Trane 7½ - 20 Tons Manual page 24

Split system heat pumps

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Table 19.

Evaporator Fan Performance 10 Tons TWE120A1, TWE120B1 - Air Handler

.10"

.20"

.30"

CFM RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP

2 HP Standard Motor and Field Supplied

3200

—

570 0.67 603 0.75 636 0.83 670 0.91 703 1.00 736 1.08 756 1.14 784 1.2 838 1.32 890 1.49 942 1.66

3400

—

560 0.71 592 0.79 623 0.88 652 0.95 685 1.04 716 1.12 743 1.18 762 1.24 790 1.3 844 1.43 895 1.59 948 1.8

3600 557 0.77 583 0.84 613 0.92 643 1.01 667 1.07 700 1.16 730 1.23 750 1.27 768 1.34 797 1.41 850 1.55 900 1.69 954 1.94

3800 579 0.94 605 1.01 634 1.09 663 1.18 683 1.24 710 1.29 738 1.37 762 1.42 785 1.49 813 1.56 861 1.72 911 1.87 —

4000 602 1.11 628 1.17 656 1.26 683 1.35 698 1.4 720 1.43 747 1.5 773 1.58 801 1.64 829 1.71 872 1.89 922 2.04 —

4200 626 1.23 651 1.31 677 1.4 703 1.48 714 1.53 741 1.59 765 1.66 790 1.72 815 1.81 841 1.9 888 2.08

4400 649 1.36 674 1.45 698 1.53 723 1.62 729 1.65 761 1.76 784 1.81 807 1.87 830 1.98 852 2.09 —

4600 669 1.52 692 1.62 714 1.69 735 1.77 747 1.82 782 1.92 798 1.99 815 2.06 —

4800 689 1.69 711 1.79 729 1.85 746 1.92 764 1.98 802 2.09 —

Notes:

1. Data includes pressure drop due to wet coil and 1" filter.

2. Fan motor heat (MBh) = 3.15 x BHP.

3. Trane's factory supplied motors, in commercial equipment, are definite purpose motors, specifically designed and tested to operate reliably and

continuously at all cataloged conditions. Using the full horsepower range of our fan motors as shown in our tabular data will not result in nuisance

tripping or premature motor failure. Our product's warranty will not be affected.

(i)

Field Supplied Low Static Drive (use

Table 20.

Low Static Fan Drive 10 Tons TWE120A1, TWE120B1 - Air Handler

Motor Sheave Turns Open

(i)

Field supplied components required:

Blower Sheave: Fixed Pitch (8.8 inch Pitch Diameter)

Blower Sheave: 1.00 inch Bore, Single Groove, "A" Belt

Belt: A54

Evaporator Fan Performance, Low Static Fan Drive, 10 Tons

External Static Pressure (Inches of Water Gauge)

.40"

.50"

.60"

(i)

Low Static Drive

Table

20)

Nominal RPM

745

706

666

627

588

549

.70"

.80"

.90"

2 HP Standard Motor and Sheaves

—

(i)

Performance Data

1.00"

1.20"

1.40"

—

SSP-PRC001-EN

1.60"

—

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