Carrier 39LH Скачать руководство пользователя страница 43

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Fan Shaft Bearing Removal

Lock open and tag electrical disconnect.

2. Enter through fan section access door or remove panels as

required.

3. Place plywood or other rigid covering on floor to protect

insulation from damage.

4. Block wheel so that it will not pinwheel due to natural

draft through the unit.

5. Loosen motor base to frame bolts. Adjust motor to re-

lease belt tension so removal of belts is done without

stretching.

Do not stretch belts over sheaves. Damage to

belt can result.

6. Remove bolts on bushing of fan shaft sheave, insert bolts

in jacking hole provided on bushing and slowly jack

bushing from sheave. Then remove bushing on sheave.

7. Loosen bearing setscrews and locking collar.
8. Remove bearing holddown bolts.
9. Remove bearing while observing the following

precautions:

a. Make certain fan shaft surface is not rough or

scored. If so, clean up surface with fine emery

cloth.

b. Add a few drops of oil after cleanup of shaft end.

10. Check fan shaft diameter at bearing mount. If worn by

more than .001 in. below nominal, shaft should be re-

placed.

11. Install new bearing, tighten holddown bolts and then

tighten bearing locking collar and setscrews.

12. Make certain fan wheel does not rub sides of fan housing

after installing new bearings.

13. Recoat fan shaft with a rust inhibitor or grease.
14. Replace sheave and belts. Adjust and align as described

in Installation sections on installing sheaves and V-belts.

15. Remove insulation protection.
16. Replace access panels.
17. Restore electrical power.

Table 14 — Filter Data

CAUTION

It should not be necessary to drive a new bearing onto

shaft. If light tapping is needed, do not tap against outer

race.

39L UNIT SIZE

Angle Filter Section

Filter Qty…Size (in.)

2…16x25

4…16x20

2…16x20
2…16x25

4…16x25

6…16x20

9…16x20

12…16x20

4…16x20
8…16x25

Nominal Face Area (sq ft)

5.56

8.89

10.00

11.11

13.33

20.00

26.67

31.11

Filter Mixing Box Section

Filter Qty…Size (in.)

2…16x25

4…16x20

2…16x20
2…16x25

4…16x25

6…16x20

9…16x20

3…16x20
6…16x25

4…16x20
8…16x25

Nominal Face Area (sq ft)

5.56

8.89

10.00

11.11

13.33

20.00

23.33

31.11

Flat Filter Section

Filter Qty…Size (in.)

2…16x16

2…20x20

2…20x25

2…16x25
1…20x25

3…20x25

6…16x20

3…16x20
3…20x20

3…20x25
3…16x25

2…16x20
2…20x20
2…20x25
2…16x25

Nominal Face Area (sq ft)

3.56

5.56

6.94

9.03

10.42

13.33

15.00

18.75

22.50

Содержание 39LH

Страница 1: ...jury to personnel and damage to equipment or property when operating this equipment use good judgment and follow safe practices as outlined below DANGER NEVER enter an enclosed fan cabinet or reach in...

Страница 2: ...ant system open to air any longer than the actual time required to service the equipment Seal circuits being serviced and charge with dry nitrogen to prevent oil contamination when timely repairs cann...

Страница 3: ...39 4441 28N 28N Coil Model Number Coil Type A Chilled Water Coil Orientation S Slant V Vertical F Full A S 4 Rows 4 6 8 12 12 16 20 22 26 32 Tubes in Face 24 30 36 38 Q Circuiting Q Quarter H Half D D...

Страница 4: ...N Coil Model Number Coil Type E Direct Expansion Coil Orientation V Vertical B Face Split Half Circuit E V 4 Rows 4 6 16 12 16 20 26 Tubes in Face 30 36 H Circuiting A Face Split Quarter Circuit Fin M...

Страница 5: ...A 1250 Position 12 is 0 if rpm is 3 digits 1 Motor Horsepower Constant Speed K Forward Curve without VFD 2 Forward Curve with VFD 03 06 08 10 12 15 18 21 25 01 02 03 04 05 06 07 08 09 10 11 12 13 hp h...

Страница 6: ...6 PRE HEAT WATER OR PRE HEAT STEAM PHW LEGEND Fig 8 Position 4 Unit Configuration Model Component Sequence Also Shown COMB Combination PH Preheat POS Position Factory installed option components...

Страница 7: ...LY 6 A B C 39LH VERTICAL HEATING SMALL FACE AREA A B C 7 ACCESSORY SECTIONS MIXING BOX 8 10 FILTER MIXING BOX 9 FILTER MIXING BOX FLAT FILTER 11 ANGLE FILTER 12 PLENUM 13 HOT WATER OR STEAM PREHEAT CO...

Страница 8: ...29 1 29 1 37 0 40 9 40 9 48 8 120 168 246 282 324 372 417 444 492 7 39LH 21 3 25 2 29 1 29 1 29 1 37 0 40 9 40 9 48 8 220 308 452 517 594 682 764 814 902 ACCESSORIES Unit Size 03 06 08 10 12 15 18 21...

Страница 9: ...which fits inside the larger one This allows the channel to be adjusted to the required length for installation Channels are shipped on top of the unit The 2 sections of each channel are shipped one...

Страница 10: ...16 3 1 2 119 16 0 77 8 1 33 4 2 39 16 18 5 51 16 5 55 16 3 415 16 3 33 8 0 77 8 1 33 4 2 117 16 21 6 51 4 6 51 8 3 415 16 3 33 8 0 77 8 1 33 4 2 117 16 25 6 51 4 6 51 8 4 015 16 2 39 16 0 77 8 1 33 4...

Страница 11: ...10 1 11 7 14 2 16 3 Chilled Water 1 2 in OD Tube Small Face Area 4 Row 2 1 3 3 3 9 4 1 5 1 6 3 7 3 8 7 9 8 6 Row 2 4 3 7 5 1 5 9 6 6 8 3 9 5 11 8 13 5 8 Row 2 7 4 1 6 4 7 4 8 4 10 7 12 1 14 7 17 2 Hot...

Страница 12: ...ENSION ROD FIELD SUPPLIED SUSPENSION CHANNEL FACTORY SUPPLIED OPTION MOUNT UNIT TO SUSPENSION CHANNELS THROUGH PROVIDED IN LIFTING BRACKET 7 16 IN DIAM HOLES FACTORY SUPPLIED BOLTS CONNECTING SUSPENSI...

Страница 13: ...flanges top and sides around the coil fan section and the accessory section See Fig 15 NOTE If the section to section gasket installed at the factory is damaged while splitting the unit obtain the re...

Страница 14: ...ust be connected to the 1 in hollow jackshaft that drives the interconnecting linkage bar Connection to any other shaft is not recommended DUCTWORK ATTACHMENT Ductwork should be flanged out and attach...

Страница 15: ...7BJ033 24 4 0 375 0 625 150 N A N A 133 90 725 33AMACTGV 266 HF27BJ034 24 6 0 475 0 750 135 N A N A 266 90 450 DIMENSIONS ft in Fig 19 Mixing Box Duct Connections UNIT 39L A B C D E F G H J K L 03 2 3...

Страница 16: ...ct Use a nonconductive nonhardening sealant Permagum manufactured by Schnee Morehead or sealing compound thumb grade manufactured by Calgon are acceptable materials POWER KNOCKOUTS Panels are not prov...

Страница 17: ...ion on factory supplied drive 1 Always adjust the motor position so that V belts can be installed without stretching over grooves Forcing belts can result in uneven stretching and a mismatched set of...

Страница 18: ...n accordance with Steps 1 6 Running the drive for a few revolutions or minutes will help seat the belt s in the groove s This relatively early re tensioning may reduce or minimize the amount of re ten...

Страница 19: ...illustrates the normal piping components and the suggested locations for high medium or low pressure steam coils The low pressure application zero to 15 psig can dispense with the in petcock for conti...

Страница 20: ...g the following precautions Install a drip line and trap on the pressure side of the inlet control valve Connect the drip line to the return line downstream of the return line trap To prevent scale or...

Страница 21: ...1 2 D 48 21 2 57 21 2 57 21 2 66 21 2 D Double Circuit F Full Circuit H Half Circuit Q Quarter Circuit SMALL FACE AREA 39LB 39LC 39LF COIL TYPE CIRCUITING UNIT SIZE 03 06 08 10 12 Face Area sq ft 2 72...

Страница 22: ...il Run full size to the trap reduce at the trap 2 Use float and thermostatic traps only for condensate re moval Trap size selection should be based on the differ ence in pressure between the steam sup...

Страница 23: ...peration is necessary 2 Bypass to be the same size as trap orifice but never less than 1 2 inch Fig 27 Dripping Steam Supply to Condensate Return NOTES 1 Flange or union is located to facilitate coil...

Страница 24: ...coil bank Fig 29 Multiple Coil Low Pressure Piping Gravity Return NOTES 1 Flange or union is located to facilitate coil removal 2 To prevent water hammer drain coil before admitting steam 3 Do not ex...

Страница 25: ...prevent excessive heat from reaching diaphragm and internal parts Do not allow water to enter system Disassemble expansion valve before soldering if accessible for easy reassembly Use 95 5 tin antimo...

Страница 26: ...w Split 13 15 16 18 18 18 18 18 18 Distributor Nozzle Size 2 2 3 4 4 5 5 6 6 6 ROW COIL Circuit Equivalent Length ft 39 20 47 24 51 26 59 30 67 34 Distributor Tube Length in Face Split 11 11 11 13 13...

Страница 27: ...lit 111 2 111 2 111 2 111 2 111 2 13 111 2 13 111 2 13 Row Split 111 2 13 15 16 16 181 2 16 181 2 16 181 2 Distributor Nozzle Size 11 2 11 2 21 2 3 4 4 5 5 5 5 8 ROW COIL Circuit Equivalent Length ft...

Страница 28: ...7 Fig 35 Expansion Valve Piping Fig 36 Distributor and Hot Gas Bypass Auxiliary Side Connector SPORLAN TYPE CARRIER PART NO CONNECTION SIZES in USED WITH DISTRIBUTOR TYPE NOZZLE SIZE Inlet ODM Solder...

Страница 29: ...COIL Manifolding for 2 Face Splits Refer to Fig 38 and exter nally manifold as follows 1 Connect the 4 expansion valves to the 4 distributors on each coil and connect the 4 suction lines to the 15 dia...

Страница 30: ...30 TXV Thermostatic Expansion Valve Fig 38 Face Split Coil Manifolding Typical TXV Thermostatic Expansion Valve Fig 39 Row Split Coil Manifolding Typical...

Страница 31: ...ct switch or main circuit breaker in accor dance with NEC and other applicable codes Locate so that it is easily accessible and within sight of heater control box per NEC Article 424 19 and 424 65 Wea...

Страница 32: ...32 NOTE All wiring must be copper and must conform to the NEC National Electrical Code Fig 41 Typical Electric Heater Wiring Schematic...

Страница 33: ...175 114 142 3 150 57 71 2 80 72 90 2 90 51 8 500 53 144 180 3 200 125 156 3 175 62 78 2 80 79 98 2 100 59 8 500 62 72 90 2 100 91 114 2 125 12 7 3 6 19 9 500 17 55 69 2 70 48 60 1 60 24 30 1 30 30 38...

Страница 34: ...port must be removed To change from upblast to horizontal discharge or from horizontal to upblast discharge the bearings must be relocated to keep the wheel centered in the housing To change from upbl...

Страница 35: ...r freedom of movement 2 Check tightness of bearing setscrews or locking collars Fig 44 Also check tightness of setscrews on fan wheels and sheaves 3 Check tightness of fan shaft bearing mounting 4 Rec...

Страница 36: ...ff motor power 2 Disconnect and tag power wires at motor terminals 3 Loosen motor brace to mounting rail attaching bolts Loosen belt tensioning bolts to adjust the motor position so V belts can be rem...

Страница 37: ...are shipped see Fig 46 bottom coil baffle side hairpin baffle side header baffle top coil baffle These parts should be field installed onto the coil before placing the coil into the unit Once the baf...

Страница 38: ...g 46 Field Installed Coils 39LA and LD only LEGEND Fig 47 Horizontal Unit Slant Coil Removal 39LA Units Sizes 03 21 1 Accessory Side Panel 8 Condensate Baffle 2 Left Side Panel 9 Holddown Screws 3 Top...

Страница 39: ...er 6 Remove screws from inside baffle item 14 Leave baffle attached to left side panel Item 16 7 Remove left side panel Item 16 NOTE Support of fan section may be required after re moval of side panel...

Страница 40: ...baffle to coil 4 Remove side panel s Item 6 NOTE Vertical units may require support of fan section after removal of side panels 5 If accessory is present remove accessory side panel Item 1 on left sid...

Страница 41: ...om end of unit New holes must be cut in coil cover panel Original holes must be plugged and insulated New side panels may be necessary when changing coil hand NU FIN COILS The NuFin coil is airflow di...

Страница 42: ...ill fail closed 7 Check operation of vacuum breakers 8 Check operation of the thermal protection devices used for freeze up protection 9 Steam or condensate should not be allowed to remain in the coil...

Страница 43: ...tighten holddown bolts and then tighten bearing locking collar and setscrews 12 Make certain fan wheel does not rub sides of fan housing after installing new bearings 13 Recoat fan shaft with a rust i...

Страница 44: ...44 16 20 25 16 20 25 25 25 16 20 20 SIZE 21 SIZE 25 Fig 52 Filter Arrangement 2 in and 4 in Flat...

Страница 45: ...eel is recommended Lubrication MOTORS Lubricate in accordance with nameplate at tached to motor or with manufacturer s recommendations included with motor BEARINGS Fan Bearings Lubricate fan bearings...

Страница 46: ...fan discharge panel Fig 56 2 Remove all of the panels from the fan section Fig 57 3 Remove the fan by removing the 4 screws on the corner of the fan sled On larger units the fan sled may be ex tremely...

Страница 47: ...47 METRIC CONVERSION CHART...

Страница 48: ...ght to discontinue or change at any time specifications or designs without notice and without incurring obligations Catalog No 04 53390016 01 Printed in U S A Form 39L 7SI Pg 48 816 3 14 Replaces 39L...

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