Carrier 39CCN Installation, Start-Up And Service Instructions Manual Download

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Table 3 — Fan Belt Tension Data

BELT STYLE

SMALLEST

SHEAVE DIAMETER

RANGE (in.)

RPM RANGE

BELT DEFLECTION FORCE (lb)

SUPER GRIPBELTS AND UNNOTCHED

GRIPBANDS

GRIPNOTCH BELTS AND NOTCHED

GRIPBANDS

USED BELT

NEW BELT

USED BELT

NEW BELT

A, AX

3.0 - 3.6

1000-2500
2501-4000

3.7
2.8

5.5
4.2

4.1
3.4

6.1
5.0

3.8 - 4.8

1000-2500
2501-4000

4.5
3.8

6.8
5.7

5.0
4.3

7.4
6.4

5.0 - 7.0

1000-2500
2501-4000

5.4
4.7

8.0
7.0

5.7
5.1

8.4
7.6

B, BX

3.4 - 4.2

860-2500

2501-4000

—
—

4.9
4.2

7.2
6.2

4.4 - 5.6

860-2500

2501-4000

5.3
4.5

7.9
6.7

7.1
6.1

10.5

9.1

5.8 - 8.6

860-2500

2501-4000

6.3
6.0

9.4
8.9

8.5
7.3

12.6
10.9

C, CX

7.0 - 9.0

500-1740

1741-3000

11.5

9.4

17.0
13.8

14.7
11.9

21.8
17.5

9.5 - 16.0

500-1740

1741-3000

14.1
12.5

21.0
18.5

15.9
14.6

23.5
21.6

12.0 - 16.0

200-850

851-1500

24.9
21.2

37.0
31.3

—
—

18.0 - 20.0

200-850

851-1500

30.4
25.6

45.2
38.0

—
—

3V, 3VX

2.2 - 2.4

1000-2500
2501-4000

—
—

3.3
2.9

4.9
4.3

2.65 - 3.65

1000-2500
2501-4000

3.6
3.0

5.1
4.4

4.2
3.8

6.2
5.6

4.12 - 6.90

1000-2500
2501-4000

4.9
4.4

7.3
6.6

5.3
4.9

7.9
7.3

5V, 5VX

4.4 - 6.7

500-1749

1750-3000
3001-4000

—
—
—

10.2

8.8
5.6

15.2
13.2

8.5

7.1 - 10.9

500-1749

1750-3000
3001-4000

12.7
11.2

18.9
16.7

14.8
13.7

22.1
20.1

11.8 - 16.0

500-1749

1750-3000
3001-4000

15.5
14.6

23.4
21.8

17.1
16.8

25.5
25.0

12.5 - 17.0

200-850

851-1500

33.0
26.8

49.3
39.9

—
—

18.0 - 22.4

200-850

851-1500

39.6
35.3

59.2
52.7

—
—

NOTICE

TENSION BELTS TO SPECIFICATION

SHOWN ON DRIVE LABEL. OVER

TENSIONING BELTS WILL SEVERELY

REDUCE BELT AND BEARING LIFE.

REPLACEMENT PARTS

BEARINGS

DRIVE

_______________________

FREE ________________________

SHAFT _________________________

WHEEL ________________________

INLET CONE ____________________

TO ORDER REPLACEMENT PARTS,

CONTACT: RCD

(REPLACEMENT COMPONENTS DIVISION)

1-800-443-4410

a39-4478

Fig. 12 — Fan Section Label

Summary of Contents for 39CCN

Page 1: ...switch before working on or near heaters Failure to follow these warnings could lead to personal injury or death WARNING CHECK the assembly and component weights to be sure that the rigging equipment can handle them safely Note also the centers of gravity and any specific rigging instructions CHECK for adequate ventilation so that fumes will not migrate through ductwork to occupied spaces when wel...

Page 2: ...tance of insulation with a Megger meter or a resistance meter The insulation resistance kV rating 1 Megohom Whenever possible store equipment indoors in a dry area and protect the fan shaft bearings and fan wheel from dust and corrosion If outdoor storage is necessary be sure to close latches on all access doors to prevent potential water and air leakage Unit should be placed on a level surface Av...

Page 3: ... static pressure This unit is designed for installation on a level surface or suspended on a level plane Follow SMACNA Sheet Metal and Air Conditioning Contractors National Association guidelines for sup ply return exhaust duct connections and minimal duct obstruction clearances Air Handler Unit Pad The foundation and floor should be level shim when necessary rigid and strong enough to support the...

Page 4: ...n from chemicals in the airstream COOLING COILS CHILLED WATER DIRECT EXPAN SION GLYCOL Cooling coils are constructed of copper tube with corrugated fins Maximum operating pressure is 150 psig An IAQ 304SS indoor air quality 304 stainless steel condensate drain pan is located under the coil with drain and vent connections Do not block the air vent this may result in poor coil performance Inlet line...

Page 5: ...tions to form tight seals Connecting Rain Hoods Be sure to allow adequate clearance to doors and other openings on the unit Use sheet metal screws to fasten the hood or hoods to the casing of the air handling units Caulk around the hood flange then carefully re move any excess caulking Electrical Installation All wiring shall be installed in accordance with the requirements of the authorities havi...

Page 6: ...ting SERVICE Monthly 1 Check supply air filters and clean or replace as required 2 Check the cooling coil condensate drain pan for proper draining and clean if necessary 3 Fan bearings with grease fittings need to be lubricated Bearings that do not have grease fittings are permanently sealed and do not require lubrication Check submittal data for types of bearings used a Fans ship from the factory...

Page 7: ...n stretching and a mismatched set of belts 2 Do not allow belt to bottom out in sheave 3 Tighten belts by turning motor adjusting jackscrews Turn each jackscrew an equal number of turns 4 Equalize belt slack so that it is on the same side of belt for all belts Failure to do so may result in uneven belt stretching 5 Tension new drives at the maximum deflection force recommended Table 3 On current p...

Page 8: ...es of operation Used belts should be maintained at the value as indicated in the chart Used Belt tensions should be used for the 8 hour and subsequent checks If the belt span was measured in centimeters then use the kilograms of force values for comparison NOTE The ratio of deflection to belt span is 1 64 in either unit of measurement Whenever possible jog start for a few revolutions or prefer abl...

Page 9: ...8 0 20 0 200 850 851 1500 30 4 25 6 45 2 38 0 3V 3VX 2 2 2 4 1000 2500 2501 4000 3 3 2 9 4 9 4 3 2 65 3 65 1000 2500 2501 4000 3 6 3 0 5 1 4 4 4 2 3 8 6 2 5 6 4 12 6 90 1000 2500 2501 4000 4 9 4 4 7 3 6 6 5 3 4 9 7 9 7 3 5V 5VX 4 4 6 7 500 1749 1750 3000 3001 4000 10 2 8 8 5 6 15 2 13 2 8 5 7 1 10 9 500 1749 1750 3000 3001 4000 12 7 11 2 18 9 16 7 14 8 13 7 22 1 20 1 11 8 16 0 500 1749 1750 3000 3...

Page 10: ...mps _____ Other UNIT FAN _____ Visually inspect wheel and fan rotation _____ Inertia base is fitted _____ Shipping tie downs are removed _____ Seismic restraints are set up _____ There are no impairments to free isolation _____ The flex power line to fan motor does not interfere with isolation _____ Check belt tension _____ Check flex connection on fan _____ Check VAV variable air volume devices a...

Page 11: ...ere is no over torquing _____ Actuators have been power operated through cycle to verify operation GENERAL _____ Entire cabinet has been visually checked and repairs made if necessary _____ Access doors have been checked for free movement and complete closure _____ All seams are sealed _____ Verify that there are no air leaks with running fan _____ Check interior of unit for loose or damaged insul...

Page 12: ...e right to discontinue or change at any time specifications or designs without notice and without incurring obligations Catalog No 04 53390017 01 Printed in U S A Form 39CC 1SI Pg 12 1 15 Replaces New Carrier Corporation 2015 ...

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