Trane Performance Air Handlers Manual de instalación descargar pdf (Pagina 110)

Start-Up

110 CLCH-SVX07C-EN

Determine Fan Speed

Fan speed can be determined using a strobe-type

tachometer, or revolution counter.

Check unit vibration if the fan speed is changed more than

five percent from the original designed speed, or if parts

such as shafts, fan wheels, bearings, or other drive

components are replaced. Do not exceed the maximum

fan speed.

Pay particular attention to any vibration, noise, or

overheating of the motor and fan bearings; however, note

that bearings may run warm during break in.

Table 34. Typical sheave diameter and deflection force

Cross

section

Smallest sheave

diameter range

(in.)

Speed (rpm)

range

Belt Deflection Force (lbs)

Super gripbelts and

unnotched gripbands

Gripnotch belts and

notched gripbands

Used belt New belt Used belt New belt

A, AX

3.0–3.6

1,000–2,500 3.7 5.5 4.1 6.4

2,501–4,000 2.8 4.2 3.4 5.0

3.8–4.8

1,000–2,500 4.5 6.8 5.0 7.4

2,501–4,000 3.8 5.7 4.3 6.4

5.0–7.0

1,000–2,500 5.4 8.0 5.7 9.4

2,501–4,000 4.7 7.0 5.1 7.6

B, BX

3.4–4.2

860–2,500 n/a n/a 4.9 7.2

2,501–4,000 n/a n/a 4.2 6.2

4.4–5.6

860–2,500 5.3 7.9 7.1 10.5

2,501–4,000 4.5 6.7 7.1 9.1

5.8–8.6

860–2,500 6.3 9.4 8.5 12.6

2,501–4,000 6.0 8.9 7.3 10.9

C, CX

7.0–9.0

500–1,740 11.5 17.0 14.7 21.8

1,741–3,000 9.4 13.8 11.9 17.5

9.5–16.0

500–1,740 14.1 21.0 15.9 23.5

1,741–3,000 12.5 18.5 14.6 21.6

12.0–16.0

200–850 24.9 37.0 n/a n/a

851–1,500 21.2 31.3 n/a n/a

18.0–20.0

200–850 30.4 45.2 n/a n/a

851–1,500 25.6 38.0 n/a n/a

3V, 3VX

2.2–2.4

1,000–2,500 n/a n/a 3.3 4.9

2,501–4,000 n/a n/a 2.9 4.3

2.65–3.65

1,000–2,500 3.6 5.1 4.2 6.2

2,501–4,000 3.0 4.4 3.8 5.6

4.12–6.90

1,000–2,500 4.9 7.3 5.3 7.9

2,501–4,000 4.4 6.6 4.9 7.3

5V, 5VX

4.4–6.7

500–1,749 n/a n/a 10.2 15.2

1,750–3,000 n/a n/a 8.8 13.2

3,001–4,000 n/a n/a 5.6 8.5

7.1–10.9

500–1,749 12.7 18.9 14.8 22.1

1,750–3,000 11.2 16.7 13.7 20.1

11.8–16.0

500–1,749 15.5 23.4 17.1 25.5

1,750–3,000 14.6 21.8 16.8 25.0

12.5–17.0

200–850 33.0 49.3 n/a n/a

851–1,500 26.8 39.9 n/a n/a

18.0–22.4

200–850 39.6 59.2 n/a n/a

851–1,500 35.3 52.7 n/a n/a

WARNING

Live Electrical Components!

During installation, testing, servicing and

troubleshooting of this product, it may be necessary to

measure the speed of rotating components. Have a

qualified licensed service individual who has been

properly trained in handling exposed rotating

components perform these tasks. Failure to follow all

safety precautions when exposed to rotating

components could result in death or serious injury.

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