Trane Performance Air Handlers Guia de Início Rápido descarregar pdf (Página 2)

2 CLCH-PRC016-EN

Selection Procedure

Note: For specific dimensional and weight information, refer to the unit submittals. The

dimensions and weights in this manual are approximate. Trane has a policy of continuous

product and product data improvement and reserves the right to change design and

specifications without notice.

1. Size the air-handling unit based on airflow through the cooling coil (see Table 1). The unique

fin design of Trane coils enables cooling coil selections at velocities in excess of 625 fpm with

no moisture carryover. The coil moisture carryover curves from tested data are built into the

Trane Official Product Selection System (the TOPSS™ program). Use this system to select coils.

2. Choose the coil section (see Tab le 2). Unit size, coil type, and coil rows determine the minimum

coil section size required.

3. Select a filter type and check face velocities (see Table 3). The maximum recommended face

velocity for pleated media, permanent, bag, and 12-inch cartridge filters is 625 fpm; for

throwaway and HEPA filters, it is 500 fpm.

Note: If selecting an outdoor unit with an inlet hood, verify airflow limitations using Ta ble 4 .

4. Design the basic air-handling system.

5. Estimate system static pressure requirements and select a fan (see Tab le 5 and Ta ble 6 ).

6. Total the overall air-handling unit dimensions and weights using Table 7 and Tabl e 8.

Note: If selecting an outdoor unit, include external piping cabinet weight and dimensions. See

Table 7 and Tab le 8.

7. Select a control system. Factory-mounted, -wired, and -tested end devices, starters, VFDs, and

direct-digital, interoperable controllers are available to minimize construction cycles and job-

site coordination.

8. Contact your local Trane sales office to order an air-handling system or to ask questions.

Table 1. Size the air handler based on airflow through the cooling coil

Coil Type Unit Size 3 4 6 8 10 12 14

1/2-inch

unit

Area (ft

) 2.92 4.51 6.11 7.99 9.98 12.30 13.65

Qty-Size 1-20 x 21 1-20 x 32.50 1-26.25 x 33.50 1-28.75 x 40 1-28.75 x 50 1-32.50 x 54.50 1-32.5 x 60.50

5/8-inch

unit

Area (ft

) 2.50 4.00 5.33 7.31 9.19 11.81 13.13

Qty-Size 1-18 x 20 1-18 x 32 1-24 x 32 1-27 x 39 1-27 x 49 1-31.50 x 54 1-31.50 x 60

1-inch unit

Area (ft

) 2.50 4.00 5.33 6.50 8.17 11.25 12.50

Qty-Size 1–18 × 20 1–18 × 32 1–24 × 32 1–24 × 39 1–24 × 49 1–30 × 54 1–30 × 60

1/2-inch

modified

Area (ft

) 1.74 2.78 2.78 4.95 6.38 9.38 10.42

Qty-Size 1-12.50 x 20 1-12.50 x 32 1-12.50 x 32 1-18.75 x 38 1-18.75 x 49 1-25 x 54 1-25 x 60

5/8-inch

modified

Area (ft

) 1.67 2.67 2.67 4.88 6.13 9.00 10.00

Qty-Size 1-12 x 20 1-12 x 32 1-12 x 32 1-18 x 39 1-18 x 49 1-24 x 54 1-24 x 60

1-inch

modified

Area (ft

) 1.67 2.67 2.67 4.88 6.13 9.00 10.00

Qty-Size 1-12 x 20 1-12 x 32 1-12 x 32 1-18 x 39 1-18 x 49 1-24 x 54 1-24 x 60

1 2 3 4 5 6 7 ... 23 24

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