12 in. wg.
BHP is given for each blower. Multiply BHP x 2 for unit BHP.
7/25/07
7600
8000
8400
8800
Rated CFM
6400
6800
7200
D
A
B
C
E
NLV240 - Blower Performance Data
Belt Drive