Da b c e, Nlv240 - blower performance data – WaterFurnace Envision (XL) User Manual

Page 20

ENVISION 7-25 TONS INSTALLATION MANUAL

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

1.0

3.0

BHP

0.50

0.51

0.59

0.68

0.79

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

1.0

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

1.0

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

1.0

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

3.0

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

4.0

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

4.0

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

NLV240 - Blower Performance Data

Belt Drive