WaterFurnace Envision (XL) - Manual (Page 15)

ENVISION 7-25 TONS INSTALLATION MANUAL
16
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 1.1 1.2 1.3 1.4 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 5.0 5.0 5.0 5.0 5.0
BHP 0.29 0.33 0.38 0.37 0.45 0.47 0.50 0.54 0.58 0.64 0.69 0.71 0.73 0.84 0.95 1.05
RPM 437 478 518 539 586 617 647 677 707 736 765 775 809 843 876 909
TURNS OPEN 4.0 3.0 2.0 1.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 3.5 3.0 2.5 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 5.0 5.0 5.0 5.0 5.0 5.0
BHP 0.38 0.44 0.43 0.52 0.56 0.59 0.63 0.68 0.73 0.78 0.81 0.83 0.94 1.05 1.13 1.20
RPM 477 517 538 585 615 645 675 704 734 763 774 807 841 874 907 940
TURNS OPEN 3.0 2.0 1.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 3.5 3.0 2.5 2.0 1.5 1.0
MTR/SHEAVE 2.0 2.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 5.0 5.0 5.0 5.0 5.0 5.0
BHP 0.49 0.50 0.59 0.63 0.67 0.72 0.77 0.83 0.89 0.91 0.94 1.05 1.17 1.24 1.32
RPM 516 537 584 614 643 673 702 732 761 772 806 839 871 905 938
TURNS OPEN 2.0 1.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 3.5 3.0 2.5 2.0 1.5 1.0
MTR/SHEAVE 2.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 5.0 5.0 5.0 5.0 5.0 5.0
BHP 0.56 0.66 0.71 0.75 0.81 0.86 0.92 0.99 1.02 1.05 1.17 1.29 1.37 1.44
RPM 536 582 612 642 671 700 729 758 770 804 837 869 903 936
TURNS OPEN 1.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 3.5 3.0 2.5 2.0 1.5 1.0
MTR/SHEAVE 1.0 1.0 1.0 1.0 1.0 1.0 1.0 5.0 5.0 5.0 5.0 5.0 5.0
BHP 0.72 0.78 0.83 0.89 0.95 1.02 1.09 1.12 1.16 1.29 1.41 1.49 1.57
RPM 581 611 640 669 698 727 756 768 802 835 867 900 933
TURNS OPEN 5.0 4.5 4.0 3.5 3.0 2.5 2.0 3.5 3.0 2.5 2.0 1.5 1.0
MTR/SHEAVE 1.0 1.0 1.0 1.0 1.0 1.0 5.0 5.0 5.0 5.0 5.0 5.0
BHP 0.83 0.90 0.97 1.03 1.11 1.18 1.14 1.27 1.40 1.53 1.61 1.70
RPM 610 639 668 697 726 754 767 800 833 865 898 930
TURNS OPEN 4.5 4.0 3.5 3.0 2.5 2.0 3.5 3.0 2.5 2.0 1.5 1.0
MTR/SHEAVE 1.0 1.0 1.0 1.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0
BHP 0.97 1.04 1.11 1.19 1.23 1.30 1.37 1.51 1.64 1.73 1.82
RPM 637 666 695 725 731 765 798 830 862 895 927
TURNS OPEN 4.0 3.5 3.0 2.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0
Bold Face Requires 1.5 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 3 turns open (2600 cfm @ 0.6 in. ESP). Other speeds require field selection.
ISO/AHRI rating point with standard static sheave and drive at 3 turns open (2600 cfm @ 0.6 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.
2800
3000
3200
3400
Rated CFM
2200
2400
2600
A
B
E
07/25/07
NLV080 - Blower Performance Data
Belt Drive