Wiring schematic, Ab c, Nlh120 - blower performance data – WaterFurnace Envision (XL) User Manual
Page 24
ENVISION 7-25 TONS INSTALLATION MANUAL
25
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
1.0
1.0
1.0
1.0
1.0
1.0
3.0
3.0
BHP
0.80
0.88
0.96
1.07
1.09
1.11
1.13
1.28
1.36
1.48
1.67
1.86
RPM
707
748
789
830
857
882
907
931
956
1032
1115
1198
TURNS OPEN
5.0
4.0
3.0
2.0
5.0
4.5
4.0
3.5
2.5
1.0
4.5
3.5
MTR/SHEAVE
2.0
2.0
2.0
2.0
1.0
1.0
1.0
1.0
1.0
1.0
3.0
3.0
3.0
BHP
0.90
0.99
1.09
1.16
1.22
1.25
1.27
1.34
1.49
1.63
1.77
1.98
2.08
RPM
707
747
788
830
855
880
905
930
955
1031
1107
1166
1210
TURNS OPEN
5.0
4.0
3.0
2.0
5.0
4.5
4.0
3.5
2.5
1.0
4.0
3.0
2.5
MTR/SHEAVE
2.0
2.0
2.0
2.0
1.0
1.0
1.0
1.0
1.0
1.0
3.0
3.0
3.0
3.0
BHP
0.99
1.09
1.20
1.19
1.35
1.38
1.41
1.44
1.47
1.55
1.76
2.06
2.15
2.24
RPM
706
747
787
829
854
879
904
929
954
1004
1070
1137
1180
1224
TURNS OPEN
5.0
4.0
3.0
2.0
5.0
4.5
4.0
3.5
3.0
2.0
4.5
3.5
2.5
2.0
MTR/SHEAVE
2.0
2.0
2.0
2.0
1.0
1.0
1.0
1.0
1.0
1.0
3.0
3.0
3.0
3.0
3.0
BHP
1.05
1.18
1.30
1.32
1.47
1.51
1.54
1.58
1.61
1.85
1.90
2.12
2.22
2.32
2.51
RPM
706
746
787
828
853
878
903
928
953
1001
1044
1103
1134
1184
1233
TURNS OPEN
5.0
4.0
3.0
2.0
5.0
4.5
4.0
3.5
3.0
2.0
5.0
4.0
3.5
2.5
1.5
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
3.0
3.0
BHP
1.11
1.25
1.39
1.53
1.59
1.63
1.67
1.71
1.75
1.99
2.08
2.16
2.27
2.37
2.64
2.75
RPM
705
756
786
827
853
878
902
927
951
999
1037
1075
1118
1161
1219
1255
TURNS OPEN
5.0
4.0
3.0
2.0
5.0
4.5
4.0
3.5
3.0
2.0
1.0
4.5
3.5
3.0
2.0
1.5
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
3.0
3.0
BHP
1.31
1.46
1.61
1.68
1.74
1.79
1.84
1.89
2.13
2.17
2.20
2.43
2.68
2.76
2.84
2.94
RPM
745
786
826
852
877
901
926
950
998
1023
1047
1100
1157
1188
1231
1275
TURNS OPEN
4.0
3.0
2.0
5.0
4.5
4.0
3.5
3.0
2.0
1.0
5.0
4.0
3.0
2.5
1.5
1.0
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
3.0
3.0
BHP
1.52
1.69
1.85
1.88
1.90
1.96
2.02
2.26
2.30
2.34
2.57
2.84
2.91
2.97
3.28
RPM
785
825
851
876
900
925
949
997
1018 1039
1098
1155
1184
1214
1270
TURNS OPEN
3.0
2.0
5.0
4.5
4.0
3.5
3.0
2.0
1.0
5.0
4.5
3.5
2.5
2.0
1.0
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 3.0 turns open (3600 cfm @ 0.9 in. ESP). Other speeds require field selection.
ISO/AHRI rating point with standard static sheave and drive at 2.0 turns open (3600 cfm @ 1.0 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 0.12in. wg.
3600
3800
4000
4200
Rated CFM
3000
3200
3400
A
B
C
07/23/07
NLH120 - Blower Performance Data
Belt Drive