WaterFurnace Envision (XL) - Manual (Page 22)

ENVISION 7-25 TONS INSTALLATION MANUAL
23
Airflow in CFM with dry coil and clean air filter.
Rated CFM
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 1.1 1.2 1.3 1.4 1.5
MTR/SHEAVE 1.0 1.0 1.0 1.0 1.0 4.0 4.0 4.0 4.0 5.0 5.0 5.0 5.0
2200
BHP 0.37 0.40 0.43 0.47 0.52 0.59 0.65 0.71 0.75 0.78 0.81 0.86 0.90
RPM 583 624 665 706 747 770 791 821 865 911 957 986 1015
TURNS OPEN 5.0 4.0 3.0 2.0 1.0 3.0 2.0 1.0 0.0 3.5 3.0 2.5 2.0
MTR/SHEAVE 1.0 1.0 1.0 1.0 1.0 4.0 4.0 4.0 4.0 5.0 5.0 5.0 5.0 5.0
2400
BHP 0.45 0.49 0.53 0.59 0.62 0.67 0.70 0.74 0.79 0.85 0.88 0.91 0.95 1.08
RPM 582 623 664 705 746 765 790 820 861 906 938 970 1004 1030
TURNS OPEN 5.0 4.0 3.0 2.0 1.0 3.0 2.0 1.0 0.0 4.0 3.0 2.5 2.0 1.5
MTR/SHEAVE 1.0 1.0 1.0 1.0 3.0 3.0 3.0 3.0 3.0 5.0 5.0 5.0 5.0 5.0
2600
BHP 0.51 0.56 0.62 0.66 0.69 0.73 0.76 0.84 0.90 0.93 0.96 1.04 1.12 1.17
RPM 602 643 684 726 760 783 805 853 877 916 954 988 1021 1051
TURNS OPEN 4.5 3.5 2.5 1.5 4.0 3.5 2.5 2.0 1.5 3.5 3.0 2.5 1.5 1.0
MTR/SHEAVE 1.0 1.0 1.0 1.0 1.0 3.0 3.0 3.0 3.0 3.0 5.0 5.0 5.0 5.0
2800
BHP 0.53 0.58 0.64 0.69 0.76 0.79 0.80 0.94 0.99 1.03 1.15 1.16 1.17 1.27
RPM 581 622 663 704 744 776 802 851 876 900 951 976 1001 1033
TURNS OPEN 5.0 4.0 3.0 2.0 1.0 3.5 3.0 2.0 1.5 1.0 3.0 2.5 2.0 1.5
MTR/SHEAVE 1.0 1.0 1.0 1.0 1.0 3.0 3.0 3.0 3.0 3.0 5.0 5.0 5.0 5.0 5.0
3000
BHP 0.59 0.66 0.73 0.80 0.87 0.90 0.92 1.07 1.08 1.10 1.30 1.33 1.35 1.40 1.44
RPM 580 621 662 702 743 775 801 848 873 898 949 973 997 1022 1046
TURNS OPEN 5.0 4.0 3.0 2.0 1.0 3.5 3.0 2.0 1.5 1.0 3.0 2.5 2.0 1.5 1.0
MTR/SHEAVE 1.0 1.0 1.0 1.0 3.0 3.0 3.0 3.0 3.0 5.0 5.0 5.0 5.0 5.0
3200
BHP 0.72 0.81 0.90 0.98 1.02 1.04 1.19 1.21 1.23 1.44 1.47 1.51 1.54 1.57
RPM 620 661 701 741 773 799 846 871 895 946 970 994 1019 1043
TURNS OPEN 4.0 3.0 2.0 1.0 3.5 3.0 2.0 1.5 1.0 3.0 2.5 2.0 1.5 1.0
MTR/SHEAVE 1.0 1.0 1.0 3.0 3.0 3.0 3.0 3.0 5.0 5.0 5.0 5.0 5.0
3400
BHP 0.87 0.98 1.08 1.12 1.16 1.31 1.34 1.36 1.58 1.62 1.65 1.69 1.73
RPM 660 700 740 772 797 844 869 893 944 968 992 1016 1040
TURNS OPEN 3.0 2.0 1.0 3.5 3.0 2.0 1.5 1.0 3.0 2.5 2.0 1.5 1.0
Bold Face Requires Larger 2 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 (2600 cfm @ 0.4 in. ESP). Other speeds require field selection.
ISO/AHRI rating point with standard static sheave and drive at 1.5 turns open (2600 cfm @ 0.5 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.
A
D
C E
07/25/07
NLH080 - Blower Performance Data
Belt Drive